JN0-649 by Juniper Actual Free Exam Q&As

Question 1

In OSPF, how does a router ensure that LSAs advertised to a neighboring router are received?

A. LSAs are sent over a TCP connection. B. LSA flooding guarantees that all routers will receive them successfully. C. LSAs are acknowledged by the neighboring router. D. LSAs are advertised with an acknowledgement bit.

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Correct Answer: C Vote an answer

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Question 2

You have configured class mode power management on an EX4300 to provide PoE power to telephone and security camera equipment. You want to ensure that security camera power takes priority over telephone power.
Which two actions would solve this problem? (Choose two.)

A. Connect the security cameras to the lowest port numbers on the switch. B. Set the maximum power settings on ports connected to security cameras. C. Set the power priority to high on ports connected to security cameras. D. Set the power priority to low on ports connected to security cameras.

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Correct Answer: A,C Vote an answer

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Question 3

You are designing a multicast topology to support IPv4 IPTV broadcasts in your organization. The design should support multiple multicast senders with overlapping group addresses while preventing interference between them. Client devices currently do not support IGMPv3.
Which approach would fulfill these requirements?

A. Implement bidirectional PIM B. Assign group addresses in the 224/4 range and implement PIM-DM C. Implement PIM-SM and SSM with SSM maps to support IGMPv2 clients D. Implement MLD

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Correct Answer: B Vote an answer

Question 4

Which BGP message type contains NLRI information?

A. update B. notification C. open D. keepalive

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Correct Answer: A Vote an answer

Question 5

Your campus EX9200 core devices are highly oversubscribed on bandwidth ans reporting massive dropped packets.
To immediately address the issue, you decide to implement shaping on all interfaces.
Which action will accomplish?

A. Define a CoS input traffic control profile with the shape-rate 5G parameter and apply it to all interfaces. B. Apply the shape-rate 5G parameter to all interfaces under the [edit class-of service] hierarchy. C. Define a CoS output traffic control profile with the shape-rate 5G parameter and apply it to all interfaces. D. Apply the input-shape-rate 5G parameter to all interfaces under the [edit class-of service] hierarchy.

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Correct Answer: C Vote an answer

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Question 6

Referring to the exhibit, anycast RP is implemented to ensure multicast service availability. The source is currently sending multicast traffic using group 239.1.1.1 and R3 is receiving PIM register messages, but R2 does not have active source information. In this scenario, what are two methods to receive the active source information on R2? (Choose two.)

A. Configure an RP set in PIM on R1, allowing R1 to forward PIM register messages to R2 and R3 in the set. B. Configure an MSDP protocol between R1 and R2. C. Configure an MSDP protocol between R2 and R3. D. Configure an RP set in PIM on R2 and R3, allowing the RPs to forward PIM register messages to the other RPs in the set.

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Correct Answer: C,D Vote an answer

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Question 7

You must provide network connectivity to hosts that fail authentication. In this scenario, what would be used in a network secured with 802.1X to satisfy this requirement?

A. Configure the port as a spanning tree edge port. B. Configure a secondary IP address on the port for unauthenticated hosts. C. Use the server-reject-vlan command to specify a guest VLAN. D. Configure the native-vlan-id parameter on the port.

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Correct Answer: C Vote an answer

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Question 8

You have an MX960 configured as a Fusion aggregation device (AD) and two QFX5100 switches as satellite devices (SD). You have configured local-switching for each SD. A packet with an unknown MAC address is received on one of the SD extended ports.
Which statement is correct in this scenario?

A. The packet is sent to the AD to be processed and forwarded. B. The packet is dropped and a reject message is sent out to the port where it was received. C. The packet is flooded out of all the ports on the SD except the one where it was received. D. The packet is silently discarded and a reject message is sent to the AD.

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Correct Answer: A Vote an answer

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Question 9

Your network has Junos Fusion configured with MX960 routers as aggregation devices (AD) and QFX5100 switches as satellite devices (SO) Which two statements are coned in this scenario?
(Choose two )

A. The Fusion extended ports are configured on the SDs. B. The AD runs the Junos software for all its connected SDs. C. SDs are added to the AD by configuring the cascade port on the AD. D. All SDs connected to a single AD must use the same software version.

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Correct Answer: A,C Vote an answer

Question 10

You are troubleshooting an EVPN-VXLAN IP fabric and observe the loop shown in the exhibit.
Which two steps would you take to further troubleshoot this problem? (Choose two.)

A. Issue the show route table bgp.evpn.0 command on Leaf2 and verify that Type 4 routes are present. B. Verify that the same ESI is configured on the link from the host and that it matches the source. C. Issue the show route table bgp.evpn.0 command on Leaf2 and verify that Type 3 routes are present. D. Verify that the same ESI is configured on the two links from the source.

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Correct Answer: A,C Vote an answer

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Question 11

Which protocol is used for port-level access control and authentication?

A. MD5 B. 802.1x C. AES D. IPsec

Discussion 0

Correct Answer: B Vote an answer

Question 12

Which three configuration parameters must match on all switches within the same MSTP region?
(Choose three.)

A. region name B. bridge priority C. VLAN to instance mapping D. configuration name E. revision level

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Correct Answer: A,C,E Vote an answer

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Question 13

Which two statements are true regarding BGP load balancing? (Choose two.)

A. Multipath places multiple next-hops in the forwarding table for each destination. B. Multipath provides per-flow load balancing. C. Multipath provides per-prefix load balancing. D. Multipath places a single next-hop in the forwarding table for each destination.

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Correct Answer: A,C Vote an answer

Question 14

Click the exhibit.

Where is the policy shown in the exhibit enforced?

A. Between the RIB-OUT table and the BGP peer B. Between the BGP peer and the RIB-In table C. Between the RIB-LOCAL and the RIB-OUT tables D. Between the RIB-IN and the RIB-LOCAL tables

Discussion 0

Correct Answer: D Vote an answer

Juniper Enterprise Routing and Switching, Professional (JNCIP-ENT) - JN0-649 Exam Practice Test