PinoyBIX Engineering Problem Solving and Reference

Below are the answers key for the Multiple Choice Questions (Quiz) in Security in the Internet: IPSec, SSL/TLS, PGP, VPN, and Firewalls from the book Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key:

1. IPSec

2. IPSec

3. ESP

4. PGP

5. both SSL and TLS

6. three

7. AH; ESP

8. transport

9. IKE

10. private

11. all of the above

12. none of the above

13. extranet

14. IPSec

15. all of the above

16. SADB

17. intranet

18. TLS; SSL

19. X509

20. cipher suite

21. VPN

22. PGP

23. transport

24. PGP

25. PGP

26. AH

27. PGP

28. both SSL and TLS

29. both SSL and TLS

30. transport

31. tunnel

32. PGP

33. transport

34. public

Complete List of Chapter Quiz in Data Communications and Networking

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Below are the answers key for the Multiple Choice Questions (Quiz) in Network Security from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key:

1. integrity

2. authentication

3. hash

4. session

5. weak-collision-resistance

6. KDC

7. all of the above

8. keyless

9. KDC

10. Entity authentication

11. conventional; digital

12. confidentiality

13. both authentication and nonrepudiation

14. confidentiality

15. MAC

16. message digest

17. all of the above

18. strong-collision-resistance

19. asymmetric-key

20. CA

21. confidentiality

22. challenge-response

23. entity authentication

24. one-wayness

25. CA

26. Nonrepudiation

27. three

28. Kerberos

29. fixed; one-time

Complete List of Chapter Quiz in Data Communications and Networking

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Below are the answers key for the Multiple Choice Questions (Quiz) in Cryptography from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key:

1. RSA

2. decryption

3. ciphertext

4. encryption

5. Diffie-Hellman

6. S-box

7. substitution

8. transposition

9. AES

10. plaintext

11. round

12. man-in-the-middle

13. cipher

14. private

15. three

16. symmetric-key

17. 48-bit

18. shift

19. block

20. P-box

21. Triple

22. Cryptography

23. 16

24. 4

25. symmetric-key

26. Substitution

27. shift

28. public

29. asymmetric-key

30. key

31. symmetric-key

Complete List of Chapter Quiz in Data Communications and Networking

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Below are the answers key for the Multiple Choice Questions (Quiz) in Multimedia from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key:

1. H.323

2. synchronization source

3. RTP

4. delay between packets

5. multicast

6. a UDP user datagram

7. translator

8. MPEG

9. multicasting

10. Sequence numbers

11. data compression

12. quantization

13. both timestamp and sequence number

14. jitter

15. Mixing

16. more than 10

17. Streaming live

18. Translation

19. JPEG

20. playback

21. predictive

22. Perceptual

23. Interactive

24. two

25. SIP

26. TCP

27. UDP

28. three

29. UDP

30. Streaming stored

31. RTCP

32. mixer

33. timestamp

34. DCT transformation

Complete List of Chapter Quiz in Data Communications and Networking

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Below are the answers key for the Multiple questions in Network Management: SNMP from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key:

1. client

2. Response

3. BER

4. MIB

5. SMI

6. simple

7. Trap

8. a and b

9. SMNP

10. server

11. server; client

12. tree

13. ASN.1

14. server; client

15. name; data type; encoding method

16. 161; 162

17. SMI; MIB

18. A manager; an agent

19. variable; variable contents

20. VarBindList

21. sequence; sequence of

22. error status

23. 1.3.6.1.2.1

24. 1.3.6.1.2.1.1

25. simple; structured

26. error index

27. format of the packets

28. client; server

29. lexicographic

30. ASN.1

31. SMI

32. 127

Complete List of Chapter Quiz in Data Communications and Networking

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Below are the answers key for the Multiple Choice Questions (Quiz) in WWW and HTTP from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key:

1. POST

2. protocol

3. dynamic

4. Java applets

5. server; server

6. static

7. URL

8. The WWW

9. HTTP version number

10. client-site

11. TCP

12. server-site

13. active

14. proxy

15. HEAD

16. a status line and a header

17. none of the above

18. an active

19. three

20. HTML

21. CGI

22. GET

23. persistent

24. a request line and a header

25. nonpersistent

26. path

27. host

28. persistent

29. none of the above

30. distributed

Complete List of Chapter Quiz in Data Communications and Networking

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Below are the answers key for the Multiple Choice Questions (Quiz) in Remote Logging, Electronic Mail, and File Transfer from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key:

