AND ANSWERS GRADED A+
✔✔TR - ✔✔Telecommunications room - serves one floor
✔✔TE - ✔✔A TE is a subset of a TR that generally serves a limited space. NOT TO BE
USED TO REPLACE A TR
✔✔Normal rack height and width? - ✔✔7 feet tall and 19/23 inches wide
✔✔Conduit fill ratio - ✔✔40 percent for new installation, not to exceed 60 percent
✔✔J-hooks - ✔✔Typically used to hold up to 50 cables. Placed every 4-5 feet to
support cable
✔✔Surface Mount Box types - ✔✔Shallow, Standard, and Deep
✔✔What are the six elements of professionalism listed in the ITSIMM - ✔✔
✔✔An installer should _ in public, and _ in private - ✔✔Praise. Correct.
✔✔Cabling installation companies are dependent on _ for new and repeat business -
✔✔Customers
✔✔What are the percentages of communication perception? - ✔✔Body language - 55%
Tone of voice - 38%
Word choice - 7%
✔✔What are three ways to minimize EMI? - ✔✔Using shielded cable (STP)
Using fiber instead of copper
Putting the cable in conduit (shielded pathway)
✔✔1 sine wave = _ - ✔✔1 Hz
✔✔The number of cycles a signal is repeated in a given time period is defined as the _ -
✔✔Frequency
✔✔10,000 MHz = _ GHz - ✔✔10
✔✔An analog signal varies in what two aspects? - ✔✔amplitude and frequency
✔✔What device converts a computers digital signals into 1s and 0s into two separate
analog frequencies for transmission on a standard telephone line? - ✔✔Modem
, ✔✔What type of coaxial cable is used for video in backbone distribution? - ✔✔Series 11
✔✔What type of BNC connector is not recommended for any install? - ✔✔Screw on
✔✔What type of coaxial connector cannot be used with cables that have stranded
center conductors? - ✔✔F connectors
✔✔What type of construction allows the cable jacket to expand and contract with
changes in temperature without affecting the fibers? - ✔✔Loose tube
✔✔What are the two ways of coupling fibers? - ✔✔plug to plug
plug to jack
✔✔Hierarchy of codes, standards, and regulations - ✔✔AHJ
Codes and regulations
Standards
Industry best practices
Manufacturer instructions
✔✔What are the two common depths for telecommunications racks? - ✔✔4 inch and 6
inch
✔✔a _ conduit terminates in a vertical orientation - ✔✔stub-up
✔✔a _ conduit terminates in a horizontal orientation - ✔✔stub-out
✔✔How many backbone levels are in a horizontal cabling system? - ✔✔2 levels
✔✔What is the minimum number of cables per work area? - ✔✔2, voice and data
✔✔What is the maximum length of a patch cord? - ✔✔16.5 ft
✔✔What is the maximum length of a horizontal optical fiber cable? - ✔✔295 ft
✔✔Undercarpet cable is - ✔✔not recommended
✔✔Whats the purpose of a consolidation point (CP)? - ✔✔allows horizontal cabling to
be extended into work area pathways
✔✔Tags - ✔✔attached to mounting surface
✔✔Label - ✔✔consist of face stock material