Q. Which one is not a method of HTTP?

View solution

Q. Which one of the following is a communication protocol used for email?

View solution

Q. Which one of the following statement about email is false?

View solution

Q. Which one of the following can be used on the IP network to monitor a router?

View solution

Q. Which of the following is true?

View solution

Q. Which of the following is not a Block cipher?

View solution

Q. In a ................................attack, an intruder comes between two communicating parties, Intercepting and replying to their messages.

View solution

Q. A computer crime is

View solution

Q. A program that migrates through networks and operating systems by attaching itself to different Programs and databases is a

View solution

Q. In RSA.............................in the common factor in both keys?

View solution

Q. Programs that come into a computer system disguised as something else are called

View solution

Q. Having a(n) .....................................is important to help large Organization continue operating until Normal computer operations.

View solution

Q. In what way does a firewall increase the securities of a VPN?

View solution

Q. Choose the false one.

View solution

Q. There are 15 users communicating to each other. How many pairs of keys are required to authenticate the communications if the symmetric key is used?

View solution

Q. Let the value of the RTT(Round-Trip-Time)is to be measure (d). The value of the previous RTT be 350μs. Let the value of α be 90% the new RTT, hence the retransmission time is ______ .(Assume it takes a segment at this moment to be acknowledged in 90μs)

View solution

Q. Suppose a web server application generates messages consisting of 120 bytes if every second to the Central host, and each message gets encapsulated in a UDP segment and then an IPV4 Datagram. There are no options added in the TCP (or) Ip headers. What percentage of each Datagram will consist of data generated by the application?

View solution

Q. Suppose that a TCP entity receives 2 MB file from the application layer and the IP layer is willing to Carry blocks of maximum size 1600 B; calculate the amount of overhead incurred from Segmenting the file into packet-sized units. Assume both TCP and Ip header of 20 B.

View solution