ISO 26262 CT-AUT Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   A software team is developing the control software for an airbag control unit (ACU) with ASIL D requirements. The team has defined software safety requirements and is now designing the software architecture. Which of the following practices is most aligned with ISO 26262 for software architectural design?

   • AUse a single monolithic module to maximize execution speed.
   • BUse a single interrupt service routine for all functions to reduce complexity.
   • CMinimize the number of software components to reduce verification effort.
   • DPartition the software into components with restricted interfaces and ensure freedom from interference.
   Reveal Solution Discussion Select an answer first
2. 7application · medium

   An OEM is managing a functional safety project for an autonomous emergency braking (AEB) system. The project involves multiple suppliers, and the safety plan requires regular safety reviews. After a supplier delivers a hardware component, the OEM's safety manager notices that the supplier's safety case does not reference the latest version of the hazard log. What should the safety manager do first?

   • AReject the delivery and stop all project work until the safety case is updated.
   • BInitiate a change request to update the safety case and assess the impact on the safety case.
   • CUpdate the safety case on behalf of the supplier to include the latest hazard log.
   • DIgnore the discrepancy because the safety case is only a summary document.
   Reveal Solution Discussion Select an answer first
4. 8application · medium

   A team is performing the HARA for a new lane-keeping assist system. They identify a hazardous event: the system unintentionally steers the vehicle into an adjacent lane. The team must determine the ASIL for this hazard. Which of the following factors is NOT considered in the ASIL determination?

   • AExposure of the situation in which the hazard can occur.
   • BControllability of the hazard by the driver or other persons.
   • CThe cost of implementing safety mechanisms to mitigate the hazard.
   • DSeverity of potential harm to occupants or other road users.
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5. 9foundation · easy

   What is the output of the hazard analysis and risk assessment (HARA)?

   • AA software architecture diagram
   • BSafety goals with associated ASILs
   • CA test plan for integration testing
   • DA detailed hardware schematic
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6. 10foundation · easy

   Which of the following is a requirement in the production and operation phase?

   • APerforming the hardware metrics evaluation
   • BEnsuring that production processes are capable of achieving the safety requirements
   • CCreating the software design
   • DDefining the safety goals
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