The conditional GET mechanism

• A. Imposes conditions on the objects to be requested
• B. Limits the number of response from a server
• C. Helps to keep a cache upto date
• D. None of the mentioned

Which of the following is present in both an HTTP request line and a status line?

• A. HTTP version number
• B. Url
• C. Method
• D. None of the mentioned

The entire hostname has a maximum of ___________

• A. 255 characters
• B. 127 characters
• C. 63 characters
• D. 31 characters

A DNS client is called _________

• A. DNS updater
• B. DNS resolver
• C. DNS handler
• D. None of the mentioned

Servers handle requests for other domains _______

• A. Directly
• B. By contacting remote DNS server
• C. It is not possible
• D. None of the mentioned

DNS database contains _______

• A. Name server records
• B. Hostname-to-address records
• C. Hostname aliases
• D. All of the mentioned

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

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

Wildcard domain names start with label _______

• A. @
• B. *
• C. &
• D. #

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