IP addresses

IP addresses

Networks and the internet

2020-2021 Academic year

Multiple Choice

This protocol used to encrypt all data sent and received to/from web servers

• http

• ftp

• ftps

• https

Multiple Choice

This protocol used to retrieve emails from a server. The server holds the email until client download it

• SMTP

• POP3

• FTP

• HTTP

Multiple Choice

Used by web browser to access web-sites and communicate with web serves

• HTTP

• HTTPS

• FTP

• FTPS

Multiple Choice

Governs the sending of emails over a network to a mail server.

• POP3

• SMTP

• FTP

• HTTP

Multiple Choice

Governs the transmission of files across a network and the internet.

• HTTPS

• FTP

• HTTP

Objectives

• Explain the format of an IP address and how an IP address is associated with a device on a network

  
  

• Explain the differences between public and private IP addresses and how they affect security.

  
  

KEY TERMS

• IP address - a unique address that is assigned to a network device. 

• Public IP address - is assigned to every device that connects to the Internet and each IP address is unique.

• Private IP address - is only used by devices communicating to each other on the same network. 

• HOST is any computer (server) that is interlinked with another machine(s) through an Internet connection

Individual task

Step 1. Read handout "Theoretical review #1" [3 min]

Step 2. Discuss with your Teacher [2min]

Step 3. Read handout "Theoretical review #2" [3 min]

Step 4. Discuss with your Teacher [2min]

Explain why do we need private and public IP addresses.

TRUE/FALSE TIME

IP addresses

Multiple Choice

IP address specifies where you are on a computer network

• TRUE

• FALSE

Multiple Choice

IP address is grouped as 3 octets (8 bits), which are separated by a dot.

• TRUE

• FALSE

Multiple Choice

In a class A address, the first octet is the network portion, others for the hosts.

• TRUE

• FALSE

Multiple Choice

The given IP address 172.31.1.2 identified as Class B address

• TRUE

• FALSE

Multiple Choice

A public IP address must be globally unique and can be addressed directly by any other computer in the world

• TRUE

• FALSE

Multiple Choice

IP address 192.168.1.11 is a suitable for the Router 1 port labelled A

• TRUE

• FALSE

Fill in the Blanks

For the address 205.123.4.192 state the network ID

Fill in the Blanks

For the address 205.123.4.192 state the host id

Plenary

• In pairs, explain to your partner one thing that you have understood really well.

• Then ask them a question about one thing you would like an answer to.

• Can you answer your partner’s question?