Flashcards in Blue Book Chapter 8 Questions Deck (44):
Why is mechanical access control considered the least secure form of access control?
Loss or legitimate use of a key or combination compromises the entire security of the whole locking scheme.
How can something as simple as a lost key cost a company a lot of money?
It depends on how sophisticated the system is, but it may be necessary to re-install new locks on every door.
How is Electronic access control different from mechanical access control?
Mechanical is an actual key
Electronic is a code
What is the main difference between the two control panel types?
Stand-alone - processes info locally and does not communicate.
Network - can share data with other control units/sites
What are the two most common communication methods for networked control panels?
RS485 and ethernet
Describe the operation on a distributed intelligence system.
Characterized by multiple local control units connected to a central control unit. Local units store at least some user and transaction data.
Most card readers communicate with the control panel over what type cable?
5-8 conductor shielded cable
6 conductor most times
Typically, what is the maximum length for a reader cable?
Define Mag Stripe for a reader:
Like credit card - encoding is read when the card passes in front of the read head.
Define Proximity for a reader:
Card is placed in proximity of the reader so the head can read it.
What card format is considered to be the industry standard?
26 bit Weigand
What are site codes?
A set of prefixed numbers to a card's data information. A unique number common to all the cards in a particular set. The idea is that an organization will have their own site code and a set of numbered cards incrementing from 1
What are the four methods for reading access control cards?
swipe, insert, touch, proximity
How do the following reader types work?
Bar Code - light source shines card and reflects back at light sensor
Mag Stripe - just like a credit card; magnetic material is encoded
Proximity - circuit embedded in card. Low power, short range frequency
What are the five base forms for proximity media?
clamshell, keyfob, ISO, stick on, powered
What is the normal read range for a proximity reader?
What card can be used to increase the range of a reader?
Why are proximity readers ideal for high traffic doors?
Process more users quickly; card doesn't touch door; people use door faster
What makes a smart card different from other card types?
has an electronic memory
Where are contact type smart cards mainly used?
smart credit and debit card; user card of satellite receiver
What information can be stored on smart cards?
access related information, fingerprints, log information, user information
What are hybrid/mixed cards?
cards with multiple uses - can be used with old and new technology
How can you increase the security of a keyboard?
keyguard or position keypad
What are the most common physical attributes used for biometric readers?
fingers, hand geometry, retinal or iris, voice
How is a biometric reader made more secure?
use more credentials - personal attributes are virtually impossible to duplicate.
What locksets are typically used for emergency exit doors?
What are the typical operating voltages for electric locksets?
12 or 24v
How do AC-powered door strikes differ from DC powered door strikes?
DC can be backed up with batteries;
DC are silent while AC's buzz
Describe the difference between fail safe an fail secure locksets.
fail safe - strike is open
fail secure - strike is closed
What lock designation is necessary for an emergency exit?
Why does a fail safe door strike need to be powered from a DC source?
It would buzz constantly as an AC door - (plus has added backup by battery?)
Why is it important for the magnetic lock strike plate to "float"?
Makes the best contact with magnet when door closes.
What are the three holding force ratings for magnetic locks?
1500-1200lb 750-600lb 300-250lb
Is a magnetic lock or an electric strike preferred for a high traffic door? Why?
Magnetic lock, because it puts more stress on an electric strike
What does the term "forced open" refer to?
When a door is help open longer than the preset time period.
What device is used with maglocks when tampering is a concern?
The two main requests to exit devices are:
exit push button and REX motion
What is the purpose of delayed egress?
To help thwart or discourage unauthorized use during non-emergency situations.
How does a delayed egress door work?
Delays unlock of door for 15 seconds after egress request has been made. An alarm also goes off.
Turnstiles are broken down into what two categories?
physical and optical
What type of connection is needed when interfacing with the fire alarm panel?
fail safe relay connection
What is the purpose of an audit trail?
It's a detailed list of all transactions occurring on the system.
What type of lock is always fail safe?