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思科认证考试（ＣＣＮＡ）考试模拟题４０—５９及答案(1) |
| 来源:www.stu88.com 时间:2006-04-01 |
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Questions
40. [OxNx] Which of the following layers sends and receives binary information?
a) Application Layer 7
b) Presentation Layer 6
c) Session Layer 5
d) Transport Layer 4
e) Network Layer 3
f) Data Link Layer 2
g) Physical Layer 1
41. [OxNx] Which of the following layers provides end to end connections?
a) Application Layer 7
b) Presentation Layer 6
c) Session Layer 5
d) Transport Layer 4
e) Network Layer 3
f) Data Link Layer 2
g) Physical Layer 1
42. [OxNx] Which of the following layers would most likely provide connection oriented service.
a) Application Layer 7
b) Presentation Layer 6
c) Session Layer 5
d) Transport Layer 4
e) Network Layer 3
f) Data Link Layer 2
g) Physical Layer 1
43. [OxNx] Which of the following layers controls access to the media?
a) Application Layer 7
b) Presentation Layer 6
c) Session Layer 5
d) Transport Layer 4
e) Network Layer 3
f) Data Link Layer 2
g) Physical Layer 1
44. [OxNx] Which of the following layers defines network addressing and determines the best path?
a) Application Layer 7
b) Presentation Layer 6
c) Session Layer 5
d) Transport Layer 4
e) Network Layer 3
f) Data Link Layer 2
g) Physical Layer 1
45. [OxNx] Raw data is converted to segments at which layer?
a) Application Layer 7
b) Presentation Layer 6
c) Session Layer 5
d) Transport Layer 4
e) Network Layer 3
f) Data Link Layer 2
g) Physical Layer 1
46. [OxNx] Segments are converted to Datagrams at which layer?
a) Application Layer 7
b) Presentation Layer 6
c) Session Layer 5
d) Transport Layer 4
e) Network Layer 3
f) Data Link Layer 2
g) Physical Layer 1
47. [OxNx] Datagrams are converted to frames at which layer?
a) Application Layer 7
b) Presentation Layer 6
c) Session Layer 5
d) Transport Layer 4
e) Network Layer 3
f) Data Link Layer 2
g) Physical Layer 1
48. [OxNx] Frames are converted to Bits at which layer?
a) Application Layer 7
b) Presentation Layer 6
c) Session Layer 5
d) Transport Layer 4
e) Network Layer 3
f) Data Link Layer 2
g) Physical Layer 1
49. [OxNx] Which of the following could be a feature of a connection-oriented service?
a) Flow Control
b) "Three-Way" hand shake
c) Error checking
d) Windowing
e) All of the above
50. [OxNx] With a connection-oriented service a host will ACK (Acknowledge) with: (Answer all that apply)
a) The last (SEQ) sequence number received from the remote host
b) The next expected (SEQ) sequence number from the remote host
c) The last ACK number from the remote host
d) The current SEQ number from the remote host "plus" 1
e) None of the above
51. [OxNx] Simple Network Management Protocol uses what numeric value, in decimal, of the destination port field of the User Datagram Protocol (UDP) header?
a) 20
b) 21
c) 23
d) 69
e) 161
52. [OxNx] The first segment of the "Three-Way Handshake" will most likely carry an ACK of (Choose the best answer):
a) 1
b) The SEQ number of the remote host "plus" 1
c) 0
d) There is no ACK.
e) A randomly generated number
53. [OxNx] Which one of the following layers "best" describes the ability of the upper layers to gain independence over LAN media access?
a) Application Layer 7
b) Presentation Layer 6
c) Session Layer 5
d) Transport Layer 4
e) Network Layer 3
f) Data Link Layer 2
g) Physical Layer 1
h) MAC sublayer
i) LLC sublayer
54. [OxNx] The Media Access Control (MAC) address is made up of the following two parts.
a) Vendor Code
b) Network Address
c) Host Address
d) Serial Number
e) No such address
55. [OxNx] Which one of the following describes the process of a TCP/IP host learning a remote host MAC address? 共5页: 1 [2] [3] [4] [5] 
下一篇：CCIE试题-1
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