CS 10051 Sample Questions Chapter 7 and 8
CS 10051 Sample Questions Chapter 7 and 8
True/False
Indicate whether the statement is true or false.
____ 1. A gateway provides routing between different wide area networks.
____ 2. A digital subscriber line (DSL) uses the same wires that carry regular telephone signals.
____ 3. The bus topology connects the network nodes in a circular fashion.
____ 4. A local Internet service provider (ISP) is called an Internet backbone.
____ 5. A mutually agreed upon set of rules, conventions, and agreements for the efficient and orderly exchange of information is called a protocol.
____ 6. The logical link control protocols determine how to arbitrate ownership of a shared line when multiple nodes want to send at the same time.
____ 7. The ARQ (automatic repeat request) algorithm is the basis for all data link control protocols in current use.
____ 8. Internet Protocol (IP) is a transport layer protocol.
____ 9. It is the job of the network layer protocols to create a “program-to-program” delivery service, in which messages are moved from a specific program at the source to a specific program at the destination.
____ 10. A bulletin board is a shared public file where anyone can post messages and everyone is free to browse and read the postings of others.
____ 11. A URL is the worldwide identification of a Web page located on a specific host computer on the Internet.
____ 12. During the early stages of network development, the only information exchanged was text such as email, database records, and technical papers.
____ 13. A digital subscriber line signal uses a different set of frequencies, and transmits analog rather than digital signals.
____ 14. High-speed communications are necessary to support video on demand.
____ 15. The Ethernet uses the ring topology.
____ 16. Bridges and switches are the most widely used technique for constructing LANs.
____ 17. A single ISP would very likely be able to connect a single campus to every other computer in the world.
____ 18. The Internet protocol stack has six total layers.
____ 19. The ARQ algorithm utilizes acknowledgement messages, which contain the sequence number of the correctly received packet.
____ 20. Resource sharing refers to the ability to share logical resources, such as software and information, but not physical sources, such as printers.
____ 21. Ethernet cables technically have no limit in length.
____ 22. A newsgroup is a specialized bulletin board that is associated with a special area of interest.
____ 23. The most popular application of networks in the past 30 years has been email.
____ 24. In a high-level programming language, the programmer must “manually” manage the movement of data items between and among memory locations.
____ 25. A program written in a high-level programming language is machine-specific.
____ 26. Programming statements in a high-level language are closer to standard English than statements in assembly language.
____ 27. Programming statements in a high-level language use standard mathematical notation.
____ 28. C++ comments are ignored by the compiler.
____ 29. C++ is not case-sensitive.
____ 30. C++ is a free-format language.
____ 31. A control statement assigns a value to a program variable.
____ 32. Sequential flow of control is the default mode of execution in a C++ program.
____ 33. In a sequential flow of control, the choice of which instructions to execute next depends on some condition.
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____ 34. ____ are the individual computers on a computer network.
|a. |Modems |c. |Circuits |
|b. |Nodes |d. |Ports |
____ 35. The term ____ refers to any communication link with a transmission rate exceeding 256,000 bps.
|a. |bandwidth |c. |broadband |
|b. |ISP |d. |dial-up |
____ 36. The ____ topology has a single central node that is connected to all other sites.
|a. |star |c. |helix |
|b. |ring |d. |bus |
____ 37. A(n) ____ is an information block with a fixed maximum size that is transmitted through the network as a single unit.
|a. |hypertext document |c. |switch |
|b. |URL |d. |packet |
____ 38. In the TCP/IP protocol hierarchy, the ____ layer protocols are the rules governing the exchange of binary digits across a physical communication channel.
|a. |network |c. |data link |
|b. |transport |d. |physical |
____ 39. The ____ layer protocols can be thought of as creating an error-free “message pipe,” in which messages go in one end and always come out the other end correct and in the proper order.
|a. |application |c. |data link |
|b. |transport |d. |physical |
____ 40. It is the job of the ____ layer protocols to deliver a message from the site where it was created to its ultimate destination.
|a. |physical |c. |application |
|b. |data link |d. |network |
____ 41. Assigning port numbers to programs and remembering which program goes with which port is a part of the ____ layer protocols.
