computer

The protocol data unit (PDU) for the application layer in the Internet stack is

• segment

• message

• datagram

• frame

What is the full form of OSI?

• operating system interface

• open service Internet

• open system interconnection

• optical service implementation

What are nodes in a computer network?

• the computer that routes the data

• the computer that originates the data

• the computer that terminates the data

• all of the mentioned

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

• error control

• routing

• inter-networking

• congestion control

Which of this is not a network edge device?

• pc

• smartphones

• switch

• servers

Which network topology requires a central controller or hub?

• ring

• star

• bus

• mesh

What type of transmission is involved in communication between a computer and a keyboard?

• half duplex

• automatic

• full duplex

• simplex

Which layer provides the services to user?

• physical layer

• session layer

• presentation layer

• application layer

Which of the following allows you to connect and login to a remote computer?

• SMTP

• FTP

• HTTP

• Telnet

How many types of networks are there?

• 2

• 1

• 3

• 4