Business Data Networks and Security (BUS111) - Chapter 2 Quiz

55) During a connection opening, how many TCP segments will the side that initiates the connection send? A) 1 B) 2 C) 3 D) 4

2

102) Convert the binary number 100 to decimal. A) It is in decimal. B) 2 C) 4 D) 8

4

98) Which of the following is an integer? A) 4,307 B) 45.7 C) both A and B D) neither A nor B

4307

99) Which of the following is an integer? A) 5,280 B) 98.6 C) both A and B D) neither A nor B

5280

43) If two hosts are connected by five point-to-point networks, how physical links will there be when one host sends a packet to the other host? A) 1 B) 2 C) 5 D) 6

6

109) In TCP, port number fields are 16 bits long. How many possible port numbers are there? A) 16 B) 1,024 C) 16,384 D) 64,536

64,536

107) To represent 65 alternatives, your alternatives field would have to be at least ________ bits long. A) 5 B) 6 C) 7 D) 8

7

103) In decimal, the binary number 110 is ________. A) 15 B) 16 C) 17 D) none of the above

none of the above

24) Which standards layer governs e-mail? A) data link B) transport C) Internet D) none of the above

none of the above

25) Which standards layer governs the World Wide Web? A) data link B) transport C) Internet D) none of the Above

none of the above

26) Which standards layer governs peer-to-peer file sharing? A) data link B) transport C) Internet D) none of the Above

none of the above

39) At what layer will you find standards for EUI-48 addresses? A) application B) data link C) transport D) Internet

Data link

5) Network standards ________. A) decrease equipment prices B) prevent the growth of new features C) both A and B D) neither A nor B

Decrease equipment prices

2) IETF standards typically begin as simple protocols which ________. A) enhances development speed B) prevents longer-term development C) both A and B D) neither A nor B

Enhances development speed

69) "Header" means the same thing as "Header Field." True or False

False

89) Ethernet syntax is displayed 32 bits on a line. True or False

False

53) TCP control segments normally have ________. A) headers B) headers and data fields C) headers, data fields, and trailers D) none of the above

headers

77) SYN segments have ________. A) headers B) headers and data fields C) headers, data fields, and trailers D) data fields only

headers

17) Which of the following is an architecture? A) ISO B) IETF C) both A and B D) neither A nor B

neither A nor B

21) ISO standards are dominant in the OSI-TCP/IP layered standards architecture at the ________ layer. A) transport B) Internet C) both A and B D) neither A nor B

neither A nor B

29) Which layer(s) governs transmission through the Internet? A) data link B) physical C) both A and B D) neither A nor B

neither A nor B

48) HTTP is ________. A) connection-oriented. B) reliable C) both A and B D) neither A nor B

neither A nor B

87) Which of the following is a socket? A) 80 B) 21 C) both A and B D) neither A nor B

neither A nor B

40) If two hosts are connected by five networks, how many packets will there be when one host sends a packet to the other host? A) 1 B) 2 C) 5 D) 7

1

76) If someone says that a 1-bit flag is set, it is given the value ________. A) 0 B) 1 C) either 0 or 1 D) neither 0 or 1

1

100) Convert decimal 8 to binary. A) 100 B) 1000 C) 10000 D) 111

1000

106) How many alternatives can you represent with a 10-bit field? A) 256 B) 512 C) 1,024 D) none of the above

1024

92) To know what kind of message is in the Ethernet II data field, the receiver must look in the ________ field. A) source address B) destination address C) data D) EtherType

EtherType

22) Only applications from the IETF are likely to be able to run over TCP. True or False

False

31) The application layer processes application message fragmentation. True or False

False

47) HTTP is a reliable protocol. True or False

False

66) There is always a data field in a message. True or False

False

11) Which standards agency is especially important for transport processes? A) ISO and ITU-T B) IETF C) Both A and B are about equally important. D) Neither A nor B are important.

IETF

12) Which standards agency is especially important for Internet supervisory processes? A) ISO and ITU-T B) IETF C) Both A and B are about equally important. D) Neither A nor B are important.

