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MCQ

Q.

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

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MCQ

1.

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

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2.

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

A

iterative

B

recursive

C

straight

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3.

To have a hierarchical name space, a ______________ was designed.

A

domain space

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domain name

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domain name space

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none of the above

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none of the above

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5.

What a server is responsible for or has authority over is called a _________.

A

domain

B

label

C

zone

D

none of the above

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