1. The MAC controller works at the LLC sublayer by initiating the communications link between nodes, among other functions.

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1 CS216 Midterm Chapters 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12 True/False Indicate whether the statement is true or false. 1. The MAC controller works at the LLC sublayer by initiating the communications link between nodes, among other functions. 2. A bridge does not have the ability to look at frame addresses. 3. NTFS and share permissions in combination on the same folder are cumulative. 4. In Windows 7, you cannot set permissions on a shared printer, although you can do so on Windows Server The number one task when designing a network is to bid the lowest price possible for what you think are the customer s network needs. Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which of the following is NOT a common method of network communication? a. over copper wire c. over fiber-optic media b. over optical radio waves d. over microwaves 2. Which of the following is an example of a wireless PAN technology? a. Universal Serial Bus c. Bluetooth b. fiber-optic media d. satellite communication 3. Any device connected to a network is generically termed a(n) or station. a. array c. server b. node d. transmitter 4. A is a workstation that accesses software and data through the network on another computer. a. client c. server b. host d. mainframe 5. A network has two components: the physical layout of network cables, and devices and the logical path followed by the network packets or frames. a. protocol c. interface card b. operating system d. topology 6. The topology consists of running cable from one PC or file server to the next, like links in a chain. a. star c. ring b. mesh d. bus 7. A is a high-capacity communications medium that joins networks and central network devices across long distances. a. router c. hub b. backbone d. switch 8. Which layer can route data on different paths by creating virtual circuits? a. Physical c. Network b. Data Link d. Transport Page 1 of 7

2 Chapters 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, Information from one layer is transferred to the next by means of commands called. a. primitives c. primaries b. pointers d. messages 10. A(n) line is a dedicated telephone line that can be used for data communications to connect two different locations for continuous point-to-point communications. a. DSL c. T-carrier b. LATA d. IXC 11. Twisted-pair cabling uses which of the following to connect to network devices? a. BNC c. MT-RJ b. RJ-45 d. SC 12. Which of the following supports transmission rates of at least 1 Gbps and operates at 500 MHz frequency? a. Cat 5 UTP c. Cat 6a UTP b. thin coax d. Cat 7 UTP 13. routes are routes set up by the network administrator and specify fixed paths between two routers. a. Static c. Dynamic b. Source d. Destination 14. communications are continuous bursts of data controlled by a clock signal that starts each burst. a. Synchronous c. Asynchronous b. Buffered d. Timed 15. A(n) communicates using upstream and downstream frequencies (channels) that are already allocated by a cable service. a. terminal adapter c. intelligent adapter b. DCE d. cable modem 16. Which of the following technologies is used for short distance wireless communications such as within an office, and is harder to tap into without someone noticing? a. infrared c. ultraviolet b. microwave d. gamma ray 17. Which of the following is a device that sends out and picks up radio waves and is used by access points and wireless NICs? a. antenna c. receiver b. transmitter d. wireless modem 18. At which layer of the OSI model do both priority-based access and Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) function? a. Transport c. Network b. Physical d. Data Link 19. The i standard uses for creating random encryption keys from one master key. a. AES c. TKIP b. PSK d. RSN 20. An area with public wireless access is called a,which is simply a location that provides a public access point to users. a. hotspot c. nexus b. cell d. hub 21. Which type of network are you running if your computer is a member of a workgroup? a. peer-to-peer c. mainframe b. domain d. wireless Page 2 of 7

