Chaper 2 - Cabling and Topology Flashcards
The_________is a network topology that relies on a main line of network coaxial cabling.
bus topology
The________of a cable will determine its speed.
category ratings
A/An_________provides more fault tolerance than any other basic network topology.
mesh topology
When your network has all computers connected to a centrally located wiring closet, you have a physical_______ network.
star topology
_________networks use more than one type of basic network topology.
Hybrid topology
CAT 5e cable is a type of ____ wiring.
unshielded twisted pair
Coaxial cable uses a braided metal shield to protect data from_________.
electromagnetic interference
Network cabling can use either light or electricity to transmit data. The faster of these types uses light along________
fiber-optic cable
______ -grade UTP must be installed in ceilings, whereas _______ -grade UTP is often used to connect one floor to another vertically in a building.
plenum / riser
The twisting of the cables in UTP and STP reduces________.
crosstalk
Which of the following are classic network topologies? (Select three.)
A. Bus
B. Star
C. Ring
D. Dual-ring
Bus, star, ring
John was carrying on at the water cooler the other day, trying to show off his knowledge of networking. He claimed that the company had installed special cabling to handle the problems of crosstalk on the network. What kind of cabling did the company install?
A. Coaxial
B. Shielded coaxial
C. Unshielded twisted pair
D. Fiber-optic
Unshielded twisted pair
Jill needs to run some UTP cable from one office to another. She found a box of cable in the closet and wants to make sure it’s Cat 5 or better. How can she tell the Cat level of the cable? (Select two.)
A. Check the box.
B. Scan for markings on the cable.
C. Check the color of the cable—gray means Cat 5, yellow means Cat 6e, and so on.
D. Check the ends of the cable.
Check the box / Scan for markings on the cable
What topology provides the most fault tolerance?
A. Bus
B. Ring
C. Star-bus
D. Mesh
Mesh
What organization is responsible for establishing and promoting networking standards?
A. Institute of Electrical and Electronics Engineers (IEEE)
B. International Networking Standards Organization (INSO)
C. Federal Communications Commission (FCC)
D. International Telecommunications Association (ITA)
Institute of Electrical and Electronics Engineers (IEEE)
What aspects of network cabling do the IEEE committees establish? (Select three.)
A. Frame size
B. Speed
C. Color of sheathing
D. Cable types
Frame size / Speed / Cable types
What types of coax cabling have been used in computer networking? (Select two.)
A. RG-6
B. RG-11
C. RG-45
D. RG-59
RG-6 & RG-59
What applications are best suited for fiber-optic cabling? (Select two.)
A. Short distances
B. Wireless networks
C. High-EMI areas
D. Long distances
High-EMI areas/ Long distances
What are the main components of fiber-optic cabling? (Select three.)
A. Cladding
B. Insulating jacket
C. Copper core
D. Fiber
Cladding / Insulating jacket / Fiber
What is the most popular size of fiber-optic cabling?
A. 62.5/125 µm
B. 125/62.5 µm
C. 50/125 µm
D. 125/50 µm
62.5/125 µm
Most fiber-optic installations use LEDs to send light signals and are known as what?
A. Single-mode
B. Multimode
C. Complex mode
D. Duplex mode
Multimode
Why was the main cable in a bus topology terminated at both ends?
A. To allow the signal to be amplified so it could reach both ends of the network
B. To prevent the signal from dropping off the network before reaching all computers
C. To prevent the signal from bouncing back and forth
D. To convert the signal to the proper format for a bus network
To prevent the signal from bouncing back and forth.
Where are you most likely to encounter a mesh network?
A. On any network using fiber-optic cable
B. On any network using plenum cable
C. On wireless networks
D. On wired networks
On wireless networks.
You are asked by your boss to research upgrading all the network cable in your office building. The building manager requires the safest possible cabling type in case of fire, and your boss wants to future-proof the network so cabling doesn’t need to be replaced when network technologies faster than 1 Gbps come on the market. You decide to use Cat 5e plenum cabling throughout the building. Which objective have you satisfied?
A. Neither the building manager’s nor your boss’s requirements have been met.
B. Only the building manager’s requirement has been met.
C. Only your boss’s requirement has been met.
D. Both the building manager’s and your boss’s requirements have been met.
Only the building manager’s requirement has been met.
Which committee is responsible for wireless networking standards?
A. IEEE 802.2
B. IEEE 802.3
C. IEEE 802.5
D. IEEE 802.11
IEEE 802.11
