Network Addressing Questions

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31.

In classless addressing, the _______ is the varying part (similar to the hostid).

A

suffix

B

prefix

C

hostid

D

none of the above

Correct Answer: A

None.

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32.

In classless addressing, the prefix length defines the _____________

A

netid

B

hostid

C

mask

D

none of the above

Correct Answer: C

None.

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33.

In a block, the prefix length is /24; what is the mask?

A

255.255.255.0

B

255.255.242.0

C

255.255.0.0

D

none of the above

Correct Answer: A

None.

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34.

In a block, the prefix length is /15; what is the mask?

A

255.254.0.0

B

255.255.255.0

C

255.255.255.128

D

none of the above

Correct Answer: A

None.

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35.

In a block, the mask is 255.255.192.0; what is the prefix length?

A

/20

B

/28

C

/18

D

none of the above

Correct Answer: C

None.

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36.

An IPv6 address is _________ bits long

A

32

B

64

C

128

D

none of the above

Correct Answer: C

None.

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37.

What is the default mask for class A in CIDR notation?

A

/9

B

/8

C

/16

D

none of the above

Correct Answer: B

None.

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38.

What is the default mask for class B in CIDR notation?

A

/9

B

/8

C

/16

D

none of the above

Correct Answer: C

None.

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39.

. What is the default mask for class C in CIDR notation?

A

/24

B

/8

C

/16

D

none of the above

Correct Answer: A

None.

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40.

To make addresses more readable, IPv6 specifies ____________notation

A

dotted decimal

B

hexadecimal colon

C

both a and b

D

none of the above

Correct Answer: B

None.

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