Data Communications Ch. 05 Review
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?
STDM (statistical time division multiplexing)
Which kind of multiplexing assigns slots to nodes according to priority and need?
Cat 5e, Cat 6a, Cat 7
Which of these categories of twisted-pair cable can support Gigabit Ethernet?
Tone Locator
Which part of a toner and probe kit emits an audible tone when it detects electrical activity on a wire pair?
Bandwidth
Which transmission characteristic is never fully achieved?
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 of an inch
When terminating an Ethernet cable, about how far should the cable sheath extend into the plug?
white/orange, orange, white/green, blue, white/blue, green, white/brown, brown
When viewing the pinout for T568B, what is the correct order of wire colors, starting at pin 1?
TIA/EIA 568A
You have been awarded a contract for wiring a new federal building. What twisted-pair wiring standard must you use?
Local Connector
You've been handed a fiber with a 1.25-mm ferrule that requires a connector. What is the most commonly used connector for this ferrule size?
Simplex
Signals that can travel in only one direction on a medium are referred to as what type of signal?
False
A short circuit is one where needed connections are missing, such as when a wire breaks.
True
Latency on data networks is based on a calculation of a packet's round trip time (RTT).
True
Multimode fiber contains a core that is larger than a single mode fiber core.
White/Green
Suppose you're creating patch cables to be used in a government office. What color wire goes in the first pin?
registered jack 11 (RJ-11)
Telephone connections follow what registered jack standard?
Cat 6a
What is the earliest twisted-pair cabling standard that meets the minimum requirements for 10GBase-T transmissions?
10GBASE-T
What is the fastest Ethernet standard that can possibly be used on twisted-pair cabling?
10 Gbps
What is the maximum supported throughput of a CAT6 cable?
Cat 5e
What is the minimum category of UTP cable required in order to support Gigabit speeds?
Coaxial cable, F-connector
What kind of cable uses BNC connectors? Which connector is likely to be used by cable TV?
Multimeter
What kind of tool can you use to measure voltage on a cable length?
Jitter is what happens when packets experience varying amounts of delay and arrive out of order.
What statement correctly describes "jitter"?
Power over Ethernet requires CAT6 or better copper cable.
What statement regarding the Power Over Ethernet standards is inaccurate?
