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CompTIA Network+ N10-008 > CH2 - Course Quiz > Flashcards

CH2 - Course Quiz Flashcards

1
Q

Multimode Fiber cables transmit ______ wavelengths?

600-nm
1310-nm
1550-nm
850-nm

A

850-nm

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2
Q

Which fire cable rating has no significant fire protection?

Cable with a Fiber Rating
Cable with a Polyvinyl Chloride (PVC) Rating
Cable with a Riser Rating
Cable with a Plenum Rating

A

Cable with a Polyvinyl Chloride (PVC) Rating

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3
Q

Which type of cable works best for long-distance transmissions?

Coaxial
Fiber-Optic
Unshielded Twisted Pair (UTP)
Shielded Twisted Pair (STP)

A

Fiber-Optic

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4
Q

Because most Networks can run at speeds of up to 1000 Mbps, most new Cabling installations use which category of cabling?

Cat 6
Cat 3
Cat 5e
Cat 5

A

Cat 6

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5
Q

Which first-generation Network Topology used a Single Cable that connected all the computers in line?

Bus
Mesh
Ring
Star

A

Bus

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6
Q

In a partially meshed topology Network, at least two machines have redundant connections?

True
False

A

True

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7
Q

Which IEEE Standard sets the standards for Wireless LAN Networks?

  1. 3
  2. 2
  3. 11
  4. 5
A

802.11

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8
Q

A _______ cable that uses LEDs is known as Multimode Fiber (MMF)?

Fiber-Optic
Category 6a (CAT6a)
50 Ohm
Single-Mode

A

Fiber-Optic

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9
Q

Plenum cable provides less protection than Riser-Rated Cable?

True
False

A

False

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10
Q

What type of Fiber-Optic cable uses Lasers to send signals?

Signle-Mode Fiber (SMF)
Multimode Fiber (MMF)
Cat 6
Triplex Fiber (TF)

A

Single-Mode Fiber (SMF)

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11
Q

The two types of Meshed topologies are partially meshed and wholly meshed?

True
False

A

False

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12
Q

A type of fire rating know as _______ designates the proper cabling to use for vertical runs between floors and buildings?

Riser
Attac
Plenum
Crawl Area

A

Riser

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13
Q

Which type of cable is used a two-number designator consisting of core and cladding measurements?

Fiber-Optic
Shielded Twisted Pair (STP)
Coaxial
Unshielded Twisted Pair (UTP)

A

Fiber-Optic

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14
Q

Which term describes a practical application of a topology and other critical technologies that provides a method to get data from one computer to another on a Network?

Network Topology
Hybrid Topology
Bus Topology
Segmented Topology

A

Network Topology

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15
Q

Fiber-Optic cable is attractive for use in High Electromagnetic Interference (EMI) areas?

True
False

A

True

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16
Q

Describe how the first-generation Ring Topology connected computers?

A

Ring Topology Network connected all computers on the Network with a Ring of Cable.

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17
Q

What are the two basic types of Twisted Pair Cabling manufactured today?

A

UTP - Unshielded Twisted Pair

STP - Shielded Twisted Pair

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18
Q

What two hybrid topologies achieved any amount of popularity?

A

Star + Ring

Star + Bus

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19
Q

What do the IEEE 802.11 subcommittee standards define?

A

Wireless LAN/WLAN Networks

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20
Q

Explain Hybrid Networking Topology?

A

Any form of Networking Technology that combines a Physical Topology with a Signalling Topology is called a Hybrid Topology.

21
Q

The ______ and MT-RJ Fiber Connectors are always Duplex, meaning both the Send and Receive cables are attached?

A

LC

22
Q

Fiber Optics defines the wavelength of light used, measured in ________?

A

nanometers (nm)

23
Q

In a ________ topology Network, every computer connects to every other computer via two or more routes?

A

Mesh

24
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 (And EMI - Electromagnetic Interference)

25
Q

The _________ standard defines the nomenclature for Fiber?

