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Question 1:

An engineer is troubleshooting L3VPN traffic loss over the MPLS-enabled core network when new core links were enable. Assuming that the IGP is properly configured, which issue causes a temporary data flow blackholing when the IGP and LDP reconverges?

A. MPLS-TE tunnels without LDP adjacencies are used over the new links black-holing the traffic before the LDP label exchange is completed

B. MP-BGP sessions between PE and RR routers require extra time to reconverge than the underlying IGP

C. IP packets are forwarded as soon as routes are learned over a new IGP adjancey before the label exchange happens over the new links

D. LDP is a Layer 2 protocol forwarding Label packets before the IGP reconverged

Correct Answer: C

Question 2:

Refer to the exhibit. A service provider uses RSVP-TE instead of LDP to exchange labels in the MPLS network. Different path must be defined per type of traffic. Which solution meet this requirement?





E. MPLS TE affinity attributes

Correct Answer: C

Question 3:

Which three OSPF pieces of information must between routers in order to establish an ospf neighborship? (Choose three)

A. Area ID

B. Hello interval and dead interval timer value

C. LSA refresh period timer value

D. Priority value

E. Stub flag

F. Process ID

Correct Answer: ABE

Question 4:

Which protocol in the IPv6 stack does the MLD protocol use to carry its messages?





Correct Answer: E

Question 5:

Refer to the exhibit PIM sparse mode is implemented in the network RPF succeeds under which condition?

A. The RPF check succeeds for the highest DR priority for the PIM router

B. The RPF check succeeds for both PIM neighbors, and traffic load-balances across both neighbors

C. The RPF check succeeds for the next hop whose router ID is the highest

D. The RPF check succeeds for the highest interface IP address for the PIM router

Correct Answer: D

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Question 6:

Refer to the exhibit the prefix is flapping when PE1 is flapping. Which action can fox this issue?

A. On PE2, allow only redistribution from BGP into IS-IS on PE3, allow only redistribution from IS-IS into BGP

B. On PE2 and PE3 reconfigure redistribute BGP into IS-IS using the metric-type external parameter

C. configure a sham link between PE2 and PE3

D. configure all IS-IS instances as level-1-only

Correct Answer: A

Question 7:

What type of IPv6 address is the address FF05::2:260:8F908?

A. Multicast temporary site local

B. Multicast permanent node link local

C. Multicast permanent site local

D. Multicast permanent link local

Correct Answer: C

Question 8:

An support engineer has been tasked to protect an ISP infrastructure from the growing number of encrypted DDoS attacks. The solution should also validate the eBGP peering. Which solution accomplishes these goals?

A. BGP FlowSpec


C. BGP Route Dampening



Correct Answer: B

Question 9:

Refer to the exhibit. The requirements is to copy traffic from switch A and switch B and to send it to a probe connected to switch D across the routed network. Which technology meets this requirement?

A. NetFlow v5


C. NetFlow v9


Correct Answer: B

Question 10:

In multicast Inter-AS VPN context, which BGP attribute should you use to overcome the Option B limitation due to a rewritten originator next-hop address in the network.

A. weight

B. originator

C. connector

D. AS Path

Correct Answer: C

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