Juniper JN Number: JN0-633 Passing Score: 800 Time Limit: 120 min File Version: 1.0. Juniper JN0-633 Exam

Transcription

1 Juniper JN0-633 Number: JN0-633 Passing Score: 800 Time Limit: 120 min File Version: Juniper JN0-633 Exam Security, Professional (JNCIP-SEC) Version: 6.0

2 Exam A QUESTION 1 What are two AppSecure modules? (Choose two.) A. AppDoS B. AppFlow C. AppTrack D. AppNAT Correct Answer: AC /Reference: : Reference : Page No 2 Figure 1 QUESTION 2 You are working as a security administrator and must configure a solution to protect against distributed botnet attacks on your company's central SRX cluster. How would you accomplish this goal? A. Configure AppTrack to inspect and drop traffic from the malicious hosts. B. Configure AppQoS to block the malicious hosts. C. Configure AppDoS to rate limit connections from the malicious hosts. D. Configure AppID with a custom application to block traffic from the malicious hosts. Correct Answer: C /Reference: : Reference : Page No 2 Figure 1 QUESTION 3 You are asked to change the configuration of your company's SRX device so that you can block nested traffic from certain Web sites, but the main pages of these Web sites must remain available to users.

3 Which two methods will accomplish this goal? (Choose two.) A. Enable the HTTP ALG. B. Implement a firewall filter for Web traffic. C. Use an IDP policy to inspect the Web traffic. D. Configure an application firewall rule set. Correct Answer: BD /Reference: : Reference: An application layer gateway (ALG) is a feature on ScreenOS gateways that enables the gateway to parse application layer payloads and take decisions on them. ALGs are typically employed to support applications that use the application layer payload to communicate the dynamic Transmission Control Protocol (TCP) or User Datagram Protocol (UDP) ports on which the applications open data connections ( IDP policy defines the rule for defining the type of traffic permitted on network ( enable-idp-security-policy-section.html) QUESTION 4 You are using the AppDoS feature to control against malicious bot client attacks. The bot clients are using file downloads to attack your server farm. You have configured a context value rate of 10,000 hits in 60 seconds. At which threshold will the bot clients no longer be classified as malicious? A hits in 60 seconds B hits in 60 seconds C hits in 60 seconds D hits in 60 seconds Correct Answer: B /Reference: : Reference :

4 QUESTION 5 Your company's network has seen an increase in Facebook-related traffic. You have been asked to restrict the amount of Facebook-related traffic to less than 100 Mbps regardless of congestion. What are three components used to accomplish this task? (Choose three.) A. IDP policy B. application traffic control C. application firewall D. security policy E. application signature Correct Answer: BDE /Reference: : An IDP policy defines how your device handles the network traffic. It will not limit the rate. Reference: Application Firewall enforces protocol and policy control at Layer 7. It inspects the actual content of the payload and ensures that it conforms to the policy, rather than limiting the rate. Reference: QUESTION 6 You recently implemented application firewall rules on an SRX device to act upon encrypted traffic. However, the encrypted traffic is not being correctly identified. Which two actions will help the SRX device correctly identify the encrypted traffic? (Choose two.)

5 A. Enable heuristics to detect the encrypted traffic. B. Disable the application system cache. C. Use the junos:unspecified-encrypted application signature. D. Use the junos:specified-encrypted application signature. Correct Answer: AC /Reference: : Reference: QUESTION 7 You have just created a few hundred application firewall rules on an SRX device and applied them to the appropriate firewall polices. However, you are concerned that the SRX device might become overwhelmed with the increased processing required to process traffic through the application firewall rules. Which three actions will help reduce the amount of processing required by the application firewall rules? (Choose three.) A. Use stateless firewall filtering to block the unwanted traffic. B. Implement AppQoS to drop the unwanted traffic. C. Implement screen options to block the unwanted traffic. D. Implement IPS to drop the unwanted traffic. E. Use security policies to block the unwanted traffic. Correct Answer: ACE /Reference: : IPS and AppDoS are the most powerful, and thus, the least efficient method of dropping traffic on the SRX, because IPS and AppDoS tend to take up the most processing cycles. Reference : QUESTION 8 Referring to the following output, which command would you enter in the CLI to produce this result?

6 A. show class-of-service interface ge-2/1/0 B. show interface flow-statistics ge-2/1/0 C. show security flow statistics D. show class-of-service applications-traffic-control statistics rate-limiter Correct Answer: D /Reference: : Reference : show-class-of-service-application-traffic-control-statistics-rate-limiter.html QUESTION 9 You are asked to apply individual upload and download bandwidth limits to YouTube traffic. Where in the configuration would you create the necessary bandwidth limits? A. under the [edit security application-firewall] hierarchy B. under the [edit security policies] hierarchy C. under the [edit class-of-service] hierarchy D. under the [edit firewall policer <policer-name>] hierarchy Correct Answer: D

7 /Reference: : Reference : QUESTION 10 You want to verify that all application traffic traversing your SRX device uses standard ports. For example, you need to verify that only DNS traffic runs through port 53, and no other protocols. How would you accomplish this goal? A. Use an IDP policy to identify the application regardless of the port used. B. Use a custom ALG to detect the application regardless of the port used. C. Use AppTrack to detect the application regardless of the port used. D. Use AppID to detect the application regardless of the port used. Correct Answer: A /Reference: : AppTrack for detailed visibility of application traffic Also AppTrack is aka AppID Reference : An Application Layer Gateway (ALG) is a software component that is designed to manage specific protocols Reference : QUESTION 11 You are asked to establish a baseline for your company's network traffic to determine the bandwidth usage per application. You want to undertake this task on the central SRX device that connects all segments together. What are two ways to accomplish this goal? (Choose two.) A. Configure a mirror port on the SRX device to capture all traffic on a data collection server for further investigation. B. Use interface packet counters for all permitted and denied traffic and calculate the values using Junos scripts. C. Send SNMP traps with bandwidth usage to a central SNMP server. D. Enable AppTrack on the SRX device and configure a remote syslog server to receive AppTrack messages. Correct Answer: AD

