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Transcript
Chapter 7: Testbank Questions 1. A computer ________ is two or more computers connected using software and hardware so that they can communicate with each other. network switch broadband node Answer: network 2. A ________ is a device connected to a network such as a printer or a game console. packet node NOS NIC Answer: node 3. ________ is the actual speed of data transfer that is achieved and is always less than or equal to the data transfer rate. Benchmark Broadband Bandwidth Throughput Answer: Throughput 4. All of the following are tasks for network administration of a large organization EXCEPT ________. installing new computers and devices on the network updating and installing new software on the network monitoring network performance purchasing initial equipment for the network Answer: purchasing initial equipment for the network 1 5. Which of the following is NOT used to classify network architectures? Distance between nodes Communication medium Speed of the network Protocol used to exchange data Answer: Speed of the network 6. ________ is the maximum speed at which data can be transferred between two nodes. Throughput Bandwidth Broadband Through speed Answer: Bandwidth 7. A ________ is a network located in your residence that connects to all your digital devices. MAN WAN HAN LAN Answer: HAN 8. A network that spans a large physical distance is called a ________. MAN LAN PAN WAN Answer: WAN 2 9. A large network designed to provide access to a specific geographic area, such as a large city, is a ________. MAN PAN LAN WAN Answer: MAN 10. Which transmission medium transmits data the fastest? Twisted-pair cable Coaxial cable Wireless Fiber-optic cable Answer: Fiber-optic cable 11. Normal telephone cable is a type of ________. fiber-optic cable twisted-pair cable coaxial cable Ethernet cable Answer: twisted-pair cable 12. A client/server network is an example of ________ administration local wide area central remote Answer: central 3 13. A peer-to-peer (P2P) network is an example of ________ administration. local wide area central corporate Answer: local 14. The fastest version of wireless Ethernet is ________. 802.11n 802.11g 802.11ab 802.11ac Answer: 802.11ac 15. Which of the following is NOT a type of cable used in wired networks? Unshielded twisted-pair Coaxial Fiber-optic Unshielded coaxial Answer: Unshielded coaxial 16. Which of the following is NOT a type of UTP cable you would use in a wired Ethernet network? Cat 5E Cat 6 Cat 6A Cat 7B Answer: Cat 7B 4 17. The most popular transmission media option for wired home Ethernet networks is ________ cable. fiber-optic power-line unshielded twisted-pair (UTP) coaxial Answer: unshielded twisted-pair (UTP) 18. Wireless network devices use ________ to communicate with each other. fiber optics satellites radio waves DSL Answer: radio waves 19. For the nodes on a network to communicate with each other and access the network, each node needs a ________. DSL modem network adapter hub router Answer: network adapter 20. On a network, a(n) ________ helps prevent data packets from colliding with each other. router hub adapter switch Answer: switch 5 21. Sophisticated networks generally use which of the following hardware devices to ease the flow of data through the network? Routers and switches USB ports Firewalls Firmware Answer: Routers and switches 22. To transfer data packets between two or more networks, a ________ is used. router hub firewall switch Answer: router 23. Data are sent through a network in bundles called ________. packages pouches packets nodes Answer: packets 24. All of the following operating systems support P2P networking EXCEPT ________. Windows OS X Unix Linux Answer: Unix 6 25. Client/server networks are controlled by a central server that runs specialized software called a(n) ________. information management system (ISM) network operating system (NOS) digital subscriber line (DSL) service set identifier (SSID) Answer: network operating system (NOS) 26. Which of the following is NOT a wired broadband Internet connection option? Cable Dial-up DSL Fiber-optic Answer: Dial-up 27. A(n) ________ device facilitates file sharing and data backup. NAS WAN UTP NOS Answer: NAS 28. Using a network without the network owner's permission is known as ________. hijacking spamming piggybacking phishing Answer: piggybacking 7 29. All of the following are extra precautions you can take to secure a wireless network EXCEPT ________. change your network name (SSID) enable SSID broadcast turn on security protocols create a passphrase Answer: enable SSID broadcast 30. The unique number assigned to a network adapter by the manufacturer is referred to as the ________ address. MAC IP SSID network Answer: MAC 31. The term network __________ refers to the design of a network. Scoring Attribute: System Scorable Answer: a. architecture 32. A(n) __________ network is one where each computer can communicate directly with the others, rather than having a separate device exercise central control over the entire network. Scoring Attribute: System Scorable Answer: a. peer-to-peer and b.P2P 33. A network in which the nodes are located within a computer lab is called a(n) __________ . Scoring Attribute: System Scorable Answer: a. LAN and b.local area network 34. A network used to communicate among devices close to one person is called a(n) __________ . Scoring Attribute: System Scorable 8 Answer: a. PAN and b.personal area network 35. Many cities in the United States now provide a(n) __________ area network to allow Internet access to residents and tourists. Scoring Attribute: System Scorable Answer: a. metropolitan 36. cable is composed of four pairs of wires that are twisted around each other to reduce electrical interference. Scoring Attribute: System Scorable Answer: a. Unshielded twisted-pair and b.UTP 37. cable consists of a single copper wire surrounded by layers of plastic and is used to connect cable TV. Scoring Attribute: System Scorable Answer: a. Coaxial 38. The capability of current devices to use earlier standards is known as __________ . Scoring Attribute: System Scorable Answer: a. backward compatibility 39. are devices that transfer packets of data between two or more networks. Scoring Attribute: System Scorable Answer: a. Routers 40. A(n) __________ is a device that receives data packets and sends them to their intended nodes while preventing data collisions. Scoring Attribute: System Scorable Answer: a. switch 41. The server on a client/server network has specialized __________ software installed. 