[Free] 2018(Jan) EnsurePass Testking Juniper JN0-643 Dumps with VCE and PDF 151-160

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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: 151 – (Topic 2)

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Referring to the exhibit, the RPs are set up for anycast. Multicast traffic is currently flowing from the source to the receivers.

Which statement is true when RP2 goes down?

  1. Multicast traffic is interrupted for receiver 2 until RP2 recovers.

  2. Receiver 2 needs to rejoin RP1.

  3. Multicast traffic flows uninterrupted.

  4. RP1 starts sending multicast traffic to receiver 2.

Answer: C

Question No: 152 – (Topic 2)

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Referring to the exhibit, you want router A to have an EBGP peering with router C. They are both connected through router B, which does not have BGP running, and has static routes configured.

What must be configured in the EBGP peer groups on routers A and C to make this connection possible?

  1. MED

  2. multihop

  3. multipath

  4. next-hop

Answer: B

Question No: 153 – (Topic 2)

Which statement is true about LLDP?

  1. It allows you to split a broadcast domain into multiple isolated broadcast subdomains.

  2. It dynamically manages VLAN registration in a LAN.

  3. It maintains a separate spanning-tree instance for each VLAN.

  4. It is a Layer 2 protocol that facilitates network and neighbor discovery.

Answer: D

Question No: 154 – (Topic 2)

Which two statements about the voice VLAN feature are correct? (Choose two.)

  1. It can be used to separate untagged data and VLAN tagged VoIP traffic into different VLANs on an access port.

  2. It can be used to assign VoIP traffic into a CoS forwarding class.

  3. It can be used to separate untagged data and VLAN tagged VoIP traffic into different VLANs on a trunk port.

  4. It can be used to apply a policer to VoIP traffic.

Answer: A,B

Question No: 155 – (Topic 2)

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Referring to the exhibit, USER1 wants to only receive multicast traffic for group 225.0.0.1 and USER2 wants to only receive multicast traffic for group 225.0.0.2. Both users are connected to an EX Series switch and are receiving unwanted multicast traffic.

What will resolve the problem?

  1. Create IGMP static groups with the exclude parameter.

  2. Enable the IGMP immediate-leave parameter.

  3. Use PIM sparse mode instead of PIM dense mode.

  4. Enable IGMP snooping.

Answer: D

Question No: 156 – (Topic 2)

Which multicast group is used for all PIM routers?

A. 224.0.0.22

B. 224.0.0.13

C. 224.0.0.1

D. 224.0.0.2

Answer: B

Question No: 157 – (Topic 2)

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Referring to the exhibit, a customer noticed that the 802.1Q-tunneled packets received on SwitchB are being dropped.

What is causing this problem?

  1. There is an ether-type mismatch on SwitchA and SwitchB.

  2. Customer VLANs are not configured on SwitchB.

  3. The SwitchB interface connecting to SwitchA is not a trunk port.

  4. Customer VLANs are mismatched on both switches.

Answer: A

Question No: 158 – (Topic 2)

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Referring to the exhibit and based on the output below from Sw-1 and Sw-2, which statement is true?

Sw-1gt; show spanning-tree mstp configuration MSTP information

Context identifier : 0 Region name : juniper Revision : 1

Configuration digest : 0x9357ebb7a8d74dd5fef4f2bab50531aa

MSTI Member VLANs 0 0-9,11-19,21-4094

1 10

2 20

Sw-2# run show spanning-tree mstp configuration MSTP information

Context identifier : 0 Region name : juniper Revision : 1

Configuration digest : 0x387b5f2ea2394b14e091f0921ee7b9a8

MSTI Member VLANs

0 0-9,11-14,16-19,21-4094

1 10,15

2 20

  1. There will be only one MSTI 2 root bridge.

  2. There will be only one CST root bridge.

  3. Sw-1 and Sw-2 are in different MSTP regions.

  4. There will be only one CIST root bridge.

Answer: C

Question No: 159 – (Topic 2)

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[edit protocols vstp] #39;vlan all#39;

Cannot configure VSTP on all VLANs when more than 253 VLANs are configured.

Configure vstp vlan-group along with STP or RSTP to cover all VLANs [edit protocols]

#39;vstp#39;

Failed to configure vstp on all vlans error: configuration check-out failed

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What are two reasons for the commit error shown in the exhibit? (Choose two.)

  1. The set protocols vstp vlan all configuration is not supported.

  2. There are more than 253 VLANs configured on the switch.

  3. MSTP is not configured with VSTP.

  4. STP or RSTP is not configured along with VSTP on the switch.

Answer: A,B

Explanation: http://kb.juniper.net/KB18259

Question No: 160 – (Topic 2)

Which connection method do OSPF routers use to communicate with each other?

  1. IP protocol number 89

  2. TCP port 179

  3. UDP port 179

  4. IP protocol number 6

Answer: A

Explanation: http://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml

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