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You are designing a strobe visual notification system for a fire alarm system. You have a hallway that is 4.6 m (15 ft) wide and 100 m (328 ft) long. How many strobes should be placed in the hallway?
The three electronic security system (ESS) concepts the consultant needs to understand when creating an ESS system are threats, countermeasures, and:
In (ESS) design, employees, reputation, and materials are all examples of:
Which of the following is NOT a source of electromagnetic interference (EMI)?
You are placing Category 6 unshielded twisted-pair (UTP) in cable tray down a hallway past the elevator mechanical room. What action should you take to avoid effects of electromagnetic interference (EMI)?
During a site survey you notice that several CRT displays in the vicinity of the engineering copy center have sporadic visual distortion. What is the MOST likely cause?
Which of the following is NOT considered acceptable in an information technology system (ITS) conduit design and installation?
Cables are installed in a ceiling in a straight line. The ceiling run is 60 m (200 ft) in length. What is the MINIMUM number of J-hooks required to support the cables?
Using the "pathway design" for horizontal cable distribution, how many cable runs are placed to serve 15 individual?
When specifying telecommunications outlet boxes, all of the following should be considered EXCEPT:
When installing outlet boxes in ten private offices in an area which may prove to be difficult to install future additional telecommunications outlets, the MINIMUM quantity of outlet boxes that should be installed is:
Which of the following is NOT an example of a perimeter pathway?
The headend has several audio-video playback devices within it. What piece of equipment is required to assign their output signals to specific RF carriers on the CATV system?
What is the appropriate impedance of coaxial cable for use with broadband distribution?
Exhibit:
The following diagram indicates what type of CATV distribution system?
Which of the following is used to create an electronic signal that can be sent to the central nurse call equipment?
You are designing a nurse call system for a health care facility. The system will have emergency call switches. What is the first step you should take in designing the nurse call system?
You are designing a nurse call system for an assisted care facility. What type of nurse call system would best suit the needs for the facility?
In reviewing your client's network needs for today and 5 years into the future, you note their current specs call for a 1Gb/s network within a campus environment, with little or no possibility of any increased bandwidth demands until they move to their planned future site. The building is not large, and the cable lengths will not exceed 550 m (1804 ft). Your recommendation for the fiber to be installed in the backbone is:
When designing a campus distribution system involving small buildings with only one horizontal cross-connect (HC) [Floor distributor (FD)] per building, you can eliminate the need for a(n):
A backbone star topology shall have no more than______ level(s) of cross-connections.
Color codes for cross-connection fields have been used for many years. Which color is used to identify network connections?
Class ________ administration provides for the telecommunications infrastructure administration needs of a single building, or of a tenant served by a single or multiple. It also includes administration for backbone cabling, systems, and.
If a telecommunications grounding busbar is installed in the telecommunications room (TR) with the identifier of 310, located on the third floor, then the telecommunications grounding busbar should be labeled as:
For the telecommunications industry, the nominal operating voltage is ________ volts DC.
Which of the following electrical devices is used to convert AC to DC?
A rapid increase in voltage with a duration of half a cycle best describes a(n):
You are designing a cabling system for a chemical plant. What type of device is needed to prevent the spread of fire along the cable other than the barrier penetrations?
Cementitious materials are ________ based materials.
Which of the following is a nonmechanical firestop system?
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 using elliptical waveguide from the antenna to the outside wall of the shelter. The antenna has been designed to be placed 200 ft up on a 250 ft tower. What device will you specify that will best interconnect the two different waveguides?
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?
Which of the following is NOT a primary method of transporting radio signals in an active DAS?
What is the MINIMUM cover for underground conduit?
Vertical conduit masts (with approved service heads) are limited to drop-wire attachments of up to ________ lines.
You are placing an entrance cable between two buildings connected by a conduit 205.3 m (588 ft) in length. What would be the MAXIMUM length of unlisted OSP cable that could be used before you terminate the cable or transition it to a listed cable?
Certain systems must exist relative to bonding and grounding at every site. Which of the following is NOT one such system?
The recommended MAXIMUM value for the bonding resistance between the nearest available grounding electrode and the busbar in an entrance facility (EF) is ________ ohms.
Surge currents due to lightning and other sources MUST be ________ before they penetrate the infrastructure.
What is the frequency rating of an International Organization for Standardization/International Electrotechnical Commission (ISO/IEC) Category 7/Class F cable?
The ability of a conductors insulation to transmit an electric field is called:
What is the testing frequency of a Category 6/Class E cable?
Exhibit:
If a work breakdown structure (WBS) shows the tasks below, what is C, the successor task?
A) Install OSP pathways
B) Install fiber
C) ________.
Which of the following does NOT describe one of the four main types of specifications?
Select the appropriate task to complete the section 2.2 of the work breakdown structure below:
2. Technician
2.1 Install rack
2.2 _________
2.3 Place fiber
2.4 Terminate fiber
2.5 Test fiber
The MINIMUM recommended lighting requirement in a telecommunications room (TR) at the point of cable terminations is:
You are starting work on a new high school. The architect has provided you with a telecommunications room located between the kitchen cold store room and the automotive and welding shops. What should you do?
You are recommending to an architect the location within a telecommunications room for the placement of floor sleeves connecting to the telecommunications room directly below. Where should the sleeves be placed within the room?
In an office area, a consultant needs to add the location of a fax machine to the plan. What is the approximated floor area that a fax machine occupies?
What is the MINIMUM clearance needed between the front of the telephone booth and any wall or fixture for most installations?
Exhibit:
A pay telephone using coins needs to be installed in a public area. In the specifications, it is required that the telephone shall meet the ADA (Americans with Disability Act) requirement for side reach using a wheelchair. What will be the maximum reachable height or the value of "X"?
You must place a cable between 2 equipment locations with separate grounds having a potential difference between them of 2.1 V rms. Which one of the following cables should NOT be used?
A video camera has a coaxial cable output. The video signal is to be distributed to devices that have balanced twisted pair inputs. The transition between these two different transmission media can be accomplished by using a:
Which is an advantage of stranded conductors over solid conductors?