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NT1310 MIDTERM REVIEW
review for the midterm
50
Computer Networking
01/24/2013

Additional Computer Networking Flashcards

 


 

Cards

Term
Name the common cable types used today
Definition
UTP, STP, and Fiber Optic
Term
What unit of measurement is a tenfold logarithmic ratio of power output to power input?
Definition
Decibel
Term
Name 3 things that can contribute to attenuation.
Definition
Conductor Resistance, Mutual Capactitance, Impedence.
Term
Name 3 types of crosstalk.
Definition
Near end cross talk, Far end Cross Talk, Equal Level Far end cross talk.
Term
Name an organization which is part of the US goverment and controls communications.
Definition
FCC
Term
What is the National Fire Protection Association responsible for?
Definition
to help protect people, property, and the environment from fire damage.
Term
A telecommunications room can sometimes be referred to as what?
Definition
An enclosed space for housing telecommunications equipment.
Term
Backbone cabling includes what?
Definition
The physical/electrical interconnections between telecommunications rooms and equipment rooms.
Term
What is NOT a network architecture commonly used today?
Definition
Term
Name some characteristic about 10Base-T networking?
Definition
max cable length is 100 meters UTP
Term
According to the NEC, article 800.100, Primary protectors shall be grounded:
Definition
The grounding conductor shall be insulated
Term
What is an advantage of knowing and following the electrical and building codes?
Definition
To not endanger the lives of building occupants
Term
What is generally considered the weakest link in your network setup?
Definition
Patch Cords
Term
What is a benefit of a full equipment cabinet?
Definition
Physical Security, Cooling, and protection against EMI
Term
What are punchdown blocks generally used for?
Definition
To cross connect devices
Term
What type of tool would be best for adding connectors to twisted-=pair cable?
Definition
Crimper
Term
What tool would be helpful to run cable through walls?
Definition
Fish tape
Term
What can cable-toning tools be used to test?
Definition
For determining if a cable installation has been done properly
Term
What is wire-pulling lubricant used for?
Definition
To allow cable to slide more easily over surfaces encountered during the cable pull.
Term
Which additional tools might be handy to carry with you?
Definition
20.) basic screwdrivers, hammer, wrenches, flashlight, drill, saw, pocket knife, tape measure, face mask, stud finder, continuity tester, gloves, step ladder, tool belt, batteries
Term
If the tip wire in your pair is white/blue, what color would you expect the ring to be?
Definition
Blue
Term
How many pairs of wires are in a binder group?
Definition
25
Term
Name 3 benefits of coaxial cabling.
Definition
high bandwidth, low attenuation, easy to install
Term
What is your best practice for obtaining patch cables?
Definition
purchase factory made patch cables
Term
When pulling cable, what can you do to avoid damaging the cable?
Definition
25.) don’t exceed the bend radius, don’t exceed the maximum pulling tension, pull cables evenly, run voice lines to a separate patch panel, don’t twist the cable to tightly, avoid pulling past sources of heat, avoid sharp objects that may snap cables
Term
Electromagnetic interference can be prevented by what?
Definition
don’t install cables in same panels as electric cables, right angles, run through separate holes, proper separation from electrical devices
Term
What is the main difference between fiber-optic and copper media?
Definition
FO is immune to EMI, higher data rates, longer distances, more secure
Term
What is the main disadvantage of fiber-optic and copper media?
Definition
cost, installation is difficult, fragile
Term
name the components of fiber-optic cables
Definition
strand, buffer, strength members, shielding, outer jacket, coating, cladding, core
Term
What is added to fiber-optic cabling to provide additional support?
Definition
Kevlar
Term
What is a fiber rating used for in a fiber-optic cable?
Definition
core/cladding, number of fibers, LAN/WAN application
Term
What should be considered when installing fiber?
Definition
equipment rating, location of cable (inside/outside), termination of fiber
Term
What is the most common wall plate mounting in commercial applications?
Definition
outlet box
Term
When choosing a fixed-design wall plate, what factors should you consider?
Definition
34.) whether it is the right type of connector or if there might be a need to change the connector at any time
Term
What is an advantage of biscuit jacks?
Definition
for those who can’t put a hole in the wall where they want a phone line
Term
If you use the wrong type of cable/connector combination, what could happen?
Definition
intermittent signal errors
Term
What type of tool do you need to attach a BNC connector?
Definition
screw on or with a BNC crimper
Term
What do you think would be needed in a standard network installation?
Definition
cables, tools, switches, routers, testers, time, racks, help
Term
What layer of the OSI reference model do routers work on?
Definition
network layer
Term
What devices work with infrared transmissions?
Definition
remote controls, IrDA ports, Infrared laser devices
Term
What is NOT an advantage of infrared?
Definition
Line of sight is needed, weather attenuation
Term
What is an advantage of RF (radio Frequency)?
Definition
no line of sight needed, low cost, flexible
Term
What is an advantage of microwave communication communication?
Definition
high bandwidth, long distances, point-to-point or broadcast
Term
What is an element of a successfull cabling installation?
Definition
proper design, quality materials, good workmanship
Term
Which of these are not elements of proper design?
Definition
inflexible design, low life expectancy, difficult administration, high costs
Term
Which of these are carried via toadyas cabling systems?
Definition
data, voice, video/television, fire detection and security
Term
What considerations need to be made when building a telecommunications room?
Definition
LAN wiring, Telecommunications wiring, power requirements, HVAC considerations
Term
What would be a common cabling installation procedure?
Definition
design cabling system, schedule installation, Install cables, terminate cables, test installation
Term
What would be an example of a makeshift tool?
Definition
tennis ball, bailing wire
Term
What should be included in cabling system documentation?
Definition
documentation of new cabling system, components that make up the system, how it is put together, where to find individual wires, pictures