QUESTION: 29

Your IPsec tunnel is configured with multiple security associations (SAs). Your SRX Series device supports the CoS-based IPsec VPNs with multiple IPsec SAs feature. You are asked to configure CoS

for this tunnel.
Which two statements are true in this scenario? (Choose two.)

The local and remote gateways do not need the forwarding classes to be defined in the same order.
A maximum of four forwarding classes can be configured for a VPN with the multi-sa forwarding- classes statement.
The local and remote gateways must have the forwarding classes defined in the same order.
A maximum of eight forwarding classes can be configured for a VPN with the multi-sa forwarding- classes statement.

Answer(s): A,D

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QUESTION: 30

The exhibit shows part of the flow session logs.

Which two statements are true in this scenario? (Choose two.)

The existing session is found in the table, and the fast path process begins.
This packet arrives on interface ge-0/0/4.0.
Junos captures a TCP packet from source address 172.20.101.10 destined to 10.0.1.129.
Destination NAT occurs.

Answer(s): B,D

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QUESTION: 31

You have deployed automated threat mitigation using Security Director with Policy Enforcer, Juniper ATP Cloud, SRX Series devices, Forescout, and third-party switches. In this scenario, which device is responsible for communicating directly to the third-party switches when infected hosts need to be blocked?

Forescout
Policy Enforcer
Juniper ATP Cloud
SRX Series device

Answer(s): B

Explanation:

Policy Enforcer receives these policies and translates them into device-specific commands. It then communicates with the third-party switches (using protocols like SNMP, RADIUS, or vendor-specific APIs) to enforce those commands, such as blocking the infected hosts' MAC addresses or port access.
Why Policy Enforcer is the Right Choice:
Centralized Enforcement: Policy Enforcer acts as the central point of enforcement for Security Director policies, ensuring consistent security across the network. Multi-Vendor Support: It can interact with a wide range of network devices, including switches from different vendors.
Automation: Policy Enforcer automates the policy enforcement process, enabling rapid response to threats.

Reference:

Forescout and Juniper integration for network access control.

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QUESTION: 32

Referring to the exhibit,

which two statements are correct about the NAT configuration? (Choose two.)

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

Answer(s): B,D

Explanation:

Persistent NAT with target-host restricts session initiation to specific addresses, enhancing security. Reflexive NAT supports multiple connections by preserving the original port. Refer to Juniper NAT Configuration Documentation.

Referring to the NAT configuration shown in the exhibit:
Specific Host Can Initiate a Session (Answer B): The configuration uses persistent NAT with the permit target-host-port statement. This allows a specific external host (based on the target host and port used in the initial session) to initiate a session back to the internal host after the initial session has been established.
Persistent NAT ensures that the translation state is maintained, allowing external hosts to connect back only under specific conditions (e.g., the same target host and port as used in the original connection).
Original Destination Port (Answer D): The original destination port used by the internal host is retained as the source port when the session is established from outside to inside. This behavior is a result of how persistent NAT binds the internal and external sessions, ensuring that communication occurs over the same port used for the initial session.

Reference:

Juniper NAT and Persistent NAT configuration documentation.

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Free JN0-637 Exam Braindumps (page: 9)

QUESTION: 29

QUESTION: 30

QUESTION: 31

Explanation:

Reference:

QUESTION: 32

Explanation:

Reference:

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