3 22. are used in UNIX/Linux for granting permissions to one user or a group of users to access specific resources. a. Collections c. Aggregates b. Associations d. Groups 23. The file permission category in UNIX/Linux systems typically entails all permissions and is designated by the letter u. a. Group membership c. Ownership b. All d. World 24. Which of the following Linux/UNIX commands makes an NFS volume available? a. chmod c. ifconfig b. mount d. usermod 25. Which of the following involves providing a host of scalable Web-based applications and services over the Internet or a private network? a. wireless computing c. land-based computing b. personal area computing d. cloud computing 26. In which server model can the physical security used for servers vary widely from server to server and department to department? a. hierarchical c. centralized b. decentralized d. structured 27. By default, the Linux du command expresses file usage by which of the following? a. number of total bytes c. number of bytes per second b. number of 512-byte blocks d. number of disk directories 28. To monitor who is logged in to a UNIX/Linux systems, use the command. a. top c. free b. who d. df 29. Mac OS X is built upon what other operating system, allowing you to use commands such as du and finger from a terminal window? a. UNIX c. Windows ME b. Linux d. DOS 30. A contains a fixed amount of data formatted to be transmitted at high speeds. a. packet c. frame b. cell d. message 31. Which type of DSL service permits voice transmissions concurrently with data transmissions and has a downstream data rate that is faster than the upstream rate? a. HDSL c. SDSL b. SHDSL d. ADSL 32. In the mode service of an ISDN, several circuits can be used during a communications session. a. circuit c. relay b. switching d. packet 33. Which of the following is a fiber-optic technology that can connect to interfaces for ATM, ISDN, routers, and other equipment and provides very high-speed communications? a. ADSL c. SONET b. ISDN d. X Which topology does SONET use? a. star c. mesh b. ring d. bus Page 3 of 7

4 35. Which of the following involves providing extra cable and equipment to ensure that computers and computer systems continue to function even when one or more network or computer element fails? a. Connectivity c. Scalability b. Redundancy d. Accommodation 36. When troubleshooting a computer s connection to the network, which of the following is true? a. all computers on the network should have c. a malfunctioning NIC is indicated by a the same IP address blinking LED b. all computers on the network should have d. all computers on the network should have different netmasks the same network ID 37. permit you to establish separate collision domains while ensuring faster flow of network traffic. a. Bridges c. Router b. Hubs d. Switches 38. Which is true about how switches employ flow control? a. they use jamming in full-duplex mode c. buffering amplifies the carrier signal b. they use buffering in half-duplex mode d. in full-duplex mode, a special frame is used to slow the rate of transmission 39. Which of the following is a program that appears useful, but instead does harm to a user s computer? a. virus c. Trojan horse b. buffer attack d. worm 40. It is best to secure your wireless network in order to prevent which of the following types of attacks that involve the attacker using a portable computer and an omnidirectional antenna? a. spamming c. port-scanning b. war drive d. sniffer attack 41. Which type of attack refers to the use of human interaction to gain access to a system or to do damage. a. social engineering c. inside attack b. psychological warfare d. spoofing 42. Which protocol secures IP at the Network layer by using secure communications and encryptions standards? a. SSL c. IPSec b. TLS d. RSA 43. The layer reads IP packet protocol address information and forwards each packet along the most expedient route for efficient network communications. a. Data Link c. Network b. Transport d. Physical 44. A border is a firewall that is configured with security policies to control the traffic that is permitted to cross a border in either direction. a. gateway c. switch b. proxy d. hub 45. Proxies functioning as -level gateways create a virtual tunnel between the proxy and an external computer, such as a Web server. a. network c. presentation b. presentation d. circuit 46. Which of the following should you use to test for bad splices and connector problems on fiber-optic cable? a. multimeter c. continuity tester b. OTDR d. ohm meter Page 4 of 7

5 47. A server administrator might regularly use with the -s option to monitor a server during busy and light traffic times to get an idea of the typical number of packets sent at those times. a. netstat c. traceroute b. ping d. dump 48. A is an indicator of a quantity of an object that can be measured in some unit, such as percent, bytes sent per second, or number of reset connections, depending on what is appropriate to the object. a. flag c. marker b. counter d. delimiter 49. A(n) backup backs up all files that are marked with an archive attribute (which shows the file needs to be backed up) and removes the archive attribute from each file after the backup. a. daily c. incremental b. periodic d. comprehensive 50. A(n) backup creates an image of all of the files on a disk volume in binary format. a. differential c. image b. incremental d. full Matching a. Internet Connection Sharing (ICS) f. communications media b. packet g. peer-to-peer network c. cable plant h. network interface card (NIC) d. metropolitan area network (MAN) i. star-bus hybrid technology e. Institute of Electrical and Electronic Engineers (IEEE) 1. links multiple LANs within a large city or metropolitan region. 2. physically links the nodes in a network. 3. attaches network nodes to the communication media. 4. requires an Internet connection to a computer running Windows discrete unit of data transmitted over a network. 6. pattern in which cabling is laid in the office, building, or campus. 7. plays a leading role in developing standards for network cabling and data transmissions. 8. combines the logical communications of a bus with the physical layout of a star. 9. allows file sharing without having to configure a server. Page 5 of 7

