Consider the resolution of the domain name www.gate.org.in by a DNS resolver. Assume that no resource records are cached anywhere across the DNS servers and that iterative query mechanism is used in the resolution. The number of DNS query-response pairs involved in completely resolving the domain name is .
Question 1 Explanation:
Assume that you have made a request for a web page through your web browser to a web server. Initially the browser cache is empty. Further, the browser is configured to send HTTP requests in non-persistent mode. The web page contains text and five very small images.The minimum number of TCP connections required to display the web page completely in your browser is__________.
Question 2 Explanation:
Which of the following protocol pairs can be used to send and retrieve e-mails (in that order)?
Question 3 Explanation:
What is WPA?
wired protected access
wi-fi protected access
wired process access
wi-fi process access
Question 4 Explanation:
Which protocol suite designed by IETF to provide security for a packet at the Internet layer?
Question 5 Explanation:
Which of the following protocol is used for transferring electronic mail messages from one machine to another?
Question 6 Explanation:
When a DNS server accepts and uses incorrect information from a host that has no authority giving that information, then it is called
None of the mentioned
Question 7 Explanation:
Identify the correct sequence in which the following packets are transmitted on the network by a host when a browser requests a webpage from a remote server,assuming that the host has just been restarted.
HTTP GET request, DNS query, TCP SYN
DNS query, HTTP GET request, TCP SYN
DNS query,TCP SYN, HTTP GET request
TCP SYN, DNS query, HTTP GET request
Question 8 Explanation:
Which of the following is/are example(s) of stateful application layer protocols?
Question 9 Explanation:
Which statement is false?
PING is a TCP/IP application that sends datagrams once every second in the hope of an echo response from the machine being PINGED
If the machine is connected and running a TCP/IP protocol stack, it should respond to the PING datagram with a datagram of its own
If PING encounters an error condition, an ICMP message is not returned
PING display the time of the return response in milliseconds or one of several error message
Question 10 Explanation:
There are 10 questions to complete.