9 Scoring Attribute: System Scorable Answer: a. network operating system and b.NOS 42. is often referred to as "high-speed Internet." Scoring Attribute: System Scorable Answer: a. Broadband 43. DSL uses __________ cable. Scoring Attribute: System Scorable Answer: a. twisted-pair 44. A(n) __________ network uses radio waves as its transmission medium. Scoring Attribute: System Scorable Answer: a. wireless 45. Storing files on the __________ avoids having to save them on multiple devices. Scoring Attribute: System Scorable Answer: a. cloud 46. In terms of networking, NOS stands for __________ . Scoring Attribute: System Scorable Answer: a. network operating system 47. A(n) __________ network is set up near a wireless network and has a sound-alike name to lure unsuspecting web surfers. Scoring Attribute: System Scorable Answer: a. evil twin 10 48. Public places where you can wirelessly connect to the Internet are known as __________ . Scoring Attribute: System Scorable Answer: a. hotspots 49. Someone who breaks into computer systems to create mischief or steal information is a(n) __________ . Scoring Attribute: System Scorable Answer: a. hacker 50. When using a wireless connection, __________ translates data so that it is protected. Scoring Attribute: System Scorable Answer: a. encryption 51. SSID stands for __________ . Scoring Attribute: System Scorable Answer: a. service set identifier 52. All wireless networks have their own name, referred to as the __________ , which is used to identify the network. Scoring Attribute: System Scorable Answer: a. service set identifier and b.SSID 53. WEP stands for __________ . Scoring Attribute: System Scorable Answer: a. wired equivalent privacy 54. WPA stands for __________ . Scoring Attribute: System Scorable 11 Answer: a. Wi-Fi protected access and b.WiFi Protected access 55. refers to connecting to a wireless connection without the permission of the owner. Scoring Attribute: System Scorable Answer: a. Piggybacking 56. A printer connected to a wireless network is considered to be a node on that network. a true b false Answer: a. true 57. Sharing files is a benefit of a network. a true b false Answer: a. true 58. In a peer-to-peer network, one computer acts as the central computer. a true b false Answer: a. false 59. P2P networks are most commonly used in home networks. a true b false Answer: a. true 60. The Internet is a WAN. a true b false Answer: a. true 12 61. Current wired Ethernet networks in the United States are based on the IEEE 802.11ac standard. a true b false Answer: a. false 62. Ethernet networks are always connected using twisted-pair cable technology. a true b false Answer: a. false 63. Wireless network connections are slower than wired broadband connections. a true b false Answer: a. true 64. The most popular transmission media option for wired Ethernet networks is UTP cable. a true b false Answer: a. true 65. Most computers today come with Ethernet adapters already installed. a true b false Answer: a. true 66. A router acts like a traffic signal on a network. a true b false Answer: a. false 13 67. A P2P network needs network operating system software installed on every node. a true b false Answer: a. false 68. Wireless networks are more vulnerable to attack than wired networks. a true b false Answer: a. true 69. WEP is a stronger form of security than WPA. a true b false Answer: a. false 70. Limiting your signal range does not help increase wireless network security. a true b false Answer: a. false 71. Match each of the following network types to its definition: a. HAN services a residence b. MAN covers a city c. LAN confined to a small geographic location beyond the home d. PAN used to communicate among devices near an individual e. WAN a network that covers a great distance Scoring Attribute: System Scorable Answer: a. services a residence/b. covers a city/c. confined to a small geographic location beyond the home/d. used to communicate among devices near an individual/e. a network that covers a great distance 14 72. Match each of the following terms to its definition: a. fiber-optic made up of plastic or glass and transmits data at extremely fast speeds b. twisted pair made up of copper wires c. coaxial cable single copper wire surrounded by layers of plastic d. peer-to-peer each node can communicate directly with every other node on the network e. client/server central computer provides information and resources to other computers Scoring Attribute: System Scorable Answer: a. made up of plastic or glass and transmits data at extremely fast speeds/b. made up of copper wires/c. single copper wire surrounded by layers of plastic/d. each node can communicate directly with every other node on the network/e. central computer provides information and resources to other computers 73. Match each of the following terms to its definition: a. server provides information and resources to other computers on a network b. client computer on which users accomplish specific tasks and make specific requests c. network two or more computers connected together via software and hardware so they can communicate d. piggyback unauthorized connection to a wireless network e. node a computer, peripheral, or communication device on a network Scoring Attribute: System Scorable Answer: a. provides information and resources to other computers on a network/b. computer on which users accomplish specific tasks and make specific requests/c. two or more computers connected together via software and hardware so they can communicate/d. unauthorized connection to a wireless network/e. a computer, peripheral, or communication device on a network 15 74. Match each of the following terms to its definition: a. throughput the actual speed of data transfer that is achieved on a network b. packet the format in which data is sent over transmission media c. firmware instructions in read-only memory d. firewall hardware or software for protecting computers from hackers e. bandwidth maximum speed at which data can be transmitted Scoring Attribute: System Scorable Answer: a. the actual speed of data transfer that is achieved on a network/b. the format in which data is sent over transmission media/c. instructions in read-only memory/d. hardware or software for protecting computers from hackers/e. maximum speed at which data can be transmitted 75. Match each of the following terms to its definition: a. NOS software used to set up and manage a network b. broadband high-speed Internet connection c. router directs data traffic between networks d. switch handles data traffic between nodes on the same network e. NIC connects a node to a network Scoring Attribute: System Scorable Answer: a. software used to set up and manage a network/b. high-speed Internet connection/c. directs data traffic between networks/d. handles data traffic between nodes on the same network/e. connects a node to a network 16