8 /Reference: : AppTrack is used for visibility for application usage and bandwidth Reference: QUESTION 12 Microsoft has altered the way their Web-based Hotmail application works. You want to update your application firewall policy to correctly identify the altered Hotmail application. Which two steps must you take to modify the application? (Choose two.) A. user@srx> request services application-identification application copy junos:hotmail B. user@srx> request services application-identification application enable junos:hotmail C. user@srx# edit services custom application-identification my:hotmail D. user@srx# edit services application-identification my:hotmail Correct Answer: AD /Reference: : Reference: request-services-application-identification-application.html QUESTION 13 Two companies, A and B, are connected as separate customers on an SRX5800 residing on two virtual routers (VR-A and VR-B). These companies have recently been merged and now operate under a common IT security policy. You have been asked to facilitate communication between these VRs. Which two methods will accomplish this task? (Choose two.) A. Use instance-import to share the routes between the two VRs. B. Create logical tunnel interfaces to interconnect the two VRs. C. Use a physical connection between VR-A and VR-B to interconnect them. D. Create a static route using the next-table action in both VRs. Correct Answer: AD /Reference:

9 : Logical or physical connections between instances on the same Junos device and route between the connected instances Reference : QUESTION 14 You have been asked to configure traffic to flow between two virtual routers (VRs) residing on two unique logical systems (LSYSs) on the same SRX5800. How would you accomplish this task? A. Configure a security policy that contains the context from VR1 to VR2 to permit the relevant traffic. B. Configure a security policy that contains the context from LSYS1 to LSYS2 and relevant match conditions in the rule set to allow traffic between the IP networks in VR1 and VR2. C. Configure logical tunnel interfaces between VR1 and VR2 and security policies that allow relevant traffic between VR1 and VR2 over that link. D. Configure an interconnect LSYS to facilitate a connection between LSYS1 and LSYS2 and relevant policies to allow the traffic. Correct Answer: C /Reference: : Reference : QUESTION 15 You are responding to a proposal request from an enterprise with multiple branch offices. All branch offices connect to a single SRX device at a centralized location. The request requires each office to be segregated on the central SRX device with separate IP networks and security considerations. No single office should be able to starve the CPU from other branch offices on the central SRX device due to the number of flow sessions. However, connectivity between offices must be maintained. Which three features are required to accomplish this goal? (Choose three.) A. Logical Systems B. Interconnect Logical System C. Virtual Tunnel Interface D. Logical Tunnel Interface E. Virtual Routing Instance Correct Answer: ABD

10 /Reference: : Reference : html security/software-all/logical-systems-config/index.html?topic html QUESTION 16 Your company provides managed services for two customers. Each customer has been segregated within its own routing instance on your SRX device. Customer A and customer B inform you that they need to be able to reach certain hosts on each other's network. Which two configuration settings would be used to share routes between these routing instances? (Choose two.) A. routing-group B. instance-import C. import-rib D. next-table Correct Answer: BD /Reference: : Reference : QUESTION 17 You are using logical systems to segregate customers. You have a requirement to enable communication between the logical systems. What are two ways to accomplish this goal? (Choose two.) A. Use a shared DMZ zone to connect the logical systems together. B. Use a virtual tunnel (vt-) interface to connect the logical systems together. C. Use an external cable to connect the ports from the two logical systems. D. Use an interconnect LSYS to connect the logical systems together. Correct Answer: CD

11 /Reference: : Reference : security/software-all/logical-systems-config/index.html?topic html QUESTION 18 Your company is providing multi-tenant security services on an SRX5800 cluster. You have been asked to create a new logical system (LSYS) for a customer. The customer must be able to access and manage new resources within their LSYS. How do you accomplish this goal? A. Create the new LSYS, allocate resources, and then create the user administrator role so that the customer can manage their allocated resources. B. Create the new LSYS, and then create the user administrator role so that the customer can allocate and manage resources. C. Create the new LSYS, and then create the master adminstrator role for the LSYS so that the customer can allocate and manage resources. D. Create the new LSYS, then request the required resources from the customer, and create the required resources. Correct Answer: A /Reference: : Reference : QUESTION 19 Your company has added a connection to a new ISP and you have been asked to send specific traffic to the new ISP. You have decided to implement filter-based forwarding. You have configured new routing instances with type forwarding. You must direct traffic into each instance. Which step would accomplish this goal? A. Add a firewall filter to the ingress interface that specifies the intended routing instance as the action. B. Create a routing policy to direct the traffic to the required forwarding instances. C. Configure the ingress and egress interfaces in each forwarding instance. D. Create a static default route for each ISP in inet.0, each pointing to a different forwarding instance. Correct Answer: A /Reference: :

