[Free] 2018(Mar) Dumps4cert Testinsides Juniper JN0-343 Dumps with VCE and PDF 181-190

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Juniper Networks Certified Internet Specialist (JNCIS-ENT)

Question No: 181 – (Topic 2)

When two OSPF routers on a broadcast network are ready to exchange database descriptor packets, which router is responsible for setting the initial sequence number?

  1. the DR

  2. the BDR

  3. the router with the higher RID

  4. the router with the lower RID

Answer: C

Question No: 182 – (Topic 2)

You want your switch to disable an edge port when it receives spanning tree communications on that port. Which feature accomplishes this objective?

  1. RSTP edge port

  2. BPDU protection

  3. root protection

  4. switch protection

Answer: B

Question No: 183 – (Topic 2)

Why would you configure root protection?

  1. You want to protect the root bridge from receiving BPDUs on unauthorized interfaces.

  2. You want to protect your network from unwanted topology changes from a rogue switch attempting to become the root bridge.

  3. You want to avoid a broadcast storm that originates on the root bridge.

  4. You want to prevent unwanted user authentication to the root bridge by defining an acceptable source-address list for authorized access.

Answer: B

Question No: 184 – (Topic 2)

Which three parameters are used by the Junos OS to distinguish traffic flows for load balancing with load-balance per-packet configured? (Choose three).

  1. incoming interface

  2. destination address

  3. destination port

  4. source address

  5. source port

Answer: A,B,D

Question No: 185 – (Topic 2)

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Based on the topology and configurations shown in the exhibit, which two statements are true? (Choose two.)

  1. Switch-2#39;s ge-0/0/12.0 interface will assume the designated port role.

  2. Switch-1#39;s ge-0/0/8.0 interface will assume the designated port role.

  3. Switch-1#39;s ge-0/0/12.0 interface will assume the designated port role.

  4. Switch-3#39;s ge-0/0/8.0 interface will assume the designated port role.

Answer: A,D

Question No: 186 – (Topic 2)

Which two prerequisites does IS-IS need to operate? (Choose two.)

  1. IS-IS must be able to communicate between devices using IP.

  2. IS-IS must be able to communicate using CLNS.

  3. IS-IS must have a valid IP address configured on the loopback.

  4. IS-IS must have a valid CLNS address.

Answer: B,D

Question No: 187 – (Topic 2)

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You just applied the Layer 2 firewall filter shown in the exhibit to a port as an input filter to block traffic from a one source MAC address. After monitoring the port, you notice that all traffic ingressing that port has stopped flowing. What is the problem?

  1. The traffic is being blocked on the egress port. Another Layer 2 firewall filter must be applied on the port to allow this traffic.

  2. All other traffic is matching the default term and being discarded.

  3. The Layer 2 firewall filters will not work at the port level. It must be applied at the VLAN level.

  4. The from criterion must match on destination-mac-address and not source-mac- address.

Answer: B

Question No: 188 – (Topic 2)

Which two statements are true regarding the default VLAN in EX Series switches? (Choose two.)

  1. All switch ports not specifically assigned to a user-defined VLAN belong to the default VLAN.

  2. An administrator can change the VLAN ID of the default VLAN.

  3. An interface that is part of the default VLAN cannot carry tagged traffic.

  4. The show interface-command shows an asterisk (*) after the interface name if the

interface is part of default VLAN.

Answer: A,B

Question No: 189 – (Topic 2)

Which configuration excerpt is necessary to cause all traffic received on fe-0/0/0.0 to be routed to next-hop 10.1.1.1?

  1. interfaces { fe-0/0/0 {

    unit 0 { family inet {

    policy-route route-to-10.1.1.1; address 172.17.1.1/24;

    }

    }

    }

    }

    policy-options {

    policy-statement route-to-10.1.1.1 { term 1 {

    then {

    next-hop 10.1.1.1;

    }

    }

    }

    }

  2. interfaces { fe-0/0/0 {

    unit 0 { family inet { filter {

    input route-to-10.1.1.1;

    }

    address 172.17.1.1/24;

    }

    }

    }

    }

    firewall { family inet {

    filter route-to-10.1.1.1 {

    term 1 {

    then routing-instance to-10.1.1.1;

    }

    }

    }

    }

    routing-instances { to-10.1.1.1 {

    instance-type forwarding; routing-options {

    static {

    route 0.0.0.0/0 next-hop 10.1.1.1;

    }

    }

    }

    }

  3. interfaces { fe-0/0/0 {

    unit 0 { family inet { filter {

    input route-to-10.1.1.1;

    }

    address 172.17.1.1/24;

    }

    }

    }

    }

    firewall { family inet {

    filter route-to-10.1.1.1 { term 1 {

    then next-hop 10.1.1.1;

    }

    }

    }

    }

  4. interfaces { fe-0/0/0 {

unit 0 { family inet {

routing-instance to-10.1.1.1; address 172.17.1.1/24;

}

}

}

}

routing-instances { to-10.1.1.1 {

instance-type forwarding; routing-options {

static {

route 0.0.0.0/0 next-hop 10.1.1.1;

}

}

}

}

Answer: B

Question No: 190 – (Topic 2)

No user-defined configuration exists for the default VLAN. Which configuration is valid on EX Series switches?

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

    unit 0 {

    family ethernet-switching { port-mode trunk;

    vlan {

    members [ v4 v3 ];

    }

    native-vlan-id default;

    }

    }

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

    unit 0 {

    family ethernet-switching { port-mode trunk;

    vlan {

    members [ v4 default ];

    }

    }

    }

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

    unit 0 {

    family ethernet-switching { port-mode access;

    vlan {

    members [ v4 default ];

    }

    }

    }

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

unit 0 {

family ethernet-switching { port-mode access;

vlan {

members [ v4 Voice ];

}

}

}

Answer: A

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