0 — Test 384

Correct Answer: B. B. 1
Explanation: By default the http connection will be persistent connection. Hence it will take only 1 RTT to fetch a webpage from a server.

Correct Answer: A. A. Request line
Explanation: The line followed by request line are called header lines and status line is the initial part of response message.

Correct Answer: A. A. Request line
Explanation: It is specified in the method field of request line in the HTTP request message.

Correct Answer: C. C. Get
Explanation: There are two methods which help to request a response from a server. Those are GET and POST. In GET method, the client requests data from server. In POST method the client submits data to be processed to the server.

Correct Answer: C. C. Head
Explanation: HEAD method is much faster than GET method. In HEAD method much smaller amount of data is transferred. The HEAD method asks only for information about a document and not for the document itself.

Correct Answer: D. D. 304 not found
Explanation: 404 Not Found.

Correct Answer: C. C. Helps to keep a cache upto date
Explanation: The HTTP protocol requests the server of the website its trying to access so that it can store its files, images etc. in cache memory. This request of asking the server for a document considering a specific parameter is called conditional GET Request.

Correct Answer: A. A. HTTP version number
Explanation: Status line is the the start line of an HTTP response. It contains the information such as the protocol version, a status text, status code.

Correct Answer: A. A. 255 characters
Explanation: An entire hostname can have a maximum of 255 characters. Although each label must be from 1 to 63 characters long. Host name is actually a label that is given to a device in a network.

Correct Answer: B. B. DNS resolver
Explanation: DNS client also known as DNS resolver also known as DNS lookup helps to resolve DNS requests using an external DNS server.