12 Reference : QUESTION 20 You have implemented a tunnel in your network using DS-Lite. The tunnel is formed between one of the SRX devices in your network and a DS-Lite-compatible CPE device in your customer's network. Which two statements are true about this scenario? (Choose two.) A. The SRX device will serve as the softwire initiator and the customer CPE device will serve as the softwire concentrator. B. The SRX device will serve as the softwire concentrator and the customer CPE device will serve as the softwire initiator. C. The infrastructure network supporting the tunnel will be based on IPv4. D. The infrastructure network supporting the tunnel will be based on IPv6. Correct Answer: BD /Reference: : Reference: QUESTION 21 You are asked to merge the corporate network with the network from a recently acquired company. Both networks use the same private IPv4 address space ( /24). An SRX device serves as the gateway for each network. Which solution allows you to merge the two networks without adjusting the current address assignments? A. source NAT B. persistent NAT C. double NAT D. NAT444 Correct Answer: C /Reference: : Reference : QUESTION 22

13 You want requests from the same internal transport address to be mapped to the same external transport address. Only internal hosts can initialize the session. Which Junos configuration setting supports the requirements? A. any-remote-host B. target-host C. source-host D. address-persistent Correct Answer: D /Reference: : Reference : QUESTION 23 Which statement is true regarding dual-stack lite? A. The softwire is an IPv4 tunnel over an IPv6 network. B. The softwire initiator (SI) encapsulates IPv6 packets in IPv4. C. The softwire concentrator (SC) decapsulates softwire packets. D. SRX devices support the softwire concentrator and softwire initiator functionality. Correct Answer: C /Reference: : Reference: QUESTION 24 Which two statements are true regarding DNS doctoring? (Choose two.) A. DNS doctoring translates the DNS CNAME payload. B. DNS doctoring for IPv4 is supported on SRX devices. C. DNS doctoring for IPv4 and IPv6 is supported on SRX devices.

14 D. DNS doctoring translates the DNS A-record. Correct Answer: BD /Reference: : Reference : security/software-all/security/index.html?topic html QUESTION 25 In which situation is NAT proxy NDP required? A. when translated addresses belong to the same subnet as the ingress interface B. when filter-based forwarding and static NAT are used on the same interface C. when working with static NAT scenarios D. when the security device operates in transparent mode Correct Answer: C /Reference: : When IP addresses are in the same subnet of the ingress interface, NAT proxy ARP configured Reference : security/security-nat.pdf Reference : QUESTION 26 Which statement is true about NAT? A. When you implement destination NAT, the router does not apply ALG services. B. When you implement destination NAT, the router skips source NAT rules for the initiating traffic flow. C. When you implement static NAT, each packet must go through a route lookup. D. When you implement static NAT, the router skips destination NAT rules for the initiating traffic flow.

15 Correct Answer: D /Reference: : The NAT type determines the order in which NAT rules are processed. During the first packet processing for a flow, NAT rules are applied in the following order: Reference : QUESTION 27 You have configured static NAT for a Web server in your DMZ. Both internal and external users can reach the Web server using its IP address. However, only internal users are able to reach the Web server using its DNS name. External users receive an error message from their browser. Which action would solve this problem? A. Modify the security policy. B. Disable Web filtering. C. Use destination NAT instead of static NAT. D. Use DNS doctoring. Correct Answer: D /Reference: : Reference : QUESTION 28 Which two are required for the SRX device to perform DNS doctoring? (Choose two.)

16 A. DNS ALG B. dns-doctoring stanza C. name-server D. static NAT Correct Answer: AD /Reference: : Reference : security/security-alg-dns.pdf QUESTION 29 You want to implement persistent NAT for an internal resource so that external hosts are able to initiate communications to the resource, without the internal resource having previously sent packets to the external hosts. Which configuration setting will accomplish this goal? A. persistent-nat permit target-host B. persistent-nat permit any-remote-host C. persistent-nat permit target-host-port D. address-persistent Correct Answer: B /Reference: : Reference : QUESTION 30 Your SRX device is performing NAT to provide an internal resource with a public address. Your DNS server is on the same network segment as the server. You want your internal hosts to be able to reach the internal resource using the DNS name of the resource. How do you accomplish this goal? A. Implement proxy ARP.

17 B. Implement NAT-Traversal. C. Implement NAT hairpinning. D. Implement persistent NAT. Correct Answer: A /Reference: : Reference : QUESTION 31 You are asked to provide access for an external VoIP server to VoIP phones in your network using private addresses. However, due to security concerns, the VoIP server should only be able to initiate connections to each phone once the phone has logged into the VoIP server. The VoIP server requires access to the phones using multiple ports. Which type of persistent NAT is required? A. any-remote-host B. target-host C. target-host-port D. remote-host Correct Answer: B /Reference: : Reference : QUESTION 32 You must configure a central SRX device connected to two branch offices with overlapping IP address space. The branch office connections to the central SRX device must reside in separate routing instances. Which two components are required? (Choose two.) A. virtual routing instance

18 B. forwarding instance C. static NAT D. persistent NAT Correct Answer: AC /Reference: : Reference : QUESTION 33 You are attempting to establish an IPsec VPN between two SRX devices. However, there is another device between the SRX devices that does not pass traffic that is using UDP port How would you resolve this problem? A. Enable NAT-T. B. Disable NAT-T. C. Disable PAT. D. Enable PAT. Correct Answer: B /Reference: : NAT-T also uses UDP port 4500 (by default) rather than the standard UDP. So disabling NAT-T will resolve this issue. Reference : AJ&url=http%3A%2F%2Fchimera.labs.oreilly.com%2Fbooks%2F %2Fch10.html& ei=nzrtuzhho4vjrqezmocwaw&usg=afqjcngu05batnfu1vxngssixhtcbonbnw&sig2=ikzzp NQqiH2xrsjveXIleA&bvm=bv ,d.bmk QUESTION 34 Given the following session output: Session ID., Policy name. default-policy-00/2, StatE. Active, Timeout: 1794, Valid

