[Free] 2018(Mar) Dumps4cert Testinsides Juniper JN0-343 Dumps with VCE and PDF 151-160

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Juniper Networks Certified Internet Specialist (JNCIS-ENT)

Question No: 151 – (Topic 2)

You want several different subnets within your enterprise network to be reachable from outside the enterprise network. Your edge router must share a single route advertisement about these subnets with external devices. If one of the subnets is unavailable, your edge router should drop any traffic destined to that subnet. Which type of route, configured on the edge device with default behavior, accomplishes these objectives?

  1. an aggregate route

  2. a generated route

  3. a primary contributing route

  4. an OSPF route

Answer: A

Question No: 152 – (Topic 2)

Which two statements about GRE tunnels are true? (Choose two.)

  1. GRE can be used to tunnel non-IP protocols, such as IPX.

  2. GRE can provide encrypted communication.

  3. GRE adds overhead of 16 bytes per packet.

  4. GRE can be used to tunnel IPv6 traffic.

Answer: A,D

Question No: 153 – (Topic 2)

Which two statements are true regarding BPDUs of spanning tree protocols? (Choose two.)

  1. Configuration BPDUs function as keepalives in STP and RSTP.

  2. BPDUs are sent by the designated bridge but not the backup bridge on shared segments.

  3. Configuration BPDUs are sent by both switches on point-to-point connections.

  4. Configuration BPDUs are not sent out interfaces configured as edge ports.

Answer: C,D

Question No: 154 – (Topic 2)

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On Switch-1, all configured interfaces belong to the default VLAN. Based on the topology and bridge table shown in the exhibit, which two operations will Switch-1 perform if it receives a frame sent by User A with a destination MAC address of 00:26:88:02:74:89? (Choose two.)

  1. Switch-1 will flood the frame out all switch ports that belong to the default VLAN.

  2. Switch-1 will flood the frame out all switch ports except ge-0/0/6.0.

  3. Switch-1 will forward the frame out ge-0/0/9.0.

  4. Switch-1 will update its bridge table with a new MAC entry for the device associated with User

Answer: B,D

Question No: 155 – (Topic 2)

You are viewing the Ethernet switching table and notice that a previous entry is no longer listed. What is a valid reason for an entry to be removed from the table?

  1. The learning limit is exceeded.

  2. The filtering threshold is exceeded.

  3. The MAC aging timer expired.

  4. The ARP aging timer expired.

Answer: C

Question No: 156 – (Topic 2)

Which feature will cause the port to transition into a blocking state when BPDUs are no longer being received?

  1. RSTP

  2. BPDU protection

  3. loop protection

  4. root protection

Answer: C

Question No: 157 – (Topic 2)

Which two configurations are valid methods for associating a VLAN with an interface on EX Series switches? (Choose two.)

  1. {master:0}[edit interfaces] user@ex# show

    ge-0/0/4 { unit 0 {

    family ethernet-switching { vlan {

    members v100;

    }

    }

    }

    }

  2. {master:0}[edit interfaces ge-0/0/4]

    user@ex# show unit 0 {

    family ethernet-switching { vlan v100;

    }

    }

  3. {master:0}[edit interfaces ge-0/0/4] user@ex# show

    vlan-tagging; unit 0 {

    family ethernet-switching { vlan v100;

    }

    }

  4. {master:0}[edit vlans] user@ex# show

v100 {

vlan-id 100; interface { ge-0/0/4.0;

}

}

Answer: A,D

Question No: 158 – (Topic 2)

A switch has just come online and currently has no learned unicast entries in its bridge table. Which two statements regarding this switch and its operations are true? (Choose two.)

  1. All frames received through a switch port will be flooded out all other switch ports belonging to the same VLAN.

  2. All broadcast frames received through a switch port will be flooded out all switch ports, regardless of the VLAN.

  3. The switch will dynamically add MAC entries to the bridge table for the destination MAC address listed in received frames.

  4. The switch will dynamically add MAC entries to the bridge table for the source MAC address listed in received frames.

Answer: A,D

Question No: 159 – (Topic 2)

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What is the purpose of the configuration shown in the exhibit?

  1. This configuration causes all routes for directly connected interfaces to be installed in oth the inet.0 routing table and the inet.0 routing table for the blue routing instance.

  2. This configuration causes all routes for directly connected interfaces that are assigned to the blue routing instance to be installed in both the inet.0 routing table and the inet.0 routing table for the blue routing instance.

  3. This configuration causes all routes from inet.0 to also be installed in blue.inet.0.

  4. This configuration allows you to specify my-rib-group in a static route#39;s next-table statement to cause the static route to first try to resolve the address in inet.0 and then in blue.inet.0.

Answer: A

Question No: 160 – (Topic 2)

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As shown in the exhibit, Switch-3 receives a superior BPDU from Switch-2 over the ge- 0/0/10.0 interface. Which two statements are correct? (Choose two.)

  1. Switch-2#39;s ge-0/0/10.0 port assumes the backup role and blocking state.

  2. Switch-3#39;s ge-0/0/10.0 port assumes the designated role and forwarding state.

  3. Switch-2#39;s ge-0/0/10.0 port assumes the designated role and forwarding state.

  4. Switch-3#39;s ge-0/0/10.0 port assumes the alternate role and blocking state.

Answer: C,D

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