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Question No. 1

An operations engineer identifies a device is receiving a section loss signal alarm for a SONET link. Which action does the engineer perform?

Answer: C

Question No. 2

Which MQC-based output queueing method is designed to support multiple traffic classes including VoIP traffic, mission-critical traffic, bulk traffic, interactive traffic and default class traffic?

Answer: D

Question No. 3

Unicast Reverse Path Forwarding (Urpf ) can work in the following modes:

Answer: B, C

Question No. 4

Which three security mechanisms are used to mitigate or protect against DoS attacks that are targeted at a router? (Choose three)

Answer: B, C, F

Question No. 5

On which two protocols is VNC based? (Choose two)

Answer: C, D

Question No. 6

A company is using a Layer 2 Frame Relay network. Which circuit emulation will a network engineer use to extend the customer Frame Relay network over the Service Provider backbone?

Answer: C

Question No. 7

Users are complaining of intermittent high packet loss for seconds at a time. The engineer troubleshooting the issue finds that a link is bouncing for millisecond at a time, causing the traffic path to re-converge onto a congested FastEthernet link. What can the engineer do to prevent this service-affecting re-convergence only in the case of momentary link bounces until the link can be repaired?

Answer: A

Question No. 8

In Multicast VPN (MVPN) implementations, which two of the following statements are regarding the Default MDT Group? (Choose two).

Answer: A, D

MVPN supports two MDT types:

*Default MDT—The default MDT is a permanent channel for PIM control messages and low-bandwidth streams between all PE routers in a particular multicast domain. All multicast traffic in the default MDT is replicated to every other PE router in the domain. Each PE router is logically seen as a PIM neighbor (one hop away) from every other PE router in the domain.

*Data MDT—Data MDTs are optional. If enabled, they are dynamically created to provide optimal paths for high-bandwidth transmissions, such as full-motion video, that do not need to be sent to every PE router. This allows for on-demand forwarding of high-bandwidth traffic between PE routers, so as to avoid flooding every PE router with every high-bandwidth stream that might be created.

Question No. 9

Which ADSL implementation type involves configuring the ATU-R PPP authentication information (Login and Password), Which provides per sessions Authentication, Authorization, and Accounting without requiring PPP client on each PC on the subscriber Side?

Answer: A

Question No. 10

Refer to the exhibit.

Refer to the exhibit. The Service Provider is deploying Internet service to its VRF customers by using vrf INTERNET. A dedicated firewall provides NAT functionally towards the Internet. Assume that IP address overlapping between VRFs is not an issue.

Which three configuration steps are required to add Internet service to the VRF customers? (Choose three.)

Answer: B, E, F

Question No. 11

Refer to the exhibit.

Refer to the exhibit. After the BGP TCP negotiation between Router A and Router B, what will be the value of the keep alive timer and the hold-down timer, respectively?

Answer: D

Question No. 12

A company is given a 20 Mbps bandwidth guarantee provided over a FastEthernet connection by an ISP. Which QoS technology should be used to ensure that traffic conforms to the 20 Mbps contract?

Answer: A

Question No. 13

Refer to the exhibit.

Refer to the exhibit. LDP session protection is enabled between all LDP adjacencies. Which impact occurs on the LDP session between CRS-P2 and CRS-P4 if the direct link between them goes down?

Answer: A

Question No. 14

GMPLS is based upon Non-Packet-based devices

Answer: A

Question No. 15

DSCP value “101110” looks like which IP Precedence value to non-DiffServ compliant devices?

Answer: D

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