data link layer

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what is Connection oriented and Connectionless

Difference Between Connection oriented vs Connection less  Connection-oriented means that a connection (a virtual link) must be established before data can be exchanged. This can guarantee that data...

CCNA Interview Questions

After Review CCNA course we Conclude some short Questions with Answers CCNA Interview Question Part 1 CCNA Interview Question Part 2 CCNA Interview Question Part 3 CCNA Interview...

Interview Question of CCNA Part 2

11- What is the difference between bus topology and HUB? Hub is Centralized device ( series ) .Bus topology is Decentralized device (in parallel) 12- Is hub...

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