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
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Answer / 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 |
Answer / m hussain
virtual lan is nothing but dividing a big switch into many switch. suppose if we have 12 port switch . if we divide this switch into two switch . suppose vlan 1 and vlan 2 . suppose in each vlan we have 4 and 6 port is there respectively.after dividing the vlan thus the computer connected with vlan1 can't communicate with vlan2 computer . thus we get two switch from one switch . in a sw. we can create many vlan upto 1005 vlan.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / kapilasdhir
B. It decreases the number of broadcast domains
| Is This Answer Correct ? | 14 Yes | 16 No |
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