[Free] 2018(Mar) Dumps4cert Testinsides Juniper JN0-343 Dumps with VCE and PDF 411-420

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Juniper Networks Certified Internet Specialist (JNCIS-ENT)

Question No: 411 – (Topic 5)

You are asked to ensure that an unauthorized switch running spanning tree cannot be added to any edge port on your EX Series switch. The ports must discard any incoming spanning tree packets but the interface must continue to forward traffic.

What should you do to accomplish the behavior?

  1. Enable BPDU protection.

  2. Enable BPDU protection and use the drop feature.

  3. Enable root protection and use the drop feature.

  4. Enable root protection.

Answer: B

Question No: 412 – (Topic 5)

Which two statements are correct about how EX Series switches support STP and RSTP interoperability? (Choose two.)

  1. A switch running only STP accepts RSTP BPDUs and discards the RSTP-specific information.

  2. A switch running only STP discards RSTP BPDUs.

  3. A switch running RSTP accepts STP BPDUs and responds using STP BPDUs.

  4. A switch running RSTP accepts STP BPDUs and responds using RSTP BPDUs.

Answer: B,C

Question No: 413 – (Topic 5)

What are three extended BGP communities? (Choose three.)

A.

target:65000:65000

B.

domain-id:192.168.1.1:155

C. 172.16.90.100:888 D.

extend:454:350

E.

origin:172.16.100.100:100

Answer: A,B,E

Question No: 414 – (Topic 5)

You configured a GRE tunnel that traverses a path using default MTU settings. You want to ensure that packets are not dropped or fragmented.

In this scenario, what is the maximum packet size that would traverse the GRE tunnel?

A. 1524 B.

1500

C. 1476 D.

1400

Answer: C

Question No: 415 – (Topic 5)

You are advertising your network#39;s assigned prefixes to two upstream ISPs using BGP. You want incoming traffic to prefer ISP-A over ISP-B.

Which action would you take to accomplish this task?

  1. Set a higher local preference on the prefixes you announce to ISP-A.

  2. Using a routing policy, prepend your ASN information to the AS path attribute on prefixes you announce to ISP-B.

  3. Using a routing policy, prepend your ASN information to the AS path attribute on prefixes you announce to ISP-A.

  4. Set the MED value lower on prefixes you announce to ISP-A.

Answer: B

Question No: 416 – (Topic 5)

– Exhibit –

user@routergt; show ospf neighbor Address Interface State ID Pri Dead

66.129.12.2 ge-0/0/2.0 ExStart 66.129.12.2 128 37

– Exhibit –

What is the reason for the adjacency state shown in the exhibit?

  1. There is an authentication mismatch.

  2. There is a hello interval mismatch.

  3. There is an IP network mismatch.

  4. There is an interface MTU mismatch.

Answer: D

Question No: 417 – (Topic 5)

A link has failed in your IS-IS network.

Which type of PDU is triggered because of the failure?

  1. CSNP PDU

  2. PSNP PDU

  3. link-state PDU

  4. hello PDU

Answer: C

Question No: 418 – (Topic 5)

Which bridging mechanism is used to obtain the MAC addresses of nodes on the network?

  1. listening

  2. aging

  3. learning

  4. filtering

Answer: C

Question No: 419 – (Topic 5)

– Exhibit –

{master:0}

user@switchgt; show spanning-tree interface Spanning tree interface parameters for instance 0

Interface Port ID Designated Designated Port State Role port ID bridge ID Cost

ge-0/0/1.0 142:519 142:519 0.002688027490 10000 BLK ALT (Root-Incon)

ge-0/0/2.0 142:520 142:520 4128.0019e2516580 10000 FWD DESG

ge-0/0/3.0 142:521 142:521 4128.0019e2516580 10000 FWD DESG

– Exhibit –

Referring to the exhibit, which statement is correct about the ge-0/0/1 interface?

  1. It has transitioned to the loop-inconsistent state.

  2. It is root protected and has received a superior BPDU.

  3. It has transitioned to a blocking state due to BPDU protection.

  4. It is normally in blocking mode.

Answer: B

Question No: 420 – (Topic 5)

Which statement describes the flooding bridging mechanism when it receives traffic destined to an unknown MAC address?

  1. The switch will discard the traffic and send a destination unreachable message.

  2. The switch will clear the bridging table and forward traffic out all ports.

  3. The switch will silently discard the traffic.

  4. The switch will forward the traffic out all ports.

Answer: D

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