Icnd2 - Switching
Covers Spanning tree and other switch related topics
- 1.
On a switch, how often are DTP frames sent out ?
- A.
10 seconds
- B.
30 seconds
- C.
60 seconds
- D.
300 seconds
- E.
5 minutes
Correct Answer
B. 30 seconds -
- 2.
You're receiving a domain mismatch message on both your switches which are trunked together. How can you prevent this message from appearing?
- A.
Switchport trunk encapsulation Dot1q
- B.
Set the domain name to null on one of the switches
- C.
Switchport mode trunk
- D.
Switchport nonegotiate
Correct Answer
D. Switchport nonegotiate -
- 3.
How many VLANS can switches participating in a VTP domain handle at most?
- A.
1005
- B.
4094
- C.
150
- D.
1000
Correct Answer
A. 1005 -
- 4.
Transparent switches running VTP version one will only pass on updates if the transparent switch matches their domain or its domain is set to null. true of false.
- A.
True
- B.
False
Correct Answer
A. True -
- 5.
How many VLANS can a transparent switch support when it is connected to other switches and is actively forwarding on any VTP updates?
- A.
1002
- B.
1005
- C.
250
- D.
4094
Correct Answer
D. 4094Explanation
transparent switches support a max of 4094 vlans whereas servers and clients support upto 1005Rate this question:
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- 6.
Where do Transparent switches store their VLAN database? choose two
- A.
NVRAM
- B.
RUNNING-CONFIG
- C.
STARTUP CONFIG
- D.
VLAN.DAT
Correct Answer(s)
B. RUNNING-CONFIG
D. VLAN.DAT -
- 7.
VTP server enabled switches store their VLANs in which file or location? choose one
- A.
Running config
- B.
Memory
- C.
FLASH
- D.
Starup-config
- E.
NVRAM
Correct Answer
C. FLASH -
- 8.
Whhat three factors must be met in order for client/server switches to synchronise their VLAN databases? choose three
- A.
ADVERTISEMENT REQUEST
- B.
VTP DOMAIN
- C.
CONFIGUARATION REVISION NUMBER
- D.
VTP VERSION
- E.
VTP PRUNING ENABLED
- F.
VTP PASSWORD
Correct Answer(s)
B. VTP DOMAIN
D. VTP VERSION
F. VTP PASSWORD -
- 9.
VTP cannot be disabled
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
It can be disabled by setting a switch to use VTP transparent mode.Rate this question:
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- 10.
A VTP client switch can send out which of the following types of messages?
- A.
Summary Advert
- B.
Subset message
- C.
VTP Update
- D.
VTP Flag message
- E.
Advertisement Request
Correct Answer(s)
A. Summary Advert
B. Subset message
E. Advertisement Request -
- 11.
VTP Subset messages contain which of the following attributes? choose 4
- A.
MAX VLANS supported
- B.
Config rev#
- C.
VTP Password
- D.
VLAN Database
- E.
VTP Domain
- F.
VTP version
Correct Answer(s)
B. Config rev#
D. VLAN Database
E. VTP Domain
F. VTP version -
- 12.
You attempt to set a VTP password on a switch but get an error message stating it can't be done. What is the reason for this?
- A.
The Switch is a client and therefore cannot set a password
- B.
VTP Secure is not supported in this IOS version
- C.
The switch's version number is one and needs to be changed to two
- D.
VTP Domain=NULL
Correct Answer
D. VTP Domain=NULL -
- 13.
You have added five new VLANS to a switch but the config rev number is still zero. You run the show vlan command and notice the VLANS you have added are all correct and accounted for. Why is the rev number still at Zero? This switch is trunked to a VTP mode server switch and a client on either sides of it.
- A.
A connected switch is over-riding its revision number
- B.
The domain is set to NULL
- C.
The Switch is a transparent mode switch
- D.
The domain name was changed
Correct Answer
C. The Switch is a transparent mode switch -
- 14.
A Junior tech asks you how often VTP messages are sent out informing neighboring trunking switches of their config revision number and domain name. How often will you reply?
- A.
30 seconds
- B.
90 seconds
- C.
300 seconds
- D.
60 seconds
Correct Answer
C. 300 secondsExplanation
As well as every 300 seconds, summary adverts are sent out whenever a vlan database change is implementedRate this question:
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- 15.
A VTP enabled switch receives a message from another switch telling him that he has a superior config revision number. The receiving switch looks at this message and now compares to his own config rev number and he realises his version is lower and therefore outdated. What does this switch do next?
- A.
