Syllabus Revision

Question 1

What is HTTPS and what does it do?

Answer 1

HTTPS is the secure version of HTTP, and is where all data is encrypted

Question 2

What is HTTP?

Answer 2

HTTP is the underlying protocol used by the www. It defines how messages are formatted and transmitted over the browser.

Question 3

What is SMTP and what is its function?

Answer 3

Simple mail transfer protocol is a standard for email transmission

Question 4

What is SMNP and what is its function?

Answer 4

Simple network management protocol is a protocol for collecting information about devices on IP networks

Question 5

What is TCP and and its function?

Answer 5

Transmission Control Protocol enables two hosts to establish a connection exchange streams of data

Question 6

What is UDP and its function?

Answer 6

User datagram protocol is an alternative communications protocol to TCP that establishes low-latency and loss-tolerating connections between applications on the internet

Question 7

What is IP and its function?

Answer 7

An internet protocol address is a label assigned to each device connected to a network

Question 8

What is FTP and it’s function?

Answer 8

File transfer protocol allows transfer of files securely

Question 9

Name 1 con to network protocols?

Answer 9

Network complexity

Question 10

Name 1 pro of network protocols?

Answer 10

Multiplexing allows analog or digital signals to be combined into one signal over a shared medium

Question 11

What does it mean for a network to “hang”?

Answer 11

A hang occurs when a program ceases to respond to inputs (e.g computer not responding to users keyboard)

Question 12

Name all 7 layers of the OSI model in order?

Answer 12

Application 
Presentation
Session
Transport 
Network
Data link 
Physical

Question 13

Name 2 pros to the OSI model?

Answer 13

It’s generic and it encrypts data for security purposes

Question 14

Name 2 cons to the OSI model?

Answer 14

Complex to set up and manage, and many applications do not require the data integrity provided by the OSI model

Question 15

What is RIPV1/RIP2?

Answer 15

RIPV1 uses classful routing

RIPV2 uses a classless protocol (useful for small flat networks)

Question 16

What is RIP-NG?

Answer 16

RIPNG works in the same way as RIPV2, but can only run on IPV6 networks

Question 17

What is OSPF?

Answer 17

Open shortest path first is a routing protocol that is used to find the best path for packets as they pass through a set of connected networks

Question 18

What is OSPFv2?

Answer 18

OSPFv2 is a protocol for IPv4 networks