OCR GCSE Computer Science 1.3.2 Network Protocols

Which transmission media is capable of having a much higher bandwidth?

• Coaxial

• Twisted pair cable

• Plastic

• Fibre optic

What is meant by a data packet?

• A unit of data that travels along a network

• The number of error found in data when it has been transmitted

• The data a computer needs to connect to a network

• A connection point in a network that allows data to be shared

Which is the right order for network layers

• Application Link Transport Network

• Application Transport Link Network

• Application Transport Network Link

• Transport Link Network Application

Which layer does TCP operate on?

• Application

• Transport

• Network

• Link

Which layer does IP operate on?

• Application

• Transport

• Network

• Link

Which protocol is used for sending emails?

• POP

• IMAP

• SMTP

• FTP

Which of these addresses never changes on a device?

• MAC address

• IP address

What is an advantage of IMAP over POP?

• It is quicker

• It can cope with more email messages

• It will synchronise all devices with the users mailbox

• It has more space to store old messages

Fill the gap in this statement.

IPv4 IP addresses are [___] bit binary numbers separated by full-stops

• 2
• 8
• 32
• 128

Mbps is known as...

• Megabits per second
• Megabytes per second
• Gigabits per second