|a. |physical |c. |network |
|b. |data link |d. |transport |
____ 42. The ____ layer protocols are the rules for implementing the end-user services provided by a network.
|a. |transport |c. |network |
|b. |application |d. |data link |
____ 43. The style of computing wherein some nodes provide services while the remaining nodes are users of those services is called ____ computing.
|a. |remote |c. |real-time |
|b. |mobile |d. |client-server |
____ 44. ____ is a software package that allows users to log on remotely to another computer and use it as though it were their own local machine.
|a. |Telnet |c. |FTP |
|b. |DNS |d. |TCP/IP |
____ 45. ____ is a way to move files around the network quickly and easily.
|a. |Telnet |c. |FTP |
|b. |DNS |d. |TCP/IP |
____ 46. A(n) ____ is a node that contains massive amounts of information that can be electronically searched for specific facts or documents.
|a. |groupware |c. |collaborative software |
|b. |distributed database |d. |information utility |
____ 47. A(n) ____ link is also known as a uniform resource locator.
|a. |hypertext |c. |transport |
|b. |http |d. |Ethernet |
____ 48. A(n) ____ occurs when two users transmit a line at exactly the same time.
|a. |collision |c. |protocol |
|b. |interruption |d. |transfer |
____ 49. The ____ problem is the need to identify the start and end of a message.
|a. |addressing |c. |networking |
|b. |framing |d. |transport |
____ 50. The ____ is a nonprofit organization that enforces network protocol standards.
|a. |ARAP |c. |Internet Society |
|b. |Protocol Agency |d. |IEEE |
____ 51. Most wide area networks use a store-and-forward, ____ technology to deliver messages.
|a. |collaborative |c. |packet-switched |
|b. |Ethernet |d. |data-link |
____ 52. A(n) ____ is a device that amplifies and forwards a signal.
|a. |repeater |c. |hub |
|b. |forwarder |d. |amplifier |
____ 53. Bluetooth is an example of a(n) ____.
|a. |wireless local access network |c. |wireless wide-area access network |
|b. |client-server |d. |wide area network |
____ 54. Which of the following is an alternative to DSL for broadband communications?
|a. |cable modem |c. |router |
|b. |Ethernet |d. |ISP |
____ 55. Asymmetric DSL lines usually provide ____ bandwidth coming into the computer than going out.
|a. |greater |c. |more reliable |
|b. |less |d. |less reliable |
____ 56. A(n) ____ restructures a binary signal into its analog representation.
|a. |modem |c. |encoder |
|b. |demodulator |d. |emulator |
____ 57. When you dial a telephone number, the ____ between caller and callee lasts for the duration of the call, and when you hang up it is terminated.
|a. |rapport |c. |resistance |
|b. |circuit |d. |transmitter |
____ 58. What device can connect individual LANS to a wide area network?
|a. |bridge |c. |modem |
|b. |hub |d. |router |
____ 59. High-level programming languages are often called _____ -generation languages.
|a. |first |c. |third |
|b. |second |d. |fourth |
____ 60. C++ comments are preceded with _____.
|a. |## |c. |// |
|b. |/ |d. |# |
____ 61. Names in a programming language are called _____.
|a. |identifiers |c. |arguments |
|b. |keywords |d. |methods |
____ 62. In C++, an identifier cannot begin with a(n) _____.
|a. |upper-case letter |c. |lower-case letter |
|b. |underscore |d. |digit |
____ 63. All data are represented internally in _____ form.
|a. |unary |c. |octal |
|b. |binary |d. |hexadecimal |
____ 64. A _____ must appear at the end of every executable C++ instruction.
|a. |comma |c. |semicolon |
|b. |period |d. |colon |
____ 65. A(n) _____ groups together a collection of memory locations, all storing data of the same type.
|a. |variable |c. |parameter list |
|b. |argument list |d. |array |
____ 66. A(n) _____ statement collects a specific value from the user for a variable within the program.
|a. |output |c. |assignment |
|b. |input |d. |control |
____ 67. A(n) _____ statement writes a message or the value of a program variable to the user’s screen or to a file on some permanent storage medium.
