5C

Question 1

What is connection-less oriented communication?

Answer 1

It means data is sent from one endpoint to another without prior arrangement and no guarantees that the data will reach the recipient.

Question 2

What is connection-less oriented communication also known as?

Answer 2

Datagram communication

Question 3

Which protocol is a connection-less oriented communication?

Answer 3

UDP

Question 4

Unlike TCP, UDP does not…?

Answer 4

Establish an end-to-end connection

Question 5

The service provided by UDP is an ____ service that provides no guarantee that the messages or all packets sent would reach from source to destination or be protected from duplication.

Answer 5

unreliable

Question 6

Though low in reliability UDP has less transmission time making
it _____.

Answer 6

Faster

Question 7

UDP is used when speed is the primary importance, such as…?

Answer 7

real-time video conferencing, streaming audio and video, voice over IP (VOIP), music and online games.

Question 8

How does UDP work?

Answer 8

The device at one end of the communication transmits data to the
other, without first ensuring the recipient is available and ready to receive the data.

Question 9

UDP header size is…?

Answer 9

8 bytes

Question 10

What do the UDP header fields consist of?

Answer 10

1. Length
2. Source port
3. Destination port
4. Checksum

Question 11

Which protocols use UDP?

Answer 11

domain name service (DNS), DHCP, trivial file transfer protocol
(TFTP), SNMP, RIP, and VOIP