How Packet movement affect LAN performance

CISA Quick Points -7

Packet can move in one of the following ways:

1. Unicasting

2. Multicasting

3. Broadcasting

Packet movement will be clear by the way of following diagram:

We can see the packet loss will be aximum in Broadcasting.

CISA Type Question 7.

An IS Auditor while auditing a network find degraded performance of a Local Area Network (LAN). Which of the following could be the MAIN reason?

1. Unicast

2. Broadcast

3. Multicast

4.any of the above three can not cause LAN performance degradation.

Answer to CISA Type Question 6.

Correct answer is 1. Diverse Routing

Further Reference:
1. CISA Review Manual by published ISACA
2. http://www.isaca.org

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