Question 1

When trying to control radio signals from leaking outside of a building, a ______________ antenna should be used.

Accepted Answer

A panel antenna is a directional antenna that has a narrow beamwidth and provides high gain. It is designed to focus the radio signal in a specific direction, thus reducing the likelihood of signal leakage outside of the building. In contrast, a dipole antenna is an omnidirectional antenna that radiates the signal in all directions, while a dome antenna is typically used for indoor coverage and may not provide the necessary directional control. A vee antenna is also an omnidirectional antenna with a slightly directional pattern, but it may not provide enough directional control to prevent signal leakage. Therefore, the best choice for controlling radio signals from leaking outside of a building is a panel antenna.

Question 2

What is the MOST important aspect of fire alarm signaling?

Accepted Answer

The answer of What is the MOST important aspect of...

Question 3

In (ESS) design, employees, reputation, and materials are all examples of:

Accepted Answer

In ESS design, employees, reputation, and materials are all examples of assets. Assets refer to the valuable resources that an organization possesses and can use to achieve its objectives. Employees can provide skills, knowledge, and experience. Reputation can be a valuable intangible asset that can provide a competitive advantage, and materials can be used to produce goods or services.

Question 4

As a wireless designer, you have been tasked with designing a DAS which supports UHF public safety radios. You have determined that if you increase the power of the base station antenna, you can solve coverage problems in the basement. One of the restrictive items that you should consider is:

Accepted Answer

The legal limits of the transmitter should always be considered when increasing the power of the base station antenna. It is important to ensure that the transmitter is operating within legally allowed limits to avoid interference with other radio systems and potential safety hazards.

Question 5

The propagation and path loss of radio signals in the target environment can be sampled using:

Accepted Answer

The answer of The propagation and path loss of radio...

Question 6

Which wireless device should be used to support 3 computers and a printer?

Accepted Answer

A router is designed to connect multiple devices to a network, including computers and printers. It can also provide wireless connectivity for those devices, making it a good choice for supporting 3 computers and a printer. A bridge is designed to extend the range of a network, a gateway is a device that connects networks with different protocols, and a switch is designed to connect multiple devices within a network, but does not provide wireless connectivity.

Question 7

The concept of the "security quandary" is based on providing a balancing act between what two elements?

Accepted Answer

The "security quandary" involves balancing access to resources and information with the need for isolation to protect against threats.

Question 8

The three electronic security system (ESS) concepts the consultant needs to understand when creating an ESS system are threats, countermeasures, and:

Accepted Answer

The third concept that the consultant needs to understand when creating an ESS system is risks. After identifying the potential threats, the consultant must identify the risks associated with those threats in order to determine which countermeasures to implement. Risk assessment is a crucial step in designing an effective ESS system.

Question 9

The distance a CCTV signal may be run is determined by the strength of the signal at the source, required signal strength at the receiver, and:

Accepted Answer

The distance a CCTV signal can be run is limited by the signal loss in the cable. The strength of the signal at the source and the required signal strength at the receiver also play a role, but the primary factor is the signal loss in the cable.

Question 10

You are designing a DAS system that has a requirement to supply both RF signal and power to the remote transceivers in the system. Which cable will provide the needed services for this application?

Accepted Answer

The answer of You are designing a DAS system that...

Question 11

For an analog camera, what is the normal frame rate in frames per second?

Accepted Answer

The normal frame rate for an analog camera is 30 fps. While some cameras may have different frame rates, 30 fps is the most common and standard frame rate.

Question 12

A security program consists of three independent components. They are electronic, architectural, and:

Accepted Answer

The answer of A security program consists of three independent...

Question 13

Omnidirectional antennas broadcast equally in all directions of only ________ cross section(s) of their toroidal (doughnut-shaped) three-dimensional radiation pattern.

Accepted Answer

Omnidirectional antennas broadcast equally in all directions of only one cross section of their toroidal three-dimensional radiation pattern. This cross section is typically a horizontal plane, which means that the antenna broadcasts equally in all directions around the antenna in that plane.

Question 14

Which device uses circulators or diplexer filters to separate and combine the different transmit and receive RF paths?

Accepted Answer

The answer of Which device uses circulators or diplexer filters...

Question 15

You are designing a 4.9 GHz microwave system that is using rectangular waveguide from the transceiver to the inside wall of the shelter and an antenna that is to be placed 200 ft up on a 250 ft tower. What type of medium will be best suited to connect the antenna to the transceiver?

Accepted Answer

The answer of You are designing a 4.9 GHz microwave...

Question 16

You are designing an audible alarm notification system for an office environment with an ambient noise level of 55 dBA. What dBA level should the horn be set at?

Accepted Answer

The alarm should be set at least 10 dBA above the ambient noise level to ensure it is clearly audible. Since the ambient noise level is 55 dBA, the alarm should be set at 65 dBA or higher, making 70 dBA the appropriate choice.

Question 17

Which of the following is NOT a primary method of transporting radio signals in an active DAS?

Accepted Answer

The answer of Which of the following is NOT a...

Question 18

Given the following values, calculate the focal length of the camera lens. - Distance of the camera to the object is 5 m - Vertical field of view is 2 m - Horizontal field of view 1 m

Accepted Answer

The focal length can be calculated using the formula for field of view: Focal Length = (Distance to Object * Sensor Size) / Field of View. Assuming the sensor size is proportional to the field of view, the focal length is approximately 10 meters.

Question 19

Which device supplies the radio signal into a DAS (distributive antenna system)?

Accepted Answer

The answer of Which device supplies the radio signal into...

Question 20

You are designing a DAS that will support five buildings on a college campus. Which medium is best suited to ensure the best connectivity and throughput between the headend and backend devices located in the various buildings?

Accepted Answer

Optical fiber cabling is the best choice for ensuring high connectivity and throughput between the headend and backend devices in different buildings. It provides low attenuation, high bandwidth, and immunity to electromagnetic interference, making it the ideal solution for DAS networks. Coaxial and twisted pair cabling may become susceptible to noise and signal loss over long distances, and shielded twisted pair cabling can be expensive and difficult to terminate.

Exam 1: BICSI Registered Communications Distribution Designer - RCDD