[2025] Free JN0-637 Exam Dumps to Pass Exam Easily
JN0-637 Exam Dumps, JN0-637 Practice Test Questions
NEW QUESTION # 74
You are asked to establish IBGP between two nodes, but the session is not established. To troubleshoot this problem, you configured trace options to monitor BGP protocol message exchanges.
Referring to the exhibit, which action would solve the problem?
- A. Add the junos-host zone policy to permit the BGP packets.
- B. Modify the security policy to permit the BGP packets.
- C. Add BGP to the lo0 host-inbound-traffic configuration.
- D. Add a firewall filter to lo0 that permits the BGP packets.
Answer: C
NEW QUESTION # 75
Exhibit
Referring to the exhibit, which type of NAT is being performed?
- A. Destination NAT
- B. Persistent NAT
- C. Static NAT
- D. Source NAT
Answer: D
NEW QUESTION # 76
You are enabling advanced policy-based routing. You have configured a static route that has a next hop from the inet.0 routing table. Unfortunately, this static route is not active in your routing instance.
In this scenario, which solution is needed to use this next hop?
- A. Use policies.
- B. Use filter-based forwarding.
- C. Use transparent mode.
- D. Use RIB groups.
Answer: D
Explanation:
To enable advanced policy-based routing in Junos OS and activate a static route with a next-hop address in the inet.0 table within your routing instance, you should utilize RIB groups. RIB groups allow you to import routes from one routing table to another. In this scenario, the static route within the routing instance needs access to the inet.0 routes, which is facilitated by configuring a RIB group. Juniper's documentation outlines RIB groups as a necessary component for handling instances where routes need to be shared across routing tables, thereby ensuring seamless traffic flow through specified routes. For more details, refer to the Juniper Networks Documentation on RIB Groups.
In Junos OS for SRX Series devices, when enabling advanced policy-based routing and configuring a static route with a next-hop from the inet.0 routing table, the issue arises because the static route is not being used in the routing instance. This is a common scenario when the next-hop belongs to a different routing table or instance, and the routing instance is not aware of that next-hop.
To resolve this,RIB (Routing Information Base) groupsare used. RIB groups allow routes from one routing table (RIB) to be shared or imported into another routing table. This means that the routing instance can import the necessary routes from inet.0 and make them available for the routing instance where the policy- based routing is applied.
Detailed Steps:
* Configure the Static Route:First, configure the static route pointing to the next-hop in inet.0. Here's an example:
bash
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set routing-options static route 10.1.1.0/24 next-hop 192.168.1.1
This static route will be placed in the inet.0 routing table by default.
* Create and Apply a RIB Group:To import routes from inet.0 into the routing instance, create a RIB group configuration. This will allow the static route from inet.0 to be visible within the routing instance.
Example configuration for the RIB group:
bash
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set routing-options rib-groups RIB-GROUP import-rib inet.0
set routing-options rib-groups RIB-GROUP import-rib <routing-instance-name>.inet.0 This configuration ensures that routes from inet.0 are imported into the specified routing instance.
* Apply the RIB Group to the Routing Instance:Once the RIB group is configured, apply it to the appropriate routing instance:
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set routing-instances <routing-instance-name> routing-options rib-group RIB-GROUP
* Verify Configuration:Use the following command to verify that the static route has been imported into the routing instance:
bash
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show route table <routing-instance-name>.inet.0
The output should now display the static route imported from inet.0.
Juniper Security Reference:
* RIB Groups Overview: Juniper's documentation provides detailed information on how RIB groups function and how to use them to share routes between different routing tables. This is essential for scenarios involving policy-based routing where routes from one instance (like inet.0) need to be available in another instance. Reference: Juniper Networks Documentation on RIB Groups.
By using RIB groups, you ensure that the static route from inet.0 is available in the appropriate routing instance for policy-based routing to function correctly. This avoids the need for other methods like filter- based forwarding or transparent mode, which do not address the specific issue of static route visibility across routing instances.
NEW QUESTION # 77
Exhibit
Referring to the exhibit, an internal host is sending traffic to an Internet host using the 203.0.113.1 reflexive address with source port 54311.
Which statement is correct in this situation?
- A. Only the Internet host that the internal host originally communicated with can initiate traffic to reach the internal host using the 203.0 113.1 address, a random source port, and destination port 54311.
- B. Any host on the Internet can initiate traffic to reach the internal host using the 203.0.113.1 address, a random source port, and destination port54311.