1. two UAs, two pairs of MTAs, and a pair of MAAs

2. MTAs

3. DO

4. two UAs and two pairs of MTAs

5. envelope

6. data; control

7. file type

8. pull

9. none of the above

10. character

11. pseudoterminal driver

12. TCP

13. NVT ASCII

14. store a file

15. as many times as necessary

16. minimize delay

17. remote

18. MAA

19. a well-known; an ephemeral

20. 1

21. SMTP

22. MIME

23. all are

24. WILL

25. retrieve file and retrieve list

26. terminal network

27. local

28. header

29. none of the above

30. A UA

31. header; body

32. line

33. content-description

34. WONT

35. push

36. transmission modes

37. 0

38. TELNET server

39. two UAs

40. local part; domain name

41. IAC

42. two UAs and one pair of MTAs

43. exactly once

44. DONT

45. TELNET client

46. POP3; IMAP4

47. general-purpose

48. data structures

49. none of the above

50. 21; 20

51. default

52. command-driven; GUI-based

53. IMAP4; POP3

Complete List of Chapter Quiz in Data Communications and Networking

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Below are the answers key for the Multiple Choice Questions (Quiz) in Domain Name System from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key:

1. dots

2. secondary

3. none of the above

4. PQDN

5. zone

6. either UDP or TCP

7. chal

8. an empty string

9. zone

10. root server

11. inverse

12. label; 63

13. domain name space

14. generic

15. hierarchical

16. flat

17. inverse

18. country

19. domain

20. an inverted-tree

21. FQDN

22. three

23. iterative

24. edu

25. fifth

26. recursive

27. primary

Complete List of Chapter Quiz in Data Communications and Networking

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Below are the answers key for the Multiple Choice Questions (Quiz) in Congestion Control and Quality of Service from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key

1. Delay

2. peak data rate

3. committed information rate

4. open-loop

5. congestion control

6. Reliability

7. declines sharply

8. weighted fair

9. UBR

10. maximum burst size

11. closed-loop

12. Congestion

13. slow-start

14. access rate

15. congestion detection

16. Integrated Services

17. constant bit rate

18. Jitter

19. choke packet

20. ABR

21. variable bit rate

22. implicit signaling

23. increases sharply

24. backpressure

25. priority

26. FIFO

27. four

28. excess burst size

29. increases proportionally with the load

30. explicit signaling

31. at a minimum

32. queues

33. quality of service

34. BECN

35. FECN

36. effective bandwidth

37. congestion avoidance

38. VBR

39. descriptors

40. Differentiated Services

41. leaky

42. token

43. CBR

44. bursty

45. committed burst size

Complete List of Chapter Quiz in Data Communications and Networking

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Below are the answers key for the Multiple Choice Questions (Quiz) in Process-to-Process Delivery: UDP, TCP, and SCTP from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key:

1. control

2. sliding

3. transport

4. half-close

5. control chunk

6. association

7. no

8. a unique verification tag

9. a TSN

10. randomly generated number

11. application

12. multistream

13. connection-oriented

14. multiplexing

15. uses buffers

16. multiple IP addresses

17. port

18. before

19. reliable

20. no

21. 4

22. none of the above

23. stream; stream

24. SSNs

25. dynamic

26. process-to-process

27. socket address

28. 40

29. 16

30. none of the above

31. mandatory

32. one

33. an acknowledgment mechanism

34. no; are not

35. only data chunks

36. the process running on the sending computer

37. Flow

38. two

39. the receiver

40. first

41. several data chunks

42. User Datagram Protocol

43. none of the above

44. segment

45. both a and b

46. none of the above

47. an IP datagram

48. 32

49. byte

50. piggybacking

51. 199

52. an IP datagram

53. stream-oriented

54. user datagrams

55. IP

56. different chunks

57. segments; packets

58. process-to-process

59. control chunks

60. full-duplex

61. reliable, message-oriented

62. an SI

63. process-to-process communication

64. host-to-host; process-to-process

65. SYN flooding

66. connectionless, unreliable

67. no other chunk

68. 8

69. denial of service

70. a transport layer protocol takes over

71. next

72. one

73. cumulative

74. port addresses

75. client-server

76. finite state

77. demultiplexing

Complete List of Chapter Quiz in Data Communications and Networking

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Below are the answers key for the Multiple Choice Questions (Quiz) in Network Layer: Delivery, Forwarding and Routing from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key:

