Networks Flashcards
Which protocol is Connectionless?
UDP
Which protocol numbers each packet so they can be arranged in a sequence by the recipient?
TCP
TCP is faster or slower than UDP?
slower
Is Connection-oriented?
TCP
which sends the packets without numbering?
UDP
True of false. UDP has Lightweight packets with minimal headers?
True. TCP has heavy packets becasue of overheads.
has only error checking?
Udp has Error checking but no recovery. Corrupted packets are simply discarded and not requested again
which sends Acknowledgement sent by the recipient?
TCP.
how does TCP transfer data?
TCP transfers method by stream.
how does UDP transfer data?
by Individual packets.
which has congestion control ?
TCP
what are the Applications for TCP?
File transfer, email, web browsing
what are the Applications for UDP?
Video conferencing, gaming, broadcasts
what is the purpose of link layers?
The data link layer is the protocol layer in a program that handles the moving of data into and out of a physical link in a network.
What is the Mac address used for?
They are used in frame headers to Identify the source
what is the term framing mean?
Framing is a point-to-point connection between two computers or devices consisting of a wire in which data is transmitted as a stream of bits. and is a function of the link layer.
How are errors detected?
caused by signal attenuation, and noise, and then the receiver detects it.
How does error correction work?
the receiver identifies and corrects bit error(s) without sender retransmission.
If the Network addressing is 172.16.20.0/25:
- What is the network address?
- What is the first host address?
- What is the Broadcast address?
- What is the last host address?
- What is the Subnet Mask?
- how many hosts can you have connected?
- ) 172.16.20.0
- ) 172.16.20.0000 0001
- ) 172.16.20.0111 1111 = 172.16.20.127
- )172.16.20.126
5) 255.255.255.128
6) 27-2 = 126 (7 is the number of host bits), (2 addresses are reserved for broadcasting and network address)
