Refer to the exhibit.

A network engineer is configuring a new router for iBGP to improve the capacity of a growing network. The router must establish an iBGP peer relationship with its neighbor. The underlay network is already configured with the correct IP addresses. Which step should the engineer apply to complete this task?

1. A. Implement multicast routing on the router to support BGP hellos.
2. B. Configure the AS number for the router to share with its iBGP peers.
3. C. Configure the new router as an iBGP route reflector to support multiple iBGP peers.
4. D. Activate the BGP peers under the correct address family on the router.

Correct Answer: D

A network engineer Is implementing a QoS policy for outbound management traffic classification and marking on a CPE device with these requirements:
• Management protocols must be marked with DSCP AF class 2 w4h low drop probability.
• Monitoring protocols must be marked with DSCP AF class 1 with low drop probability.
• All remaining traffic must be marked with a DSCP value of 0.
Which configuration must the engineer implement to satisfy the requirements?
A)

B)

C)

D)

1. A. Option A
2. B. Option B
3. C. Option C
4. D. Option D

Correct Answer: C
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus1000/sw/4_0/qos/configuration/guide/nexus10

An engineer is implementing IGMP with SSM on a multicampus network that supports video streaming. Which task must the engineer perform as part of the process?

1. A. Configure the network to use IGMPv3.
2. B. Configure the network to use bidirectional PIM.
3. C. Configure an RP that uses static assignments only.
4. D. Configure the network to use the PIM bsr-candidate

Correct Answer: A

How does Cisco MPLS TE use OSPF extensions to allow for optimized transit between a headend router and a destination router?

1. A. Router LSAs share router link advertisements to each router within the MPLS environment so that tunnels can be built bidirectionally.
2. B. ASBR Summary LSAs share OSPF domain information so that the two routers know how to reach each other during tunnel setup.
3. C. Network LSAs share RSVP information to build the tunnel between the two routers.
4. D. Opaque LSAs calculate and establish unidirectional tunnels that are set according to the network constraint.

Correct Answer: D
Cisco MPLS TE uses OSPF extensions to allow for optimized transit between a headend router and a destination router by utilizing Opaque LSAs. Opaque LSAs allow for the calculation and establishment of unidirectional tunnels that are set according to the network constraint. The tunnels are built bidirectionally by utilizing Router LSAs, which share router link advertisements to each router within the MPLS environment. ASBR Summary LSAs are also used to share OSPF domain information so that the two routers know how to reach each other during tunnel setup. Furthermore, Network LSAs are used to share RSVP information which is necessary for setting up the tunnel between the two routers.

Refer to the exhibit.

A network engineer is configuring router RB to secure BGP advertisements against route hijacking activity. RB must validate all prefixes that it receives from origin AS 200 before installing them in the BGP route table. Which configuration meets the requirement?

1. A. RB(config)# router bgp 100RB(config-router)# address-family ipv4 unicast RB(config-router-af)# bgp bestpath origin-as use validity
2. B. RB(config-bgp)# router bgp 100RB(config-bgp)# bgp origin-as validation signal ibgp RB(config-bgp)# bgp bestpath origin-as allow invalid
3. C. RB(config-bgp)# router bgp 100RB(config-bgp)# bgp origin-as validation time off
4. D. RB(config)# router bgp 100RB(config-router)# address-family ipv4 unicast PB(config-router-af)# bgp origin-as validation enable

Correct Answer: C