Free JN0-637 Exam Dumps

Question 11

Referring to the exhibit,
JN0-637 dumps exhibit
which two statements are correct about the NAT configuration? (Choose two.)

A. Both the internal and the external host can initiate a session after the initial translation.
B. Only a specific host can initiate a session to the reflexive address after the initial session.
C. Any external host will be able to initiate a session to the reflexive address.
D. The original destination port is used for the source port for the session.

Correct Answer:AB

Question 12

You want to create a connection for communication between tenant systems without using physical revenue ports on the SRX Series device.
What are two ways to accomplish this task? (Choose two.)

A. Use an external router.
B. Use an interconnect VPLS switch.
C. Use a secure wire.
D. Use a point-to-point logical tunnel.

Correct Answer:BD

Question 13

Which two statements are true regarding NAT64? (Choose two.)

A. An SRX Series device should be in flow-based forwarding mode for IPv4.
B. An SRX Series device should be in packet-based forwarding mode for IPv4.
C. An SRX Series device should be in packet-based forwarding mode for IPv6.
D. An SRX Series device should be in flow-based forwarding mode for IPv6.

Correct Answer:AD
Comprehensive Detailed Step-by-Step Explanation with All Juniper Security References
Understanding NAT64:
✑ NAT64 allows IPv6-only clients to communicate with IPv4 servers by translating IPv6 addresses to IPv4 addresses and vice versa.
✑ It is essential in environments where IPv6 clients need access to IPv4 resources.
Flow-Based vs. Packet-Based Forwarding Modes:
✑ Flow-Based Forwarding Mode:
✑ Packet-Based Forwarding Mode:
✑ Option A: An SRX Series device should be in flow-based forwarding mode for IPv4.
✑ Option B: An SRX Series device should be in packet-based forwarding mode for
IPv4.
✑ Option C: An SRX Series device should be in packet-based forwarding mode for IPv6.
✑ Option D: An SRX Series device should be in flow-based forwarding mode for
IPv6.
Key Points:
✑ NAT64 Requires Flow-Based Mode:
✑ Packet-Based Mode Limitations:
Juniper Security References:
✑ Juniper Networks Documentation:
✑ Understanding Flow-Based and Packet-Based Modes:
Conclusion:
✑ To implement NAT64 on an SRX Series device, both IPv4 and IPv6 traffic must be processed in flow-based forwarding mode.
✑ Therefore, Options A and D are the correct statements.

Question 14

Exhibit:
JN0-637 dumps exhibit

Referring to the exhibit, which statement is true?

A. SRG1 is configured in hybrid mode.
B. The ICL is encrypted.
C. If SRG1 moves to peer 2, peer 1 will drop packets sent to the SRG1 interfaces.
D. If SRG1 moves to peer 2, peer 1 will forward packets sent to the SRG1 interfaces.

Correct Answer:D
The exhibit describes a Chassis Cluster configuration with high availability (HA) settings. The key information is related to Service Redundancy Group 1 (SRG1) and its failover behavior between the two peers.
✑ Explanation of Answer D (Packet Forwarding after Failover):
Juniper Security Reference:
✑ Chassis Cluster Failover Behavior: When a service redundancy group fails over to the backup peer, the previously active peer forwards traffic to the new active node. Reference: Juniper Chassis Cluster Documentation.
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Question 15

Exhibit:
JN0-637 dumps exhibit
Referring to the exhibit, a default static route on SRX-1 sends all traffic to ISP-A. You have configured APBR to send all requests for streaming video traffic to ISP-B. However, the return traffic from the streaming video server is coming through ISP-A, and the traffic is being dropped by SRX-1. You can only make changes on SRX-1.
How do you solve this problem?

A. Place both ISP-facing interfaces in the same zone.
B. Change the APBR routing instance from a forwarding instance to a virtual router instance.
C. Enable AppTrack to keep track of the sessions and zones for the streaming video traffic.
D. Configure BGP to control the return path of the streaming video traffic.

Correct Answer:D