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Which of the following type of lock uses a numeric keyp…

Which of the following type of lock uses a numeric keypad or dial to gain entry?

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A.
Bolting door locks

B.
Cipher lock

C.
Electronic door lock

D.
Biometric door lock

Explanation:
Cipher locks, also known as programmable locks, are keyless and use keypads to control access into an area
or facility. The lock requires a specific combination to be entered into the keypad and possibly a swipe card.
They cost more than traditional locks, but their combinations can be changed, specific combination sequence
values can be locked out, and personnel who are in trouble or under duress can enter a specific code that will
open the door and initiate a remote alarm at the same time. Thus, compared to traditional locks, cipher locks
can provide a much higher level of security and control over who can access a facility.
Incorrect Answers:
A: A bolting door lock is not the name for the type of lock that uses a numeric keypad or dial to gain entry.
Therefore, this answer is incorrect.
C: Locks that use a numeric keypad or dial to gain entry are often electronic locks. However, they can also be
mechanical (non-electronic) locks. Therefore, this answer is incorrect.
D: Biometric door locks do not use a numeric keypad or dial to gain entry; they use biometric scanners such as
fingerprint or retina scanners. Therefore, this answer is incorrect.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, 2013, p. 480


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