[Free] 2018(Jan) EnsurePass Pass4sure Juniper JN0-343 Dumps with VCE and PDF 361-370

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Juniper Networks Certified Internet Specialist (JNCIS-ENT)

Question No: 361 – (Topic 4)

Which statement describes how root protection protects your network?

  1. It dynamically modifies the STP bridge priority to the best value in your network.

  2. It ignores superior BPDUs from being accepted on a protected interface.

  3. It changes protected ports to the blocking state if they receive superior BPDUs.

  4. It is enabled on a switch and uses BPDUs to negotiate a better bridge priority than its neighbors.

Answer: C

Question No: 362 – (Topic 4)

– Exhibit –

[edit protocols bgp] user@router# show import in-protocol-level; export out-protocol-level; group ISPs {

type external;

import in-group-level; export out-group-level; neighbor 172.25.100.1 { import in-neighbor-level; peer-as 65505;

}

neighbor 172.25.200.1 { export out-neighbor-level; peer-as 65500;

}

}

– Exhibit –

Referring to the exhibit,

Ensurepass 2018 PDF and VCE

which import policy is applied to routes received from neighbor 172.25.200.1?

  1. policy in-protocol-level

  2. policy in-group-level

  3. policy in-neighbor-level

  4. policy out-neighbor-level

Answer: B

Question No: 363 – (Topic 4)

A network administrator would like to prevent certain network addresses from being part of the routing table.

Which Junos feature would be used to accomplish this task?

  1. prefix lists

  2. Martian addresses

  3. route maps

  4. static routes

Answer: B

Question No: 364 – (Topic 4)

What are two considerations for determining the master router in VRRP? (Choose two.)

  1. The router with a lower priority value.

  2. The router with a higher priority value.

  3. The router with the lowest IP address configured in the VRRP group.

  4. Any router that has the no-preempt configuration option set.

Answer: B,D

Question No: 365 – (Topic 4)

Ensurepass 2018 PDF and VCE

The switches shown in the exhibit were just powered on.

What is required to ensure that both of Switch B#39;s ports are in a forwarding state?

  1. Configure the bridge priority to 4k on Switch B.

  2. Configure Switch B#39;s ports to all be edge ports.

  3. Configure uplinkfast on both of Switch B#39;s ports.

  4. Configure uplinkfast on Switch A and Switch D.

Answer: A

Question No: 366 – (Topic 4)

Which two common scenarios will prevent an IS-IS adjacency from forming? (Choose two.)

  1. The interface MTU value is set lower than 1492.

  2. An IP address is not configured on the lo0 interface.

  3. There are mismatched Level 1 areas.

  4. There are mismatched Level 2 areas.

Answer: A,C

Question No: 367 – (Topic 4)

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Referring to the exhibit, a packet destined to 172.129.3.5 is sent from ISP X towards R1. Which statement describes how R1 handles the packet?

  1. It sends ICMP network unreachable messages back to the source.

  2. It forwards the packet towards Network A.

  3. It silently drops the packet and does not send a message back to the source.

  4. It forwards the packet towards Network C.

Answer: A

Question No: 368 – (Topic 4)

You have an Ethernet frame with an unknown destination address.

Which steps are required for the switch to process and forward the Ethernet frame?

  1. 1. The frame enters the ingress port and Packet Forwarding Engine (PFE).

    1. The ingress PFE performs the MAC address lookup, determines the egress PFE and port.

    2. The ingress PFE forwards the frame to the egress PFE.

    3. The egress PFE forwards the frame out the egress port towards the destination.

  2. 1. The frame enters the ingress port and PFE.

    1. The ingress PFE performs the MAC address lookup and determines the source MAC is unknown.

    2. The ingress PFE sends the header information to the RE, where the MAC is added.

    3. If the RE adds a new source MAC address to the bridge table, the newly added MAC entry is sent to all PFEs.

  3. 1. The frame enters the ingress port and PFE.

    1. The ingress PFE performs the MAC address lookup; the destination MAC belongs to the switch so the PFE performs a L3 lookup.

    2. The egress PFE forwards the packet out the egress port toward the destination.

  4. 1. The frame enters the ingress port and PFE.

  1. The ingress PFE performs the MAC address lookup, determines no match and replicates the frame to other PFEs and local ports on same broadcast domain.

  2. All other PFEs replicate the frame and forward those frames out all egress ports in the same broadcast domain.

    Answer: D

    Question No: 369 – (Topic 4)

    Ensurepass 2018 PDF and VCE

    You have two routers, R1 and R2, running OSPF in area 0. Router R1 is having problems with forming and adjacency with Router R2.

    Referring to the exhibit, which statement is correct about the OSPF configuration in the Router R1 trace output?

    1. Router R1 has the wrong OSPF area configured.

    2. Router R2 has the wrong OSPF area configured.

    3. Router R1 has the wrong interface configured for OSPF.

    4. Router R2 has the wrong interface configured for OSPF.

Answer: B

Question No: 370 – (Topic 4)

A network administrator is configuring IS-IS on a router using interface ge-0/0/3. The router being configured should only be able to form IS-IS adjacencies with Level 1 routers in its own area.

Which command correctly accomplishes this requirement?

  1. set protocols isis interface ge-0/0/3.0 level 1 enable

  2. set protocols isis interface ge-0/0/3.0 level 2 disable

  3. set interfaces interface ge-0/0/3.0 isis level 1 enable

  4. set interfaces interface ge-0/0/3.0 isis level 2 disable

Answer: B

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