test corrections

define computer network

Connected computers which can share information and data

How would limited bandwidth cause slow network performance? (3)

• low data transfer

• longer to download files

• longer to upload files

role of a router (2)

• connects two or more networks together

• directs packets towards their destination

Describe the role of a DNS when accessing websites. (2)

• the DNS translates the domain names to their IP addresses

• the browser locates the correct server

what is meant by packet switching? (5)

• data is split into packets

• packets are sent separately

• packets take different routes across the network

• small packets are transmitted quickly

• packets are reassembled at their destination