Send an Advertisement Request
- B.
Send a Subset Message
- C.
Send a VTP update
- D.
Send a Summary Message
Correct Answer
A. Send an Advertisement Request -
- 16.
What type of VTP message is sent out with full details of the VLAN database?
- A.
Update
- B.
Subset
- C.
Summary
- D.
Advertisement Request
Correct Answer
B. Subset -
- 17.
Select 4 possible Admin modes when you issue the "SHOW INTERFACE FA0/1 SWITCHPORT" command
- A.
DYNAMIC DESIRABLE
- B.
STATIC ACCESS
- C.
ACCESS
- D.
TRUNK
- E.
NONEGOTIATE
- F.
DYNAMIC AUTO
- G.
DOWN
- H.
ERR-DISABLED
Correct Answer(s)
A. DYNAMIC DESIRABLE
B. STATIC ACCESS
D. TRUNK
F. DYNAMIC AUTO -
- 18.
You have just issued the "Switchport mode trunk" command on your switch what will be the operating mode displayed in the show interface fa0/2 switchport output?
- A.
TRUNK
- B.
STATIC ACCESS
- C.
DYANAMIC DESIRABLE
- D.
ON
Correct Answer
A. TRUNK -
- 19.
You plug in a host into your switch and then run the show interface fa0/4 switchport command. What will be displayed under the operating mode field?
- A.
DYNAMIC AUTO
- B.
STATIC ACCESS
- C.
DOWN
- D.
TRUNK
Correct Answer
B. STATIC ACCESS -
- 20.
On a new switch you plug in your PC into port fa0/10 and type show interface fa0/10 switchport. What entries will be displayed for the Admin and operational modes? choose TWO
- A.
ADMIN MODE=STATIC ACCESS
- B.
OPERATIONAL MODE=DOWN
- C.
OPERATIONAL MODE=STATIC
- D.
ADMIN MODE=DYNAMIC DESIRABLE
- E.
ADMIN MODE=DYANMIC AUTO
- F.
OPERATIONAL MODE=UP
Correct Answer(s)
C. OPERATIONAL MODE=STATIC
E. ADMIN MODE=DYANMIC AUTO -
- 21.
What is the default STP cost for 10,000Mb interface?
- A.
2
- B.
100
- C.
4
- D.
19
- E.
5
- F.
1
Correct Answer
A. 2 -
- 22.
What is the STP cosf for an interface on a switch which is running at 10Mb
- A.
25
- B.
19
- C.
4
- D.
100
- E.
125
Correct Answer
D. 100 -
- 23.
What is the standard priority number in an STP enabled switch?
- A.
61440
- B.
32768
- C.
24768
- D.
28765
- E.
65535
Correct Answer
B. 32768 -
- 24.
How often are BPDUs sent by default?
- A.
5s
- B.
2s
- C.
10s
- D.
300s
Correct Answer
B. 2s -
- 25.
How often are Hello frames sent by an STP enabled root bridge?
- A.
Whenever the STP topology changes
- B.
10 seconds
- C.
2 seconds
- D.
20 seconds
Correct Answer
C. 2 seconds -
- 26.
WHAT ARE THE FIELDS IN A HELLO BPDU? CHOOSE 5
- A.
SENDER'S BID
- B.
VTP DOMAIN NAME
- C.
AREA NUMBER
- D.
COST TO REACH ROOT BRIDGE
- E.
SUBNET MASK
- F.
ROOT BRIDGE ID
- G.
MAX AGE TIMER
- H.
AUTHENTICATION
- I.
FORWARD DELAY
Correct Answer(s)
A. SENDER'S BID
D. COST TO REACH ROOT BRIDGE
F. ROOT BRIDGE ID
G. MAX AGE TIMER
I. FORWARD DELAY -
- 27.
What is the next state of the STP process as it transitions from blocking mode?
- A.
LEARNING
- B.
DISCARDING
- C.
LISTENING
- D.
DISABLED
- E.
FORWARDING
Correct Answer
C. LISTENING -
- 28.
Which of the following port states will only receive BPDUs but not send them?
- A.
Listening
- B.
Disabled
- C.
Forwarding
- D.
Learning
- E.
Blocking
Correct Answer
E. Blocking -
- 29.
Which of the following STP port states will both send and receive BPDUs
- A.
Learning
- B.
Disabled
- C.
Forwarding
- D.
Blocking
- E.
Listening
Correct Answer(s)
A. Learning
C. Forwarding
E. ListeningExplanation
disabled mode cannot receive or send any BPDUs. Blocking mode can only receive BPDUs but not send themRate this question:
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- 30.
