Network CH 5
1300 nanometers
The 1000Base-LX utilizes light with what wavelength?
MTRJ
Which fiber connector contains two strands of fiber in each ferrule?
NEXT
Which kind of crosstalk occurs between wire pairs near the source of the signal?
Bandwidth
Which transmission characteristic is never fully achieved?
You are asked to perform an analysis on the network that will allow you to deduce information from patterns in communication. Which of the following types of analysis are you asked to perform?
data traffic analysis
To troubleshoot a network problem, you are required to use a packet analyzer on a Unix based system. Which of the following command line interface commands will provide you with the required functionality?
tcpdump
Coaxial cable , F- connector
What kind of cable uses BNC connectors? Which connector is likely to be used by cable TV?
Light experiences virtually no resistance through glass
Which of the following statements about fiber-optic cabling is accurate?
Tone locator
Which part of a toner and probe kit emits an audible tone when it detects electrical activity on a wire pair?
NEXT is crosstalk that occurs between wire pairs near the source of a signal.
Which statement accurately describes what near end crosstalk (NEXT) is?
A mismatched connector will have different impedance ratings, causing data errors.
Why should you terminate coaxial cable with connectors that are rated for the exact cable type?
TIA/EIA 568A
You have been awarded a contract for wiring a new federal building. What twisted-pair wiring standard must you use?
You have been experiencing connectivity with various websites. The response time to open these websites is high. You tested the same websites from your home and could open them much faster. You assume that the slow access to the Websites might be due to high latency. Which of the given utility is likely to help you in finding the source that may be causing the latency issue?
traceroute
Multimeter
What kind of tool can you use to measure voltage on a cable length?
Coarse wavelength division multiplexing (CWDM)
What multiplexing technology lowers cost by spacing frequency bands wider apart to allow for cheaper transceiver equipment?
Fiber type mismatch
What type of fiber cable problem is caused when pairing a 50-micron core cable with a 62.5-micron core cable?
3/8 inch
When terminating an Ethernet cable, about how far should the cable sheath extend into the plug?
False
A short circuit is one where needed connections are missing, such as when a wire breaks
RG-6
Broadband cable Internet service and cable TV are most commonly delivered over long distances via what type of cable?
True
Latency on data networks is based on a calculation of a packet's round trip time (RTT).
If you need to perform port scanning in your network, which of the following tool are you likely to use? [Choose all that apply].
Nmap, Superscan and Angery IP scanner
802.3at
PoE+ devices are defined by what IEEE standard?
False
RG-59 is more expensive than RG-6, but has better resistance to attenuation.
1,2,3,6
A Fast Ethernet connection utilizes what pins on an RJ-45 plug?
The cable must be a rollover cable
A junior administrator is having issues connecting to a router's console port using a TIA/EIA 568B standard cable and a USB serial to RJ-45 adapter, despite verifying terminal settings. What is the issue?
The materials used for shielding and conducting
In coaxial cabling, what does the RG rating measure?
False
In order to achieve 1000Base-T over CAT5e cable, two pairs of copper are needed.
White & green
Suppose you're creating patch cables to be used in a government office. What color wire goes in the first pin?
statistical time division multiplexing ( STDM)
Utilizing time slots that are adjusted according to priority and need is an example of what type of multiplexing on copper lines?
Cat 6a
What is the earliest twisted-pair cabling standard that meets the minimum requirements for 10GBase-T transmissions?
STDM ( statistical time division multiplexing )
What is the earliest twisted-pair cabling standard that meets the minimum requirements for 10GBase-T transmissions?
Cat 5 e
What is the minimum category of UTP cable required to support Gigabit speeds?
Cat 5e, Cat 6a & Cat 7
What kind of cable uses BNC connectors? Which connector is likely to be used by cable TV?
