Chapter 7_

1. A(n) _____________ is not a common type of dedicated server. a. file server b. print server c. database server d. collision server e. web server 2. A(n) ____________ allows many users to share the same set of files on a common, shared disk drive. a. print server b. database server c. file server d. piconet server e. remote access server 3. Which of the following is not a basic LAN component? a. client b. PAD c. server d. network interface card e. network operating system 4. Which of the following is not an advantage of using Cat5 unshielded twisted pair for cabling LANs? a. cost (relative to fiber) b. thickness (relative to coax) c. weight (relative to coax) d. flexibility (relative to coax) e. security (relative to fiber) 5. Of the following, which is not true about fiber optic cable? a. It is thinner than unshielded twisted pair cable. b. It is lighter than unshielded twisted pair cable. c. It has a very low capacity. d. It is more expensive than CAT5 unshielded twisted pair cable. e. It is a type of guided media. 6. Which of the following is not a purpose for using hubs in a network? a. to act as a communications server b. to connect network cables c. to prevent attenuation d. to act as a junction box e. none of the above 7. Which of the following type of media is most commonly used in backbone networks because of its high capacity? a. fiber b. infrared frequencies c. coax cable d. unshielded twisted pair e. shielded twisted pair 8. Hubs: a. usually incorporate repeaters or amplifiers b. allow for simultaneous communication for all of the computers connected to them c. limit the distance of a network to a few meters in length d. are a difficult method to connect network cables e. operate at the application layer

9. _____________ is the software that controls the network. a. Network Operating System b. Client Operating System c. Embedded Operating System d. Network Control System e. Network Software System 10. The server version of the Network Operating System does not: a. provide the software that performs the functions associated with the physical layer. b. provide the software that performs the functions associated with the data link layer. c. provide the software that performs the functions associated with the application layer. d. provide the software that performs the functions associated with the network layer. e. usually provide the software that performs the functions associated with the computer’s own operating system. 11. _____________ provide information about resources on the network that are available to the users, such as shared printers, file servers and application software. a. Network Services b. Directory Services c. Client Services d. Computing Services e. Remote Access Services 12. A _________ is a group of centrally organized, related resources. a. workgroup b. domain c. server d. clie nt e. sharepoint 13. A hierarchical tree of active directory domains within one organization that is linked to other trees in the organization is called a/n ___________. a. ADS b. domain c. forest d. tree e. NDS 14. A __________ indicates what resources on each server are available on the network for use by other computers and what people are allowed what access to the network. a. user profile b. user access log c. network profile d. network operating system e. server allocation list 15. The cheapest time to install network cabling is: a. during the construction of the building. b. as soon as the building is completed. c. as soon as the building is occupied. d. about five years after the building is occupied so that the exact office locations for each network computer is known. e. any time that a network needs to be installed. 16. Ethernet LAN was developed by: a. IBM.

24. 100 Base-T: a. can run at either full- or half-duplex b. is one of the oldest forms of Ethernet c. is one of the slowest forms of Ethernet d. can only be used over coaxial cables e. has only one version, 100Base-SLCX 25. ________ is a hybrid version of Ethernet that uses either 10Base-T, 100Base-T, or 1000Base-T. a. Mullion Ethernet b. Base-T Ethernet c. 10/100/1000 Ethernet d. Token ring Ethernet e. FDDI Ethernet 26. Switch-based Ethernet: a. uses a hub to connect computers b. has a physical topology of a ring c. has a logical topology of a ring d. has a logical topology of a bus e. usually enables all attached circuits to send or receive packets simultaneously 27. A switch uses a _____________ that is very similar to a routing table used in a router. a. cable plan b. forwarding table c. network server d. reversing table e. switching mullion 28. Which of the following is not true about layer-2 switched Ethernet? a. A switch replaces the hub. b. The physical topology is the same as the physical topology of shared Ethernet: n a ring. c. The logical topology is a star. d. The switch uses a forwarding table to switch the frame to the correct circuit/computer. e. The switch chooses which frame to transmit first if it receives more than one frame destined for the same computer at the same time, and stores the other frame(s) temporarily. 29. Which of the following is not true about switched Ethernet? a. The switch has a physical bus topology. b. It uses a switch instead of a hub. c. Most switches support full duplex circuits. d. It essentially provides a point-to-point connection between computers. e. It has forwarding tables in which entries are learned over time. 30. Which of the following is a mode in which a switch reads in the first 64 bytes of the Ethernet frame and then begins forwarding out the frame on an outgoing port? a. fast learning switching b. routing switching c. fragment-free switching d. store switching e. cut switching 31. Each of the full duplex circuits connected to a switch is a separate _______________ circuit connecting the switch to a device on the network. a. multipoint b. point-to-point

