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QUESTION NO:3
A new backup connection is being deployed on a remote site router. The stability of the connection
has been a concern. In order to provide more information to EIGRP regarding this interface, you
wish to incorporate the “reliability” cost metric in the EIGRP calculation with the command metric
weights 1 0 1 0 1.
What impact will this modification on the remote site router have for other existing EIGRP
neighborships from the same EIGRP domain?
A. Existing neighbors will immediately begin using the new metric.
B. Existing neighbors will use the new metric after clearing the EIGRP neighbors.
C. Existing neighbors will resync, maintaining the neighbor relationship.
D. All existing neighbor relationships will go down.
Answer: D
Explanation:
QUESTION NO:15
Which three options are considered in the spanning-tree decision process? (Choose three.)
A. lowest root bridge ID
B. lowest path cost to root bridge
C. lowest sender bridge ID
D. highest port ID
E. highest root bridge ID
F. highest path cost to root bridge
Answer: A,B,C
Explanation:
Configuration bridge protocol data units (BPDUs) are sent between switches for each port.
Switches use s four step process to save a copy of the best BPDU seen on every port. When a
port receives a better BPDU, it stops sending them. If the BPDUs stop arriving for 20 seconds
(default), it begins sending them again.
Step 1 Lowest Root Bridge ID (BID)
Step 2 Lowest Path Cost to Root Bridge
Step 3 Lowest Sender BID
Step 4 Lowest Port ID
Reference
Cisco General Networking Theory Quick Reference Sheets
QUESTION NO:2
A branch router is configured with an egress QoS policy that was designed for a total number of
10 concurrent VOIP calls.
Due to expansion, 15 VOIP calls are now running over the link, but after the 14th call was
established, all calls were affected and the voice quality was dramatically degraded.
Assuming that there is enough bandwidth on the link for all of this traffic, which part of the QoS
configuration should be updated due to the new traffic profile?
A. Increase the shaping rate for the priority queue. B.
Remove the policer applied on the priority queue. C.
Remove the shaper applied on the priority queue. D.
Increase the policing rate for the priority queue.
Answer: D
Explanation:
QUESTION NO:30
What is the flooding scope of an OSPFv3 LSA, if the value of the S2 bit is set to 1 and the S1 bit is
set to 0?
A. link local
B. area wide
C. AS wide
D. reserved
Answer: C
Explanation:
The Type 1 router LSA is now link local and the Type 2 Network LSA is AS Wide
S2 and S1 indicate the LSA’s flooding scope. Table 9-1 shows the possible values of these two
bits and the associated flooding scopes.
Table 9-1 S bits in the OSPFv3 LSA Link State Type field and their associated flooding scopes
LSA Function Code, the last 13 bits of the LS Type field, corresponds to the OSPFv2 Type field.
Table 9-2 shows the common LSA types used by OSPFv3 and the values of their corresponding
LS Types. If you decode the hex values, you will see that the default U bit of all of them is 0. The S
bits of all LSAs except two indicate area scope. Of the remaining two, AS External LSAs have an
AS flooding scope and Link LSAs have a linklocal flooding scope. Most of the OSPFv3 LSAs have
functional counterparts in OSPFv2; these OSPFv2 LSAs and their types are also shown in Table
9-2.
Table 9-2 OSPFv3 LSA types and their OSPFv2 counterparts
Reference
http://www.networkworld.com/subnets/cisco/050107-ch9-ospfv3.html?page=1
QUESTION NO:52
Refer to the exhibit.
Which two statements are correct? (Choose two.)
A. The hexadecimal value of the number of packets that hit the access list is 0x723E6E12.
B. The access list has logging enabled.
C. The packet was discarded.
D. The command ip access-list logging hash-generation is enabled.
E. The Telnet connection is successfully set up.
Answer: B,D
Explanation:
QUESTION NO:33
Which two OSPF LSA types are new in OSPF version 3? (Choose two.)
A. Link
B. NSSA external
C. Network link
D. Intra-area prefix
E. AS domain
Answer: A,D
Explanation:
New LSA Types
OSPFv3 carries over the seven basic LSA types we’re familiar with from OSPFv2. However, the
type 1 and 2 LSAs have been re-purposed, as will be discussed in a bit. OSPFv3 also introduces
two new LSA types: Link and Intra-area Prefix.
Reference
http://packetlife.net/blog/2010/mar/2/ospfv2-versus-ospfv3/
QUESTION NO:18
Refer to the exhibit.
Which statement is correct about the prefix 160.0.0.0/8?
A. The prefix has encountered a routing loop.
B. The prefix is an aggregate with an as-set.
C. The prefix has been aggregated twice, once in AS 100 and once in AS 200.
D. None of these statements is true.
Answer: B
Explanation:
QUESTION NO:4
Refer to the exhibit.
R1 has an EBGP session to ISP 1 and an EBGP session to ISP 2. R1 receives the same prefixes
through both links.
Which configuration should be applied so that the link between R1 and ISP 2 will be preferred for
outgoing traffic (R1 to ISP 2)?
A. Increase local preference on R1 for received routes
B. Decrease local preference on R1 for received routes
C. Increase MED on ISP 2 for received routes
D. Decrease MED on ISP 2 for received routes
Answer: A
Explanation: Explanation
Local preference is an indication to the AS about which path has preference to exit the AS in order
to reach a certain network. A path with higher local preference is preferred more. The default value
of preference is 100.
Reference
http://www.cisco.com/en/US/tech/tk872/technologies_configuration_example09186a0080b82d1f.s
html?
referring_site=smartnavRD
QUESTION NO:48
Which IGMPv2 message contains a non-zero “Max Response Time”?
A. Membership Query
B. Membership Report
C. Membership Delay
D. Backward Compatible IGMPv1 Report Message
Answer: A
Explanation:
QUESTION NO:21
Refer to the exhibit.
A packet from RTD with destination RTG, is reaching RTB. What is the path this packet will take
from RTB to reach RTG?
A. RTB – RTA – RTG
B. RTB – RTD – RTC – RTA – RTG
C. RTB – RTF – RTE – RTA – RTG
D. RTB will not be able to reach RTG since the OSPF configuration is wrong.
Answer: C
Explanation:
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