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21- What is OSI? Open System Interconnection. t was first name of 7 Layer 22- What is the default size of Frame ? 1518 bytes 23- Which...

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...

1- Define Network? Communication, Resource sharing and Media (When multiple host share their resources with each other OR when multiple devices connect with each other for resource...

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