The MOST common medium used to provide service to the access point (AP) is ________ cable.
What is the MINIMUM number of outside building terminal pedestals required to serve a single story office, or office warehouse structure that has ten 18.3 m x 24 m (60 ft x 80 ft) units and the total building length is 183 m (600 ft)?
To reduce the chance of an accidental dig-up, plastic warning tape should be placed a MINIMUM of _________ below grade, but high enough above cables to allow detection before cables are damaged.
Where backbone cabling exceeds cabling lengths for the same performance or design (for product used in horizontal cabling), there are three fundamental tests which should be considered when testing. They are:
You have been asked to test and troubleshoot an installed base of cabling that is believed to be causing network problems. You are finding that there are high levels of return loss upon initial testing. What testing will best determine the reasons for these failures?
When balanced twisted-pair copper cabling, return loss is a measurement of the:
Which is an advantage of stranded conductors over solid conductors?
Assume that the optical power transmitted by a 62.5/125 multimode fiber is distributed uniformly across its core. If this fiber is perfectly coupled (i.e., the two fibers are aligned and abutted) to a 50/125 fiber, what is the percent of power that is lost?
A reasonable approximation for the signal speed in 100 ohm balanced twisted pair cable is __________, where c is the velocity of light in free space.
An active video converter is used in what type of CATV cable distribution system?
Active video converters are required for what type of CATV distribution system?
You are designing a building with a combination of Class A commercial office spaces and residences. The design program requires having unlimited cable channels available at all outlet locations. What distribution system topology will NOT provide adequate channel distribution to each location?
What is the expected life cycle, in years, of building automation system within a building structure with a life cycle of 40+ years?
Within a heating ventilation and air conditioning automatic control system, what do the letters DDC stand for?
What type of facility requires a building automation system (BAS) device to be located every 5 sq m (50 sq ft)?
What is the International Organization for Standardization/International Electrotechnical Commission ISO/IEC class rating for American National Standards Institute/Telecommunication Industry Association (ANSI/TIA) Category 5e cable?
There are three buildings approximately 400 meters apart and the customer wants to use 10 Gig Ethernet. What fiber should be specified for this application?
What type of fiber optic cable is manufactured to protect individual glass strands and is primarily designed for use inside buildings?
To accommodate telephone, data, CATV, security and multimedia, a MINIMUM of ________ strands of optical fiber auxiliary disconnect outlet (ADO) cable should be provided.
You are designing distribution for a seven unit townhouse with in slab conduits. What is the MINIMUM number of 27 mm (1 in) rigid PVC Type 2 or metallic conduit that is required to satisfy distribution to each unit?
You are designing a system requiring the transmission of data. Your system must perform higher than ________ kHz in order to do so.
A properly designed distributed paging system will provide a sound pressure level (SPL) for audio paging that is between ________ above ambient noise level.
What is the recommended distance between ceiling mounted speakers in a hallway with heavy traffic?
What are the three typical voltages used in centrally amplified paging systems?
You are required by architectural design to place UTP cables in the same space as unshielded power lines. How should you proceed with the placement of your cables?
Which of the following is NOT a form of signal coupling between two (2) circuits?
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?
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.
Color codes for cross-connection fields have been used for many years. Which color is used to identify network connections?
Assume the following:
- An equipment room (ER) consists of 16 racks arranged in 4 equal rows
- The first 4 racks are numbered R1-1 though R1-4
- The second 4 racks are numbered R2-1 through R2-4
- A new equipment shelf with 12 slots is to be installed in the bottom of the third rack in the second row
- Each slot has 2 ports
What would be the identifier of the two ports on the eighth slot of the new equipment shelf?
Assuming the total fill capacity of a pathway is 100 cables (all of the same cable type and size), the MAXIMUM number of cables to be installed during the initial installation, without exceeding the fill ratio is:
Which of the following is NOT a type of connector for optical fiber?
In a run requiring 15 m (50 ft) of cable between the floor distributor and the consolidation point, the MAXIMUM length of cable allowed between the CP and the telecommunications outlet is:
When installing a heavy backbone cabling vertically, recommended methods of securing the cable include all of the following EXCEPT:
One of the advantages of using optical fiber in the backbone installation is:
A campus backbone design linking two buildings requires that you install a high-fiber-count cable very quickly, using the conduit system provided. Cost is not so much an issue as urgency is to meet a service demand. Your first choice of fiber cable installation is to use:
Which layer of the OSI model covers physical cable connections?
The loop distance range in an "ethernet in the first mile" (EFM) design is:
A ______ intercepts a file and stores it temporarily in queue until a peripheral device (e.g. printer) is available.
The recommended ratio of patch panels to horizontal cable management panels is ________ RU of patch panel to ________ rack unit (RU) of horizontal cable management panel.
Which of the following types of conduit uses set screw couplings and connectors?
What is the MINIMUM ceiling height of a telecommunications room?
A conduit run is installed from the ER to a TR. It has two (2) 90 degree bend and a length of 20 m (65 ft). What will be the MINIMUM test rating of the pull cord left in the conduit?
The standard floor space coverage area for each building automation system (BAS), is a BAS outlet or device for every_______ of floor space.
You are designing a horizontal distribution system that will have a zone box located 71.6 m (235 ft) away from the telecommunications room (TR). A 50 mm (2 in) conduit is designed from the TR to a pull box located 36.6 m (120 ft) away from the TR. A 1 1/2 inch conduit is designed from the pull box to the zone box located 35.1 m (115 ft) beyond the pull box. Assuming no conduit bends, and excluding the TR and zone box, what is the total number of pull boxes/pull points required in this horizontal conduit system between the telecommunications room (TR) and zone box?
Often associated with raised flooring, a(n) ________ may consist of copper straps taped to the concrete floor, or it may be the floor itself with the stringers that support the tiles acting as the bonding conductor across the gradient of the floor.
As a guide, the MAXIMUM recommended DC current value on any bonded conductor should be less than:
The impedance of the equipment grounding conductor can only be accurately measured with an instrument known as a(n):
You have been asked to spec the physical security requirements related to the protection of assets for a new data center. The most common potential for damage categories you have considered include temperature, gases, organisms and projectiles. The one category that you have missed is:
Within a data center, if you have dual path connectivity between the primary entrance room and secondary entrance room, in addition to dual connectivity between these two rooms and the main distribution and secondary distribution areas, what tier level would this infrastructure design represent?
If you are working on a physical security plan for a data center and focusing on building and access control, what layer of the plan would this relate to?
For an analog camera, what is the normal frame rate in frames per second?
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?