Question 1

Describe twisted-pair cabling.

Accepted Answer

Twisted-pair cable is composed of small copper wires that are covered with an insulating material. Each wire is twisted with another, and this pair is color-coded. One wire is a solid color and the other is white with a stripe of the same solid color. One pair to four pairs of wires-each of a different solid color-are bundled together and encased in an outer jacket.

Question 2

In an MDI device, which two pins does the device use to transmit?

Accepted Answer

A)   1 and 2
B)   3 and 4
C)   4 and 6
D)   3 and 6 A

Question 3

Match each item with a statement below.
a.cable plant
b.horizontal wiring
c.hertz
d.patch cable
e.backbone cabling
f.encoding
g.differential signal
h.IrDA device
i.IDF
j.MDF
-an equipment and cabling room that serves as the connecting point for backbone cabling between buildings and between IDFs

Accepted Answer

j

Question 4

What is the maximum cable length for both category 5e and category 6 UTP cable?

Accepted Answer

A)   10 m
B)   20 m
C)   100 m
D)   1000 m

Question 5

What is the maximum bandwidth for a network cable using category 5e UTP cable?

Accepted Answer

A)   10 Mbps
B)   16 Mbps
C)   100 Mbps
D)   1000 Mbps

Question 6

An Ethernet cable runs across a warehouse that is 120 meters in length. The bit signals are so weak that they cannot be accurately read by the receiving station. What is the term for this problem?

Accepted Answer

A)   electromagnetic interference
B)   crosstalk
C)   attenuation
D)   radio frequency interference

Question 7

You are running a length of fiber optic cable between two wiring closets. What best describes the cable you are running?

Accepted Answer

A)   structured cable
B)   backbone cable
C)   horizontal cable
D)   work area cable

Question 8

What is structured cabling and why should you use it?

Accepted Answer

The answer of What is structured cabling and why should...

Question 9

What really determines the ________ of a cabling type is how fast a transmitting device, such as a NIC, can generate bit signals on the medium

Accepted Answer

The answer of What really determines the ________ of a...

Question 10

Which type of wireless technology bounces transmissions off walls and ceilings to deliver signals from sender to receiver and is often used with TV remotes?

Accepted Answer

A)   scatter infrared
B)   laser
C)   narrowband radio
D)   microwave

Question 11

What is a disadvantage of using fiber-optic cabling versus twisted-pair cabling?

Accepted Answer

A)   limited to shorter distances due to high attenuation
B)   low bandwidth potential
C)   high susceptibility to eavesdropping
D)   more expensive terminations

Question 12

Match each item with a statement below.
a.cable plant
b.horizontal wiring
c.hertz
d.patch cable
e.backbone cabling
f.encoding
g.differential signal
h.IrDA device
i.IDF
j.MDF
-use infrared signals to communicate

Accepted Answer

The answer of Match each item with a statement below.
a.cable...

Question 13

Match each item with a statement below.
a.cable plant
b.horizontal wiring
c.hertz
d.patch cable
e.backbone cabling
f.encoding
g.differential signal
h.IrDA device
i.IDF
j.MDF
-connects a patch panel port to a switch or hub

Accepted Answer

The answer of Match each item with a statement below.
a.cable...

Question 14

The length of cable between the wall jack and a patch panel is called vertical cabling.

Accepted Answer

A) True 
 B)False

Question 15

Match each item with a statement below.
a.cable plant
b.horizontal wiring
c.hertz
d.patch cable
e.backbone cabling
f.encoding
g.differential signal
h.IrDA device
i.IDF
j.MDF
-all the cables and connectors that tie a network together

Accepted Answer

The answer of Match each item with a statement below.
a.cable...

Question 16

Match each item with a statement below.
a.cable plant
b.horizontal wiring
c.hertz
d.patch cable
e.backbone cabling
f.encoding
g.differential signal
h.IrDA device
i.IDF
j.MDF
-a telecommunications closet that houses the cabling and devices for work area computers

Accepted Answer

The answer of Match each item with a statement below.
a.cable...

Question 17

Match each item with a statement below.
a.cable plant
b.horizontal wiring
c.hertz
d.patch cable
e.backbone cabling
f.encoding
g.differential signal
h.IrDA device
i.IDF
j.MDF
-expresses how many times per second a signal or electromagnetic wave occurs

Accepted Answer

The answer of Match each item with a statement below.
a.cable...

Question 18

Which of the following are types of infrared LANs? (Choose all that apply.)

Accepted Answer

A)   microwave
B)   narrowband
C)   line-of-sight
D)   reflective
E)   scatter

Question 19

You are asked to make an inventory of all the cables and connections in your network. What are you being asked to inventory?

Accepted Answer

A)   telecommunications closets
B)   horizontal wiring
C)   work areas
D)   cable plant

Question 20

Compared to SMF, MMF cable costs more and generally works with laser-based emitters but spans the longest distances and is used in higher-bandwidth applications.

Accepted Answer

A) True 
 B)False

Exam 4: Network Media

Describe twisted-pair cabling.

In an MDI device, which two pins does the device use to transmit?

Match each item with a statement below. a.cable plant b.horizontal wiring c.hertz d.patch cable e.backbone cabling f.encoding g.differential signal h.IrDA device i.IDF j.MDF -an equipment and cabling room that serves as the connecting point for backbone cabling between buildings and between IDFs

What is the maximum cable length for both category 5e and category 6 UTP cable?

What is the maximum bandwidth for a network cable using category 5e UTP cable?

An Ethernet cable runs across a warehouse that is 120 meters in length. The bit signals are so weak that they cannot be accurately read by the receiving station. What is the term for this problem?

You are running a length of fiber optic cable between two wiring closets. What best describes the cable you are running?

What is structured cabling and why should you use it?

What really determines the ________ of a cabling type is how fast a transmitting device, such as a NIC, can generate bit signals on the medium

Which type of wireless technology bounces transmissions off walls and ceilings to deliver signals from sender to receiver and is often used with TV remotes?

What is a disadvantage of using fiber-optic cabling versus twisted-pair cabling?

Match each item with a statement below. a.cable plant b.horizontal wiring c.hertz d.patch cable e.backbone cabling f.encoding g.differential signal h.IrDA device i.IDF j.MDF -use infrared signals to communicate

Match each item with a statement below. a.cable plant b.horizontal wiring c.hertz d.patch cable e.backbone cabling f.encoding g.differential signal h.IrDA device i.IDF j.MDF -connects a patch panel port to a switch or hub

The length of cable between the wall jack and a patch panel is called vertical cabling.

Match each item with a statement below. a.cable plant b.horizontal wiring c.hertz d.patch cable e.backbone cabling f.encoding g.differential signal h.IrDA device i.IDF j.MDF -all the cables and connectors that tie a network together

Match each item with a statement below. a.cable plant b.horizontal wiring c.hertz d.patch cable e.backbone cabling f.encoding g.differential signal h.IrDA device i.IDF j.MDF -a telecommunications closet that houses the cabling and devices for work area computers

Match each item with a statement below. a.cable plant b.horizontal wiring c.hertz d.patch cable e.backbone cabling f.encoding g.differential signal h.IrDA device i.IDF j.MDF -expresses how many times per second a signal or electromagnetic wave occurs

Which of the following are types of infrared LANs? (Choose all that apply.)

You are asked to make an inventory of all the cables and connections in your network. What are you being asked to inventory?

Compared to SMF, MMF cable costs more and generally works with laser-based emitters but spans the longest distances and is used in higher-bandwidth applications.