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BICSI IN101 EXAM
ACTUAL EXAM WITH CORRECT
SOLUTIONS.
Professionalism - correct answer- the competence or skill expected of a professional (How you look, sound, and feel)
Actions of a professional - correct answer- Refrain from acts that cause background checks, time management, avoid arguments, park appropriot, do not steal time
Principle of transmission - correct answer- The movement of information in either analog or digital form through copper conductors and fiber strands
AC - correct answer- Alternating current
Analog signal - correct answer- A signal in the form of a wave using continuous variations of physical characteristics (constant voltage)
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Bandwidth - correct answer- A range of frequencies available for signaling expressed in hertz (potential capacity of signals traveling at once)
Bel - correct answer- A ratio for analog signal strength (10 dBs)
Current (I) - correct answer- The flow of electrons in a conductor (Amps)
Decibel (dB) - correct answer- A ratio for analog signal strength
(1/10 BEL)
DC - correct answer- Direct current
Digital signal - correct answer- Signal in the form of sequences of discrete pulses (binary signal)
EMI - correct answer- Electromagnetic interference
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Frequency - correct answer- The number of cycles that a signal completes in a given time
Hertz (Hz) - correct answer- standard for measurement used for measuring frequency in cycles per second. (60 Hz = 60 completed cycles per second)
Power (P) - correct answer- The amount of energy transferred per unit time required to operate a device
Volt (V) - correct answer- A unit of measurement for electromotive force
Copper cabling - correct answer- Most common media for data transmission. Data is transmitted as electrical pulses. (Cat 5, Cat 5e, Cat 6)
Attenuation - correct answer- The loss or weakening of a signal between two point expressed in dBs (a ratio of signal sent and signal received)
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AWG - correct answer- American wire gauge
Balanced twisted pair - correct answer- A type of wiring where a pair of conductors continually twist inside the cable to reduce or eliminate the possibility of EMI from other conductors in the cable (blue and blue white will be twisted together)
Capacitance - correct answer- the ability of a conductor to store electrical energy
coaxial cable - correct answer- Cabling with a central metallic inner conductor and a separated enclosed outer conductor by a dielectric material like a metallic braid
Crosstalk - correct answer- Unwanted transfer of a signals electromagnetic energy (blue interfering with orange)
Impedance (Z) - correct answer- The total opposition that a circuit cable or compound offers to the flow of altering current (measured in ohms)
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