WorksheetsDNS
Total questions: 10
Worksheet time: 5mins
Which one of the following is not true?
multiple hostnames may correspond to a single IP address
a single hostname may correspond to many IP addresses
a single hostname may correspond to a single IP address
none of the mentioned
DNS database contains _______
name server records
hostname-to-address records
hostname aliases
all of the mentioned
The domain name system is maintained by _______
distributed database system
a single server
a single computer
none of the mentioned
What does DNS stand for?
Domain Notification system
Don't Name Servers
Domain Name Server
Domain Name System
Define DNS
A server which stores just website domain names.
A server which stores website domain names and their IP addresses.
A server which stores just IP adressess.
A server which stores networks.
What 2 advantages does the system provide?
It allows the correct servers to be contacted.
It provides extra knowledge.
It allows users to use the internet without remembering IP addresses.
Its the easiest system to understand.
Which diagram relates to DNS?
What port are suitable for DNS?
55
53
50
51
In a fully qualified domain name, what does the name before the first dot represent?
The top-level domain
The host's name
The host's network
The domain's network
What is the purpose of the Domain Name System (DNS)?
To map host names to IP addresses
To map port names to port numbers
To register names on the Internet
To dictate the Internet's network arrangement
