Kaviya

What is a computer network?

• A device used to display information on a computer screen
  

• b) A collection of interconnected computers and devices that can communicate and share resources

• c) A type of software used to create documents and presentations

• d) The physical casing that protects a computer’s internal components

What is internet?

• a) A network of interconnected local area networks

• b) A collection of unrelated computers

• c) Interconnection of wide area networks

• d) A single network

What is the full form of OSI?

• a) optical service implementation

• b) open service Internet

• c) open system interconnection

• d) operating system interface

How many layers are there in the ISO OSI reference model?

• 7

• 5

• 4

• 6

Which one of the following is not a function of network layer?

• congestion control

• error control

• routing

• inter-networking

How is a single channel shared by multiple signals in a computer network?

• multiplexing

• phase modulation

• analog modulation

• digital modulation

Which of the following devices forwards packets between networks by processing the routing information included in the packet?

• firewall

• bridge

• hub

• router

Which type of network shares the communication channel among all the machines?

• anycast network

• multicast network

• unicast network

• broadcast network

Which topology requires a multipoint connection?

• ring

• bus

• star

• mesh

1. Which of the following networks extends a private network across public networks?

• virtual private network

• local area network

• storage area network

• enterprise private network