Layer 4

Question 1

Layer 4 Transport divides data how?

Answer 1

It divides it into Segments & datagrams

Question 2

Transmission Control Protocol (TCP)

Answer 2

Connection-oriented protocol that is a reliable way to transport segments across the network (uses segments & three-way handshake)

Question 3

Three-way handshake

Answer 3

SYN SYN-ACK SYN,
the client going hey server, are you ready to get some information?
Server says sure why not
Client says okay here it comes
transmission begins

Question 4

User Datagram Protocol (UDP)

Answer 4

Connectionless protocol that is an unreliable way to transport segments across the network (does not have to wait for connections) uses datagrams used for increased performance & for video/audio streaming

Question 5

Windowing

Answer 5

Allows the client to adjust the amount of data in each segment. Sends less data with increased retransmission or sends more data with decreased retransmissions (ex. switching time est. for downloading file)

Question 6

Buffering

Answer 6

Occurs when devices allocate memory to store segments if bandwidth is not readily available