c. shared d. ring e. star 32. Wired Ethernet is becoming a _______________ technology for small SOHO devices, meaning that manufacturers are no longer creating new products. . a. host b. legacy c. caching d. hub e. peak 33. Which of the following can provide fault tolerance for the storage space on a server? a. RAID b. SCSI c. IDE d. USB e. EIDE 34. Which of the following is not a potential bottleneck for LAN performance? a. number and speed of hard disks in the server b. amount of memory in the server c. speed of server’s CPU d. network interface card e. all of the answers are potential bottlenecks for LAN performance 35. If your LAN server is overloaded, which of the following should you not consider (to solve the server problem)? a. adding one or more additional servers b. upgrading the server’s CPU with a faster CPU c. increasing the amount of memory of the server d. increasing the number and speed of hard disks in the server e. replacing the cable with fiber optic cable 36. To increase the volume of simultaneous messages the LAN circuit can transmit from network clients to the server(s), you can: a. increase the CPU of the server b. upgrade to a bigger circuit c. increase the number of hard disks on the server d. increase the amount of disk capacity of the server e. increase the amount of memory of the server 37. Breaking a network into smaller parts is called network: a. fragmentation b. segmentation c. localization d. allocation e. mitigation 38. Which of the following is not an effective way to reduce LAN network demand: a. move files to client computers b. use disk caching on the client machines c. find an application that places a large demand on the network and run it a time when the network is lightly loaded d. add hidden nodes e. shift the users’ routines

d. Carrier Sensory Multiple Access without Collision Acknowledgment e. Carrier Sense Multiple Acknowledgment with Collision Avoidance 47. Another name for distributed coordination function (DCF) is __________. a. distributed carrier sense method b. physical carrier sense method c. physical carrier sense mode d. distributed carrier sense mode e. distributed coordination mode 48. When a computer transmits at the same time because it cannot sense that another computer on the WLAN is currently transmitting is referred to as the: a. out of range problem b. collision problem c. hidden node problem d. controlled access problem e. media access problem 49. The maximum data rate of a an 802.11ad WLAN is a. 24 Mbps b. 36 Mbps c. 11 Mbps d. 7Gbps e. 9 Mbps 50. Many organizations today are installing traditional wired Ethernet for desktop users and install Wi-Fi as ______________. a. overlay networks b. Bluetooth c. cellular networks d. mobile networks e. Ethernet networks 51. Which of the following is not determined by a site survey? a. feasibility of the desired coverage b. potential sources of interference c. the security of the WLAN d. estimated number of access points needed to provide coverage e. current locations of the wired network into which the WLAN will connect. 52. _____________ refers to practice of writing symbols in chalk on sidewalks and walls to indicate the presence of an unsecured WLAN. a. Wardriving b. Chalking c. Warchalking d. Marking e. Identifying 53. With _____________, the AP permits the owner to provide a list of valid addresses that can connect. a. EAP b. SSID c. WEP d. MAC address filtering e. SWEP

54. IEEE 802.11ac runs on two different frequency spectrums simultaneously. Which of the following are those two frequencies? a. 2.4GHz and 5GHz b. 24GHz and 5GHz c. 11GHz and 54GHz d. 8GHz and 11GHz e. 2.4GHz and 11GHz 55. WiGig is standardized as a. IEEE 802.11ad b. IEEE 802.11ac c. IEEE 802.11n d. IEEE 802.11g e. IEEE 802.11a 56. The ___________ is where the organization housing its primary servers. a. MDF b. guest house c. SOHO network d. data center e. load balancer 57. The ________ acts as a router at the front of the server farm. a. load router b. MDF c. Layer 2 switch d. front-end loader e. load balancer 58. ____ is the process of creating several logically separate servers on the same physical computer. a. Server virtualization b. Server optimization c. Server proliferation d. Server platforming e. Server redundancy 59. A ___ has a set of high-speed storage devices and servers that are networked together using a very high-speed network. a. wide area network b. local area network c. storage area network d. storage server e. local area storage WAN 60. The _____ contains the servers that are designed to serve data to customers and suppliers. a. e-commerce edge b. SAN c. LAN d. domain controller e. bottleneck 61. _______ are wired into a Wi-Fi Controller. They report what devices are attached to them and how busy they are to the controller, which balances traffic across the APs it manages. a. Managed APs b. Managed routers