19 In: 2001:660:1000:8c00::b/ > 2001:660:1000:9002::aafe/80;tcp, IF. reth0.0, Pkts: 4, Bytes:574 Out: /80 --> /24770;tcp, IF. reth1.0, Pkts: 3, Bytes: Which statement is correct about the security flow session output? A. This session is about to expire. B. NAT64 is used. C. Proxy NDP is used for this session. D. The IPv4 Web server runs services on TCP port Correct Answer: B /Reference: : Reference : QUESTION 35 You are asked to deploy a group VPN between various sites associated with your company. The gateway devices at the remote locations are SRX240 devices. Which two statements about the new deployment are true? (Choose two.) A. The networks at the various sites must use NAT. B. The participating endpoints in the group VPN can belong to a chassis cluster. C. The networks at the various sites cannot use NAT. D. The participating endpoints in the group VPN cannot be part of a chassis cluster. Correct Answer: CD /Reference: : Reference : com/redx/tools/mb_download.php/mid.x6d f3d/manual_configuring_ Group_VPN_Juniper_SRX.pdf Guide_v1.2.pdf

20 QUESTION 36 You are asked to deploy dynamic VPNs between the corporate office and remote employees that work from home. The gateway device at the corporate office consists of a pair of SRX650s in a chassis cluster. Which two statements about the deployment are true? (Choose two.) A. The SRX650s must be separated as standalone devices to support the dynamic VPNs. B. The remote clients must install client software to establish a tunnel with the corporate network. C. The remote clients must reside behind an SRX device configured as the local tunnel endpoint. D. The SRX650 must have HTTP or HTTPS enabled to aid in the client software distribution process. Correct Answer: BD /Reference: : Reference : QUESTION 37 You are asked to deploy dynamic VPNs between the corporate office and remote employees that work from home. The gateway device at the corporate office is a chassis cluster formed from two SRX240s. Which two statements about this deployment are true? (Choose two.) A. You must remove the SRX240s from the chassis cluster before enabling the dynamic VPNs. B. The remote clients can run Windows XP, Windows Vista, Windows 7, or OS X operating systems. C. If more than two dynamic VPN tunnels are required, you must purchase and install a new license. D. The remote users can be authenticated by the SRX240s or a configured RADIUS server. Correct Answer: CD /Reference: : Reference : QUESTION 38 You are asked to implement IPsec tunnels between your SRX devices located at various locations.

21 You will use the public key infrastructure (PKI) to verify the identification of the endpoints. What are two certificate enrollment options available for this deployment? (Choose two.) A. Manually generating a PKCS10 request and submitting it to an authorized CA. B. Dynamically generating and sending a certificate request to an authorized CA using OCSP. C. Manually generating a CRL request and submitting that request to an authorized CA. D. Dynamically generating and sending a certificate request to an authorized CA using SCEP. Correct Answer: AD /Reference: : Reference: Page 9 configuring-and-troubleshooting-public-key-infrastructure.pdf QUESTION 39 Which statement is true regarding the dynamic VPN feature for Junos devices? A. Only route-based VPNs are supported. B. Aggressive mode is not supported. C. Preshared keys for Phase 1 must be used. D. It is supported on all SRX devices. Correct Answer: C /Reference: : Reference: security/security-vpn-dynamic.pdf QUESTION 40 You are asked to design a solution to verify IPsec peer reachability with data path forwarding. Which feature would meet the design requirements?

22 A. DPD over Phase 1 SA B. DPD over Phase 2 SA C. VPN monitoring over Phase 1 SA D. VPN monitoring over Phase 2 SA Correct Answer: D /Reference: : Reference : QUESTION 41 What are three advantages of group VPNs? (Choose three.) A. Supports any-to-any member connectivity. B. Provides redundancy with cooperative key servers. C. Eliminates the need for full mesh VPNs. D. Supports translating private to public IP addresses. E. Preserves original IP source and destination addresses. Correct Answer: ACE /Reference: : Reference : com/redx/tools/mb_download.php/mid.x6d f3d/manual_configuring_ Group_VPN_Juniper_SRX.pdf QUESTION 42 You have been asked to establish a dynamic IPsec VPN between your SRX device and a remote user. Regarding this scenario, which three statements are correct? (Choose three.) A. You must use preshared keys. B. IKE aggressive mode must be used.

23 C. Only predefined proposal sets can be used. D. Only policy-based VPNs are supported. E. You can use all methods of encryption. Correct Answer: ABD /Reference: : Reference : QUESTION 43 You want to implement an IPsec VPN on an SRX device using PKI certificates for authentication. As part of the implementation, you are required to ensure that the certificate submission, renewal, and retrieval processes are handled automatically from the certificate authority. Regarding this scenario, which statement is correct? A. You can use SCEP to accomplish this behavior. B. You can use OCSP to accomplish this behavior. C. You can use CRL to accomplish this behavior. D. You can use SPKI to accomplish this behavior. Correct Answer: A /Reference: : Reference: Page 9 configuring-and-troubleshooting-public-key-infrastructure.pdf QUESTION 44 You have a group IPsec VPN established with a single key server and five client devices. Regarding this scenario, which statement is correct? A. There is one unique Phase 1 security association and five unique Phase 2 security associations used for this group.

