Deck 3: Networking Media

Question 1

Shielding works like a form of built-in ____, a type of metal or plastic pipe built specifically to contain cabling.

A)braiding
B)sheath
C)insulation
D)conduit

Answer 1

D

Question 2

____ transmission systems use analog techniques to encode binary 1s and 0s across a continuous range of values.

A)Direct sequence
B)Electromagnetic
C)Baseband
D)Broadband

Answer 2

D

Question 3

Coaxial cable consists of a single conductor at the core, surrounded by an insulating layer, braided metal shielding, and an outer cover (usually called the ____).

A)braiding
B)sheath
C)insulation
D)conduit

Answer 3

B

Question 4

Whether STP or UTP, twisted-pair network cabling most commonly uses ____ connectors to plug into computer network interfaces or other networked devices.

A)BNC
B)MT-RJ
C)RJ-45
D)RJ-11

Question 5

____ transmission uses a digital encoding scheme at a single fixed frequency, where signals take the form of discrete pulses of electricity or light.

A)Analog
B)Electromagnetic
C)Baseband
D)Broadband

Question 6

Terrestrial microwave systems use tight-beam, high-frequency signals to link sender and receiver.

Question 7

The 1997 802.16 Wireless Networking Standard is also referred to as Wireless Fidelity (Wi-Fi).

Question 8

The cable plant is the combination of installed network cables, connectors, patch panels, wall jacks, and other media components.

Question 9

Each type of cable can transport data only so far before its signal begins to weaken beyond where it can be read accurately; this phenomenon is called ____.

A)attenuation
B)bandwidth
C)insertion loss
D)latency

Question 10

Spread-spectrum radio addresses several weaknesses of single-frequency communications, whether high or low power.

Question 11

10Base5 refers to ____.

A)thicknet
B)thinnet
C)Category 5 UTP
D)Category 6 UTP

Question 12

Fiber-optic cable eliminates the possibility of electronic eavesdropping.

Question 13

____ are special RJ-45-terminated TP cables that permit modular cables to stretch between wall plates and equipment.

A)Jack couplers
B)Wall plates
C)Patch panels
D)Patch cables

Question 14

10BaseT refers to ____.

A)TP
B)UTP
C)STP
D)ScTP

Question 15

The bend radius of fiber-optic cable is ____ degrees per foot.

A)15
B)30
C)45
D)60

Question 16

Category ____ cable is labeled as voicegrade.

A)1
B)2
C)3
D)4

Question 17

The frequency of the wave forms used for communication is measured in cycles per second usually expressed as Watts.

Question 18

The maximum cable length for Category 5, 5e and 6 UTP cables is 200 meters.

Question 19

____ encloses each pair of wires within a foil shield as well as an enclosing insulating sheath.

A)TP
B)UTP
C)STP
D)ScTP

Question 20

Category ____ cable is labeled as datagrade.

A)1
B)2
C)3
D)4

Question 21

With respect to structured cabling, the ____ is where computer workstations and other user devices are located.

A)work area
B)telecommunications closet
C)equipment room
D)entrance facility

Question 22

Instead of aiming at transmitters or receivers within a clear line of sight on the ground, satellite microwave systems send and receive data from ____________________ satellites that maintain fixed positions in the sky.

Question 23

Infrared transmissions are being used increasingly for ____________________ connections that enable portable computing devices to communicate with wired computers or peripheral devices, such as printers.

Question 24

Direct-sequence modulation breaks data into fixed-size segments called ____________________ and transmits the data on several different frequencies at the same time.

Question 25

A(n)____________________ cable is used to connect a computer's network interface card to a jack in the work area or to connect from a patch panel to a hub or switch in the wiring closet.

Question 26

EMI stands for ______________________________.

Question 27

The TIA/EIA developed the document "____ Commercial Building Wiring Standard", which specifies how network media should be installed to maximize performance and efficiency.

A)11
B)45
C)568
D)802

Question 28

____ is not a fiber-optic connector.

A)BNC
B)ST
C)SC
D)LC

Question 29

____ is not a fiber-optic connector.

A)MIC
B)SMA
C)MT-RJ
D)RJ-45

Question 30

Coaxial cable is often called "____________________" for short.

Question 31

IEEE stands for __________________________________________________.

Question 32

With respect to structured cabling, the ____ houses servers, routers, switches, and other major network equipment and serves as a connection point for backbone cabling running between TCs.

A)work area
B)cable plant
C)equipment room
D)entrance facility

Question 33

With respect to structured cabling, the ____ provides connectivity to computer equipment in the nearby work area.

A)cable plant
B)telecommunications closet
C)equipment room
D)entrance facility

Question 34

What is structured cabling? What are its components?

Question 35

What is the difference between mid-split and dual-cable broadband?

Question 36

What is the role of wall plates in a wiring center?

Question 37

With respect to network cabling, what do the terms thicknet and thinnet mean?

Question 38

With respect to structured cabling, a(n)____ is the location of the cabling and equipment that connects a corporate network to a third-party telecommunications provider.

A)work area
B)cable plant
C)equipment room
D)entrance facility

Question 39

Describe the twisted-pair (TP)cable network media.

Question 40

The ____ Worldwide Interoperability for Microwave Access (WiMax)standard, comes in two flavors.

A)802.3
B)802.5
C)802.11
D)802.16

Question 42

What is the role of wireless bridges?

Question 43

With respect to structured cabling, what is the role of backbone cabling?

Question 44

How do narrowband radio LAN technologies work?

Question 45

What is mobile WiMax?

Question 46

With respect to structured cabling, what is the role of horizontal wiring?