What is a benefit of a virtual LAN (VLAN)?
A. It increases the number of broadcast domains
B. It decreases the number of broadcast domains
C. It increases the numberr of collision domains
D. It decreases the number of collision domains
E. Since it is a vitual Interface it never shuts down
Answer Posted / mr.shahin07
A) VLAN increase the number of broadcast domain.
Just for example - Take a switch of 12 ports.
As we everybody know that in a switch,
Broadcast Domain - 1
Collision Domain - No of ports i.e. here it is 12.
So in this condition, each port can communicate with each
other. in spite of having 1 broadcast domain & 12 collision
domain.
Make two VLAN (Such as VLAN - 5 (Sachin), VLAN 6 (Dravid)on
that switch & assign SIX (1,2,3,4,5 & 6) ports of the switch
to VLAN 5 & assign rest of SIX (7, 8,9,10,11 & 12) on VLAN 6.
Now port no 1 can't communicate with port 9 without any
router & inter VLAN routing. That means, Creating VLAN is
nothing but logical division of switch. Here we created 2
VLANs, So now there is two broadcast domain.
a) VLAN increase the number of broadcast domain.
b) VLAN reduce the size of broadcast domain.
Is This Answer Correct ? | 19 Yes | 2 No |
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