Troubleshooting and Maintaining Cisco IP Networks (TSHOOT)

Transcription

1 Troubleshooting and Maintaining Cisco IP Networks (TSHOOT) Cisco Dumps Available Here at: /cisco-exam/ dumps.html Enrolling now you will get access to 121 questions in a unique set of dumps Question 1 Exhibit: A network administrator is troubleshooting an EIGRP connection between RouterA, IP address , and RouterB, IP address Given the debut output on RouterA, which two statements are true? (Choose two.) A. RouterA received a hello packet with mismatched autonomous system numbers. B. RouterA received a hello packet with mismatched hello tiers. C. RouterA received a hello packet with mismatched authentication parameters. D. RouterA received a hello packet with mismatched metric-calculaton mechanisms. E. RouterA will form an adjacency with RouterB. F. RouterA will not form an adjacency with RouterB. Answer: D, F

2 Question 2 When troubleshooting an EIGRP connectivity problem, you note that two connected EIGRP routers are not becoming EIGRP neighbours. A pin between the two routers was successful. What is the next thing that should be checked? A. Verify that the EIGRP hello and hold tiers match exactly. B. Verify that EIGRP broadcast packets are not being dropped between the two routers with the show IP EIGRP peer command. C. Verify that EIGRP broadcast packets are not being dropped between the two routers with the show IP EIGRP traffic command. D. Verify that EIGRP is enabled for the appropriate networks on the local and neinhborinn router. Answer: D Question 3 Refer to the exhibit.

3 How would you confirm on R1 that load balancing is actually occurring on the default-network ( )? A. Use pin and the show IP route command to confirm the tiers for each default network resets to 0. B. Load balancing does not occur over default networks; the second route will only be used for failover. C. Use an extended pin along with repeated show IP route commands to confirm the gateway of last resort address tonnes back and forth. D. Use the trace route command to an address that is not explicitly in the round table. Answer: D Question 4 Which IP sec mode will encrypt a GRE tunnel to provide multprotocol support and reduced overhead? A. 3DES B. multipoint GRE

4 C. tunnel D. transport Answer: D Question 5 Which three features are benefits of using GRE tunnels in conjunction with IP sec for building site-to-site VPNs? (Choose three.) A. allows dynamic round over the tunnel B. supports mult-protocol (non-ip) traffic over the tunnel C. reduces IP sec headers overhead since tunnel mode is used D. simplifies the ACL used in the crypto map E. uses Virtual Tunnel Interface (VTI) to simplify the IP sec VPN confnuraton Answer: A, B, D Question 6 Which statement is true about an IP sec/gre tunnel? A. The GRE tunnel source and destination addresses are specified within the IP sec transform set. B. An IP sec/gre tunnel must use IP sec tunnel mode. C. GRE encapsulation occurs before the IP sec encryption process. D. Crypto map ACL is not needed to match which traffic will be protected. Answer: C Question 7

5 You are troubleshooting an issue with a GRE tunnel between R1 and R2 and find that routing is OK on all intermediary routers. The tunnel is up on R1, but down on R2. Which two possible issues can prevent the tunnel from coming up? (Choose Two) A. The tunnel does not come up unless traffic is sent through it. B. The tunnel source interface is down on R2. C. No specific route interface is down on R2. D. R2 does not know how to reach the tunnel destination. E. The tunnel keeps alive timer doesn't match on R1 and R2. Answer: B, D Explanation: Four Different Tunnel States There are four possible states in which a GRE tunnel interface can be: 1. Up/up - This implies that the tunnel is fully functional and passes traffic. It is both administratively up and it's protocol is up as well. 2. Administratively down/down - This implies that the interface has been administratively shut down. 3. Up/down - This implies that, even though the tunnel is administratively up, something causes the line protocol on the interface to be down. 4. Reset/down - This is usually a transient state when the tunnel is reset by software. This usually happens when the tunnel is misconfigured with a Next Hop Server (NHS) that is its own IP address. When a tunnel interface is first created and no other confnuraton is applied to it, the interface. Question 8 Refer to the Exhibit:

6 Which output is expected in the blank line for the OSPF adjacency process? A. DOWN B. EXSTART C. EXCHANGE D. LOADING Answer: B Explanation: You can check the output of "debut IP SPF adj" here:

7 Question 9 Refer to the exhibit. Which two statements are correct? (Choose Two) A. The source device has named resolution configured. B. The source device is using two routes for the destination, learned from different protocols. C. A device on the path is introducing considerable delay. D. The source device is loading balancing traffic. Answer: A, D Explanation: Router traces domain name (Cisco.come) and it nets ICMP answers, so name resolution has happened.

8 Per hop output shows 2 lines, hence 2 active paths exist. Question 10 Refer to exhibit: After a junior technician confuses a new branch once GRE tunnel, which step is mission from the confnuraton to pass traffic through tunnel on Router 1? A. state route to /24 via B. state route to /24 via C. state route to /24 via D. state route to /24 via Answer: D

9 Question 11 Refer to exhibit. The tunnel between R2 and R5 is not coming up. R2, R4 and R5 do not have any round information sources other Then OSPF and no route filtering is implemented anywhere in the network. Which two actions FX the issue? (Choose Two) A. Redistribute connected routes to OSPF on R5. B. Change the tunnel destination on R2 to C. Adverse interface Lo0 to OSPF on R5. D. Confuse a state route on R5 to via E. Fix the OSPF adjacency issue between R2 and r5. Answer: A, C Explanation: In order for the tunnel to be established between R2-R5,the R2 should have a path for the /32 route in its own round table, and because the SPF is the only round protocol here, so R5 has to adverse the route

10 /32, and that is possible through these option: 1-redistribute connected route to SPF on R5 2-Advertse interface lo0 to OSPF on R5 For knowing more about the rules for the are channel to be established, check the link below: 00.html Question 12 R1 and R2 are directly connected using interface Ethernet0/0 on both sides. R1 and R2 were not becoming adjacent, so you have just configured R2 interface Ethernet0/0 as network type broadcast. Which two statements are true? A. Three OSPF routers are in the network segment connected to /24 B. R1 installs a route to /32 as O. C. R2 is not an OSPF ABR. D. R1 interface Ethernet0/0 is configured as OSPF type point-to-point. E. R1 installs a route to /32 as O IA. F. both routers R1 and R2 are neighbours and R2 IS BDR. Answer: E, F Explanation: -For the Answer 5 "R1 installs a route to /32 as O IA": That because the route /32 belong to another area (area1). -for the Answer 6 "both routers R1 and R2 are neighbours, and R2 IS BDR": Here clearly the question, say that R1 and R2 are not adjacent, but that not mean they are not neighbours, from the output of "show IP SPF neighbour" command we can see clearly that routers R1 and R2 are neighbours, and actually the R2 is BDR. There different between adjacent and neighbour, neighbours" and "adjacent". Two terminologies that doesn't mean the same thing, but can often be misused in a discussion. Neighbours in this case means "show up as neighbours while using the show IP SPF neighbours command". While "adjacent" means they are fully exchanging topology information.

11 For further information check the links below: hips://learninnnetwork.cisco.come/message/ Case Study: 2 Case Study Name: Troubleshooting VTP Tab ID: 1 Tab Name: Troubleshooting VTP Tab Text: Mix Question IN THIS CASE STUDY Would you like to see more? Don't miss our PDF file at: /cisco-pdf/ pdf.html