IBPS IT SO Study material- Computer Networks-DNS

IBPS IT SO Study material- Computer Networks

DNS

1. The entire hostname has a maximum of
a) 255 characters
b) 127 characters
c) 63 characters
d) 31 characters

Answer:a
Explanation:None.

2. A DNS client is called
a) DNS updater
b) DNS resolver
c) DNS handler
d) none of the mentioned

Answer:b
Explanation:None.

3. Servers handle requests for other domains
a) directly
b) by contacting remote DNS server
c) it is not possible
d) none of the mentioned

Answer:b
Explanation:None.

4. DNS database contains
a) name server records
b) hostname-to-address records
c) hostname aliases
d) all of the mentioned

Answer:d
Explanation:None.

5. If a server has no clue about where to find the address for a hostname then
a) server asks to the root server
b) server asks to its adjcent server
c) request is not processed
d) none of the mentioned

Answer:a
Explanation:None.

6. Which one of the following allows client to update their DNS entry as their IP address change?
a) dynamic DNS
b) mail transfer agent
c) authoritative name server
d) none of the mentioned

Answer:a
Explanation:None.

7. Wildcard domain names start with label
a) @
b) *
c) &
d) #

Answer:b
Explanation:None.

8. The right to use a domain name is delegated by domain name registers which are accredited by
a) internet architecture board
b) internet society
c) internet research task force
d) internet corporation for assigned names and numbers

Answer:d
Explanation:None.

9. The domain name system is maintained by
a) distributed database system
b) a single server
c) a single computer
d) none of the mentioned

Answer:a
Explanation:None.

10. Which one of the following is not true?
a) multiple hostnames may correspond to a single IP address
b) a single hostname may correspond to many IP addresses
c) a single hostname may correspond to a single IP address
d) none of the mentioned

Answer:c
Explanation:None.

All the best for your exams @Mission IT SO 2016