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
- 4 Answers
- 16993 Views
- jetking, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
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 |
what is difference between subnet-mask and wildcard mask?
IP RIP routing is conferred on a router but not all interfaces attach to RIP networks. What should you use to prevent all RIP routing updates from being sent through selecedc interfaces without using access lists? A. passive route B. default routes C. passive interface D. route update filtering
Which statement about an IP network is true? A. A broadcast source MAC address contains all zeros B. A MAC address is part of the physical layer of the OSI model C. MAC addresses are used by bridges to make forwarding decisions. IP address are used by routers. D. IP addresses allow a flat addressing scheme. MAC addresses use a hierarchical addressing scheme.
Wild card mask always in odd value or even?
Cisco routers can secure the enable password with a one-way hash algorithm. What command would encrypt the enable password with the strong encryption method? A.) enable encrypt john B.) password john C.) enable secret john D.) enable password john E.) secret john F.) enable password 5 john
Which three devices can be used to convert the user data from the DTE into a form acceptable to the WAN service's facility? A. Modem B. CSU/DSU C. TA/NT1 D. CO E. SS7
Identify 1 characteristic of RARP? A.) IP to MAC address translation B.) Connectionless delivery of packets C.) Can be used to initiate remote O/S load sequence D.) Generates error and control messages
Which OSI Reference Layer controls application to application communication? A.) Datalink B.) Network C.) Transport D.) Session E.) Physical
Identify the X.25 addressing standard? A.) X.121 B.) X.25a C.) ITU-1 D.) Q933a
Which OSI layer provides best effort end to end packet delivery? A.) Data-Link B.) Presentation C.) Network D.) Transport E.) Physical F.) Application
What s the formula for metric of ospf?
what is the network address?
CCNA 
