Domain Name System Questions

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21.

In __________ resolution, the server returns the IP address of the server that it thinks can resolve the query.

A

iterative

B

recursive

C

straight

D

none of the above

Correct Answer: A

None.

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22.

In the domain name chal.atc.fhda.edu, _______ is the least specific label.

A

chal

B

atc

C

edu

D

none of the above

Correct Answer: C

None.

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23.

In the domain name chal.atc.fhda.edu, _______ is the most specific label

A

chal

B

atc

C

fhda

D

none of the above

Correct Answer: A

None.

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24.

A host with the domain name pit.arc.nasa.gov. is on the _______ level of the DNS hierarchical tree. (The root is level one.)

A

third

B

fourth

C

fifth

D

none of the above

Correct Answer: C

None.

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25.

A pointer query involves the _______ domain

A

inverse

B

reverse

C

root

D

none of the above

Correct Answer: A

None.

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26.

DNS can use the services of ________ using the well-known port 53.

A

UDP

B

TCP

C

either (a) or (b)

D

none of the above

Correct Answer: C

None.

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