24 B. There is one unique Phase 1 security association and one unique Phase 2 security association used for this group. C. There are five unique Phase 1 security associations and five unique Phase 2 security associations used for this group. D. There are five unique Phase 1 security associations and one unique Phase 2 security association used for this group. Correct Answer: D /Reference: : Reference : com/redx/tools/mb_download.php/mid.x6d f3d/manual_configuring_ Group_VPN_Juniper_SRX.pdf QUESTION 45 You are asked to implement an IPsec VPN between your main office and a new remote office. The remote office receives its IKE gateway address from their ISP dynamically. Regarding this scenario, which statement is correct? A. Configure a fully qualified domain name (FQDN) as the IKE identity. B. Configure the dynamic-host-address option as the IKE identity. C. Configure the unnumbered option as the IKE identity. D. Configure a dynamic host configuration name (DHCN) as the IKE identity. Correct Answer: A /Reference: : QUESTION 46 You are asked to implement a point-to-multipoint hub-and-spoke topology in a mixed vendor environment. The hub device is running the Junos OS and the spoke devices are different vendor devices. Regarding this scenario, which statement is correct? A. The NHTB table must be statically defined. B. The NHTB table is automatically created during Phase 2. C. The NHTB table is automatically created during Phase 1.

25 D. The NHTB table must be imported from each spoke. Correct Answer: A /Reference: : Reference QUESTION 47 You have recently deployed a dynamic VPN. Some remote users are complaining that they cannot authenticate through the SRX device at the corporate network. The SRX device serves as the tunnel endpoint for the dynamic VPN. What are two reasons for this problem? (Choose two.) A. The supported number of users has been exceeded for the applied license. B. The users are connecting to the portal using Windows Vista. C. The SRX device does not have the required user account definitions. D. The SRX device does not have the required access profile definitions. Correct Answer: AD /Reference: : Reference : syslog-messages/index.html?jd0e28566.html QUESTION 48 You have recently deployed a dynamic VPN. The remote users are complaining that communications with devices on the same subnet as the SRX device are intermittent and often fail. The tunnel is stable and up, and communications with remote devices on different subnets work without any issues. Which configuration setting would resolve this issue? A. adding local-redirect at the [edit security nat] hierarchy B. adding local-redirect at the [edit interfaces <interface-name>] hierarchy C. adding proxy-arp at the [edit security nat] hierarchy

26 D. adding proxy-arp at the [edit interfaces <interface-name>] hierarchy Correct Answer: C /Reference: : Reference : QUESTION 49 Your company is using a dynamic VPN configuration on their SRX device. Your manager asks you to enforce password expiration policies for all VPN users. Which authentication method meets the requirement? A. local password database B. TACACS+ C. RADIUS D. LDAP Correct Answer: D /Reference: : Reference : QUESTION 50 You are asked to implement a monitoring feature that periodically verifies that the data plane is working across your IPsec VPN. Which configuration will accomplish this task? A. [edit security ike] user@srx# show policy policy-1 { mode main; proposal-set standard; pre-shared-key ascii-text "$9$URiqPFnCBIc5QIcylLXUjH"; ## SECRET-DATA gateway my-gateway { ike-policy policy-1;

27 address ; dead-peer-detection; external-interface ge-0/0/1 B. [edit security ipsec] show policy policy-1 { proposal-set standard; vpn my-vpn { bind-interface st0.0; dead-peer-detection; ike { gateway my-gateway; ipsec-policy policy-1; establish-tunnels immediately; C. [edit security ike] user@srx# show policy policy-1 { mode main; proposal-set standard; pre-shared-key ascii-text "$9$URiqPFnCBIc5QIcylLXUjH"; ## SECRET-DATA gateway my-gateway { ike-policy policy-1; address ; vpn-monitor; external-interface ge-0/0/1; D. [edit security ipsec] user@srx# show policy policy-1 { proposal-set standard; vpn my-vpn { bind-interface st0.0; vpn-monitor; ike { gateway my-gateway;

28 ipsec-policy policy-1; establish-tunnels immediately; Correct Answer: D /Reference: : Reference: security/software-all/monitoring-and-troubleshooting/index.html?topic html QUESTION 51 You want to implement a hub-and-spoke VPN topology using a single logical interface on the hub. Which st0 interface configuration is correct for the hub device? A. [edit interfaces] user@srx# show st0 { multipoint unit 0 { family inet { address /24; B. [edit interfaces] user@srx# show st0 { unit 0 { family inet { address /24; C. [edit interfaces] user@srx# show st0 { unit 0 {

29 point-to-point; family inet { address /24; D. [edit interfaces] user@srx# show st0 { unit 0 { multipoint; family inet { address /24; Correct Answer: D /Reference: : Reference: html QUESTION 52 You have an existing group VPN established in your internal network using the group-id 1. You have been asked to configure a second group using the group-id 2. You must ensure that the key server for group 1 participates in group 2 but is not the key server for that group. Which statement is correct regarding the group configuration on the current key server for group 1? A. You must configure both groups at the [edit security ipsec vpn] hierarchy. B. You must configure both groups at the [edit security group-vpn member] hierarchy. C. You must configure both groups at the [edit security ike] hierarchy. D. You must configure both groups at the [edit security group-vpn] hierarchy. Correct Answer: D

30 /Reference: : Reference: security/software-all/security/index.html?topic html QUESTION 53 What are the three types of attack objects used in an IPS engine? (Choose three.) A. signature B. chargen C. compound D. component E. anomaly Correct Answer: ACE /Reference: : Reference: QUESTION 54 At which two times does the IPS rulebase inspect traffic on an SRX device? (Choose two.) A. When traffic matches the active IDP policy. B. When traffic first matches an IDP rule with the terminal parameter. C. When traffic uses the application layer gateway. D. When traffic is established in the firewall session table. Correct Answer: AB /Reference: Reference:

31 rulebase+inspects+traffic+on+srx&source=bl&ots=_ede_vlnba&sig=1i4yx_s0ovkqvprql273lamcye& hl=en&sa=x&ei=nqvzufn1isrraf71ohyba& ved=0cc4q6aewaq#v=onepage&q=what%20time%20ips%20rulebase%20inspe cts%20traffic%20on%20srx&f=false QUESTION 55 Which three match condition objects are required when creating IPS rules? (Choose three.) A. attack objects B. address objects C. terminal objects D. IP action objects E. zone objects Correct Answer: ABE /Reference: : Reference: QUESTION 56 Which problem is introduced by setting the terminal parameter on an IPS rule? A. The SRX device will stop IDP processing for future sessions. B. The SRX device might detect more false positives. C. The SRX device will terminate the session in which the terminal rule detected the attack. D. The SRX device might miss attacks. Correct Answer: D /Reference: : Reference:

32 QUESTION 57 You have installed a new IPS license on your SRX device and successfully downloaded the attack signature database. However, when you run the command to install the database, the database fails to install. What are two reasons for the failure? (Choose two.) A. The file system on the SRX device has insufficient free space to install the database. B. The downloaded signature database is corrupt. C. The previous version of the database must be uninstalled first. D. The SRX device does not have the high memory option installed. Correct Answer: AB /Reference: : We don t need to uninstall the previous version to install a new license, as we can update the same. Reference: Also high memory option is licensed feature. The only reason for failure is either there is no space left or downloaded file is corrupted due to incomplete download because of internet termination in between. Reference: QUESTION 58 You want to create a custom IDP signature for a new HTTP attack on your SRX device. You have the exact string that identifies the attack. Which two additional elements do you need to define your custom signature? (Choose two.) A. service context B. protocol number C. direction D. source IP address of the attacker Correct Answer: AC /Reference: : Reference:

33 QUESTION 59 An external host is attacking your network. The host sends an HTTP request to a Web server, but does not include the version of HTTP in the request. Which type of attack is being performed? A. signature-based attack B. application identification C. anomaly D. fingerprinting Correct Answer: C /Reference: : Reference; HTML/HTTP%3AINVALID%3AMSNG-HTTP-VER.html QUESTION 60 You configured a custom signature attack object to match specific components of an attack: HTTP-request Pattern.*\x Direction: client-to-server Which client traffic would be identified as an attack? A. HTTP GET.*\x B. HTTP POST.*\x C. HTTP GET.*x D. HTTP POST.*x Correct Answer: A /Reference: : Reference:

34 QUESTION 61 You are deploying a standalone SRX650 in transparent mode for evaluation purposes in a potential client's network. The client will need to access the device to modify security policies and perform other various configurations. Where would you configure a Layer 3 interface to meet this requirement? A. fxp0.0 B. vlan.1 C. irb.1 D. ge-0/0/0.0 Correct Answer: C /Reference: : Reference: topic-collections/security/software-all/layer-2/index.html?topic html QUESTION 62 Which two configuration components are required for enabling transparent mode on an SRX device? (Choose two.) A. IRB B. bridge domain C. interface family bridge D. interface family ethernet-switching Correct Answer: BC /Reference: : Reference: QUESTION 63 You want to configure in-band management of an SRX device in transparent mode. Which command is required to enable this functionality?

35 A. set interfaces irb unit 1 family inet address B. set interfaces vlan unit 1 family inet address C. set interfaces ge-0/0/0 unit 0 family inet address D. set interfaces ge-0/0/0 unit 0 family bridge address Correct Answer: A /Reference: : Reference: QUESTION 64 For an SRX chassis cluster in transparent mode, which action occurs to signal a high availability failover to neighboring switches? A. the SRX chassis cluster generates Spanning Tree messages B. the SRX chassis cluster generates gratuitous ARPs C. the SRX chassis cluster flaps the former active interfaces D. the SRX chassis cluster uses IP address monitoring Correct Answer: C /Reference: : Reference: s+cluster+flaps+the+former+active+interfaces&source=bl&ots=_ede_vrmyw&sig=x- Px98kZEi4hZvGflcoybABdMRQ&hl=en&sa=X&ei=iMLzUcDSLcfRrQeQw4CYCA&ved=0CEAQ6A EwBA#v=onepage&q=flap&f=false QUESTION 65 What is the default action for an SRX device in transparent mode to determine the outgoing interface for an unknown destination MAC address? A. Perform packet flooding. B. Send an ARP query. C. Send an ICMP packet with a TTL of 1.

36 D. Perform a traceroute request. Correct Answer: A /Reference: : Reference: QUESTION 66 Which QoS function is supported in transparent mode? A p B. DSCP C. IP precedence D. MPLS EXP Correct Answer: A /Reference: : Reference: QUESTION 67 You are asked to configure class of service (CoS) on an SRX device running in transparent mode. Which command would you use? A. set interfaces ge-0/0/0 unit 0 classifiers dscp priority-app B. set class-of-service interfaces ge-0/0/0 unit 0 classifiers dscp priority-app C. set class-of-service interfaces ge-0/0/0 unit 0 classifiers ieee priority-app D. set interfaces ge-0/0/0 unit 0 classifiers inet-precedence priority-app Correct Answer: C

