Chapter 2 Flashcards

1
Q

Which topologies require termination?

A

in a BUS topology, all computers connected to the network via a main line. The cable had to be terminated at both ends to prevent signal reflection.

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2
Q

Star-Bus is an example of a _____ topology?

A

Star-bus is a HYBRID topology because it uses a star physical topology and a bus signal topology.

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3
Q
Of the topologies listed, which one is the most fault-tolerant?
A. Point-to-Point
B. Bus
C. Star
D. Ring
A

Star is the only topology that has any fault tolerance.

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4
Q

What term is used to describe the inter-connectivity of network components?

A

Topology is the term used to describe the inter-connectivity of network components.

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5
Q

Coaxial cables all have a(n)_____ rating.

A

All Coaxial cables have an Ohm Rating. RG-69 and RG-6 both are rated at 75 Ohm.

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6
Q
Which of the following is a type of coaxial cable?
A. RJ-45
B. RG-59
C. BNC
D. Barrel
A

RG-59 is a type of coaxial cable

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7
Q

Which network topology connected nodes with a ring of a cable?

A

The aptly named Ring Topology connected nodes with a central ring of cable.

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8
Q

Which network topology is most commonly seen only in wireless network?

A

Mesh is, for the most part, unique to wireless networks.

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9
Q
Which of the following is a duplex fiber-optic connection?
A. LC
B. RJ-45
C. ST
D. SC
A

Only the LC connector is designed for duplex fiber-optics.

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10
Q

What is the most common category of UTP used in new cabling installations?

A

Cat 6 is the most common cabling category used today, although Cat 6a and Cat 7 are gaining in popularity.

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11
Q

What Topology connects all devices in a line?

A

Bus - that connects all the computers in a line.

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12
Q

What Topology stops the data flow if there is a break in the network?

A

Ring - A break in a ring topology network simply broke the circuit, stopping the data flow.

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13
Q

what topology has a central connection box for all computers on the network?

A

Star - Uses a central connection box for all the computers connected on the network.

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14
Q

If one of the cables broke, all of the other computers could still communicate. What is this called?

A

Fault Tolerance

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15
Q

From how the signal travel electronically is called?

A

Logical Topology

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16
Q

We separate how the cable physically look is called?

A

Physical Topology

17
Q

Any form of networking technology that combines a physical topology with a signaling topology is called a?

A

Hybrid Topology

18
Q

Two machines have redundant connections. Every machine doesn’t have to connect to every other machine. This is called?

A

Partially Meshed Topology

19
Q

Every computer connects directly to every other computer is called?

A

Fully Meshed Topology

20
Q

What are the two primary types of copper cabling used in the industry?

A

Coaxial and Twisted Pair

21
Q

All coax cables have a ___ rating?

A

Radio Guide (RG) rating

22
Q

What type of connectors do RG-59 and RG6 use?

A

F-type (F-Connector)

23
Q

Using a pair of twisted wires rather than a single wire to send a signal reduces a specific type of interference, called?

A

Crosstalk

24
Q

What does STP stand for?

A

Shielded Twisted Pairs

25
Q

What does UTP stand for?

A

Unshielded Twisted Pair

26
Q

Cat ratings are officially rated in?

A

Megahertz (MHz)

27
Q

What are the ratings for Cat3?

A

16MHz

16Mbps

28
Q

What are the ratings for Cat5?

A

100MHz

100Mbps

29
Q

What are the ratings for Cat5e?

A

100MHz

1Gbps

30
Q

What are the ratings for Cat6?

A

250MHz

10Gbps

31
Q

What are the ratings for Cat6a?

A

500MHz

10Gbps

32
Q

What are the ratings for Cat7?

A

600MHz

10+Gbps

33
Q

What connectors do Telephone use?

A

RJ-11

34
Q

Transmits light rather than electricity, making it attractive for both high-EMI areas and long-distance transmissions is called?

A

Fiber-Optic Cable

35
Q

What are the four components in Fiber-Optic Cable?

A
  1. The Glass
  2. Cladding - Makes the light reflect down the fiber.
  3. Buffer - Material to give strength.
  4. Insulating Jacket
36
Q

What is it called when you connect to fiber-optic cables together?

A

Duplex Fiber-Optic Cable

37
Q

A fiber-Optic cable that uses LEDs is known as?

A

Multimode Fiber (MMF)

38
Q

A fiber-Optic cable that uses lasers is known as?

A

Single-mode fiber (SMF)