Which of the following port states will learn MAC addresses?
- A.
Discarding
- B.
Forwarding
- C.
Listening
- D.
Blocking
Correct Answer
B. Forwarding -
- 31.
A link in a switched network using 802.1D has gone down but how long will it take before the convergence process is started?
- A.
20 seconds
- B.
2 seconds
- C.
5 seconds
- D.
50 seconds
- E.
15 seconds
Correct Answer
A. 20 seconds -
- 32.
BPDUs are regularly sent out at the default intervals in a networking using 802.1D. But suddenly there is failure. How many missed BPDUs will have to be reached before the 802.1D algorithm is initiated?
- A.
2
- B.
20
- C.
5
- D.
10
Correct Answer
D. 10Explanation
BPDUs are sent every 2 seconds. Max age timer is 20 seconds by default. 20/2=10 BPDUsRate this question:
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- 33.
The "spanning-tree vlan{#} root primary" command is issued, what will the priority be set to as its default?
- A.
32768
- B.
24576
- C.
28672
- D.
0
Correct Answer
B. 24576 -
- 34.
A PC is connected to a switch's edge port and 802.1W is running with all its defaults. When this PC is rebooted what states will the edge type port transition to?
- A.
Forwarding
- B.
Discarding,Forwarding
- C.
Blocking, Listening, Learning, Forwarding
- D.
Discarding, Learning, Forwarding
Correct Answer
D. Discarding, Learning, Forwarding -
- 35.
Which of the following are deemed Cisco proprietary? Choose two
- A.
RSTP
- B.
PVST+
- C.
CST
- D.
RSTP+
- E.
PVST
Correct Answer(s)
D. RSTP+
E. PVST -
- 36.
In RSTP What state is an Alternate port placed in?
- A.
Blocked
- B.
Discarding
- C.
Backup
- D.
Disabled
Correct Answer
B. DiscardingExplanation
Alternate ports are used by RSTP and are divided up into 2 other types called Blocked and Backup states. These ports are in discarding mode in RSTPRate this question:
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- 37.
What duplex do shared link type ports operate at?
- A.
HDX
- B.
100mB
- C.
FDX
- D.
Auto
Correct Answer
A. HDX -
- 38.
Between two switches you have connected up 5 cross over cables and ensured the connected ports are set to trunking. Everthing is kept at defaults. Switch-1 has been elected the ROOT switch. On Switch-2, how many of its interfaces will be able to send traffic to Switch-1?
- A.
0
- B.
1
- C.
4
- D.
5
Correct Answer
B. 1Explanation
There is no mention of etherchannel being setup despite me suggesting it. Switch-2 will only have one port forwarding traffic to Switch-1 because this port will be the root, all others will be in blocking.Rate this question:
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- 39.
You want to make Switch-Gamma the Root so you issue the "Spanning-tree vlan priority #" command on this switch. What number can you use in place of # Choose the TWO best options
- A.
0
- B.
8000
- C.
8192
- D.
32768
- E.
24576
Correct Answer(s)
A. 0
C. 8192Explanation
The priority values can be anything from zero to 61440 but going in increments of 4096. 0 and 8192 are the lowest and importantly most compatible options with the command. 24576 would also work but 0 and 4096 are lower and therefore betterRate this question:
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- 40.
How many BPDUs must be missed before the 802.1W starts getting agitated?
- A.
10
- B.
4
- C.
2
- D.
3
Correct Answer
D. 3Explanation
max age timer=6 seconds. 6/2=3 bpdusRate this question:
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- 41.
What is the maximum value that the BPDU hello timer can be set to/.
- A.
5
- B.
40
- C.
10
- D.
20
Correct Answer
C. 10 -
- 42.
What is the max value which the Max age timer can be set to in STP?
- A.
40
- B.
60
- C.
10
- D.
30
Correct Answer
A. 40 -
- 43.
What is the max value which the Forward delay timer can be set to ?
- A.
10
- B.
50
- C.
60
- D.
20
Correct Answer
D. 20 -
- 44.
Which of the following security violation modes will keep logs?
- A.
Restrict
- B.
Protect
- C.
Disable
- D.
Shutdown
Correct Answer(s)
A. Restrict
D. Shutdown -
- 45.
Which of the following security modes will put a switch port into error disabled state?
- A.
LCP
- B.
Restrict
- C.
Protect
- D.
Shutdown
Correct Answer
D. Shutdown -
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Feb 12, 2013Quiz Edited by
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