CH5 - Course Quiz Flashcards
Female RJ-45 Jacks used in work area wall outlets typically have Cat Ratings?
True
False
True
What type of connector is used by all UTP Ethernet NICs?
RJ-45
ST
RJ-11
SC
RJ-45
Which device provides the benefit of acting like an inverter?
tone probe
uninterruptible power supply (UPS)
optical time-domain reflectometer (OTDR)
tone generator
uninterruptible power supply (UPS)
On many NICs, a propertly functioning Link Light is on and Steady when the NIC is connected to another device. What does ON with no flickering indicate?
Low Power
Good Connection
No Service
Collision
Good Connection
A rack-mounted device designed for a 3.5 inch space is a 2U?
True
False
True
Which item is part of a wall outlet?
Male Jack
Lock
Female Jack
Rack
Female Jack
When testing for continuity using a multimeter, set it to the lowest Ohm range; if you have a connection you will see a _______ reading?
100 Ohms
infinate Ohms
0 Ohms
1 Ohms
0 Ohms
What does the Acronym LED stand for?
Later Ethernet Development
Low Ethernet Distance
Light-Emitting Diode
Light Exchange Diagnostics
Light-Emitting Diode
A standby power supply is always on and powers the system while the battery charges?
True
False
False
The _______ specificication accounts for UTP cable lengths?
TIA/EIA 606
TIA/EIA 568
ISO 802.3
IEEE 1284
TIA/EIA 568
Most Switches enable you to use multiple NICs for a single machine, a process called ______ or link aggregation?
dispersion
bonding
loopback
attenuation
bonding
Patch panels serve as your first line of defence in organizing cables?
True
False
True
What is the max length for UTP cables allowed by the TIA/EIA 568 cabling specification?
200 m
100 m
1000 m
90 m
90 m
Which item describes the cabling that goes more or less horizontally from a work area to the telecommunications room?
horizontal cable run
structured cable run
vertical run
demarcation run
horizontal cable run
What item do most professional cable installers use to quote the price for an installation?
bandwidth
total length of cable
per-drop cost
kind of environment
per-drop cost
You connect a PC to a wall outlet with a _________?
patch cable.
Better continuity testers can run a ________ test?
wire map
The NIC’s ________ connector is a common failure point, so NICs that come with diagnostic software often include a special test called a loopback test?
female
________ is the organization that defines structured cabling standards?
TIA (Telecommunications Industry Association)
________ are small devices with 2 female ports that enable you to connect 2 pieces of cable together to overcome distance limitations?
Couplers
Briefly explain the consequences of having a dirty connector?
It can cause serious signal loss with Fiber.
It is important not to smudge the glass.
Why does the TIA/EIA 568 specification call for a different max cable length than specified by the IEEE Standard?
IEEE specifies 100m between a hub or a switch and a node.
TIA/EIA 568 specifications allow only UTP cable lengths of 90 meters due to patch cables.
Patch Cables add extra distance between the Switch and the PC, so TIA/EIA compensates by reducing the horizonal cable length.
Describe the purpose of a Network Interface Unit (NIU), and give an example of a device considered to be an NIU?
In a Private Home, the Equipment (Cable Modem, Optical Network Terminal, etc..) supplied by your ISP is a Network Interface Unit.
It serves as a demarc between your home network and your ISP.
Briefly explain how to diagnose a broken fiber cable for signal loss?
You need to test both the connector and the cable going into the connector.
Either or Both can cause signal loss.
Describe 2 strategies for organizing cables in a patch panel, relative to the actual network?
Organize your patch panel so it mirrors the layout of your Network.
Physical Layout - Where different parts of the patch panel correspond to different parts of your office space.
Logical Layout - Where different user groups or company organizations have their own sections of the patch panel.
Within a Windows OS, which tool can you use to verify that Windows recognizes a NIC and is ready to use it?
Device Manager
My Network Places
ipconfig
Control Panel
Device Manager
Both near-end Crosstalk (NEXT) and far-end Crosstalk (FEXT) are measured in _________?
amps
hertz
Ohms
decibels
decibels
If you suspect that a fiber-optic run has a break, which type of device would you use to determine if there is a break, and to identify the location of the break?
single-device toner
time-domain reflectometer
multimeter
optical time-domain reflectometer (OTDR)
optical time-domain reflectometer (OTDR)
If a user gets a “No server is found” error, it usually points to a Logical problem?
True
False
False
Which statement applies to a PCIe NIC?
It is more convenient for troubleshooting than NICs with USB connectors.
It is slower than PCI.
It usually comes in either one-lane (x1) or two-lane (x2) varieties.
