Fundamentals of Networking Technologies Ch 5
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 cable must be a rollover cable.
When viewing the pinout for T568B, what is the correct order of wire colors, starting at pin 1?
white/orange, orange, white/green, blue, white/blue, green, white/brown, brown
A Fast Ethernet connection utilizes what pins on an RJ-45 plug?
1, 2, 3, 6
What is the fastest Ethernet standard that can possibly be used on twisted-pair cabling?
10GBase-T
PoE+ devices are defined by what IEEE standard?
802.3at
What type of fiber cable problem is caused when pairing a 50-micron core cable with a 62.5-micron core cable?
Fiber type mismatch
A serial cable with an RJ-45 connector is capable of being used through an RJ-45 Ethernet port.
False
In order to achieve 1000Base-T over CAT5e cable, 2 pairs of copper are needed.
False
The ST and SC fiber connectors are the most commonly found connectors due to their smaller sizes.
False
Which kind of multiplexing assigns slots to nodes according to priority and need?
STDM (statistical time division multiplexing)
What is the maximum supported throughput of a CAT6 cable?
10 Gbps
What is the minimum category of UTP cable required in order to support Gigabit speeds?
Cat 5e
Which of these categories of twisted-pair cable can support Gigabit Ethernet?
Cat 5e, Cat 6a, Cat 7
What is the earliest twisted-pair cabling standard that meets the minimum requirements for 10GBase-T transmissions?
Cat 6a
What kind of cable uses BNC connectors? Which connector is likely to be used by cable TV?
Coaxial cable, F-connector
Which fiber connector contains two strands of fiber in each ferrule?
MTRJ
Which kind of crosstalk occurs between wire pairs near the source of the signal?
NEXT
Which statement accurately describes what near end crosstalk (NEXT) is?
NEXT is crosstalk that occurs between wire pairs near the source of a signal.
What statement regarding the Power Over Ethernet standards is inaccurate?
Power over Ethernet requires CAT6 or better copper cable.
Which part of a toner and probe kit emits an audible tone when it detects electrical activity on a wire pair?
Tone locator
A wavelength mismatch occurs when transmissions are optimized for one type of cable but sent over a different type of cable.
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.
True
What kind of tool can you use to measure voltage on a cable length?
multimeter
Telephone connections follow what registered jack standard?
registered jack 11 (RJ-11)
Signals that can travel in only one direction on a medium are referred to as what type of signal?
simplex
