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Free JN0-637 Exam Braindumps (page: 14)

Page 13 of 30
PDF with 115 Questions

You are deploying a large-scale VPN spanning six sites. You need to choose a VPN technology that satisfies the following requirements:
All sites must have secure reachability to all other sites. New spoke sites can be added without explicit configuration on the hub site. All spoke-to-spoke communication must traverse the hub site.
Which VPN technology will satisfy these requirements?

  1. ADVPN
  2. Group VPN
  3. Secure Connect VPN
  4. AutoVPN

Answer(s): D

Explanation:

AutoVPN simplifies deployment by dynamically establishing tunnels from spokes to the hub. This architecture supports easy scaling with minimal configuration changes, ensuring spoke-to-spoke traffic flows through the hub. For more information, see Juniper AutoVPN Overview.

In this scenario, you need a VPN solution that ensures secure, dynamic connectivity between multiple sites, with the following conditions:
All sites must have secure reachability.
New spoke sites can be added without explicit configuration on the hub site.
Spoke-to-spoke communication must traverse the hub.
The correct technology to meet these requirements is AutoVPN. It simplifies VPN configurations by automating the setup between hub and spoke sites. Additionally, AutoVPN automatically establishes secure tunnels for new spoke sites without requiring manual configuration at the hub, and all spoke- to-spoke traffic is routed through the hub.


Reference:

Juniper AutoVPN technology for dynamic VPN setups.



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?

  1. Address persistence
  2. Persistent NAT with any remote host
  3. Persistent NAT with target host
  4. Static NAT

Answer(s): C

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.


Reference:

Juniper persistent NAT documentation.



Which two statements are correct about automated threat mitigation with Security Director? (Choose two.)

  1. Infected hosts are tracked by their IP address.
  2. Infected hosts are tracked by their chassis serial number.
  3. Infected hosts are tracked by their MAC address.
  4. Infected hosts are tracked by their user identity.

Answer(s): A,C



You have deployed two SRX Series devices in an active/passive multimode HA scenario. In this scenario, which two statements are correct? (Choose two.)

  1. Services redundancy group 1 (SRG1) is used for services that do not have a control plane state.
  2. Services redundancy group 0 (SRG0) is used for services that have a control plane state.
  3. Services redundancy group 0 (SRG0) is used for services that do not have a control plane state.
  4. Services redundancy group 1 (SRG1) is used for services that have a control plane state.

Answer(s): C,D

Explanation:

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