Monday, 28 October 2019

Network Security-Protocols

  • Choose FOUR(4) protocols and discuss its details and importance in network security.Research how they aid network security.

  • POP3
-It stands for Post Office Protocol
-Allow you to download email message on your local computer 
-Emails are stored on the server
-Sent messages are stored on the server
-Message can be synced and accessed across multiple devices


Importance:
-It use to build a communication channel between an email client and server.


How?
-When a user checks for new email,the client will connect to the POP3 server.The email client then supplies its username and password to the server for authentication.


Image result for POP3



  • DHCP

-It stand for Dynamic Host Configuration Protocol
-It is a client/server protocol that automatically provides an Internet Protocol (IP) host with its IP address and other related configuration information such as the subnet mask and default gateway.
-DHCP server automatically assigns an IP address and other information to each host on the network so they can communicate efficiently with other endpoints.


Importance:
-DHCP server dynamically assigns an IP address and other network configuration parameters to each devices on a network so they can communicate with other IP networks.




Image result for DHCP



  • IMAP
-It stands for Internet Messaging Access Protocol
-It is an internet standard that describes a protocol for retrieving messages from an email server
-When you read an email message ,you aren't actually downloading or storing it on your computer;instead you're reading it from email service.

Importance:
-It allow users to sync emails between multiple devices.

Image result for IMAP



  • IPSEC

-IPsec stand for Internet Protocol Security
-It is a suite of protocols that secure network communication across IP networks. 
-It provides security services for IP network traffic such as encrypting sensitive data, authentication, protection against replay and data confidentiality.

Importance:
-The data sent over the internet and private networks includes passwords.


How?

-It provide security for routers sending routing  data across the public internet.





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