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Question 4 - JN0-637 discussion

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You want to configure the SRX Series device to map two peer interfaces together and ensure that there is no switching or routing lookup to forward traffic.

Which feature on the SRX Series device is used to accomplish this task?

A.

Transparent mode

Answers
A.

Transparent mode

B.

Secure wire

Answers
B.

Secure wire

C.

Mixed mode

Answers
C.

Mixed mode

D.

Switching mode

Answers
D.

Switching mode

Suggested answer: B

Explanation:

Comprehensive Detailed Step-by-Step Explanation with All Juniper Security Reference

Understanding Secure Wire:

Secure Wire Feature:

Connects two interfaces directly without any Layer 2 or Layer 3 processing.

No routing or switching lookup occurs.

Use Case:

Ideal for scenarios where traffic needs to pass through the SRX device transparently.

Option B: Secure wire

Secure wire creates a bidirectional link between two interfaces.

Traffic flows between the interfaces as if they are connected by a physical wire.

'The secure wire feature allows traffic to pass between two interfaces without any security processing or route lookups.'

Source: Juniper TechLibrary - Secure Wire Overview

Why Other Options Are Incorrect:

Option A: Transparent mode involves Layer 2 switching.

Option C: Mixed mode combines Layer 2 and Layer 3 but doesn't prevent switching/routing lookups.

Option D: Switching mode operates at Layer 2 and includes switching lookups.

Conclusion:

Secure wire is the correct feature to map two interfaces together without switching or routing lookups.

asked 01/11/2024
Rolf Johannesen
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