Computer Networks Questions & Answers -
#1: Transport layer aggregates data from different applications into a single stream before passing it to
a) network layer
b) data link layer
c) application layer
d) physical layer
a) network layer
b) data link layer
c) application layer
d) physical layer
#2: Which one of the following is a transport layer protocol used in internet?
a) TCP
b) UDP
c) both (a) and (b)
d) none of the mentioned
a) TCP
b) UDP
c) both (a) and (b)
d) none of the mentioned
#3: User datagram protocol is called connectionless because
a) all UDP packets are treated independently by transport layer
b) it sends data as a stream of related packets
c) both (a) and (b)
d) none of the mentioned
a) all UDP packets are treated independently by transport layer
b) it sends data as a stream of related packets
c) both (a) and (b)
d) none of the mentioned
#4: DNS database contains
a) name server records
b) hostname-to-address records
c) hostname aliases
d) all of the mentioned
a) name server records
b) hostname-to-address records
c) hostname aliases
d) all of the mentioned
#5: 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
a) dynamic DNS
b) mail transfer agent
c) authoritative name server
d) none of the mentioned
#6: TTP is ________ protocol.
a) application layer
b) transport layer
c) network layer
d) none of the mentioned
a) application layer
b) transport layer
c) network layer
d) none of the mentioned
#7: TTP client requests by establishing a __________ connection to a particular port on the server.
a) user datagram protocol
b) transmission control protocol
c) broader gateway protocol
d) none of the mentioned
a) user datagram protocol
b) transmission control protocol
c) broader gateway protocol
d) none of the mentioned
#8: The file transfer protocol is built on
a) data centric architecture
b) service oriented architecture
c) client server architecture
d) none of the mentioned
a) data centric architecture
b) service oriented architecture
c) client server architecture
d) none of the mentioned
#9: Which one of the following allows a user at one site to establish a connection to another site and then pass keystrokes from local host to remote host?
a) HTTP
b) FTP
c) telnet
d) none of the mentioned
a) HTTP
b) FTP
c) telnet
d) none of the mentioned
#10: Which of the following is an application layer service ?
a) Network virtual terminal
b) File transfer, access, and management
c) Mail service
d) All of the mentioned
a) Network virtual terminal
b) File transfer, access, and management
c) Mail service
d) All of the mentioned