6 a. Transport f. frame b. peer protocols g. packet radio c. digital signal h. multistation access unit (MAU) d. Physical i. Network e. Service access point (SAP) 10. uses distinct voltages to generate binary ones or zeroes. 11. discrete unit of data containing control and address information corresponding to OSI Data Link layer. 12. the OSI model layer that is responsible for tracking ports or sockets 13. the OSI model layer where packets are forwarded 14. enable an OSI layer on a sending node to communicate with the same layer on the receiving node. 15. enables Network layer to determine which network process at the destination should accept a frame. 16. a specialized hub that ensures the packet is transmitted around the ring of computers. 17. form of wireless WAN communication that takes place at very high radio frequencies. 18. the OSI model layer which involves network connectors and media a. hop f. concentrator b. dynamic routing g. modem c. data terminal equipment (DTE) h. cut-through switching d. multistation access unit (MAU) i. translational bridge e. data service unit (DSU) 19. acts as a central hub on a token ring network. 20. device that can have multiple inputs and outputs active at the same time. 21. convert frames from one access method and media type to another 22. regeneration, amplification, and movement of a packet from one network onto another network. 23. uses routing protocols independent of a network administrator 24. accomplished by forwarding portions of frames before the entire frame is received. 25. converts a computer s outgoing digital signal to an analog signal for transmission over a telephone line. 26. a computer or device that prepares data to be transmitted over a telecommunication line. 27. converts the signal received by the CSU to one that can be placed on a network and be received by a computer. Page 6 of 7

7 Match each item with a statement below. a. Microsoft Management Console (MMC) f. virtual CPU b. thread g. server virtualization c. Active Directory h. du utility d. finger utility i. network virtualization e. virtual machine 28. running multiple server operating systems on a single server computer 29. directory service that houses information about all network resources. 30. a tool that you can customize by adding modules called snap-ins to manage different server functions. 31. dividing a single network or network device into multiple channels 32. each instance of an operating system running within virtualization software 33. simulates more CPUs than are actually in a computer enabling applications to have their own processor 34. block of code within a program. 35. summarizes disk usage in UNIX/Linux systems. 36. displays information about users in many UNIX/Linux systems. a. protocol analyzer f. instance b. System Monitor g. voltmeter c. dump utility h. trap d. SNMP i. nslookup utility e. Network Monitor 37. used to test the voltage on a network cable. 38. device that works in promiscuous mode to capture detailed information about the traffic moving across a network, including protocol and OSI layer information. 39. can be used to verify that a DNS is server is online and working. 40. can be used to monitor server components such as hard disks, memory, and the processor. 41. can detect many forms of network traffic and capture packets and frames for analysis 42. provides network management services through agents and management systems. 43. backs up all files, files that have changed by date, or files that have changed after the previous backup. 44. used by Performance Monitor when there are two or more types of elements to monitor such as two or more NICs or disk drives 45. a specific situation or event detected by SNMP that a network administrator may want to be warned about Page 7 of 7

Identify the features of network and client operating systems (Windows, NetWare, Linux, Mac OS)

Identify the features of network and client operating systems (Windows, NetWare, Linux, Mac OS) Course Outline Network+ Duration: 5 days (30 hours) Learning Objectives: Install and configure a network card Define the concepts of network layers Understand and implement the TCP/IP protocol Install