Digital signals are composed of pulses of precise, positive voltages and zero voltages.​
answer
True
question
Because digital signals do not depend on amplitude or frequency differences to communicate information, they are more vulnerable to EMI noise.​
answer
False
question
What two items below are commonly expressed as bits transmitted per second?
answer
​throughput, ​bandwidth
question
​What two connector types are typically used to terminate RG-6 and RG-59 cables?
answer
​f-connectors, ​BNC
question
What is the maximum supported throughput and bandwidth / signal rate of Cat 5e?
answer
1000 Mbps
question
What Ethernet standard below is also referred to as "thinnet"?​
answer
​10Base2
question
How many cable pairs are needed for 1000Base-T transmission over CAT5e cable?​
answer
​4
question
Standard PoE devices ​must be provided with how much power in order to function?
answer
​15.4 watts
question
What type of cross-talk occurs between wire pairs near the source of a signal? ​
answer
​near end cross talk
question
Which of the following connectors is the most common for multimode fiber?​
answer
​MT-RJ
question
​A measure of a signal's strength at any given time is known as which term below?
answer
​amplitude
question
The number of times that a wave's amplitude cycles from its starting point, through its highest amplitude and its lowest amplitude, and back to its starting point over a fixed period of time, is known as ​what term below?
answer
​frequency
question
Phone companies make use of what type of multiplexing in order to allow for phone services and DSL services over the same line?​
answer
​FDM
question
The most common multiplexing technology used in conjunction with fiber optics is which option below?​
answer
​DWDM
question
Since cable TV and cable ​Internet can share the same coaxial cable, they are considered to be what type of technology?
answer
​broadband
question
The amount of data that a medium transmits during a given period of time.
answer
​throughput
question
An unwanted connection, such as when exposed wires touch each other.​
answer
short circuit​
question
A multiplexing technique used over single-mode or multimode fiber-optic cable in which each signal is assigned a different wavelength for its carrier wave.​
answer
​DWDM (Dense Wavelength Division Multiplexing)
question
A Physical layer standard for networks that
achieves 1 Gbps over Cat 6 or better cabling using only two
pairs of wires.
answer
1000Base-TX​
question
Physical layer standard for networks that specifies 1-Gbps transmission over fiber-optic cable using baseband transmission, relying on 1300 nanometer wavelengths.​
answer
​1000Base-LX
question
A character encoding system consisting of 128 characters.​
answer
​ASCII
question
A form of transmission that allows multiple signals to travel simultaneously over one medium.​
answer
​multiplexing
question
The distance between corresponding points on a wave's cycle, expressed in meters or feet.
answer
wavelength
question
A term used to refer to a type of twisted-pair cable. All of the category cables fall under the TIA/EIA 568 standard.Cross-talk measured at the far end of the cable from the signal source. ​
answer
Cat (category)​
question
Cross-talk measured at the far end of the cable from the signal source. ​
answer
far end cross-talk (FEXT)​
Haven't found what you need?
Search for quizzes and test answers now
Quizzes.studymoose.com uses cookies. By continuing you agree to our cookie policy