GCSE Network protocols Exam Questions and Answers
POP3 (Post Office Protocol 3) - Answer-Retrieves emails from an email server. Once downloaded the email is deleted from the email server.
HTTP (HyperText Transfer Protocol) - Answer-Transfers web pages from web servers to the client.
IMAP (I...
POP3 (Post Office Protocol 3) - Answer-Retrieves emails from an email server. Once
downloaded the email is deleted from the email server.
HTTP (HyperText Transfer Protocol) - Answer-Transfers web pages from web servers
to the client.
IMAP (Internet Message Access Protocol) - Answer-Retrieves emails from a web based
email server. A copy is downloaded - the original is retained until deleted by the user.
SMTP (Simple Mail Transfer Protocol) - Answer-Used to send emails and to transfer
emails between servers.
UDP (User Datagram Protocol) - Answer-Used to establish fast (low-latency) and loss
tolerating connections between applications on the network e.g. live streaming. Lost
data packets are not resent.
IP (Internet Protocol) - Answer-Responsible for routing data through networks using
packet switching.
Data packet - Answer-A part of a transmitted message that is sent across a network.
Apart from containing a portion of the message it will have other data such as the
source address and the destination address.
Packet switching - Answer-The transfer of data packets across networks. The route of
data transfer is determined by the IP (Internet Protocol).
TCP/IP Model - Answer-A four-layer data communication model.
TCP/IP Model Layers - Answer-1. Link
2. Internet
3. Transport
4. Application
Link Layer - Answer-Encompasses the protocols that are used to control the physical
hardware to connect hosts using the physical MAC address held on the the Network
Interface Card/Controller (NIC) and transmission media e.g. Ethernet and WIFI
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