Physical Security ICSSCADA Practice Questions (Page 11)

Questions 51–55

1. 51expert · hard

   A large airport's fuel farm uses a SCADA system to control fuel distribution. The fuel farm is surrounded by a fence, but the security team has received reports of people cutting the fence at night. The team wants to detect intrusions quickly and also verify the alarm to avoid false dispatches. Which combination of monitoring controls is most effective?

   • AInstall a simple alarm that triggers when the fence is cut, but do not add cameras
   • BInstall a motion-activated light and a sign warning of prosecution
   • CInstall fence-mounted fiber-optic sensors that detect cutting and climbing, and integrate them with CCTV cameras that automatically pan to the alarm location
   • DUse a guard to patrol the fence line every two hours
   Reveal Solution Discussion Select an answer first
2. 52application · medium

   A natural gas pipeline company allows third-party contractors to perform maintenance on the SCADA network equipment. The contractors need access to the control room for several days. Which policy and procedure should be implemented to maintain physical security?

   • AGive contractors a permanent access badge that works at all entrances
   • BRequire contractors to be escorted by an authorized employee at all times while in the control room
   • CAllow contractors to work unescorted after they sign a non-disclosure agreement
   • DProvide contractors with the door combination to the control room
   Reveal Solution Discussion Select an answer first
4. 53foundation · easy

   How does facility design and layout contribute to physical security for ICS networks?

   • ABy ensuring all control equipment is visible from outside the building
   • BBy using open floor plans to improve collaboration among operators
   • CBy placing sensitive control equipment in interior rooms with limited access points
   • DBy locating the control room near the main entrance for easy access
   Reveal Solution Discussion Select an answer first
5. 54foundation · easy

   In the context of ICS/SCADA security, what is the primary purpose of physical security?

   • ATo monitor network traffic for signs of cyber intrusion or malware activity
   • BTo ensure that software patches are applied to all control system components in a timely manner
   • CTo protect the confidentiality of data transmitted between field devices and control servers
   • DTo safeguard personnel, equipment, and facilities from physical harm and unauthorized access
   Reveal Solution Discussion Select an answer first
6. 55expert · hard

   A nuclear power plant has a strict policy that all personnel must use their personal badge to enter the protected area. During a surprise audit, it is discovered that several employees have been sharing badges to enter the control room. The security manager must address this issue while maintaining operational efficiency. Which approach is most effective?

   • APost a security guard at the control room entrance to visually check badges
   • BRemove the badge requirement and use a shared PIN code
   • CIncrease the penalty for badge sharing to immediate termination
   • DImplement a biometric verification step at the control room entrance in addition to the badge reader
   Reveal Solution Discussion Select an answer first