|a. |output |c. |assignment |
|b. |input |d. |control |
____ 68. _____ statements direct the flow of control.
|a. |Assignment |c. |Input |
|b. |Control |d. |Output |
____ 69. A literal string is enclosed in _____.
|a. |single quotes |c. |angle brackets |
|b. |double quotes |d. |parentheses |
____ 70. It is possible to combine statements into a group by putting them within _____.
|a. |quotation marks |c. |angle brackets |
|b. |curly braces |d. |parentheses |
____ 71. A loop whose loop body would be endlessly executed is called a(n) _____ loop.
|a. |massive |c. |infinite |
|b. |complex |d. |circular |
____ 72. _____ is the process of locating and correcting program errors.
|a. |Debugging |c. |Verification |
|b. |Testing |d. |Benchmarking |
CS 10051 Sample Questions Chapter 7 and 8
Answer Section
TRUE/FALSE
1. ANS: T PTS: 1 REF: 325
2. ANS: T PTS: 1 REF: 293
3. ANS: F PTS: 1 REF: 297
4. ANS: F PTS: 1 REF: 303
5. ANS: T PTS: 1 REF: 305
6. ANS: F PTS: 1 REF: 309
7. ANS: T PTS: 1 REF: 309
8. ANS: F PTS: 1 REF: 311
9. ANS: F PTS: 1 REF: 315
10. ANS: T PTS: 1 REF: 321
11. ANS: T PTS: 1 REF: 329
12. ANS: T PTS: 1 REF: 290
13. ANS: F PTS: 1 REF: 293
14. ANS: T PTS: 1 REF: 295
15. ANS: F PTS: 1 REF: 297
16. ANS: F PTS: 1 REF: 298
17. ANS: F PTS: 1 REF: 303
18. ANS: F PTS: 1 REF: 306
19. ANS: T PTS: 1 REF: 309
20. ANS: F PTS: 1 REF: 322
21. ANS: F PTS: 1 REF: 298
22. ANS: T PTS: 1 REF: 321
23. ANS: T PTS: 1 REF: 321
24. ANS: F PTS: 1 REF: 340
25. ANS: F PTS: 1 REF: 340
26. ANS: T PTS: 1 REF: 340
27. ANS: T PTS: 1 REF: 340
28. ANS: T PTS: 1 REF: 342
29. ANS: F PTS: 1 REF: 346
30. ANS: T PTS: 1 REF: 345
31. ANS: F PTS: 1 REF: 349
32. ANS: T PTS: 1 REF: 357
33. ANS: F PTS: 1 REF: 357
MULTIPLE CHOICE
34. ANS: B PTS: 1 REF: 291
35. ANS: C PTS: 1 REF: 293
36. ANS: A PTS: 1 REF: 297
37. ANS: D PTS: 1 REF: 300
38. ANS: D PTS: 1 REF: 306
39. ANS: C PTS: 1 REF: 310
40. ANS: D PTS: 1 REF: 311
41. ANS: D PTS: 1 REF: 315
42. ANS: B PTS: 1 REF: 317
43. ANS: D PTS: 1 REF: 322
44. ANS: A PTS: 1 REF: 326
45. ANS: C PTS: 1 REF: 326
46. ANS: D PTS: 1 REF: 323
47. ANS: A PTS: 1 REF: 329
48. ANS: A PTS: 1 REF: 308
49. ANS: B PTS: 1 REF: 307
50. ANS: C PTS: 1 REF: 305
51. ANS: C PTS: 1 REF: 300
52. ANS: A PTS: 1 REF: 298
53. ANS: A PTS: 1 REF: 296
54. ANS: A PTS: 1 REF: 294
55. ANS: A PTS: 1 REF: 294
56. ANS: A PTS: 1 REF: 292
57. ANS: B PTS: 1 REF: 292
58. ANS: D PTS: 1 REF: 302
59. ANS: C PTS: 1 REF: 340
60. ANS: C PTS: 1 REF: 342
61. ANS: A PTS: 1 REF: 346
62. ANS: D PTS: 1 REF: 346
63. ANS: B PTS: 1 REF: 346
64. ANS: C PTS: 1 REF: 345
65. ANS: D PTS: 1 REF: 348
66. ANS: B PTS: 1 REF: 349
67. ANS: A PTS: 1 REF: 349
68. ANS: B PTS: 1 REF: 349
69. ANS: B PTS: 1 REF: 352
70. ANS: B PTS: 1 REF: 361
71. ANS: C PTS: 1 REF: 367
72. ANS: A PTS: 1 REF: 414
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