CompTIA Network+ N10-008 CH2 - Course Quiz
Multimode fiber typically uses 850-nm and sometimes 1300-nm wavelengths for data transmission. The 850-nm wavelength is most common and is used with LEDs for short-distance communication.
Multimode Fiber cables transmit ______ wavelengths?
600-nm
1310-nm
1550-nm
850-nm
850-nm
Key Terms
Multimode Fiber cables transmit ______ wavelengths?
600-nm
1310-nm
1550-nm
850-nm
850-nm
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
Cable with a Polyvinyl Chloride (PVC) Rating
Which type of cable works best for long-distance transmissions?
Coaxial
Fiber-Optic
Unshielded Twisted Pair (UTP)
Shielded Twisted Pair (STP)
Fiber-Optic
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
Cat 6
Which first-generation Network Topology used a Single Cable that connected all the computers in line?
Bus
Mesh
Ring
Star
Bus
In a partially meshed topology Network, at least two machines have redundant connections?
True
False
True
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| Term | Definition |
|---|---|
Multimode Fiber cables transmit ______ wavelengths? 600-nm | 850-nm |
Which fire cable rating has no significant fire protection? Cable with a Fiber Rating | Cable with a Polyvinyl Chloride (PVC) Rating |
Which type of cable works best for long-distance transmissions? Coaxial | Fiber-Optic |
Because most Networks can run at speeds of up to 1000 Mbps, most new Cabling installations use which category of cabling? Cat 6 | Cat 6 |
Which first-generation Network Topology used a Single Cable that connected all the computers in line? Bus | Bus |
In a partially meshed topology Network, at least two machines have redundant connections? True | True |
Which IEEE Standard sets the standards for Wireless LAN Networks?
| 802.11 |
A _______ cable that uses LEDs is known as Multimode Fiber (MMF)? Fiber-Optic | Fiber-Optic |
Plenum cable provides less protection than Riser-Rated Cable? True | False |
What type of Fiber-Optic cable uses Lasers to send signals? Signle-Mode Fiber (SMF) | Single-Mode Fiber (SMF) |
The two types of Meshed topologies are partially meshed and wholly meshed? True | False |
A type of fire rating know as _______ designates the proper cabling to use for vertical runs between floors and buildings? Riser | Riser |
Which type of cable is used a two-number designator consisting of core and cladding measurements? Fiber-Optic | Fiber-Optic |
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 | Network Topology |
Fiber-Optic cable is attractive for use in High Electromagnetic Interference (EMI) areas? True | True |
Describe how the first-generation Ring Topology connected computers? | Ring Topology Network connected all computers on the Network with a Ring of Cable. |
What are the two basic types of Twisted Pair Cabling manufactured today? | UTP - Unshielded Twisted Pair STP - Shielded Twisted Pair |
What two hybrid topologies achieved any amount of popularity? | Star + Ring Star + Bus |
What do the IEEE 802.11 subcommittee standards define? | Wireless LAN/WLAN Networks |
Explain Hybrid Networking Topology? | Any form of Networking Technology that combines a Physical Topology with a Signalling Topology is called a Hybrid Topology. |
The ______ and MT-RJ Fiber Connectors are always Duplex, meaning both the Send and Receive cables are attached? | LC |
Fiber Optics defines the wavelength of light used, measured in ________? | nanometers (nm) |
In a ________ topology Network, every computer connects to every other computer via two or more routes? | Mesh |
Using a pair of Twisted wires rather than a single wire to send a signal reduces a specific type of interference, called ________? | Crosstalk (And EMI - Electromagnetic Interference) |
The _ standard defines the nomenclature for Fiber? | ANSI/TIA-568.3-D |
Almost all Network technologies that use Fiber-Optic cable require pairs of Fibers? True | True |
Which First-Gen Network Topology provided Fault Tolerance? Ring | Star |
What is the space between the acoustical tile ceiling in an office building and the actual concrete ceiling above called? facia | plenum |
What is the meaning of the term "capacitance"? how much throughput the cable is capable of providing | how long it takes a wire to get a full charge |
The most common type of Cabling used in Networks today consists of Fiber-Optic cables? True | False |
Which cable type suffers from Electromagnetic Interference (EMI)? Coaxial | Unshielded Twisted Pair (UTP) |
In response to the demand for two-pair cabling, manufacturers often connect two fibers together to create _ Fiber-Optic cabling? duplex | duplex |
Which term refers to a relative measure of the resistance (or more precisely, characteristic impedance) on a cable? Radio Guide (RG) Rating | Ohm Rating |
Cat ratings are officially rated in _, indicating the highest frequency the cable can handle? bytes per second | megahertz (MHz) |
The most popular cable for early bus topology Networks used special bayonet-style connectors called _ connectors? parallel | BNC |
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 |
What does it mean if Fiber-Optic cable is designated as 62.5/125 um? | Indicates the size of the Fiber Core (62.5 um) and the size of the Cladding (125 um). |
Describe the difference between Physical and Logical Topology? | Physical = Physical Layout of the Network Media Logical = How the signals travel electronically (Signaling Topology) throughout the Network |
What impact does electro-magnetic interference (EMI) have on a Wired Network? | Huge impact, it can cause the Network to totally shut down. |
Briefly describe how to remember the ST, SC, and LC Fiber-Optic Connectors for the exam? | ST = Snap and Twist SC = Stick and Click, straight push in. LC = Little Connector (They are 2 Connectors built as 1 Little Connector) |
The IEEE 802.3 subcommittee defines standards for ? | Ethernet-based Networks |
Almost all Network Technologies that use Fiber-Optic cable require _ of fibers? | pairs |
What modern topology can be used to connect Wireless Devices? | Mesh |
Name 3 Historical Network Topologies considered to be long dead and name 2 Network Topologies considered to be more Modern? | DEAD = Bus, Ring, Star MODERN = Hybrid, Mesh |
What happens when a cable breaks in a Star Topology Network? | If one cable breaks, all of the other computers can still communicate due to Star Topology having Fault Tolerance. |
Within a Star Network, Fault allows all of the other computers to communicate if one of the cables breaks? | Tolerance |
Any form of Networking Technology that combines a Physical Topology with a Signaling Topology is called _ Topology? | Hybrid |
Each IEEE Subcommittee is officially called a __, except for a few that are listed as Technical Advisory Group (TAG)? | Working Group |
The most common form of cabling uses wires wrapped up in some kind of protective sheathing? | copper |