ICND1 – VLAN Questions
[am4show have=’p2;’]
Premium Member: You can test your knowledge with these questions first via this link.
[/am4show]
Question 1
[am4show have=’p2;’]Refer to the exhibit. Which statement describes the effect of this configuration?
| Router#configure terminal Router(config)#vlan 10 Router(config-vlan)#do show vlan |
A. The VLAN 10 VTP configuration is displayed.
B. VLAN 10 spanning-tree output is displayed.
C. The VLAN 10 configuration is saved when the router exits VLAN configuration mode.
D. VLAN 10 is added to the VLAN database.
Answer: C[/am4show]
Explanation
With the configuration above, when we type “do show vlan” we would not see VLAN 10 in the VLAN database because it has not been created yet. VLAN 10 is only created when we exits VLAN configuration mode (with “exit” command).
Note: We are sure the answer of Q.1 is C although Packet Tracer may give different answer. We believe the author of this question wants to test us in this case. We also tested this with switch v15.2 and the answer is C.
Question 2
[am4show have=’p2;’]Which statement about native VLAN traffic is true?
A. Cisco Discovery Protocol traffic travels on the native VLAN by default
B. Traffic on the native VLAN is tagged with 1 by default
C. Control plane traffic is blocked on the native VLAN.
D. The native VLAN is typically disabled for security reasons
Answer: A[/am4show]
Explanation
Traffic on the native VLAN is untagged -> Answer B is not correct.
Control plane traffic (like CDP, VTP, STP…) runs on VLAN 1 by default. They are not blocked on the native VLAN -> Answer C is not correct.
If the answer says “the native VLAN should be set so that no real traffic running on it for security reasons” then it is correct but the native VLAN is not typically disabled -> Answer D is not correct.
CDP runs on VLAN 1 by default and the native VLAN is also VLAN 1 by default so answer A is the best choice here.
Question 3
[am4show have=’p2;’]Which method does a connected trunk port use to tag VLAN traffic?
A. IEEE 802.1w
B. IEEE 802.1D
C. IEEE 802.1Q
D. IEEE 802.1p
Answer: C[/am4show]
Explanation
IEEE 802.1Q is the networking standard that supports virtual LANs (VLANs) on an Ethernet network. When a frame enters the VLAN-aware portion of the network (a trunk link, for example), a VLAN ID tag is added to represent the VLAN membership of that frame. The picture below shows how VLAN tag is added and removed while going through the network.
Question 4
[am4show have=’p2;’]Which function enables an administrator to route multiple VLANs on a router?
A. IEEE 802.1X
B. HSRP
C. port channel
D. router on a stick
Answer: D[/am4show]
Question 5
[am4show have=’p2;’]Which two VLANs are reserved for system use only? (Choose two)
A. 1
B. 4095
C. 4096
D. 0
E. 1001
Answer: B D[/am4show]
Explanation
The VLANs 0 and 4095 are reserved by the IEEE 802.1Q standard and you cannot create, delete, or modify them so they are the correct answers.
Note:
+ VLAN 0 and 4095 are reserved for system use only. You cannot see or use these VLANs.
+ VLAN 1 and VLANs 1002-1005 are default VLANs. Default VLANs are created automatically and cannot be configured or deleted by users.
+ VLAN 2 to 1001 are normal VLANs. You can create, use and delete them.
+ VLAN 1002 to 1005 are normal VLANs too but Cisco reserved for FDDI an Token Ring. You cannot delete these VLANs.
+ VLAN 1006 to 4094 are extended VLANs (for Ethernet VLANs only)
Reference: http://www.cisco.com/c/en/us/td/docs/ios/12_4t/12_4t15/ht_xvlan.html and http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SX/configuration/guide/book/vlans.html
Question 6
[am4show have=’p2;’]Which network configuration can you use to segregate traffic for two different department in our organization?
A. VTP
B. STP
C. VLAN
D. Etherchannel
Answer: C[/am4show]
for security reason, the native Vlan ID should be changed to other number rather than leave it as default 1.
The answer to 1st qt is not correct.I tested this in CLI and vlan is displayed once you enter do show vlan command.Hence D is correct.
Can anyone else confirm this too.
Can anyone else confirm this too ?
Me too
I agree with you and in addition vlans are not configured on routers. subinterfaces are use on the router side of a trunk. Perhaps they are speaking of a layer 3 switch being used to do routing.
in the question 1 , the answerd is D
How to see the questions ?
@9tut can you confirm question 1? I think the question is worded wrong since you can not create a vlan on a router this way. Although I do recall a question like this on my exam. This could reference and older IOS though
Q1. Ans is D
Switch>en
Switch#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#vlan 10
Switch(config-vlan)#do show vlan
VLAN Name Status Ports
—- ——————————– ——— ——————————-
1 default active Fa0/1, Fa1/1, Fa2/1, Fa3/1
Fa4/1, Fa5/1
10 VLAN0010 active
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
—- —– ———- —– —— —— ——– —- ——– —— ——
1 enet 100001 1500 – – – – – 0 0
10 enet 100010 1500 – – – – – 0 0
1002 fddi 101002 1500 – – – – – 0 0
1003 tr 101003 1500 – – – – – 0 0
1004 fdnet 101004 1500 – – – ieee – 0 0
1005 trnet 101005 1500 – – – ibm – 0 0
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
—- —– ———- —– —— —— ——– —- ——– —— ——
Remote SPAN VLANs
——————————————————————————
Primary Secondary Type Ports
——- ——— —————– ——————————————
Switch(config-vlan)#
This is very cool site, i’m glad that i’m here too
When this dump was updated??? Q 1 answer basically is wrong and everyone can easily prove it using a switch.
The site need to respond to our concerns otherwise i think no one should register any more !
@Waleed: We are sure the answer of Q.1 is C although Packet Tracer may give different answer. We believe the author of this question wants to test us in this case. We also tested this with switch v15.2 and the answer is C.
@Waleed i have the cram exam book the answer is C.
the vlan doesnt get added until you exit
ICND1 FRESH DUMPS PLZZZZ @9TUT
The picture has router and not switch and when I do put vlan 10 it does not accept it.