Layers, IP, MAC Addressing and Packets

Select all the True statements:

• A network protocol is an agreed way of how to communicate over a network.

• WiFi networks use radio frequencies in the 2.4 GHz or 5 Ghz frequency ranges.

• WAP stands for Wide Area Protocol

• 2.4 GHz frequency networks are slower than 5GHz networks, but have a stronger signal range.

• WiFi networks typically create a ring network topology

What are advantages of dividing network transmission into layers?

• Network communication components are standardised which helps to ensure that different types of hardware and software are able to communicate.

• Through separating the overall network communication processes it makes troubleshooting easier should an error occur.

• To ensure that if changes are made in one layer they do not affect any other layers

• Through dividing overall network communication into smaller, individual components it makes the software development process more straightforward.

• Its easier

When you connect to an ISP you will always get the same IP address.

• False
• True

_______ is a method of transmitting data and communicating, usually via the telephone system.

• Circuit switching
• Packet switching

With _____ _____ messages are broken down into data packets and these are sent individually through a network

• Circuit switching
• Packet switching
• LANs
• WANs

Which protocol is responsible for sending/receiving packets over the internet?

• Http
• Ftp
• TCP/IP
• IMAP

What hardware device routes packets around the computers in your home and to/from the internet?

• Network interface card
• Repeater
• Router
• Bridge

Which protocol provides the destination address  and recognises incoming data packets.  It also routes packets across the Internet.

• IP
• TCP
• Http
• Ftp

A router reads the ….

• IP address

• MAC address

Which of these is NOT correct of packet switching?

• Messages cannot be easily intercepted

• Establishes a route on which to send data packets

• Packets need to be re-ordered

• Maximises the use of the network