protocols and layers

Question 1

HTTP

Answer 1

hyper text transfer protocol

used by web browsers to access and communicate with web servers

Question 2

HTTPS

Answer 2

secure HTTP, all info is encrypted

Question 3

TCP

Answer 3

provides error-free transmission
between two routers

Question 4

IP

Answer 4

internet protocol - sends packets to the destination across the network

Question 5

POP

Answer 5

post office protocol

receives and deletes email off of server

Question 6

IMAP

Answer 6

internet message access

keeps email on the mail server, is only deleted manually

Question 7

SMTP

Answer 7

simple mail transfer

sends emails

transfers outgoing emails from servers to another server

Question 8

FTP

Answer 8

file transfer protocol

used to access, edit, and move files between devices
on a network

Question 9

Application layer

Answer 9

layer 4, eg protocols FTP HTTP SMTP, provides user access to applications, websites files, emails

Question 10

Transport layer

Answer 10

layer 3, eg protocols, TCP,

provides transport of data between devices

Question 11

which layer is the Network layer and what does it consist of

Answer 11

layer 2
eg, protocols, ip
provides routing of data across network

Question 12

Data link layer and physical layer

Answer 12

Layer 1,
eg protocols,

provides transport of data through electrical signals

Question 13

what is a benefit of layering?

Answer 13

1) self contained meaning it can be worked on on its own
2)reduces complexity of problem
3)devices manufactured to operate at a particular layer
4) products from different manufacturers will work together

Question 14

what is a layer

Answer 14

division of network functionality