Networks

Question 1

What is synchronise data transition

Answer 1

The sender and receiver are synchronised using a common clock signal

Question 2

Whats does HTTP stand for?

Answer 2

hyper text transfer protocol

Question 3

what is the s at the end of HTTPS? and what does it do?

Answer 3

The S stands for secure and it makes the communications secure

Question 4

whats the http method for the SQL insert

Answer 4

POST

Question 5

whats the http method for the SQL retrieve

Answer 5

GET

Question 6

whats the http method for the SQL update

Answer 6

PUT

Question 7

whats the http method for the SQL Delete

Answer 7

DELETE

Question 8

what is fibre optic cable

Answer 8

A fiber optic cable is a network cable that contains strands of glass fibers inside an insulated casing. They’re designed for long-distance, high-performance data networking, and telecommunications.

Question 9

what are the different types of severs

Answer 9

file, web, email, print, database

Question 10

what is in a packet

Answer 10

source address, destination address, data and crc

Question 11

what does Domain name server mean

Answer 11

A server that works to resolve domain names to corresponding IP addresses.

Question 12

what does URL stand for

Answer 12

uniform resource locator

Question 13

what is the uniform resource locator

Answer 13

The URL specifies both the location of the resource and the protocol that will be used to access the resource

Question 14

what does the The Scheme refer to

Answer 14

this is the protocol in the URL for example https

Question 15

what is the Fully Qualified Domain Name (FQDN) on the current URL

Answer 15

this is the www.brainscapes.com in the current URL

Question 16

what is the Domain names www.brainscape.com

Answer 16

brainscape

Question 17

what is the subdomain on www.brainscape.com

Answer 17

www

Question 18

what is the path on this URL brainscape.com/dashboard/a-level-comp-sci/networks/cards/this-card

Answer 18

the paths is /dashboard/a-level-comp-sci/networks/cards
as this is what helps the host find the resource you will notice the current card isnt included in the path as this is the resouce

Question 19

what is the domain name hierarchy

Answer 19

its the identifer at the end of the FQDN for example .com or .uk or .tv

https://isaaccomputerscience.org/concepts/net_internet_domain_name_system?examBoard=aqa&stage=a_level

Question 20

whats a DNS

Answer 20

a domain name sever look up is where a domain name server searches the internet registrars to find the webpage you are after

Question 21

what is POP

Answer 21

pop is the post office protocol is an application layer protocol and retrieves an email from a sever to a client (the email is deleted off the sever afterwards)

Question 22

what does RTS/CTS stand for

Answer 22

Request To Send / Clear To Send

Question 23

what instructions does RTS/CTS follow

Answer 23

check if channel is idle:
if False:
wait random time
else:
send request to send
wait for CTS
if received:
send Msg

Question 24

What does NIC stand for

Answer 24

network interface card

Question 25

what does the WAP stand for

Answer 25

wireless access point

Question 26

what does a WAP do

Answer 26

It manages wireless connections to a local area network.

Question 27

whats serial transition

Answer 27

this is where one bit it sent one after another

Question 28

whats parallel transmission

Answer 28

this is where several bit are sent at the same time over there their own dedicated wires

Question 29

whats a disadvantage of parallel transition

Answer 29

This type of transmission is only reliable over short distances, so it is mainly used inside a computer and in some early peripherals.

Question 30

define bandwidth

Answer 30

The amount of data that can be transmitted in a given time.

Question 31

what does CSMA/CA stand for

Question 32

what does CSMA/CA do

Answer 32

CSMA/CA is a protocol used in wireless networking. It makes sure that network collisions (when two devices attempt to communicate at the same time) are avoided.