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Juniper JN0-649 Exam Practice Questions (P. 4)

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Question #16
Click the Exhibition button.
A BGP network has been designed to provide resiliency and redundancy to a multihomed customer network.
Which two statements are correct in this scenario? (Choose two.)
  1. A
    Both the next hops will be used to forward traffic to R2.
  2. B
    A routing policy will be required to forward traffic to both next hops.
  3. C
    The TTL value of 1 is set to limit the scope of the EBGP session.
  4. D
    The ttl statement must be configured to accommodate peering to a loopback address of a directly connected peer.

Correct Answer:
BD

Question #17
Click the Exhibition button.
You are asked to troubleshoot voice quality issues on your newly implement VoIP network. You notice that the voice packets are being dropped. You have verified that the packets are correctly marked for expedited forwarding queue.
Referring to the exhibit, what must you configure to solve the problem?


  1. A
    You must configure a multifield classifier to put the VoIP traffic in the correct queue.
  2. B
    You must configure a rewrite rule to ensure that the traffic is scheduled properly in the device.
  3. C
    You must configure a scheduler to allocate bandwidth to the expedited forwarding queue.
  4. D
    You must configure a policer to ensure that the queue is not being starved.

Correct Answer:
C

Question #18
Click the Exhibit button.
Remote branches connect to the corporate WAN through access switches. The access switches connect to access ports on the WAN distribution switch, as shown in the exhibit. L2PT has previously been configured on the tunnel Layer 2 traffic across the WAN. You decide to move the L2PT tunnel endpoints to the access switches. When you apply the L2PT configuration to the access switches, the ports that connect the access switches to the distribution switch shut down.
Which action would solve this problem?
  1. A
    Configure the links between the access switches and the distribution switch as a trunk port.
  2. B
    Disable the BPDU block function on the access switches.
  3. C
    Disable the BPDU block function on the distribution switch.
  4. D
    Configure a GRE tunnel to encapsulate the L2PT traffic across the WAN.

Correct Answer:
A

Question #19
Click the Exhibit button.
You want to provide Layer 2 connectivity between campus sites using Ethernet switches through a metro Ethernet service provider who is using Q-in-Q tagging on their network.
Referring to the exhibit, what are two design considerations in this environment? (Choose two.)
  1. A
    VXLAN could be implemented on your network across this service provider network.
  2. B
    Each campus switch shown must have a C-Tag 300 configured.
  3. C
    L2PT is required on the SP network to support the spanning tree protocol.
  4. D
    Each campus switch shown must have S-Tag 300 configured.

Correct Answer:
DC

Question #20
You must ensure that all routes in the 10.0.0/8 address range are not advertised outside of your AS.
Which well-known BGP community should be assigned to these addresses to accomplish this task?
  1. A
    no-export
  2. B
    no-peer
  3. C
    internet
  4. D
    no-advertise

Correct Answer:
A
chatbot-img GPT-4o - Answer
The "no-export" community is the correct choice for ensuring that routes within the 10.0.0/8 address range are not advertised outside of your autonomous system (AS). This community prevents routes from being advertised beyond a local BGP confederation boundary, which aligns with the need to restrict the advertisement exclusively within your AS. This setup ultimately enhances security and control over your network routing information, adhering to common BGP practices and RFC 1997 specifications.

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