37 /Reference: : Reference: QUESTION 68 A security administrator has configured an IPsec tunnel between two SRX devices. The devices are configured with OSPF on the st0 interface and an external interface destined to the IPsec endpoint. The adminstrator notes that the IPsec tunnel and OSPF adjacency keep going up and down. Which action would resolve this issue? A. Create a firewall filter on the st0 interface to permit IP protocol 89. B. Configure the IPsec tunnel to accept multicast traffic. C. Create a /32 static route to the IPsec endpoint through the external interface. D. Increase the OSPF metric of the external interface. Correct Answer: C /Reference: : Reference: QUESTION 69 You are asked to troubleshoot ongoing problems with IPsec tunnels and security policy processing. Your network consists of SRX240s and SRX5600s. Regarding this scenario, which two statements are true? (Choose two.) A. You must enable data plane logging on the SRX240 devices to generate security policy logs. B. You must enable data plane logging on the SRX5600 devices to generate security policy logs. C. IKE logs are written to the kmd log file by default. D. IPsec logs are written to the kmd log file by default. Correct Answer: BD /Reference: : Reference:

38 20log%20file%20by%20default&source=web&cd=2&ved=0CC8QFjAB&url=http%3A%2F%2Fwww.juniper.net%2Fus%2Fen%2Flocal%2Fpdf%2Fapp-notes%2F en.pdf&ei=snhzuzntecaprqfnpicydq&usg=afqjcngb-rmrvcm6cqqblwdif54cactrrw QUESTION 70 You are troubleshooting an IPsec session and see the following IPsec security associations: ID Gateway Port Algorithm SPI Life:sec/kb Mon vsys < ESP:aes-256/sha1 d / unlim - 0 > ESP:aes-256/sha1 153ec235 26/ unlim - 0 < ESP:aes-256/sha1 f9a2db9a 3011/ unlim - 0 > ESP:aes-256/sha1 153ec / unlim - 0 What are two reasons for this behavior? (Choose two.) A. Both peers are trying to establish IKE Phase 1 but are not successful. B. Both peers have established SAs with one another, resulting in two IPsec tunnels. C. The lifetime of the Phase 2 negotiation is close to expiration. D. Both peers have establish-tunnels immediately configured. Correct Answer: CD /Reference: : Reference: show-security-ipsec-security-associations.html QUESTION 71 HostA ( ) is sending TCP traffic to HostB ( ). You need to capture the TCP packets locally on the SRX240. Which configuration would you use to enable this capture? A. [edit security flow] user@srx# show traceoptions { file dump; flag basic-datapath; B. [edit security] user@srx# show

39 application-tracking { enable; flow { traceoptions { file dump; flag basic-datapath; C. [edit firewall filter capture term one] user@srx# show from { source-address { ; destination-address { ; protocol tcp; then { port-mirror; accept; D. [edit firewall filter capture term one] user@srx# show from { source-address { ; destination-address { ; protocol tcp; then { sample; accept; Correct Answer: D

40 /Reference: : Reference: QUESTION 72 You are troubleshooting an SRX240 acting as a NAT translator for transit traffic. Traffic is dropping at the SRX240 in your network. Which three tools would you use to troubleshoot the issue? (Choose three.) A. security flow traceoptions B. monitor interface traffic C. show security flow session D. monitor traffic interface E. debug flow basic Correct Answer: ABC /Reference: : Reference: QUESTION 73 Somebody has inadvertently configured several security policies with application firewall rule sets on an SRX device. These security policies are now dropping traffic that should be allowed. You must find and remove the application firewall rule sets that are associated with these policies. Which two commands allow you to view these associations? (Choose two.) A. show security policies B. show services application-identification application-system-cache C. show security application-firewall rule-set all D. show security policies application-firewall Correct Answer: AD

41 /Reference: : Reference: html QUESTION 74 Click the Exhibit button. You are using AppDoS to protect your network against a bot attack, but noticed an approved application has falsely triggered the configured IDP action of drop.

42 You adjusted your AppDoS configuration as shown in the exhibit. However, the approved traffic is still dropped. What are two reasons for this behavior? (Choose two.) A. The approved traffic results in 50,000 HTTP GET requests per minute. B. The approved traffic results in 25 HTTP GET requests within 10 seconds from a single host. C. The active IDP policy has not been defined in the security configuration. D. The IDP action is still in effect due to the timeout configuration. Correct Answer: AD /Reference: : Reference: QUESTION 75 Click the Exhibit button. Referring to the exhibit, AppTrack is only logging the session closure messages for sessions that last 1 to 3 minutes. What is causing this behavior?

43 A. AppTrack is not properly configured under the [edit security application-tracking] hierarchy. B. AppTrack only generates session update messages. C. AppTrack only generates session closure messages. D. AppTrack generates other messages only when the update interval is surpassed. Correct Answer: D /Reference: : Reference : QUESTION 76 Click the Exhibit button.

44 You have been asked to block YouTube video streaming for internal users. You have implemented the configuration shown in the exhibit, however users are still able to stream videos. What must be modified to correct the problem? A. The application firewall rule needs to be applied to an IDP policy. B. You must create a custom application to block YouTube streaming. C. The application firewall rule needs to be applied to the security policy. D. You must apply the dynamic application to the security policy Correct Answer: C

45 /Reference: : Reference: QUESTION 77 Click the Exhibit button. Referring to the exhibit, the session close log was generated by the application firewall rule set HTTP. Why did the session close? A. The application identification engine was unable to determine which application was in use, which caused the SRX device to close the session. B. The host with the IP address of received a TCP segment with the FIN flag set from the host with the IP address of C. The SRX device was unable to determine the user and role in the allotted time, which caused the session to close. D. The host with the IP address of sent a TCP segment with the FIN flag set to the host with the IP address of Correct Answer: D /Reference: : Reference: download/rt.pdf QUESTION 78 Click the Exhibit button.