- C. Any host on the Internet can initiate traffic to reach the internal host using the 203.0.113.1 address, source port 54311, and a random destination port.
- D. Only the Internet host that the internal host originally communicated with can initiate traffic to reach the internal host using the 203.0.113.1 address, source port 54311, and a random destination port.
Answer: C
NEW QUESTION # 78
What is the advantage of using separate st0 logical units for each spoke connection?
- A. It enables assignments of different settings to each logical unit.
- B. It is easy to configure even when managing many st0 units.
- C. Junos devices can exchange NHTB data automatically using this method.
- D. It facilitates scalability.
Answer: A
NEW QUESTION # 79
Exhibit:
Referring to the exhibit, which technology would you use to provide communication between IPv4 host1 and ipv4 internal host
- A. DS-Lite
- B. full cone NAT
- C. NAT46
- D. NAT444
Answer: A
NEW QUESTION # 80
Exhibit
Referring to the exhibit, which two statements are true about the CAK status for the CAK named
"FFFP"? (Choose two.)
- A. SAK is successfully generated using this key.
- B. CAK is not used for encryption and decryption of the MACsec session.
- C. CAK is used for encryption and decryption of the MACsec session.
- D. SAK is not generated using this key.
Answer: C,D
NEW QUESTION # 81
You need to set up source NAT so that external hosts can initiate connections to an internal device, but only if a connection to the device was first initiated by the internal device.
Which type of NAT solution provides this functionality?
- A. Address persistence
- B. Static NAT
- C. Persistent NAT with any remote host
- D. Persistent NAT with target host
Answer: D
Explanation:
Persistent NAT with target host allows external hosts to establish connections only when the internal device initiates a session first, ideal for specific interactive applications. Refer to Juniper Persistent NAT Documentation.
The scenario requires that external hosts be able to initiate a connection only if the internal device has already initiated a connection. The correct solution is Persistent NAT with target host, which ensures that a specific external host can initiate new connections back to the internal device, but only after the internal device has established a session first.
* Persistent NAT with Target Host (Answer C): This allows the internal device to initiate a connection, and once established, the specified external host can also initiate new connections to the internal device on the same NAT mapping.
Example Configuration:
bash
set security nat source persistent-nat permit target-host-port
This solution is appropriate when controlled bidirectional communication is required based on an internal- initiated connection.
NEW QUESTION # 82
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 a secure wire.
- C. Use an interconnect VPLS switch.
- D. Use a point-to-point logical tunnel.
Answer: C,D
NEW QUESTION # 83
Which two statements about policy enforcer and the forescout integration are true? (Choose two)
- A. A Forescout CounterACT agent must be installed on third-party devices
- B. 802.1X authenticated devices are supported.
- C. 802.1X authenticated devices are not supported.
- D. A Forescout CounterACT agent is agentless and does not need to be installed on third-party device
Answer: B,D
NEW QUESTION # 84
Exhibit
You are trying to configure an IPsec tunnel between SRX Series devices in the corporate office and branch1. You have committed the configuration shown in the exhibit, but the IPsec tunnel is not establishing.
In this scenario, what would solve this problem.
- A. Change the IKE mode to aggressive on the branch1 and corporate devices.
- B. Add multipoint to the st0.0 interface configuration on the branch1 device.
- C. Change the local identity to inet advpn on the branch1 device.
- D. Change the IKE proposal-set to compatible on the branch1 and corporate devices.
Answer: C
NEW QUESTION # 85
Exhibit.
Referring to the exhibit, which two statements are true? (Choose two.)
- A. The configured solution allows IPv4 to IPv6 translation.
- B. External hosts cannot initiate contact.
- C. The IPv6 address is invalid.
- D. The configured solution allows IPv6 to IPv4 translation.
Answer: C,D
NEW QUESTION # 86
Your customer needs embedded security in an EVPN-VXLAN solution. What are two benefits of adding an SRX Series device in this scenario? (Choose two.)
- A. It adds extra security with the capabilities of an enterprise-grade firewall in the EVPN-VXLAN overlay.
- B. It adds extra security with the capabilities of an enterprise-grade firewall in the EVPN-VXLAN underlay.
- C. It enhances tunnel inspection for VXLAN encapsulated traffic with only Layer 4 security services.
- D. It enhances tunnel inspection for VXLAN encapsulated traffic with Layer 4-7 security services.
Answer: A,D
Explanation:
The SRX Series can inspect traffic within VXLAN tunnels, providing in-depth security services across multiple layers. Adding SRX in the overlay network allows comprehensive control, leveraging advanced firewall capabilities.
