Protocols Flashcards
What is the definition of a protocol
a set of rules
Protocols to transfer data
TCP, IP, UDP
What is the role of TCP?
breaks data down into small packets so its able to be transferred across a network
What is the role of IP?
in charge of routing and addressing data packets ensuring it goes to the correct destination.
What is the role of UDP?
faster alternative to TCP, used where low latency is important.
What are the hyper text transfer protocols?
HTTP, HTTPS
What is FTP?
a file transfer protocol that is used to transfer files across a network.
What are the network management protocols?
ICMP, SNMP
What is the role of ICMP (internet control message protocol) and SNMP (simple network management)
ICMP= collects network status information such as router errors.
SNMP= records network statistics such as router usage.
What are the email protocols?
SMTP( simple mail transfer protocol) = sends emails to a mail server also between mail servers.
POP( post office protocol) downloading and storing emails from a mail server.
What are the 7 layers in order?
- application server
- presentation layer
- session layer
- transport layer
- network layer
- data link layer
- physical layer
What is application layer?
where application access the network services
What is the presentation layer?
makes sure data is in a useable format. This is where data encryption occurs
What is the session layer?
responsible for controlling ports and sessions.
What is a transport layer?
transmits data using transmission protocols such as TCP and UDP.
What is a network layer?
decides which path the data will take physically.
What is a data link layer?
defines the format of the data
What is a physical layer?
transmits raw bit stream over the medium.
