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CCIE Routing and Switching (v5.1)

Question No: 151 – (Topic 2)

Which statement about NAT64 is true?

1. It can be used to translate an IPv6 network to another IPv6 network.

2. It uses one-to-one mapping between IPv6 addresses and IPv4 addresses.

3. It requires static address mapping between IPv6 addresses and IPv4 addresses.

4. It can be configured for stateless and stateful translation.

Answer: D

Question No: 152 – (Topic 2)

Which two authentication mechanisms are supported by SNMPv3 ?{Choose two)

1. SHA

2. username without password

3. username and password

4. DES

5. a community string

6. 265-bit AES

Answer: A,C

Question No: 153 – (Topic 2)

Which two statements about the STP dispute function are true? (Choose two)

1. It compares the downstream port states reported in received BPDUs.

2. The upstream switch uses received BPDUs to detect unidirectional link failures.

3. The downstream switch uses received BPDUs to detect unidirectional link failures.

4. When a designated port detects a conflict, it changes its role by reverting to a discarding state

Answer: A,B

Question No: 154 – (Topic 2)

Which two statements about the command distance bgp 90 60 120 are true?(Choose two)

1. The local distance it sets may conflict with the RIP administrative distan莽e

2. Implementing the command is a Cisco best practice

3. The internal distance it sets is preferred over the external distance

4. The internal distance it sets may conflict with the EIGRP administrative distance

5. The local distance it sets may conflict with the EIGRP administrative distance

6. The external distance it sets is preterred over the internal distance

Answer: A,C

Question No: 155 – (Topic 2)

What command can you enter to enable client autoconfiguration over an ISATAP tunnel?

1. tunnel mode ipv6ip isatap

2. no ipv6 nd ra suppress

3. ipv6 nd ra suppress

4. tunnel mode ipv6ip 6rd

Answer: B

Question No: 156 – (Topic 2)

Which two statements aretrue about control plane policing?(Choose two)

1. Access list that are used in po|1cies for control plane policing must not use the l g keyword

2. The log keyword can be used but the log-input keyword must not be used in policies for control plane policing

3. Packets denied by an explicit access control list entry do not progress to the next class

   in control plane policing

4. Control plane policing will affect only traffic that is destined to the route processor

Answer: A,C

Question No: 157 DRAG DROP – (Topic 2)

Select and Place the best match.

Answer:

Question No: 158 – (Topic 2)

Refer to the exhibit.

With BGP always-compare-med enabled, which BGP entry is installed in the RIB?

1. Entry 1 because it was installed first (oldest) in the BGP table.

2. Entry 1 because it has the best MED of the external routes.

3. Entry 2 because it has the lowest router ID.

4. Entry 3 because it has the lowest MED.

Answer: D

Question No: 159 – (Topic 2)

Which two message types allow PIM snooping to forward multicast traffic? (Choose two)

1. membership query messages

2. leave messages

3. bidirectional PIM DF election messages

4. Hello messages

Answer: C,D

Question No: 160 – (Topic 2)

Which marking field is used only as an internal marking within a router?

1. QOS Group

2. Discard Eligiblity

3. IP Precedence

4. MPLS Experimental

5. CoS

Answer: A

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