It is older than the PCI slot.
It usually comes in either one-lane (x1) or two-lane (x2) varieties.
Attenuation is the weakening of a signal as it travels long distances?
True
False
True
If you provide support for, but do not install UTP Networks, which two tools are most important to use?
voltage event recorder and a good, medium-priced toner
voltage event recorder and a multimeter
good toner and a good, medium-priced cable tester
good, medium-priced cable tester and a voltage event recorder
good toner and a good, medium-priced cable tester
Most PCs today have two types of expansion slots: PCI and ________?
MCA
LED
PCIe
ISA
PCIe
Every OS has some way to tell you on the screen if it detects the NIC is disconnected?
True
False
True
Which statement is TRUE regarding standard equipment racks?
All equipment racks are floor-to-ceiling and should be bolted into the wall.
All equipment racks are 29 inches wide.
They provide safe, stable platforms for all the different hardware components.
Equipment racks come in one standard height, measuring 10 feet floor-to-celing.
They provide safe, stable platforms for all the different hardware components.
The Modern OS will NOT have a driver included for the NIC?
True
False
False
If you want to be a purist when labeling the connections on Patch Panels, there is an official, and rather confusing, ANSI/TIA Labeling Methodology called ANSI/TIA 606-C?
True
False
True
A common problem in UTP installations where the signal from any of the pairs in a cable interferes with another pair in the same cable is known as _________?
split pair
Patch cables use ________ core rather than solid core cable, so they can tolerate much more handling?
standard
The __________ may be the simplest part of the structured cabling system, but it is also the source of the most Network failures?
work area
All Cables run horizontally (for the most part) from the ________ to the PCs?
Telecommunications Room
If you suspect a break in a fiber-optic cable, use ________ to determine if there is a break, and to pinpoint the location of the break?
optical time-domain reflectometer
Why is it a good idea to add some Extra Drops when you install the Cable initially?
To allow for future growth of the Network.
Easier and cheaper to install extra drops at the time you do the initial major cable installation.
Describe the arsenal of interesting tools professional cable pullers have to help them move the cable horizontally?
Telescoping Poles
Coiled flat steel wire (called Fish Tape) for snaking through conduit
special nylon pull ropes
and even nifty little crossbows and pistols that can fire a pull rope long distances.
Which is the function of a punchdown tool?
To connect to a 110 Block, the back of a jack and/or Patch Panel.
What should you do if your UPS comes on too often?
It might be time to install a Voltage Event Recorder.
Voltage Event Recorder plugs into your Power Outlet and tracks the voltage over time.
Describe what happens during a loopback test?
The test sends data out of the NIC and checks to see if it comes back (Loops Back).
Patch Panels allow you to connect only one kind of cabling; that is, they support only UTP, STP, or Fiber, but not a mixture of different types?
True
False
False
When crimping an RJ-45 onto a UTP Cable, you must slide each boot onto the Patch Cable AFTER you crimp both ends?
True
False
False
The process of installing a structured cabling system is rather involved and requires a great degree of skill?
True
False
True
Which characteristic applies to stranded core cabling?
Stranded core wire is actually a bundle of tiny wire strands.
Stranded core is stiff and will break easily.
Stranded core is made of one fiber optic wire.
Stranded core is a better conductor than solid core.
Stranded core wire is actually a bundle of tiny wire strands.
What network component is built into most motherboards today?
patch panel
onboard NIC
switch
router
onboard NIC
You support a large, complicated Network. After experiencing problems and testing the cabling, you discover a bad horizontal cable. What should you do next?
Find the break and repair it.
Leave the cable, and string another cable.
Call your local installer.
Replace the cable yourself.
Call your local installer.
A Link _________ displays connectivity?
Light
All ___________ boxes can provide Security from Power Spikes and Sags?
UPS (Uninterruptible Power Supplies)
A single piece of installed horizontal cabling is called a __________?
run (horizontal run)
A __________ is simply a box with a row of female ports in the front and permanent connectors in the back, to which you connect the horizontal cables?
Patch Panel
From a cabling standpoint, describe a “Work Area”?
A Work Area is nothing more than a Wall Outlet that serves as the termination point for horizontal Network cables: a convenient insertion point for a PC and a Telephone.
What does it mean if the Link Light on a NIC is NOT lit?
Something is Wrong - No Signal/Connection.
NIC could be bad, Cables could be bad, bad/corrupted Driver.
Why do Network Techs often use a USB NIC when troubleshooting the Network?
If a tech walks up to a machine that might have a bad NIC, the technician can test his or her suspicions by inserting a USB NIC and moving the network cable from the potentially bad NIC to the USB one.
