[Free] 2018(May) EnsurePass Braindumps Cisco 400-101 Dumps with VCE and PDF 291-300

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CCIE Routing and Switching (v5.1)

Question No: 291 – (Topic 2)

Which two statement about BPDU guard are true ?

1. BPDU guard can be used to prevent an invalid BPDU from propagating through the network.

2. BPDU guard can be used to prevent an access port from participating in the spanning tree in the service provider environment.

3. The global configuration command spanning-tree portfast bpduguard default shuts down interface that are in the PortFast-operational state when a BPDU is received on that port.

4. BPDU guard can be used to protect the root port.

5. The interface configuration command spanning-tree portfast bpduguard enable shuts down only interface with PortFast enabled when a BPDU is received.

Answer: B,C

Question No: 292 – (Topic 2)

What is the EUI 64-bit address corresponding to MAC address 0032F4C57781?

A. FFFE0032F4C57781 B. 0032F4FFFEC57781 C. 0032F4C57781FFFE D. C57781FFFE0032F4

Answer: B

Question No: 293 – (Topic 2)

Refer to the exhibit.

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Which statement about the Rlmulticastcast network environment is true?

1. . RPF builds the topology using the unicast data for source address 10.1.108.10.

2. A static mrouteis configured to point multicast traffic for 10.30.30.32 through Ethernet 1/0.

3. RPF uses the OSPF 100 table for source address 10.1.108.10.

4. The default mroute uses Tunnel 10 as the next hop for 10.1.108.10.

Answer: B

Question No: 294 – (Topic 2)

Refer to the exhibit.

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What is the effect on the network when you apply these configuration to RI and R2?

1. Asymmetric routing occurs because the bandwidth and delay K value settings are mismatched.

2. The interface bandwidth and delay settings adjust automatically to match the new metric settings

3. The neighbor adjacency between R1 and R2 temporarily resets and then reestablishes itself.

4. R1 and R2 fail to form a neighbor adjacency.

Answer: D

Question No: 295 – (Topic 2)

Refer to the exhibit.

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The Main 1 and Branch 1 switches are connected directly over over an MPLS pseudowire, and both runn UDLD. After router B1 reloads because of a power failure, the pseudowire.

However the Branch 1 switch is unable to reach the Main 1 switch. Which two actions can you take to restore connectivity and problem from recurring? (Choose two)

1. Configure a backup pseudowire between the Main 1 and Branch I Switchs.

2. Issue the shutdown and no shutdown commands on the Branch 1 switch uplink to the B1 router only.

3. Configure a backup GRE tunnel between the Main I and Branch 1 switches.

4. Issue the shutdown and no shutdown commands on both the Branch 1 switch uplink to the B1 router and the Main 1 switch#39;s uplink to the M1 router

5. Enable errdisable recovery on both the Main I and Branch I switches.

6. Enable UDLD recovery on both the Main I and Branch I switches.

Answer: B,E

Question No: 296 – (Topic 2)

Refer to the exhibit.

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What is the PHB class on this?

1. EF

2. CS4

3. none

4. AF21

Answer: B

Question No: 297 – (Topic 2)

Which two OSPF network type require the use of a DR and BDR? {Choose two)

1. non-broadcast networks

2. point-to-point networks

3. point-to-point non-broadcast networks

4. broadcast networks

5. point-to-multipoint networks

Answer: A,D

Question No: 298 DRAG DROP – (Topic 2)

Drag each 0SPFv2 SA parameter on the left to its corresponding description on the right. Select and Place:

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Answer:

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Question No: 299 – (Topic 2)

Which statement about the RPF interface in a BIDIR-PIM network is true?

1. In a BIDIR-PIM network the RPF interface can be the interface that is used reach the PIM rendezvous or the interface that is used to reach the source.

2. In a BIDIR-PIM network the RPF interface is always the interface that is used to reach the source.

3. There is no RPF interface concept in BIDIR-PIM networks

4. In a BIDIR network the RPF interface is always the interface that is used to reach the PIM rendezvous point.

Answer: D

Question No: 300 DRAG DROP – (Topic 2)

Drag each NTP command on the left to its effect on the right.

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Answer:

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