A service provider is deploying an SRX in mixed mode for a customer with multiple tenants. Each tenant has its own VLAN on a shared trunk interface, and each tenant also has a routed segment. The provider wants to ensure that tenant A cannot communicate with tenant B at Layer 2 or Layer 3, while still allowing each tenant's VLAN traffic to be inspected transparently. Which configuration approach meets this requirement?

Configure all interfaces in transparent mode

Create a separate Layer 2 zone for each tenant's VLAN and a separate Layer 3 zone for each tenant's routed segment, then apply policies that deny inter-tenant traffic

Place all tenant VLANs in a single Layer 2 zone and all routed segments in a single Layer 3 zone

Use a separate physical interface for each tenant's VLAN and routed segment

What role do security zones play in traffic handling in mixed mode?

Security zones are used to determine the VLAN ID for traffic forwarding.

Security zones are only used for routed interfaces; transparent interfaces do not belong to zones.

Security zones define the trust level and are used to apply security policies to traffic between zones.

Security zones are used to enable or disable mixed mode on the device.

A regional bank is deploying Juniper SRX Series firewalls in a new branch office. The branch has a legacy Layer 2 switch segment carrying unauthenticated guest Wi-Fi traffic that must be inspected inline, and a routed segment for the corporate LAN that connects to the WAN router. The security team wants a single SRX device to enforce security policies on both segments without redesigning the existing switching topology. Which mode should the SRX be configured to use?

Transparent mode on all interfaces

An SRX in mixed mode is dropping traffic from a host on a transparent segment (VLAN 10) to a server on a routed segment (10.10.10.0/24). The administrator has verified the security policy is correct and the host can ping the SRX's routed interface IP. The administrator has also verified that the SRX has a route to 10.10.10.0/24. What is the most likely cause of the drop?

The server's default gateway is not set to the SRX's routed interface IP

The SRX is not running a routing protocol to learn the 10.10.10.0/24 route

The security policy is applied in the wrong direction

The SRX is not learning the MAC address of the host on VLAN 10

A network administrator notices that traffic from a transparent interface to a routed interface is being dropped. What is a common cause of this issue in mixed mode?

The transparent interface is not assigned to a security zone.

The device does not support routing between transparent and routed interfaces.

The VLAN ID on the transparent interface does not match the routed interface's VLAN ID.

The security policy between the source and destination zones is missing or configured incorrectly.

Juniper NetworksCertified Professional, Security (JNCIP-SEC)

Domain 3Objective 2

Mixed Mode JN0-637 Practice Questions (Page 1)

Part of the Layer 2 Security domain, which makes up ~14% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~5–8 in this domain), expect 1–2 from this objective — we provide 21 practice questions to prepare you well beyond it. (estimate)

21questions here

5free pages

5concepts

Questions 1–5

1expert · hard
A service provider is deploying an SRX in mixed mode for a customer with multiple tenants. Each tenant has its own VLAN on a shared trunk interface, and each tenant also has a routed segment. The provider wants to ensure that tenant A cannot communicate with tenant B at Layer 2 or Layer 3, while still allowing each tenant's VLAN traffic to be inspected transparently. Which configuration approach meets this requirement?
Select an answer first
2foundation · easy
What role do security zones play in traffic handling in mixed mode?
Select an answer first
3application · medium
A regional bank is deploying Juniper SRX Series firewalls in a new branch office. The branch has a legacy Layer 2 switch segment carrying unauthenticated guest Wi-Fi traffic that must be inspected inline, and a routed segment for the corporate LAN that connects to the WAN router. The security team wants a single SRX device to enforce security policies on both segments without redesigning the existing switching topology. Which mode should the SRX be configured to use?
Select an answer first
4expert · hard
An SRX in mixed mode is dropping traffic from a host on a transparent segment (VLAN 10) to a server on a routed segment (10.10.10.0/24). The administrator has verified the security policy is correct and the host can ping the SRX's routed interface IP. The administrator has also verified that the SRX has a route to 10.10.10.0/24. What is the most likely cause of the drop?
Select an answer first
5foundation · easy
A network administrator notices that traffic from a transparent interface to a routed interface is being dropped. What is a common cause of this issue in mixed mode?
Select an answer first

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Mixed Mode JN0-637 Practice Questions (Page 1)

Questions 1–5

What role do security zones play in traffic handling in mixed mode?

A network administrator notices that traffic from a transparent interface to a routed interface is being dropped. What is a common cause of this issue in mixed mode?

Keep studying — Layer 2 Security