TCP vs UDP: Key Differences & Protocol Characteristics

Classified in Computers

Written at February 27, 2025 on English with a size of 3.24 KB.

Here's a breakdown of key characteristics and differences between TCP and UDP protocols:

TCP and UDP sockets are created by the transport layer: False
Before any data exchange takes place between two UDP applications, a logical connection must be established between them: False
Both SMTP and POP3 are TCP based: True
The UDP segment contains a checksum: True
The TCP segment contains a checksum: True
UDP makes use of the Selective Repeat protocol: False
The Selective Repeat algorithm is used for congestion control: False
HTTP uses TCP as its underlying transport protocol: True
With POP3, the email message is always deleted from the mail server if the client downloads the email message to its local email client application: False
Only TCP uses port numbers, but UDP does not use port numbers: False
The Go-Back-N algorithm uses a timer: True
The Selective Repeat algorithm uses a timer: True
The Go-Back-N algorithm can handle out-of-order packets: False
The Selective Repeat algorithm can handle out-of-order packets: True
With the Go-Back-N algorithm, the receiver needs a buffer: False
With the Selective Repeat algorithm, the receiver needs a buffer: True
HTTP is a stateless protocol: True
The UDP protocol runs on top of the IP protocol: True
The internet uses mainly circuit switching: False
UDP uses the sliding window technique for congestion control: False

CIDR is the internet's address assignment strategy: True
FTP runs on top of UDP: False
DNS does not make use of caching: False
UDP is connectionless: True
Go-Back-N is a stop-and-wait protocol: False
TCP/IP perform error checking at both the transport layer and the network layer: True
HTTP is primarily a push protocol: False
A TCP connection provides a full-duplex service: True
UDP uses the Go-Back-N algorithm: False
In the Go-Back-N protocol, received out of order packets are buffered: False

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