TCP IP

Question 1

Which layer of the TCP / IP stack is responsible for
establishing a virtual path between the sender and
the receiver?

Answer 1

Transport

Question 2

Name the four HTTP request methods used by
REST

Answer 2

POST, GET, PUT, DELETE

Question 3

Which of the following is
a socket address?

192.168.1.1 - A
255.255.255.0 - B
56.32.112.3:21 - C

Answer 3

C

Question 4

Which protocol uses port 80

Answer 4

HTTP

Question 5

A device has the IP address 192.168.12.44 and the
subnet mask 255.255.0.0. What is the device’s
network identifier?

Answer 5

192.168.0.0

Question 6

Which layer of the TCP / IP stack is responsible for
controlling physical connections between pieces of
hardware in a network?

Answer 6

Link

Question 7

Which type of IP address allows for more unique
permutations: IPv4 or IPv6?

Answer 7

IPv6

Question 8

What is FTP used for?

Answer 8

Sending files between devices

Question 9

How many bits are assigned to each part of an IPv4
address?

Answer 9

Eight (one byte)

Question 10

Which protocol uses port 995?

Answer 10

POP3

Question 11

Which allows for greater centralised control of a
network: thick- or thin-client?

Answer 11

Thin-client

Question 12

Which protocol uses a pool of available |IP addresses
to allocate IP addresses?

Answer 12

DHCP

Question 13

Which API allows for fast transmission of data by
reducing the size of packet headers?

Answer 13

The WebSocket protocol

Question 14

For what do the letters DHCP stand?

Answer 14

Dynamic host configuration protocol

Question 15

Which protocol uses port 443?

Answer 15

HTTPS

Question 16

What is REST an acronym for?

Answer 16

Representational state transfer

Question 17

List the four layers of the TCP / IP stack in the
correct order

Answer 17

Application
Transport
Network
Link

Question 18

How long are IP addresses issued to a device by
DHCP assigned for?

Answer 18

The duration of the device’s session

Question 19

What name is given to the process of routers
replacing private IP address on packets with their
own routable IP address?

Answer 19

NAT (Network address translation)

Question 20

Which layer of the TCP / IP stack is responsible for
providing the correct IP addresses for each packet’s
source and destination?

Answer 20

Network

Question 21

Which type of IP address is globally unique: routable
or non-routable?

Answer 21

Routable (public)

Question 22

What is an application programming interface (API)?

Answer 22

A set of protocols relating to how
different applications communicate with
each other

Question 23

What is used when a client needs to communicate
with a server that is connected to a private network?

Answer 23

Port forwarding