UDP Flashcards
1
Q
What does UDP stand for?
A
User Datagram Protocol
2
Q
What does UDP allow computer applications to do?
A
Send datagrams to other hosts on IP networks without prior communications to setup communication channels or data paths.
3
Q
What do checksums in UDP provide?
A
Data integrity.
4
Q
What do port numbers in UDP provide?
A
Addressing different functions at the source and destination of the datagram.
5
Q
What does lack of handshaking dialogue expose app to in UDP?
A
Unreliability of underlying network.
6
Q
What are TCP guarantees that that UPD lacks?
A
- packet delivery
- packet ordering
- duplicate packet protection.
7
Q
What are good use cases for UDP?
A
Streaming apps like online games, VOIP, or video conferencing.
8
Q
Why is UDP used in DNS?
A
Queries are fast and only consist of a single request followed by a single reply packet.
