An ISP Is Implementing end-to-end fault monitoring for a customer based on the IEEE 802.3ah standard. The solution must detect when 15 or more corrupted Ethernet packets arrive within 10 ms and stop propagating traffic through the ISP backbone network or to the customer side. Which configuration must the ISP engineer apply?

1. A. ethernet oam link-monitoring enableethernet oam link-monitor crc-errors ingress time-window 10ethernet oam link-monitor crc-errors ingress threshold high 15 ethernet oam link-monitor crc-errors egress time-window 10 ethernet oam link-monitor crc-errors egress threshold high 15 ethernet oam link-monitor high-threshold action shutdown-interface
2. B. ethernet oam link-monitoringethernet oam link-monitor receive-crc window 15 ethernet oam link-monitor receive-crc threshold high 10ethernet oam link-monitor high-threshold action disable-interface
3. C. ethernet oamethernet oam link-monitor receive-crc window 10 ethernet oam link-monitor receive-crc threshold high 15 ethernet oam link-monitor transmit-crc window 10 ethernet oam link-monitor transmit-crc threshold high 15ethernet oam link-monitor high-threshold action errordisable-interface
4. D. ethernet oam link-monitoring global enableethernet oam link-monitor receive crc-errors period 15 ethernet oam link-monitor receive crc-errors limit 15 ethernet oam link-monitor transmit crc-errors period 10 ethernet oam link-monitor transmit crc-errors limit 15 ethernet oam link-monitor limit action error-disable interface

Correct Answer: C

Refer to the exhibit.

CE1 and CE2 require connectivity to the internet through the ISP connected to PE3 What should an engineer configure to complete this task?

1. A. PE2 must be configured to serve as a route reflector for PE3 routes learned from the interne
2. B. PE2 then shares the routes with CE1 and CE2.
3. C. CE1 and CE2 must be configured with a route distinguisher in the PE1 VRF that dynamically imports the route from the internet.
4. D. CE1 and CE2 must be configured to use a static default route with a next-hop of PE3 to reach internet routes.
5. E. PE1 must be configured with an import route target in the CE1 VRF that matches the export route target for the internet VRF on PE3.

Correct Answer: A

A network administrator is planning a new network with a segment-routing architecture using a distributed control plane. How is routing information distributed on such a network?

1. A. Each segment is signalled by an SR controller, but each segment makes Its own steering decisions based on SR policy.
2. B. Each segment is signalled by MPLS, and each segment makes steering decisions based on the routing policy pushed by BGP.
3. C. Each segment is signalled by an SR controller that makes the steering decisions for each node.
4. D. Each segment is signalled by a compatible routing protocol and each segment makes its own steering decisions based on SR policy.

Correct Answer: D
https://www.cisco.com/c/en/us/support/docs/multiprotocol-label-switching-mpls/mpls/215215-segment-routing-

Refer the exhibit.

Users on a network connected to router R3 report slow speeds when they connect to the server connected to R2. After analyzing traffic on the network, a network engineer identified congestion on the link between R2 and R3 as the cause. Which QoS service must the engineer implement to drop traffic on the link when it exceeds a configured threshold?

1. A. first-in, first-out
2. B. traffic shaping
3. C. class-based weighted fair queueing
4. D. traffic policing

Correct Answer: D
https://www.cisco.com/c/en/us/support/docs/quality-of-service-qos/qos-policing/19645-policevsshape.html

Refer to the exhibit.

Router 4 is added to the network and must be in the same area as router 1. Which NET should the engineer assign?

1. A. 49.0001.0000.0000.0004.00
2. B. 49.0111.0000.0000.0001.00
3. C. 49.0011.0000.0000.0003.00
4. D. 49.0011.0000.0000.0002.00

Correct Answer: C