IETF

18) Which of the following is a standards agency for the Internet? A) IETF B) ISO C) both A and B D) neither A nor B

IETF

6) Which standards agency creates Internet standards? A) OSI B) TCP/IP C) ITU-T D) IETF

IETF

16) A standards agency for OSI is ________. A) ITU-T B) IETF C) both A and B D) neither A nor B

ITU-T

7) Which of the following is a standards agency? A) OSI B) TCP/IP C) ITU-T D) All of the above

ITU-T

50) Host P transmits a SYN segment to Host Q. If host Q is willing to open the connection, it will transmit a(n) ________ segment. A) ACK B) SYN C) SYN/ACK D) none of the above

SYN/ACK

14) If you change a standard at one layer, you are not required to change standards at other layers. True or False

True

46) HTTP is a connectionless protocol. True or False

True

54) TCP is a connection-oriented protocol. True or False

True

64) A header is defined as everything that comes before the data field. True or False

True

67) A trailer is defined as everything that comes after the data field. True or False

True

71) The internet process checks for errors. True or False

True

78) A TCP segment can both send information and acknowledge an earlier message sent to its host. True or False

True

62) Which of the following is NOT one of the three general parts of messages? A) address field B) header C) data field D) trailer

address field

56) If a destination host receives a correct segment, it will transmit ________. A) an ACK segment B) an NAC segment C) an RSND segment D) nothing

an ACK segment

95) At what layer is encoding done? A) application B) transport C) Internet D) none of the above

application

81) On a server, well-known port numbers indicate ________. A) applications B) connections with client computers C) both A and B D) neither A nor B

applications

15) It is typically advantageous to change a standard if the layer ________ gets an upgraded standard. A) above it B) below it C) at least two layers away D) none of the above

below it

19) From which standards architectures do organizations typically take their standards? A) OSI B) TCP/IP C) both A and B D) neither A nor B

both A and B

28) Which layer(s) governs transmission through a single network? A) data link B) physical C) both A and B D) neither A nor B

both A and B

33) At what layer will you find standards for access points? A) physical B) data link C) both A and B D) neither A nor B

both A and B

60) In a four-step close, which side transmits a FIN segment? A) the side that initiates the close B) the side that does not initiate the close C) both A and B D) neither A nor B

both A and B

80) UDP ________. A) is unreliable B) has a checksum field C) both A and B D) neither A nor B

both A and B

45) In HTTP, which program may initiate communication? A) browser B) Webserver program C) both A and B D) neither A nor B

browser

90) In the Ethernet II frame, the IP packet is carried in the ________ field. A) source address B) destination address C) data D) EtherType

data

63) The ________ contains the content being delivered by a message. A) address field B) header C) data field D) trailer

data field

35) At what layer will you find standards for switches? A) application B) data link C) transport D) Internet

data link

36) At what layer will you find standards for frames? A) application B) data link C) transport D) Internet

data link

72) If the destination internet process detects an error, it ________. A) discards the packet B) sends back a segment notifying the sender C) both A and B D) neither A nor B

discards the packet

94) Converting application messages into bits is called ________. A) encapsulation B) encryption C) encoding D) exchange

encoding

83) The range of port 1024 to port 4999 is the usual range for ________ port numbers. A) well-known B) ephemeral C) both A and B D) neither A nor B

ephemeral

84) 2500 is in the range for ________ port numbers. A) well-known B) ephemeral C) both A and B D) neither A nor B

ephemeral

75) TCP has single-bit fields in its headers; these single-bit fields are called ________ fields. A) port B) flag C) ACK D) binary

flag

65) A message always has a ________. A) header B) data field C) both A and B D) neither A nor B

header

58) If a destination host receives an incorrect segment, it will ________. A) transmit an ACK segment B) transmit an NAC segment C) transmit an RSND segment D) none of the above

none of the above

59) A sending host will retransmit a TCP segment if it ________. A) receives an ACK segment B) receives an NAC segment C) receives an RPT segment D) none of the above

none of the above

61) After the side wishing to close a TCP connection sends a FIN segment, it will ________. A) not send any more segments B) only send ACK segments C) only send FIN segments D) none of the above

none of the above

96) How many bytes will it take to transmit "Brain Dead" without the quotation marks? A) 2 B) 3 C) 9 D) none of the above

none of the above

52) If a destination host receives a TCP segment with an error, it will transmit ________. A) an ACK segment B) an NAC segment C) an RSND segment D) nothing

nothing

23) Which layer governs wires? A) transport B) physical C) Internet D) none of the above

physical

112) Not making all protocols reliable ________. A) reduces cost B) is very dangerous C) is widely viewed as having been a mistake D) none of the above

reduces cost

49) TCP messages are called ________. A) frames B) packets C) segments D) fragments

segments

86) The destination socket is 60.171.18.22:161. The destination host is a(n) ________. A) client B) server C) well-known server D) ephemeral server

server

68) Which part of a message is included less frequently when compared to the other two parts? A) header B) data field C) trailer D) All of the above are equally included in messages.

