CS8591-COMPUTER NETWORKS-UNIT-1

Provides a connection oriented reliable service for sending messages

• TCP
• UDP
• IP
• All of the above

Which of the following layer is called as end to end layer ?

• Physical Layer
• Datalink Layer
• Network Layer
• Transport Layer

What is the meaning of bandwidth in network?

• Transmission capacity for communication channel
• Connected computers in the network
• Class of IP used in Network
• None of the above

Computer network is

• Collection of hardware components and computers
• Interconnected by communication channel
• Sharing of resources and information
• All of the above

Which of the following layer does error checking of data ? 

• Data Link Layer
• Network Layer
• Physical Layer
• Transport Layer

The physical layer is responsible for the transmission of __  over the physical medium

• Packets
• bits
• message
• segment
• all of the above

Protocols are

• Agreements on how communication components and DTE’s are to communicate
• Logical communication channel used for transferring data
• Physical communication channel used for transferring data
• None of the above

In a broad sense a railway track is an example of  

• Simple
• Half Duplex
• Full Duplex
• All of the above

A device that can convert digital signals to analog

• A packet
• A modem
• An emulator
• None of the above

Local area networks can transmit

• Faster than telecommunications over public telephone lines
• Slower than telecommunication over public lines
• By using twisted or coaxial cable
• Both A and C