1. An access point plays the same role in a wireless network as a router does in a wired Ethernet network. a. True b. False 2. STP cable is least costly type of cable used in today’s networks and is the most commonly used cable type in connecting computers to switches. a. True b. False 3. The term “domain controller” is a name commonly used to refer to a Microsoft directory services server. a. True b. False 4. The Network Interface Card (NIC) permits a computer to be physically connected to a network’s cable. a. True b. False 5. LANs that run on radio frequencies use a type of wired media. a. True b. False 6. Fiber optic cable is thicker and heavier than unshielded twisted pair. a. True b. False 7. Many network hubs and switches incorporate repeaters to regenerate signals so that attenuation of the signal does not occur. a. True b. False 8. The NOS software for the server computer provides the physical, data link, and network layer functions. a. True b. False 9. One of the most important functions of Network Operating System (NOS) is a directory service. a. True b. False 10. LDAP is an industry standard directory protocol. a. True b. False 11. A hardware device that is not included in a network profile cannot be accessed by another computer on the network. a. True b. False 12. Network profile refers to what resources on each server are available on the network for use by other computers and which devices or people are allowed access on the network. a. True b. False 13. Hub-based Ethernet is a star physical topology and a bus logical topology.

a. True b. False 14. Ethernet is a layer 3 protocol, which operates at the network layer. a. True b. False 15. The Ethernet standard was first developed by the IEEE. a. True b. False 16. Physical topology refers to the geometric layout of the network and describes how the computers are interconnected. a. True b. False 17. A collision on a bus circuit means that two computers on that circuit have transmitted at the same time. a. True b. False 18. The three latest versions of Ethernet run at speeds of 1Gbps, 10Gbps, and 50 Gbps. a. True b. False 19. 1000Base-LX is a version of 1000Base-T than runs on four pairs of CAT 5 cable. a. True b. False 20. A switch always broadcasts all the packets it receives to all the computers that are connected to the switch. a. True b. False 21. A forwarding table tells a switch which port it should send out a packet to get to the destination computer. a. True b. False 22. When a switch receives an Ethernet frame with a destination address that is not in its forwarding table, the switch will broadcast the frame out all of its other ports. a. True b. False 23. Cut-through switching has fewer errors than store and forward switching. a. True b. False 24. Store and forward switching may only be used when the incoming and outgoing data circuit have the same data rate. a. True b. False 25. A switch can send and receive on all circuits simultaneously. a. True b. False 26. Wireless LANs are never connected to a wired network. a. True b. False 27. An access point (AP) is required to connect a WLAN to a wired network. a. True b. False 28. An access point ensures that all computers within range of the access point can communicate with each other,

43. Category 1 cable is an old standard that is no longer in use. a. True b. False 44. Category 2 cable is standard voice-grade twisted-pair wires. a. True b. False 45. Category 2 and category 4 cable are old standards no longer in use today. a. True b. False 46. Category 7 cable has less range than the other types of cable. a. True b. False 47. The maximum range of a Category 6 cable is 100 meters. a. True b. False 48. Category 8 have a maximum range of 15 meters, which means they are typically used between networking devices that are near each other (e.g., in a rack or data center). a. True b. False 49. The maximum range of Category 7 cables is 15 meters. a. True b. False 50. Hub-based Ethernet is seldom used by companies today. a. True b. False 51. Almost all corporate installations of Ethernet today use hubs rather than switches. a. True b. False 52. Fiber optic cable is thinner than unshielded twisted pair cable. a. True b. False 53. Fiber optic cable is lighter than unshielded twisted pair cable. a. True b. False 54. Fiber optic cable has a very low capacity. a. True b. False 55. Fiber optic cable is more expensive than CAT5 unshielded twisted pair cable. a. True b. False 56. Fiber optic cable is the least expensive cable option. a. True b. False 57. Fiber optic cable is a type of guided media. a. True b. False 58. A hub in a network can be used to act as a communications server. a. True

b. False 59. A hub in a network can be used to connect network cables. a. True b. False 60. A hub in a network can be used to prevent attenuation. a. True b. False 61. A hub in a network can be used to act as a junction box. a. True b. False 62. With layer-2 switched Ethernet, a switch replaces the hub. a. True b. False 63. With layer-2 switched Ethernet, the physical topology is the same as the physical topology of shared Ethernet: a ring. a. True b. False 64. With layer-2 switched Ethernet, the logical topology is a star. a. True b. False 65. With layer-2 switched Ethernet, the switch uses a forwarding table to switch the frame to the correct circuit/computer. a. True b. False 66. With layer-2 switched Ethernet, the switch chooses which frame to transmit first if it receives more than one frame destined for the same computer at the same time, and stores the other frame(s) temporarily. a. True b. False 67. With switched Ethernet, the switch has a physical bus topology. a. True b. False 68. With switched Ethernet, it uses a switch instead of a hub. a. True b. False 69. With switched Ethernet, most switches support full duplex circuits. a. True b. False 70. With switched Ethernet, it essentially provides a point-to-point connection between computers. a. True b. False 71. With switched Ethernet, it has forwarding tables in which entries are learned over time. a. True b. False