3D1X3 Self Test Questions Vol. 2 Unit 4

Front 1

What factors should you consider when planning the installation of IDS?

Back 1

Equipment capabilities and limitations, mission criticality, and threat to the resources that are to be
protected.

Front 2

How does IDS assist SF capabilities?

Back 2

By alerting security personnel to an approach, intrusion, or attempted intrusion.

Front 3

What type of system should the installed IDS be?

Back 3

A “closed” system, not allowing access from external source.

Front 4

What is the main purpose of a boundary fence?

Back 4

To present a physical and psychological deterrent to unauthorized entry.

Front 5

What does a clear zone consists of?

Back 5

A 30 foot area inside and outside the site perimeter fence.

Front 6

For what purpose does the area lighting need to illuminate the interior of the restricted area?

Back 6

To help personnel detect and track intruders.

Front 7

What must a line of detection detect?

Back 7

A person walking, running, rolling, crawling across, or jumping through the line of detection.

Front 8

Where are CCTVs typically located?

Back 8

CCTVs are typically located along exterior site perimeter clear zones, at controlled access points to sites or
buildings, within a restricted area that overlooks selected security areas outside, and at selected locations
within the protected areas indoor.

Front 9

What is the purpose of an entry control facility?

Back 9

To assist SFs in controlling entry in to and exit from restricted areas.

Front 10

What components make up a simple portal?

Back 10

Single door, a turnstile, or a pedestrian or vehicle gate.

Front 11

What personnel identification device can be used at portals to read the encoded magnetic stripe
on badges?

Back 11

The card reader PIN pad/prompt.

Front 12

List the four card reader Pin/pad/prompt configurations used with the AECS.

Back 12

(1) Card reader with prompt display.
(2) PIN pad with prompt display.
(3) Prompt display only.
(4) Card reader with PIN pad and prompt display.

Front 13

Which panel configuration locks and unlocks portals based on inspection of personnel credentials
such as magnetic stripe-encoded badges, PIN entries, or biometric measurements?

Back 13

The portal control panel (PCP).

Front 14

What workstation functions as a central file server and communicates directly to the CSC
workstation?

Back 14

The enrollment master station (EMS).

Front 15

Which workstation displays events and assists the operator in responding to these events?

Back 15

Security workstation.

Front 16

What audio subsystem component is typically located at access portals enabling persons
attempting entrance to a controlled area?

Back 16

Intercom substation.

Front 17

What allows the camera inputs to the video switches located at the CSC, MSCF, and ECP
workstations to be forwarded to another station?

Back 17

Loop-through connections.

Front 18

What devices are used to accommodate large geographical separations between workstations and
panels?

Back 18

Modems and fiber optic transceivers.

Front 19

What backup power voltage do the primary and backup power supplies provide in the event that
station power is lost?

Back 19

12–VDC.

Front 20

What are some of the advantages of a conventional LMR system?

Back 20

They are cost effective, they are easy to maintain, and their limited infrastructure ensures that
communication is possible in the event of a catastrophic failure.

Front 21

When you key and speak into a radio, who can hear you?

Back 21

Everyone on that particular channel can hear you.

Front 22

When would you use a simplex radio system?

Back 22

Simplex radio system works well when there are only a few users who are closely located.

Front 23

In a half-duplex operation, what are the two frequencies used for?

Back 23

Transmissions take place on one frequency and receive on another.

Front 24

Why do repeaters use duplexer?

Back 24

With a duplexer, it isolates the receiver from “hearing” the transmitter and prevents damage to the receiver.

Front 25

What are the limitations of a single-site configuration?

Back 25

The user radio must be within the range of coverage of the repeater, base station, or other radio asset.

Front 26

What system is employed to increase area coverage and to improve radios talkback capability?

Back 26

To extend the coverage of an area and improve its talkback capability, a receiver voting system is employed
to the existing LMR architecture.

Front 27

Describe the primary difference between a simulcast and multicast system?

Back 27

While a simulcast system transmits on the same RF channels simultaneously from each base
station/repeater, multicast systems use different RF channels at each site.

Front 28

What does a typical trunking system consist of?

Back 28

Some type of access control (whether in each mobile unit or centralized at a base station site), switching
equipment, system management computer, control and voice channel repeaters, modems, and telephone
interconnect.

Front 29

When you set up a trunking network, how are different user groups defined?

Back 29

User groups are defined as “talkgroups.”

Front 30

What is trunking?

Back 30

Electronically controlled sharing of a relatively small number of communications channels among a
relatively large number of users.

Front 31

How does trunking result in a more balanced load sharing?

Back 31

Trunked systems use access control schemes to share channel capacity among many users. The electronic
control enables users to take advantage of some transmitted channels that are idle at a particular time while
others are busy.

Front 32

What part of the trunking system sends a data message over the control channel to automatically
switch all radios in a particular talk group to the available voice channel?

Back 32

If a voice channel is available, the system controller sends a data message over the control channel
switching all units in User A’s talk group to the available voice channel.

Front 33

Besides spectrum conservation, what are the other inherent benefits of a trunking system?

Back 33

Other inherent benefits include faster system access, better channel efficiency, more user privacy, flexibility
to expand, and selective radio inhibit.

Front 34

On the radio, what does the scan function do?

Back 34

Cycles through the talkgroups programmed in the scan function but again they are only monitoring one
talkgroup at a time.

Front 35

Which trunking user equipment provides users the capability to monitor more than one talkgroup
at a time?

Back 35

Dispatch consoles provide the capability to monitor more than one talkgroup at a time.

Front 36

How are LMR radios rekeyed without having to physically recall the radios from the field?

Back 36

LMR radios can support over-the-air rekeying of encryption keys without having to physically recall the
radios from the field.

Front 37

What does giant voice provide?

Back 37

The base with crucial safety and security information.

Front 38

What AFI requires communication squadrons to maintain “installation warning systems”?

Back 38

AFI 10–2501, Full Spectrum Threat Response Planning and Operations.

Front 39

Besides maintaining “installation warning systems,” what else must a communications squadron
do?

Back 39

To originate, verify, and maintain an audibility footprint map showing area of coverage and low
audible/hazard areas.

Front 40

What is one of the common problems with mass alert systems in a deployed environment?

Back 40

Cleanliness.

Front 41

What are the three basic components of a Whelen system?

Back 41

Siren stacks, siren cabinet, the encoder.

Front 42

Differentiate the operation between the remote and local position of the WPS–2800 system?

Back 42

There are two ways to operate the WPS–2800 system, remote or local position. Remote position operation
involves transmitting signals from the encoder to the desired station via a landline connection or through
FM transceivers. Local position operation is accomplished through the control panel on the front of the
siren cabinet.

Front 43

How long does the E–969 encoder maintain current time when power is lost?

Back 43

Up to three months.

Front 44

Name the two ways you can program the E–969 encoder.

Back 44

Through a personal computer or through the encoder’s keypad.

Front 45

How many call keys does the E–2010 have?

Back 45

62.