When integrating an SRX Series device into an EVPN-VXLAN solution, it offers several security benefits:
Layer 4-7 Security Services (Answer A): The SRX can provide deep packet inspection for VXLAN encapsulated traffic, enhancing security by offering services such as intrusion prevention, application layer filtering, and antivirus scanning. This allows security monitoring of the encapsulated traffic at higher layers of the OSI model (Layers 4-7), which is essential for advanced threat detection. Security in the Overlay Network (Answer C): The SRX adds security by functioning as an enterprise- grade firewall within the EVPN-VXLAN overlay. This means that traffic flowing between virtualized segments or networks can be inspected and filtered using SRX firewall rules, ensuring that the VXLAN overlay remains secure.
These features make the SRX a powerful addition for securing EVPN-VXLAN environments, providing comprehensive security for encapsulated traffic and ensuring that both the underlay and overlay networks are protected.
NEW QUESTION # 87
Which role does an SRX Series device play in a DS-Lite deployment?
- A. Softwire concentrator
- B. STUN server
- C. Softwire initiator
- D. STUN client
Answer: A
NEW QUESTION # 88
You have configured the backup signal route IP for your multinode HA deployment, and the ICL link fails.
Which two statements are correct in this scenario? (Choose two.)
- A. The active node keeps the active signal route.
- B. The current active node retains the active role.
- C. The backup node changes the routing preference to the other node at its medium priority.
- D. The active node removes the active signal route.
Answer: B,C
Explanation:
Explanation:
NEW QUESTION # 89
You are asked to create multiple virtual routers using a single SRX Series device. You must ensure that each virtual router maintains a unique copy of the routing protocol daemon (RPD) process.
Which solution will accomplish this task?
- A. Logical system
- B. Secure wire
- C. Tenant system
- D. Transparent mode
Answer: A
Explanation:
Logical systems on SRX Series devices allow the creation of separate virtual routers, each with its unique RPD process. This segmentation ensures that routing and security policies are isolated across different logical systems, effectively acting like independent routers within a single SRX device. For further information, see Juniper Logical Systems Documentation.
To create multiple virtual routers on a single SRX Series device, each with its own unique copy of the routing protocol daemon (RPD) process, you need to use logical systems. Logical systems allow for the segmentation of an SRX device into multiple virtual routers, each with independent configurations, including routing instances, policies, and protocol daemons.
* Explanation of Answer D (Logical System):
* A logical system on an SRX device enables you to create multiple virtual instances of the SRX, each operating independently with its own control plane and routing processes. Each logical system gets a separate copy of the RPD process, ensuring complete isolation between virtual routers.
* This is the correct solution when you need separate routing instances with their own RPD processes on the same physical device.
Configuration Example:
bash
set logical-systems <logical-system-name> interfaces ge-0/0/0 unit 0
set logical-systems <logical-system-name> routing-options static route 0.0.0.0/0 next-hop 192.168.1.1 Juniper Security Reference:
* Logical Systems Overview: Logical systems allow for the creation of multiple virtual instances within a single SRX device, each with its own configuration and control plane. Reference: Juniper Logical Systems Documentation.
NEW QUESTION # 90
You are configuring an interconnect logical system that is configured as a VPLS switch to allow two logical systems to communicate.
Which two parameters are required when configuring the logical tunnel interfaces? (Choose two.)
- A. Encapsulation ethernet-vpls must be used.
- B. The virtual tunnel interfaces should only be configured with two logical unit pairs per logical system interconnect.
- C. Encapsulation ethernet must be used.
- D. The logical tunnel interfaces should be configured with two logical unit pairs per logical system interconnect.
Answer: C,D
Explanation:
When configuring interconnect logical systems to act as a VPLS switch between two logical systems, the following configurations are necessary:
* Encapsulation Ethernet (Answer A): The logical tunnel interface must be configured with encapsulation ethernet. This allows the interface to carry Ethernet traffic between the logical systems.
Command Example:
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set interfaces lt-0/0/0 encapsulation ethernet
* Two Logical Unit Pairs (Answer C): Each logical tunnel interface should have two logical unit pairs defined to facilitate communication between the two logical systems. One logical unit pair connects each logical system.
Command Example:
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set interfaces lt-0/0/0 unit 0 family ethernet-switching
set interfaces lt-0/0/0 unit 1 family ethernet-switching
These settings are necessary for creating a logical tunnel for VPLS and allowing traffic between the logical systems.
NEW QUESTION # 91
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