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Troubleshooting Questions

Question 1

Refer to the exhibit.


Which two are causes of output queue drops on FastEthernet0/0? (Choose two)

A. an oversubscribed input service policy on FastEthemet0/0
B. a duplex mismatch on FastEthernet0/0
C. a bad cable connected to FastEthernet0/0
D. an oversubscribed output service policy on FastEthernet0/0
E. The router trying to send more than 100 Mb/s out of FastEthernet0/0


Answer: D E

Question 2

Refer to the exhibit.

%C4K_L3HWFORWARDING-2-FWDCAMFULL: L3 routing table is full. Switching to software forwarding

While troubleshooting high CPU utilization of a Cisco Catalyst 4500 Series Switch, you notice the error message that is shown in the exhibit in the log file. What can be the cause of this issue, and how can it be prevented?

A. The hardware routing table is full. Redistribute from BGP into IGP.
B. The software routing table is full. Redistribute from BGP into IGP.
C. The hardware routing table is full. Reduce the number of routes in the routing table.
D. The software routing table is full. Reduce the number of routes in the routing table.


Answer: C

Question 3

Refer to the exhibit.


ICMP Echo requests from host A are not reaching the intended destination on host B. What is the problem?

A. The ICMP payload is malformed.
B. The ICMP Identifier (BE) is invalid.
C. The negotiation of the connection failed,
D. The packet is dropped at the next hop.
E. The link is congested.


Answer: D

Question 4

Refer to the exhibit.


Which statement describes the effect on the network if FastEthernet0/1 goes down temporarily?

A. FastEthernet0/2 forwards traffic only until FastEthernet0/1 comes back up.
B. FastEthernet0/2 stops forwarding traffic until FastEthernet0/1 comes back up.
C. FastEthernet0/2 forwards traffic indefinitely.
D. FastEthernet0/1 goes into standby.


Answer: C

Question 5

A GRE tunnel is down with the error message %TUN-5-RECURDOWN: Tunnel0 temporarily disabled due to recursive routing error. Which two options describe possible causes of the error? (Choose two)

A. Incorrect destination IP addresses are configured on the tunnel.
B. There is link flapping on the tunnel.
C. There is instability in the network due to route flapping.
D. The tunnel mode and tunnel IP address are misconfigured.
E. The tunnel destination is being routed out of the tunnel interface.


Answer: C E

Comments (7) Comments
  1. Prakash
    August 21st, 2014

    Hi Sudhir,

    Can you please share the dumps which you are preparing for the exam..

  2. Mostafa
    October 15th, 2014

    I have trouble understanding these questions. Can somebody explain these answers in details?

  3. Hosam
    January 6th, 2015

    Q3) shouldn’t the answer be (E), not (D)??? The only problem we can see from the exhibit is output packet drop?

  4. L..
    January 29th, 2015

    in Q3, there’s a wrong picture – at examcollection’s premium vce, there’s http://tinypic.com/r/219urnq/8 (TTL is 1 and so the packet will be dropped at the next-hop)

  5. me@here.com
    April 4th, 2015

    I’m having trouble comprehending WHY Q5’s E would ever HAPPEN.

    I get that …if the show ip route was sending traffic THROUGH the GRE to get to the destination IP of the other end of the tunnel, that it would encounter recursive routing errors…I get it…..it refers to itself……but WHY would someone DO THAT?

    is this an effect of peer’ing your GRE to loopbacks?

  6. Antony
    August 14th, 2015

    Hi, Guys.
    I can send the explanation in PDF if you need.

  7. Antony
    August 14th, 2015

    The %TUN-5-RECURDOWN: Tunnel0 temporarily disabled due to recursive routing error message means that the generic routing encapsulation (GRE) tunnel router has discovered a recursive routing problem. This condition is usually due to one of these causes:
    Reference: http://www.cisco.com/c/en/us/support/docs/ip/enhanced-interior-gateway-routing-protocol-eigrp/22327-gre-flap.html

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