trailer

20) IETF standards are dominant in the OSI-TCP/IP layered standards architecture at the ________ layer. A) data link B) transport C) both A and B D) neither A nor B

transport

30) Which layer processes application message fragmentation? A) application B) transport C) Internet D) all of the above

transport

105) If you add one bit to an alternatives field, you can have ________. A) one more alternative B) two more alternatives C) twice as many alternatives D) none of the above

twice as many alternative

73) IP is ________. A) reliable B) unreliable C) semi-reliable D) unreliable or reliable depending on the situation

unreliable

101) Convert a decimal number 15 to the binary number. A) It is a binary number. B) 1100 C) 1101 D) 1111

1111

110) ASCII has a 7-bit code. How many keyboard characters can it represent? A) 128 B) 256 C) 512 D) 1,024

128

108) The five senses can be represented with a ________-bit field. A) 2 B) 3 C) 4 D) 5

3

104) A 5-bit field can represent ________ alternatives or different combinations. A) 8 B) 16 C) 32 D) 64

32

70) In IP, the first bit in the second row is ________. A) 0 B) 31 C) 32 D) none of the above.

32

42) If two hosts are connected by five networks, how many routers will there be when one host sends a packet to the other host? A) 1 B) 2 C) 4 D) 5

4

79) The UDP header has ________ fields. A) 4 B) 8 C) 16 D) 32

4

41) If two hosts are connected by five networks, how many frames will there be when one host sends a packet to the other host? A) 1 B) 2 C) 5 D) 6

5

97) Transmitting "Oh, My!" without the quotes in ASCII requires ________ octets. A) 2 B) 4 C) 6 D) 7

7

8) Which standards agency is especially important for internet processes? A) ITU-T B) IETF C) Both A and B are about equally important. D) Neither A nor B are important.

IETF

74) Which of the following is a connectionless protocol? A) IP B) TCP C) both A and B D) neither A nor B

IP

10) Which standards agency is especially important for data link processes? A) ISO and ITU-T B) IETF C) Both A and B are about equally important. D) Neither A nor B are important.

ISO and ITU-T

9) Which standards agency is especially important for physical transmission processes? A) ITU-T B) IETF C) Both A and B are about equally important. D) Neither A nor B are important.

ITU-T

32) At what layer will you find standards for routers? A) transport B) Internet C) both A and B D) neither A nor B

Internet

34) At what layer will you find standards for packets? A) application B) data link C) transport D) Internet

Internet

37) At what layer will you find standards for IP addresses? A) application B) data link C) transport D) Internet

Internet

38) At what layer will you find standards for routes? A) application B) data link C) transport D) Internet

Internet

4) Network standards provide ________. A) B) synchronization C) interoperability D) entanglement

Interoperability

3) Standards mean the same thing as ________. A) semantics B) syntax C) rules D) protocols

Protocols

Internet standards are published as _______. A. RFCs B. IETFs C. TCP/IPs D. Internet Protocols

RFCs

111) Which of the following protocols is reliable? A) IP B) TCP C) both A and B D) neither A nor B

TCP

13) Standards layers provide services directly to ________. A) the next-higher layer B) the next-lower layer C) all layers D) only themselves

The next-higher layer

91) The IP standard calls for IP packets to be carried in the Ethernet II version of the Ethernet frame. True or False

True

44) In an HTTP, which one (browser or Webserver application program) transmits message first? A) browser B) Webserver application program C) They transmit simultaneously. D) It depends on the situation.

browser

88) "Octet" is the same as ________. A) "bit" B) "byte" C) either A or B, depending on the context D) neither A nor B

byte

85) The source socket is 60.171.18.22:2707. The source is a(n) ________. A) client B) server C) well-known server D) ephemeral server

client

82) For every conversation, a client randomly generates an ephemeral port number for ________. A) applications B) conversations C) the server D) none of the above

conversations

27) Which standards layer governs multiuser word processing programs? A) data link B) transport C) Internet D) none of the Above

none of the above

51) If a destination host does not receive a segment, it will ________. A) transmit an ACK segment B) transmit a NAC segment C) transmit an RSND segment D) none of the above

none of the above

57) If a destination host does not receive a segment, it will ________. A) transmit an ACK segment B) transmit an NAC segment C) transmit an RSND segment D) none of the above

none of the above

93) Ethernet has a Frame Check Sequence Field to check for errors. Ethernet is ________. A) reliable B) unreliable C) both A and B D) neither A nor B

unreliable