46 Referring to the exhibit, the application firewall configuration fails to commit. What must you do to allow the configuration to commit? A. Each firewall rule set must only have one rule. B. A firewall rule set cannot mix dynamic applications and dynamic application groups. C. The action in the rules must be different than the action in the default rule. D. The action in the default rule must be set to deny. Correct Answer: C

47 /Reference: : Reference: html QUESTION 79 Click the Exhibit button.

48

49 In the output, how many user-configured routing instances have active routes? A. 1 B. 2 C. 3 D. 4 Correct Answer: B /Reference: : Reference: show-route-summary.html#jd0e185 QUESTION 80 Click the Exhibit button. TCP traffic sourced from Host A destined for Host B is being redirected using filter-based forwarding to use the Red network. However, return traffic from Host B destined for Host A is using the Blue network and getting dropped by the SRX device. Which action will resolve the issue?

50 A. Enable asyncronous-routing under the Blue zone. B. Configure ge-0/0/1 to belong to the Red zone. C. Disable RPF checking. D. Disable TCP sequence checking. Correct Answer: B /Reference: : Reference: QUESTION 81 Click the Exhibit button.

51 Referring to the exhibit, which feature allows the hosts in the Trust and DMZ zones to route to either ISP, based on source address? A. source NAT B. static NAT C. filter-based forwarding D. source-based routing Correct Answer: C /Reference: : Reference: QUESTION 82 Click the Exhibit button.

52 In the network shown in the exhibit, you want to forward traffic from the employees to ISP1 and ISP2. You want to forward all Web traffic to ISP1 and all other traffic to ISP2. While troubleshooting, you change your filter to forward all traffic to ISP1. However, no traffic is sent to ISP1. What is causing this behavior? A. The filter is applied to the wrong interface. B. The filter should use the next-hop action instead of the routing-instance action. C. The filter term does not have a required from statement. D. The filter term does not have the accept statement.

53 Correct Answer: A /Reference: : Reference: QUESTION 83 Click the Exhibit button. In the network shown in the exhibit, you want to forward traffic from the employees to ISP1 and ISP2.

54 You want to forward all Web traffic to ISP1 and all other traffic to ISP2. However, your configuration is not producing the expected results. Part of the configuration is shown in the exhibit. When you run the show route table isp1 command, you do not see the default route listed. What is causing this behavior? A. The autonomous system number is incorrect, which is preventing the device from receiving a default route from ISP1. B. The device is not able to resolve the next-hop. C. The isp1 routing instance is configured with an incorrect instance-type. D. The show route table isp1 command does not display the default route unless you add the exact /0 option. Correct Answer: B /Reference: : Reference: QUESTION 84 Click the Exhibit button.

55

56

57

58

59 -- Exhibit -- Referring to the exhibit, you notice that filter-based forwarding is not working. What is the reason for this behavior? A. The RIB group is configured incorrectly. B. The routing policy is configured incorrectly. C. The routing instance is configured incorrectly. D. The default static routes are configured incorrectly. Correct Answer: C /Reference: : By default, we have a static route in a routing instance sending the default route to We want to hijack traffic matching a particular filter and send the traffic to a different nexthop, Weshould create your rib group by importing FIRST the table belonging to your

60 virtual router and SECOND the table for the forwarding instance that has the next-hop specified. Reference: QUESTION 85 Click the Exhibit button. Host A cannot resolve the Web page when using its configured DNS server. As shown in the exhibit, Host A's configured DNS server and the Web server hosting the Web page are in the same subnet. You have verified bidirectional reach ability between Host A and the Web server hosting the Web page. What would cause this behavior on the SRX device in Company B's network? A. DNS replication is enabled. B. DNS doctoring is enabled. C. DNS replication is disabled. D. DNS doctoring is disabled. Correct Answer: D

61 /Reference: : Reference: QUESTION 86 Click the Exhibit button. You are asked to implement NAT to translate addresses between the IPv4 and IPv6 networks shown in the exhibit. What are three configuration requirements? (Choose three.) A. Disable SYN checking. B. Enable IPv6 flow mode. C. Configure proxy ARP. D. Configure stateless filtering. E. Configure proxy NDP. Correct Answer: BCE /Reference: : Reference: QUESTION 87 Click the Exhibit button.

62 Referring to the topology shown in the exhibit, which two configuration tasks will allow Host A to telnet to the public IP address associated with Server B? (Choose two.) A. Configure transparent mode to bypass the NAT processing of Server B's public IP address. B. Configure a stateless filter redirecting local traffic destined to Server B's public IP address. C. Configure a destination NAT rule that matches local traffic destined to Server B's public IP address. D. Configure a source NAT rule that matches local traffic destined to Server B's public IP address. Correct Answer: CD /Reference: : In this scenario we have a host be accessible on the Internet by one address, but have it be

63 translated to another address when it initiates connections out to the Internet.So we need to combine Source and destination NAT. Reference: QUESTION 88 Click the Exhibit button. You must configure two SRX devices to enable bidirectional communications between the two networks shown in the exhibit. You have been allocated the /24 and /24 networks to use for this purpose. Which configuration will accomplish this task? A. Use an IPsec VPN to connect the two networks and hide the addresses from the Internet. B. Using destination NAT, translate traffic destined to /24 to Site1's addresses, and translate traffic destined to /24 to Site2's addresses. C. Using source NAT, translate traffic from Site1's addresses to /24, and translate traffic from Site2's addresses to /24. D. Using static NAT, translate traffic destined to /24 to Site1's addresses, and translate traffic destined to /24 to Site2's addresses. Correct Answer: D /Reference: : To examine bidirectional communication you need multiple packet filters, one for each direction. Reference : troubleshooting_security_policy_and_traf QUESTION 89 Click the Exhibit button.