OCR Computer Science - Networks

Which of these is the correct definition of a router?

• Forwards data packets along a network

• Corrects errors that are found in data packets

• A type of transmission media that provides the greatest bandwidth

• A server within a network

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

• Coaxial

• Twisted pair cable

• Plastic

• Fibre optic

Which type of transmission media is the least expensive to manufacture?

• Coaxial

• Twisted pair cable

• Plastic

• Fibre optic

Which of these components is internal to a computer and is required to connect the computer to a network?

• Wireless Access Point

• Network Interface card

• Switch

• Hub

What is meant by latency in the performance of a network?

• The amount of time data takes to travel from the source to the destination

• The maximum rate that data can be transferred at

• The number of errors that are found in a data packet after transmission

• The route a packet takes when it is being transmitted

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 if these terms refers to the maximum rate at which data can be transferred?

• Error detection

• Packet switching

• Bandwidth

• Transmission media

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 topology is this a picture of

• Star

• Bus

• Mesh

• Ring