Cabling and Topology Flashcards
The way that cables and other pieces of hardware connect to one another is called ____.
Network topology
Ways of connecting computers together are called ____.
Topologies
The first generation of wired networks used one of two topologies. They were called ____ and ____.
Bus and ring
What type of topology used a single cable that connects all the computers in a line?
Bus
What topology connects all computer on a network with a ring of cable?
Ring
What topology requires a termination at each end of a cable to prevent a signal sent from one computer from reflecting at the ends of the cable, quickly bringing the network down?
Bus
In what topology does data traffic move in a circle from one computer to the next in the same direction?
Ring
What problem did bud and ring topology networks suffer from?
Entire network stopped working if the cable broke at any point
What topology uses a central connection box for all the computers on the network?
Star
What is it called if one cable breaks and all the computers could still communicate?
Fault tolerance
How the cables physically look is called _____.
Physical topology
How the signal travels electronically is called ____.
Logical topology
Any form of networking technology that combines a physical topology with a signaling topology is called ____.
Hybrid topology
A network where every computer connects to every other computer via two or more routes is called _____.
Mesh topology
A network where at least two machines have redundant connections is called _____.
Partially redundant meshed topology
A network where every computer connects directly to every other computer is called _____.
Fully meshed topology
What is 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 technology
Cabling that uses copper wire wrapped up in some kind of protective sheathing is called __.
Copper cable
What are the two primary types of copper cabling used in the industry?
- Coaxial
2. Twisted pair
What type of cable contains a central conductor wire surrounded by an insulating material that is surrounded by a braided metal shield?
Coaxial cable
Coaxial cable shields data transmissions from ___.
Interference
Interference from one device to another, resulting in poor performance in the devices capabilities is called ___.
Electromagnetic interference (EMI)
What is a connector used for 10Base2 coaxial cable?
BNC connector
What is a screw-on connector used to terminate small-diameter coaxial cable such as RG-6 and RG-59?
F-connector
What type of coaxial cable is primarily for cable television rather than networking?
RG-59
What is the predominant coaxial cable type used today?
RG-6
What do you call a relative measure of the resistance of a coaxial cable?
Ohm rating
What describes a set of characteristics that define how much a cable resists the flow of electricity?
Impedance
What do you call how long it takes the wire to get a full charge?
Capacitance
What are the two types of twisted-pair cabling that are manufactured?
- Shielded
2. Unshielded
What is electrical signal interference between two cables that are in close proximity to each other?
Crosstalk
A cabling for networks composed of pairs of wires twisted around each other at specific intervals is called ___.
Shielded twisted pair (STP)
What are the six types of shielded twisted pair cabling?
- F/UTP
- S/UTP
- SF/UTP
- S/FTP
- F/FTP
- U/FTP
Cabling for networks that consists of twisted pairs of wires surrounded by a plastic jacket are called ____.
Unshielded twisted pair (UTP)
What is a grade assigned to cable to help network installers get the right cable for the right network technology?
Category (Cat) rating
What common Cat rating is the following?
Max frequency: 16 MHz
Max bandwidth: 16 Mbps
Cat 3
What common Cat rating is the following?
Max frequency: 20 MHz
Max bandwidth: 20 Mbps
Cat 4
What common Cat rating is the following?
Max frequency: 100 MHz
Max bandwidth: 100 Mbps
Cat 5
What common Cat rating is the following?
Max frequency: 100 MHz
Max bandwidth: 1 Gbps
Cat 5e
What common Cat rating is the following?
Max frequency: 250 MHz
Max bandwidth: 10 Gbps
Cat 6
What common Cat rating is the following?
Max frequency: 500 MHz
Max bandwidth: 10 Gbps
Cat 6a
What common Cat rating is the following?
Max frequency: 600 MHz
Max bandwidth: 10+ Gbps
Cat 7
What common Cat rating is the following?
Max frequency: 1000 MHz
Max bandwidth: 40-100 Gbps
Cat 7a
What common Cat rating is the following?
Max frequency: 2000 MHz
Max bandwidth: 25-40 Gbps
Cat 8
What Cat ratings are recognized by the Telecommunications Industry Association(TIA)?
- Cat 3
- Cat 5e
- Cat 6
- Cat 6a
The maximum amount of data that goes through a cable per second is called the ____.
Bandwidth
What is a four-pair connector used on the end of network cable, also referred to as an RJ-45 connector?
8 position 8 contact (8P8C)
What type of cabling transmits light rather than electricity, making it attractive for both high-EMI areas and long-distance transmissions?
Fiber-optic cabling
What are the four components that make up fiber-optic cabling?
- Glass fiber(core)
- Cladding
- Buffer
- Insulating jacket
What is the most common fiber-optic cabling size?
62.5/125 micrometers
What is a fiber-optic cable that uses LEDs?
Multimode fiber(MMF)
A light distortion problem unique to multimode fiber-optic cable is called ____.
Modal distortion
Ratings developed by Underwriters Laboratories(UL) and the National Electrical Code(NEC) to define the risk of network cables burning and creating noxious fumes and smoke, are called ___.
Fire ratings
The two most common fire ratings are ___ and ___.
- PVC
2. Plenum
A fire rating for a type of cable that has no significant fire protection is called ___.
Polyvinyl chloride(PVC)
A network cable type that resists burning and does not give off excessive smoke or noxious fumes when burned is called ___.
Plenum-rated cable
What is a fire rating that designated the proper cabling to use for vertical runs between floors of a building?
Riser
The institute that defines industry-wide standards that promote the use and implementation of technology is the ___.
Institute of Electrical and Electronics Engineers(IEEE)
Which of the following topologies requires termination?
A. Star
B. Bus
C. Mesh
D. Ring
B. Bus
Star-bud is an example of a ____ topology.
Hybrid
Of the topologies listed, which one is the most fault-tolerant?
A. Point-to-point
B. Bus
C. Star
D. Ring
C. Star
What term is used to describe the interconnectivity of network components?
Topology
Coaxial cables all have an ___ rating.
Ohm
Which of the following is a type of coaxial cable?
A. RJ-45
B. RG-59
C. BNC
D. Barrel
B. RG-59
Which network topology connected nodes with a ring of cable?
Ring
Which network topology is most commonly seen only in wireless networks?
Mesh
Which of the following is a duplex fiber-optic connection?
A. LC
B. RJ-45
C. ST
D. SC
A. LC
What is the most common category of UTP used in new cabling installations?
Cat 5e
