Cisco campus interview questions 2026

• Candidates were asked to Parse S-parameter magnitude CSV and find resonant peak — argmax loop for Cisco.
• A typical live round for Cisco started with: Logic grid: four machines four faults exactly one per machine — elimination speed for Cisco.
• A recurring screen item at Cisco: What signals would you log before an OTA firmware rollout — risk list for Cisco.
• In a recent 2025 campus drive for Cisco, Bit-mask safe states for motor controller FSM — defensive transitions at Cisco.
• Interview debriefs from 2025–26 mention: Simulate simple RC low-pass response with Euler step — numeric loop for Cisco interviews.
• Hiring managers at Cisco frequently open with: Validate checksum on CAN frame mock — bitfield unpack for Cisco.
• One candidate reported that interviewers asked to Why Cisco in automotive/core vs pure software house — motivation depth.