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Palo_Alto_Networks

PSE-SASE · Question #10

What are two benefits of installing hardware fail-to-wire port pairs on Instant-On Network (ION) devices? (Choose two.)

The correct answer is D. ensures automatic failover when ION devices experience software or network related failure. Fail-to-wire port pairs are hardware-level bypass mechanisms that physically bridge two ports together when the ION device loses power or experiences a failure. Option D is correct because this is the defining purpose of fail-to-wire: traffic continues flowing through the…

CloudGenix SD-WAN Deployment and Configuration

Question

What are two benefits of installing hardware fail-to-wire port pairs on Instant-On Network (ION) devices? (Choose two.)

Options

  • Alocal area network (LAN) Dynamic Host Configuration Protocol (DHCP) and DHCP relay
  • Bcontrol mode insertion without modification of existing network configuration
  • Cnetwork controller communication and monitoring
  • Densures automatic failover when ION devices experience software or network related failure

How the community answered

(56 responses)
  • A
    2% (1)
  • B
    2% (1)
  • C
    5% (3)
  • D
    91% (51)

Explanation

Fail-to-wire port pairs are hardware-level bypass mechanisms that physically bridge two ports together when the ION device loses power or experiences a failure. Option D is correct because this is the defining purpose of fail-to-wire: traffic continues flowing through the device's location even if the device itself crashes or loses power, ensuring no network outage occurs from a single point of failure.

Given the question asks to "Choose two," B is also correct - because fail-to-wire allows you to insert an ION device inline (control mode) into an existing network segment without reconfiguring upstream/downstream devices. If the ION device later fails, traffic bypasses it automatically, so there's no risk of disrupting the existing topology.

A is wrong because LAN DHCP and DHCP relay are software services unrelated to the hardware port-pair bypass mechanism. C is wrong because controller communication and monitoring is a management-plane function, not a property of the physical fail-to-wire hardware feature.

Memory tip: Think of fail-to-wire as a "dead man's switch" - when the device goes down, the ports physically connect like a wire (hence fail-to-wire), keeping traffic alive. The two benefits map to insertion safety (drop it in without reconfiguring) and failure safety (traffic survives the device dying).

Topics

#ION devices#fail-to-wire#hardware failover#SD-WAN resilience

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