Computer Networks MCQs
998+ questions with answers
POP3 protocol belongs to which layer of the ISO OSI model?
Which port is used for sending messages using SMTP securely?
Which protocol forbids users from making any modifications like create, delete or rename emails on the mail server?
IMAP protocol is used to ___________
The main reason for transition from IPv4 to IPv6 is _________
Which of the following is not a transition strategy?
To determine which version to use when sending a packet to a destination, the source host queries which of the following?
The strategy used when two computers using IPv6 want to communicate with each other and the packet must pass through a region that uses IPv4 is ______________
The correct format of packet in tunnel that uses IPv4 region is ________ i. IPv6 header ii. Payload iii. IPv4 header
Header translation uses ___________ to translate an IPv6 address to an IPv4 address.
Which of the following is not a step in the Header translation procedure?
Which of the following is not applicable for IP?
Which of the following field in IPv4 datagram is not related to fragmentation?
The TTL field has value 10. How many routers (max) can process this datagram?
If the value in protocol field is 17, the transport layer protocol used is _________
Which field helps to check rearrangement of the fragments?
The header length of an IPv6 datagram is ___________
In an IPv6 header, the traffic class field is similar to which field in the IPv4 header?
IPv6 does not use ________ type of address.
Which one of the following is correct according to the definition of routing algorithm?
Which address is used by the router to forward packets?
What message will be returned by the router if it receives data more than its capacity?
Which one of the following is incorrect about routers?
Which of the following can be used by a router to increase the processing speed of the packet?
Router belongs to which layer?
In which routing, the destination address field contains the address of the next router?
Which routing algorithm was replaced by link state routing algorithm in the ARPANET?
What is flooding in link state routing in case of exchanging topology information?
Which information in the link state packets helps in discarding old link state packets?
Which sequence of procedure is correct to build a routing table in link state routing?
Which algorithm is used by the router in the link state routing to find the shortest paths?
Which of the following is an advantage of the link state routing?
What is the full form of LSA in link state routing, which is used to exchange information between routers?
What is the other name for distance vector routing algorithm?
How tables are updated in the distance vector routing algorithm?
Which of the following is not a similarity between flooding and distance vector routing?
Which statement is correct about routing tables in distance vector routing?
What is the default distance between two nodes in the initial routing table, if these two nodes are not immediate neighbors in distance vector routing?
Which protocols are considered as intra-domain routing protocols?
Which technique can be used in multicast routing to overcome the problem of count-to-infinity which occurs in distance vector routing?
Which routing does not permit the router to send its routing table to its neighboring nodes?
Which of the following is the broadcast address for a Class B network ID using the default subnetmask?
You have an IP address of 172.16.13.5 with a 255.255.255.128 subnet mask. What is your class of address, subnet address, and broadcast address?
If you wanted to have 12 subnets with a Class C network ID, which subnet mask would you use?
The combination of _________ and __________ is often termed the local address of the local portion of the IP address.
_________ implies that all subnets obtained from the same subnet mask.
__________ is a high performance fiber optic token ring LAN running at 100 Mbps over distances upto 1000 stations connected.
Which of the following are Gigabit Ethernets?
_________ is a collective term for a number of Ethernet Standards that carry traffic at the nominal rate of 1000 Mbit/s against the original Ethernet speed of 10 Mbit/s.
_________ is another kind of fiber optic network with an active star for switching.