Chapter 5

Using DWDM, a single fiber can carry between what two numbers of channels?​ a. ​60 b. ​80 c. ​160 d. ​200

What two items below are commonly expressed as bits transmitted per second? a. frequency b. ​amplitude c. ​throughput d. ​bandwidth

8. ​What two connector types are typically used to terminate RG-6 and RG-59 cables? a. ​f-connectors b. ​BNC c. ​ST couplers d. J-hooks

Frequencies used to convey speech over telephone lines fall between what two frequencies below?​ a. ​100 Hz b. ​300 Hz c. ​3.3 KHz d. ​5.5 KHz

What is the maximum supported throughput and bandwidth / signal rate of Cat 5e?​ a. ​100 Mbps b. ​1000 Gbps c. ​100 MHz d. ​350 MHz

What term below is used to describe the outer-most layer of protective covering of a coaxial cable? a. ​sheath b. ​shield c. ​braiding d. ​insulation

What Ethernet standard below is also referred to as "thinnet"?​ a. ​100Base2 b. ​10Base2 c. ​100BaseT d. ​10BaseT

What is the minimum category of UTP cable required in order to support Gigabit speeds?​ a. ​Cat 3 b. ​Cat 5 c. ​Cat 5e d. ​Cat 6

. What is the maximum supported throughput of a CAT6 cable?​ a. ​100 Mbps b. ​1 Gbps c. ​10 Gbps d. ​100 Gbps

20. How many cable pairs are needed for 1000Base-T transmission over CAT5e cable?​ a. ​2 b. ​4 c. ​6 d. ​8

Standard PoE devices ​must be provided with how much power in order to function? a. ​5 watts b. ​12 watts c. ​15.4 watts d. ​25.5 watts

What is the maximum distance for 10GBase-ER and 10GBase-EW on a segment of single mode fiber?​ a. ​550m b. ​300m c. 10km d. ​40km

What type of cross-talk occurs between wire pairs near the source of a signal? ​ a. ​far end cross talk b. ​near end cross talk c. ​alien cross talk d. pair migration cross talk

Which of the following connectors is the most common for multimode fiber?​ a. ​ST b. ​SC c. ​FC d. ​MT-RJ

A measure of a signal's strength at any given time is known as which term below? a. ​amplitude b. ​frequency c. ​phase d. ​wavelength

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? a. ​amplitude b. ​frequency c. ​wavelength d. ​phase

WDM divides a beam of light into how many different wavelengths or colors? a. ​10 b. ​20 c. ​30 d. ​40

. Which type of multiplexing is defined by wavelength instead of frequency?​ a. ​CWDM b. ​DWDM c. ​WDM d. ​FDM

. ​Which option below reflects the standard impedance of an RG-6 cable? a. ​50 ohms b. ​60 ohms c. ​65 ohms d. ​75 ohms

Phone companies make use of what type of multiplexing in order to allow for phone services and DSL services over the same line?​ a. ​WDM b. ​FDM c. ​DWDM d. ​CWDM

The most common multiplexing technology used in conjunction with fiber optics is which option below?​ a. ​DWDM b. ​CWDM c. ​FDM d. ​WDM

A device that is responsible for modulating digital signals into analog signals, and demodulating analog signals into digital signals at the receiving end, is known as?​ a. ​A modem b. ​A transceiver c. ​A demuxer d. ​A multiplexer

Ethernet is an example of what type of technology?​ a. ​broadband b. ​baseband c. ​wideband d. ​narrowband

34. Since cable TV and cable ​Internet can share the same coaxial cable, they are considered to be what type of technology? a. ​broadband b. ​baseband c. ​narrowband d. ​wideband

35. Using a form of transmission that allows multiple signals to travel simultaneously over one medium is known as which of the following options?​ a. embedding b. ​multiplexing c. ​coupling d. ​modulating

A Physical layer standard for networks that achieves 1 Gbps over Cat 6 or better cabling using only two pairs of wires.

42. A character encoding system consisting of 128 characters.​ ANSWER:

A term used to refer to a type of twisted-pair cable. All of the category cables fall under the TIA/EIA 568 standard.

A form of transmission that allows multiple signals to travel simultaneously over one medium.​

45. An unwanted connection, such as when exposed wires touch each other.​

Physical layer standard for networks that specifies 1-Gbps transmission over fiber-optic cable using baseband transmission, relying on 1300 nanometer wavelengths.​

47. The distance between corresponding points on a wave's cycle, expressed in meters or feet.

Cross-talk measured at the far end of the cable from the signal source. ​

The amount of data that a medium transmits during a given period of time.

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.​