[Free] 2018(Jan) EnsurePass Testking Juniper JN0-643 Dumps with VCE and PDF 191-200

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2018 Jan Juniper Official New Released JN0-643
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Enterprise Routing and Switching, Professional (JNCIP-ENT)

Question No: 191 – (Topic 3)

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Referring to the exhibit, what is the correct RPF path toward the multicast source from R6?

A. R6-R5

B. R6-R7-R4-R5

C. R6-R4-R5

D. R6-R4-R3-R2-R5

Answer: A

Question No: 192 – (Topic 3)

Which three attributes must a BGP update contain? (Choose three.)

  1. next-hop

  2. MED

  3. origin

  4. AS-path

  5. local preference

Answer: A,C,D

Question No: 193 – (Topic 3)

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In the exhibit, a customer wants to configure an EBGP connection to two different routers in a neighboring autonomous system. The goal of this configuration is to use per-prefix load balancing across both EBGP links.

Which configuration accomplishes this goal?

  1. {master:0}[edit]

    user@router# show protocols bgp group External {

    multihop;

    peer-as 65532;

    neighbor 10.10.2.2;

    neighbor 10.20.2.2;

    }

  2. {master:0}[edit]

    user@router# show protocols bgp group External {

    multipath;

    peer-as 65532;

    neighbor 10.10.2.2;

    neighbor 10.20.2.2;

    }

  3. {master:0}[edit]

    user@router# show protocols bgp group External {

    multihop;

    local-address 192.168.2.1;

    peer-as 65532;

    neighbor 10.10.2.2;

    neighbor 10.20.2.2;

    }

    user@router# show routing-options static {

    route 0.0.0.0 next-hop [ 10.10.2.2 10.20.2.2 ];

    }

    autonomous-system 65432;

  4. {master:0}[edit]

user@router# show protocols bgp group External {

multihop;

local-address 192.168.2.1;

peer-as 65532; multipath;

neighbor 10.10.2.2;

neighbor 10.20.2.2;

}

user@router# show routing-options static {

route 0.0.0.0 next-hop [ 10.10.2.2 10.20.2.2 ];

}

autonomous-system 65432;

Answer: B

Question No: 194 – (Topic 3)

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Given the topology in the exhibit, which two statements related to the Q-in-Q tunneling implementation are true? (Choose two.)

  1. The ge-0/0/0 interface on Provider Bridge A must be configured as an access port.

  2. The ge-0/0/0 interface on Provider Bridge A must be configured as a trunk port.

  3. Provider Bridge B will make forwarding decisions using a MAC table associated with VLAN ID 100.

  4. Provider Bridge B will make forwarding decisions using a MAC table associated with VLAN ID 200.

Answer: A,D

Question No: 195 – (Topic 3)

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In the exhibit, the routers in the network have a default PIM sparse mode configuration. R2 shows that R1 is the RPF next hop for the source, and R3 is the RPF next hop for the RP. Host1 is currently receiving multicast traffic for group 231.1.1.1. Host2 has come online and is attempting to join group 232.1.1.1. R2 has just received an IGMP message with the source and group addresses.

Which step happens next so that Host2 can join the multicast group?

  1. R2 sends a PIM join upstream towards R3 to join the shared tree.

  2. R2 sends a PIM join upstream towards R3 to join the source tree.

  3. R2 sends a PIM join upstream towards R1 to join the shared tree.

  4. R2 sends a PIM join upstream towards R1 to join the source tree.

Answer: D

Question No: 196 – (Topic 3)

Which configuration parameter causes a router to ignore router ID and peer ID from the BGP route selection algorithm?

  1. multihop

  2. as-path loops

  3. multipath

  4. next-hop self

Answer: C

Question No: 197 – (Topic 3)

Which CoS component helps with TCP global synchronization problems?

  1. WRR with rewrite rules

  2. WRED with drop profiles

  3. tail drop profiles with a behavior aggregate classifier

  4. exact term with a scheduler

Answer: B

Question No: 198 – (Topic 3)

You notice that a number of IGMP leave group messages are passing through a BMA network and are impacting the network#39;s performance.

What would you do to resolve this issue without affecting multicast traffic?

  1. Apply an import policy to control leave group messages.

  2. Suppress group-specific queries.

  3. Suppress generic IGMP queries.

  4. Enable promiscuous-mode in IGMP.

Answer: B

Question No: 199 – (Topic 3)

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Based on the exhibit, which statement about the Layer 2 topology is true?

  1. A port on switch 3 or switch 4 towards the CST root (switch 6) is blocking traffic.

  2. A total of 64 MST instances for MST region A and region B can be configured.

  3. MSTI BPDUs are exchanged between MST regions and the CST root bridge.

  4. IST BPDUs are exchanged only between switches 1 and 2, and between switches 6 and 7.

Answer: A

Question No: 200 – (Topic 3)

A Layer 2 transparent firewall separates two OSPFv3 routers.

For the two OSPFv3 routers to form an adjacency, which protocol must be permitted on the firewall?

  1. IPv4 protocol 89

  2. IPv6 protocol 89

  3. TCP port 89

  4. UDP port 89

Answer: B

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