A

ANSI/TIA-568.3-D

26
Q

Almost all Network technologies that use Fiber-Optic cable require pairs of Fibers?

True
False

A

True

27
Q

Which First-Gen Network Topology provided Fault Tolerance?

Ring
Star
Bus
Hub

A

Star

28
Q

What is the space between the acoustical tile ceiling in an office building and the actual concrete ceiling above called?

facia
riser
plenum
softlift

A

plenum

29
Q

What is the meaning of the term “capacitance”?

how much throughput the cable is capable of providing
how much bandwidth the cable can support
how much cable can resist the flow of electricity
how long it takes a wire to get a full charge

A

how long it takes a wire to get a full charge

30
Q

The most common type of Cabling used in Networks today consists of Fiber-Optic cables?

True
False

A

False

31
Q

Which cable type suffers from Electromagnetic Interference (EMI)?

Coaxial
Fiber-Optic
Unshielded Twisted Pair (UTP)
Shielded Twisted Pair (STP)

A

Unshielded Twisted Pair (UTP)

32
Q

In response to the demand for two-pair cabling, manufacturers often connect two fibers together to create _____ Fiber-Optic cabling?

duplex
single-mode
RG-8
modal

A

duplex

33
Q

Which term refers to a relative measure of the resistance (or more precisely, characteristic impedance) on a cable?

Radio Guide (RG) Rating
Number of Twisted Pairs
Ohm Rating
Category (CAT) Rating

A

Ohm Rating

34
Q

Cat ratings are officially rated in _______, indicating the highest frequency the cable can handle?

bytes per second
megahertz (MHz)
nanos
Ohms

A

megahertz (MHz)

35
Q

The most popular cable for early bus topology Networks used special bayonet-style connectors called _______ connectors?

parallel
BNC
Firewire
serial

A

BNC

36
Q

A manufacturer selling boxed reels of Unshielded Twisted Pair (UTP) cabling will clearly mark the cable’s category rating on the connectors at the end of the cable?

True
False

A

False

37
Q

What does it mean if Fiber-Optic cable is designated as 62.5/125 um?

A

Indicates the size of the Fiber Core (62.5 um) and the size of the Cladding (125 um).

38
Q

Describe the difference between Physical and Logical Topology?

A 
Physical = Physical Layout of the Network Media
Logical = How the signals travel electronically (Signaling Topology) throughout the Network
39
Q

What impact does electro-magnetic interference (EMI) have on a Wired Network?

A

Huge impact, it can cause the Network to totally shut down.

40
Q

Briefly describe how to remember the ST, SC, and LC Fiber-Optic Connectors for the exam?

A 
ST = Snap and Twist
SC = Stick and Click, straight push in.
LC = Little Connector (They are 2 Connectors built as 1 Little Connector)
41
Q

The IEEE 802.3 subcommittee defines standards for ________?

A

Ethernet-based Networks

42
Q

Almost all Network Technologies that use Fiber-Optic cable require _________ of fibers?

A

pairs

43
Q

What modern topology can be used to connect Wireless Devices?

A

Mesh

44
Q

Name 3 Historical Network Topologies considered to be long dead and name 2 Network Topologies considered to be more Modern?

A 
DEAD = Bus, Ring, Star
MODERN = Hybrid, Mesh
45
Q

What happens when a cable breaks in a Star Topology Network?

A

If one cable breaks, all of the other computers can still communicate due to Star Topology having Fault Tolerance.

46
Q

Within a Star Network, Fault ________ allows all of the other computers to communicate if one of the cables breaks?

A

Tolerance

47
Q

Any form of Networking Technology that combines a Physical Topology with a Signaling Topology is called _______ Topology?

A

Hybrid

48
Q

Each IEEE Subcommittee is officially called a __________, except for a few that are listed as Technical Advisory Group (TAG)?

A

Working Group

49
Q

The most common form of cabling uses ________ wires wrapped up in some kind of protective sheathing?

A

copper

CompTIA Network+ N10-008 (32 decks)

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