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 intelligent device?
No; because it not use header
12- Which protocol switch use for filling its MAC-Table ?
ARP – Address Resolution Protocol
13- What is CAM ?
Content Address Memory. its another name of MAC address table.
14- Which type for communication switch do?
In case of any new event switch do broadcast, after that always do Unicast.
15- If line down and protocol also down; in this case which layer move problem?
Physical Layer – Layer 1
16 – If line up, but protocol down which layer should be troubleshot?
Data link problem – Layer 2
17-On which base switches take decisions?
18- How ARP brings MAC address for switch?
19- How many collision domains are in switch?
Equal number of ports
20- How many broadcast domains are in Switch ?