Computer Networking

Which of the following is false with respect to UDP?

• Connection-oriented

• Unreliable

• Transport layer protocol

• Low overhead

What is the main advantage of UDP?

• More overload

• Reliable

• Low overhead

• Fast

The ______ field is used to detect errors over the entire user datagram.

• udp header

• checksum

• source port

• destination port

Size of TCP segment header ranges between ___________.

• 16 and 32 bytes

• 16 and 32 bits

• 20 and 60 bytes

• 20 and 60 bits

In Three-Way Handshaking process, the situation where both the TCP’s issue an active open is ___________.

• Mutual open

• Mutual Close

• Simultaneous open

• Simultaneous close

What allows TCP to detect lost segments and in turn recover from that loss?

• Sequence number

• Acknowledgment number

• Checksum

• Both Sequence & Acknowledgment number

To use the services of UDP, we need ……… socket addresses.

• four

• two

• three

• four

UDP packets have a fixed-size header of ………. bytes.

• 16

• 8

• 32

• 64

Header size of the ICMP message is _________.

• 8-bytes

• 8-bits

• 16-bytes

• 16-bits

During error reporting, ICMP always reports error messages to ________.

• Destination

• Source

• Next router

• Previous router