Data Questions

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81.

In _______, the sequences are generated using orthogonal codes such the Walsh tables

A

FDMA

B

TDMA

C

CDMA

D

none of the above

Correct Answer: C

None.

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82.

What is the hexadecimal equivalent of the Ethernet address 01011010 00010001 01010101 00011000 10101010 00001111?

A

5A:88:AA:18:55:F0

B

5A:81:BA:81:AA:0F

C

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

D

5A:18:5A:18:55:0F

Correct Answer: C

None.

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83.

If an Ethernet destination address is 07:01:02:03:04:05, then this is a ______ address.

A

unicast

B

multicast

C

broadcast

D

any of the above

Correct Answer: B

None.

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84.

If an Ethernet destination address is 08:07:06:05:44:33, then this is a ______ address.

A

unicast

B

multicast

C

broadcast

D

any of the above

Correct Answer: A

None.

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85.

Which of the following could not be an Ethernet unicast destination?

A

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

B

44:AA:C1:23:45:32

C

46:56:21:1A:DE:F4

D

48:32:21:21:4D:34

Correct Answer: A

None.

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86.

Which of the following could not be an Ethernet multicast destination?

A

B7:7B:6C:DE:10:00

B

7B:AA:C1:23:45:32

C

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

D

83:32:21:21:4D:34

Correct Answer: C

None.

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87.

_______ is the most widely used local area network protocol.

A

Token Ring

B

Token Bus

C

Ethernet

D

none of the above

Correct Answer: C

None.

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88.

The IEEE 802.3 Standard defines _________ CSMA/CD as the access method for first-generation 10-Mbps Ethernet.

A

1-persistent

B

p-persistent

C

non-persistent

D

none of the above

Correct Answer: A

None.

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89.

The _______ layer of Ethernet consists of the LLC sublayer and the MAC sublayer.

A

data link

B

physical

C

network

D

none of the above

Correct Answer: A

None.

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90.

The _____ sublayer is responsible for the operation of the CSMA/CD access method and framing.

A

LLC

B

MII

C

MAC

D

none of the above

Correct Answer: C

None.

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