Top 1000+ Solved Computer Networks MCQ Questions Answer
Q. Which field is NOT a field within an OSPF packet header?
a. packet length
b. router id
c. authentication type
d. maxage time
Q. Which two commands are required for basic OSPF configuration?
a. “[network mask] area [area-id]” and “router ospf [process-id]”
b. “[wildcard-mask] area [area-id]” and “[network mask] area [area-id]”
c. only “router ospf [process-id]”
d. “[wildcard-mask] area [area-id]” and “router ospf [process-id]”
Q. Which OSPF show command describes a list of OSPF adjacencies?
a. show ip ospf interface
b. show ip ospf
c. show ip route
d. show ip ospf neighbor
Q. Datagram switching is done at which layer of OSI model?
a. network layer
b. physical layer
c. application layer
d. transport layer
Q. Packets in datagram switching are referred to as ________
a. switches
b. segments
c. datagrams
d. data-packets
Q. Datagrams are routed to their destinations with the help of ________
a. switch table
b. segments table
c. datagram table
d. routing table
Q. The main contents of the routing table in datagram networks are ___________
a. source and destination address
b. destination address and output port
c. source address and output port
d. input port and output port
Q. Which of the following is true with respect to the delay in datagram networks?
a. delay is greater than in a virtual circuit network
b. each packet may experience a wait at a switch
c. delay is not uniform for the packets of a message
d. all of the mentioned
Q. Which of the following is false with respect to the datagram networks?
a. number of flows of packets are not limited
b. packets may not be in order at the destination
c. path is not reserved
d. delay is the same for all packets in a flow
Q. Network layer firewall works as a __________
a. frame filter
b. packet filter
c. content filter
d. virus filter
Q. Network layer firewall has two sub-categories as _________
a. state full firewall and stateless firewall
b. bit oriented firewall and byte oriented firewall
c. frame firewall and packet firewall
d. network layer firewall and session layer firewall
Q. Which of the following is / are the types of firewall?
a. packet filtering firewall
b. dual homed gateway firewall
c. screen host firewall
d. dual host firewall
Q. A proxy firewall filters at _________
a. physical layer
b. data link layer
c. network layer
d. application layer
Q. A packet filter firewall filters at __________
a. physical layer
b. data link layer
c. network layer or transport layer
d. application layer