1. an indirect

2. physical and data link

3. Flooding

4. group-shared

5. none of the above

6. interdomain routing

7. source-based

8. multicasting

9. DVMRP

10. shortest

11. RPM

12. distance vector

13. graft

14. one copy

15. multicasting; multiple unicasting

16. data-driven

17. broadcast

18. OSPF

19. broadcast

20. autonomous systems

21. RIP

22. with manual entries

23. classless addressing

24. host-specific

25. distance vector

26. An autonomous system

27. only the core router is

28. stub

29. RPM; RPB

30. none of the above

31. link state

32. shortest

33. MBONE

34. Routing

35. open

36. link state

37. none of the above

38. dynamic

39. multicast

40. unicast

41. static

42. dense

43. its immediate neighbors

44. intradomain routing

45. shortest

46. path vector

47. BGP

48. point-to-point

49. next-hop

50. network-specific

51. RPM

52. switching fabrics

53. a direct

54. default

55. source-based

56. reduce

57. distance vector

58. source-based

59. which is updated automatically

60. unicasting

61. transient

62. link state

63. part of an AS

64. longest mask matching

65. sparse

66. network

67. prune

Complete List of Chapter Quiz in Data Communications and Networking

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Below are the answers key for the Multiple Choice Questions (Quiz) in Network Layer: Address Mapping, Error Reporting, and Multicasting from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key:

1. 2

2. a group management

3. the destination IP address in the datagram header

4. 0x000000000000

5. two membership reports are

6. special query message

7. An ICMP error message may be generated only for the first fragment.

8. IP

9. router; host or router

10. static mapping

11. one source; multiple destinations

12. broadcast

13. the IP address of the router found in the routing table

14. group address

15. proxy ARP

16. physical

17. the IP address of the router found in the routing table

18. the destination IP address in the datagram header

19. locally

20. multicast

21. does not define a particular

22. proxy ARP

23. none of the above

24. network

25. unicast

26. ARP

27. query and error reporting messages

28. an 8-byte

29. IP

30. none is true

31. tunneling

32. multicast group

33. logical

34. twice

Complete List of Chapter Quiz in Data Communications and Networking

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Below are the answers key for the Multiple Choice Questions (Quiz) in Network Layer: Internet Protocol from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key:

1. hop limit

2. there are 40 bytes in the header

3. there are 40 bytes in the header

4. flow label

5. 428

6. best-effort delivery

7. IP

8. 39,952

9. Offset number and total length

10. is 20 to 60 bytes long

11. priority

12. Fragment offset = 1000

13. Base header

14. MTU

15. base header; upper-layer data

16. The identification field is the same for all three datagrams.

17. the first byte of the datagram is byte 800

18. an unreliable and a connectionless

19. more

20. differentiated services

21. none of the above

22. is 20 to 60 bytes long

Complete List of Chapter Quiz in Data Communications and Networking

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Below are the answers key for the Multiple Choice Questions (Quiz) in Network Layer: Logical Addressing from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key:

1. A

2. 12.0.0.0

3. provider-based unicast

4. 256

5. 256

6. mask

7. 15

8. a unicast

9. 14

10. 7

11. none of the above

12. D

13. /8

14. 12.2.2.112

15. /16

16. B

17. site local

18. a multicast

19. must be a power of 2

20. 4

21. an anycast

22. 8

23. 16

24. /24

25. /24

26. 8: 4

27. /18

28. 32

29. 255.148.0.0

30. hexadecimal colon

31. 255.254.0.0

32. 32

33. none of the above

34. suffix

35. 2.4.6.0

36. 0

37. 12.2.2.64

38. 32

39. prefix

40. 128

41. 16,777,216

42. 12.2.2.7

43. 2.4.6.64

44. link local

45. 64

46. A

47. must be evenly divisible by the number of addresses

48. mapped

49. 65,536

50. 12.2.2.127

51. type

52. 255.255.255.0

53. 16

54. 8

Complete List of Chapter Quiz in Data Communications and Networking

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Below are the answers key for the Multiple Choice Questions (Quiz) of Set 1 MCQs of Virtual-Circuit Networks: Frame Relay and ATM from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key:

1. FRAD

2. 2 to 4

3. physical

4. mixed architecture

5. UNI

6. a combination of VPI and VCI

7. AAL2

8. PVC

9. AAL

10. 8

11. three

12. ATM

13. DLCIs

14. two

15. NNI

16. VOFR

17. cell

18. ATM

19. AAL3/4

20. either  SVCs or PVCs

21. 1

22. pure

23. 12

24. neither error nor flow

25. ATM

26. an SVC

27. legacy

28. all of the above

29. the physical and data link layers

30. AAL5

31. ATM

32. AAL1

33. Frame Relay

34. 53

Complete List of Chapter Quiz in Data Communications and Networking

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Below are the answers key for the Multiple Choice Questions (Quiz) of SONET/SDH from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key:

1. 125

2. either  multipoint or point-to-point

3. 9

4. SDH

5. line

6. regenerator

7. section

8. one-to-one

9. 18

10. from left to the right, top to bottom

11. byte

12. 90

13. path

14. line

15. four-layer

16. either bidirectional or unidirectional

17. SONET

18. three-layer

19. from most significant to the least significant

20. section

21. path

22. photonic

23. synchronous

24. 9

25. four

26. one-plus-one

27. ADMs

28. 270

29. STSs

30. OC-n

31. two-layer

32. 9

33. STMs

34. VTs

35. all of the above

36. 8000 

37. all of the above

38. one-to-many

39. 9

Complete List of Chapter Quiz in Data Communications and Networking

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Below are the answers key for the Multiple Choice Questions (Quiz) of Wireless WANs: Cellular Telephone and Satellite Networks from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key:

1. GPS

2. Iridium

3. IS-95

4. 3

5. IMT-MC

6. LEO

7. 1

8. GSM

9. equatorial

10. AMPS

11. D-AMPS

12. IMT-SC

13. soft

14. either 800-MHz or 1900-MHz

15. GPS

16. one

17. MEO

18. Kepler's

19. 2000

20. D-AMPS

21. none of the above

22. IMT-DS

23. hard

24. FDMA

25. GPS

26. Teledesic

27. third-generation

28. 7

29. 800-MHz

30. polar

31. footprint

32. AMPS

33. LEO

34. both FDMA and TDMA

35. IMT-TC

36. 5000 and 15,000

37. all of the above

38. both FDMA and TDMA

Complete List of Chapter Quiz in Data Communications and Networking

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Below are the answers key for the Multiple Choice Questions (Quiz) of Connecting LANs, Backbone Networks, and Virtual LANs from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key:

1. broadcast

2. bridge

3. repeater

4. three-layer

5. A passive hub

6. router

7. physical

8. repeater

9. manual

10. backbone

11. either  star or bus

12. spanning tree

13. An active hub

14. star

15. loop

16. transparent

17. software

18. gateway

19. transparent bridge

20. bridge

21. A passive hub

22. provide an extra measure of security and reduce network traffic

23. point-to-point

24. repeater

25. bridge

26. bridge

27. A passive hub

28. automatic

29. three

30. bridge

31. spanning tree

32. gateway

33. all of the above

34. repeater

35. semiautomatic

36. router

37. router

38. cut-through

Complete List of Chapter Quiz in Data Communications and Networking

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Below are the answers key for the Multiple Choice Questions (Quiz) of Wireless LANs from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key:

1. 1

2. 10

3. 00

4. polling

5. an ad hoc architecture

6. four

7. radio

8. no-transition

9. L2CAP

10. 11

11. piconet

12. one; seven

13. none of the above

14. an infrastructure network

15. NAV

16. none of the above

17. FHSS

18. ACL

19. baseband

20. IEEE 802.11

21. ESS-transition

22. OFDM

23. CSMA/CA

24. can; cannot

25. APs

26. wireless LAN

27. either  FHSS or DSSS

28. OFDM

29. BSS

30. BSS; ESS

31. SCO

32. 5.5

33. 22

34. BSS-transition

35. TDD-TDMA

36. none of the above

37. PCF

38. 01

39. piconets: scatternet

40. DSSS

41. 6

Complete List of Chapter Quiz in Data Communications and Networking

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Below are the answers key for the Multiple Choice Questions (Quiz) of Wired LANs: Ethernet from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

Answer Key:

1. 1000Base-T

2. 8B/10B; NRZ

3. 100Base-FX

4. 1000Base-SX

5. 5A:11:55:18:AA:0F

6. broadcast

7. multicast

8. 48-bit

9. 1000

10. CRC

11. 8B6T

12. 10GBase-L

13. LLC

14. 4B/5B; MLT-3

15. MAC

16. Ethernet

17. multicast

18. both (a) and (b)

19. 100Base-T4

20. Manchester

21. Fast Ethernet

22. unicast

23. 10GBase-S

24. 7C:56:21:1A:DE:F4

25. 10Base2

26. preamble

27. 100

28. LLC

29. 100Base-TX

30. 10Base-F

31. unicast

32. 10GBase-E

33. 4D-PAM5

34. 1518

35. none of the above

36. 1000Base-LX

37. data link

38. 4B/5B; NRZ-I

39. 43:7B:6C:DE:10:00

40. 10Base5

41. 1-persistent

42. 10Base-T

Complete List of Chapter Quiz in Data Communications and Networking

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