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…
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)- A2% (1)
- B2% (1)
- C5% (3)
- D91% (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).
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