Refer to the exhibit.

An engineer working for private Service Provider with employee id: 3948:11:613 is configuring the BGPsec framework. Which two conditions must the engineer take into account? (Choose two.)

• A.BGPsec uses IPsec tunnel for security.
• B.The BGPsec framework secures the AS path.
• C.In BGPsec. all route advertisements are given an expiry time by the originator of the route.
• D.Private keys are part of the router key pair used to sign route updates.
• E.In BGPsec. route advertisements are not given an expiration time by the originator of the route.

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Refer to the exhibit.

A network engineer with an employee id: 3812:12:993 has started to configure router R1 for IS-IS as shown. Which additional configuration must be applied to configure the IS-IS instance to advertise only network prefixes associated to passive interfaces?

• A.Option B
• B.Option A
• C.Option C
• D.Option D

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Refer to the exhibit. Which statement supports QPPB implementation?

• A.QoS policies are identified in the MPLS forwarding table
• B.QoS policies rely exclusively on BGP attributes to manipulate traffic
• C.QoS policies use BGP to gain full coverage on the network.
• D.QPPB policies affect only egress traffic

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Refer to the exhibit. The network engineer is performing end-to-end MPLS path testing with these conditions:
- Users must perform MPLS OAM for all available same-cost paths from R1 to R4.
- Traceroute operations must return all of the next-hop IP details.
Which configuration meets these requirements?

• A.traceroute mpls ipv4 10.10.10.4 255.255.255.255 verbose
• B.traceroute mpls multipath ipv4 10.10.10.4 255.255.255.255 verbose
• C.traceroute mpls multipath ipv4 10.10.10.4 255.255.255.255
• D.traceroute mpls ipv4 10.10.10.4 255.255.255.255 source 10.10.10.1

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The network operation center is receiving an excessive number of BFD alerts.
This is due to recently configured high-speed links that result in BGP session teardown.
Engineers tried to modify the BFD timers, but no improvement was noticed.
Which action maximizes network stability?

• A.enable the BFD Dampening feature
• B.fully remove the BFD configuration
• C.modify the IGP hello timers
• D.enable the BGP Dampening feature

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