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2023-2024 BICSI Others Technician Exam With Answers (182 Solved Questions)

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    BICSI Technician exam 2023/2024 with 100% correct answers Three transmission methods are - correct answer Symplex, half duplex, full duplex The choice of a specific transport medium is influenced by 5 economics and technical considerations such as the: - correct answer Physical construction, type of services, topology and size of the network, transmission path distance, transmission performa nce characteristics of the cabling. Twisted pair cable is called balanced cable because: - correct answer The physical construction of both conductors and the associated connections transmit information electrically at the same potential referenced to g round. Coaxial cable is unbalanced because: - correct answer The two conductors in the associated connections transmit information electrically at different potentials referenced to ground. __________ current has a rapid increase and decrease of the vo ltage that cannot be perceived by the eye. - correct answer Alternating or AC __________ refers to a steady value that does not change the polarity of the voltage for the direction of the current. - correct answer Direct current or DC A battery is an example of a _____ source. - correct answer Direct current or DC EMI - correct answer Electromagnetic interference EM I can be __________ or __________ to the cable - correct answer External or internal AXT - correct answer Alien crosstalk

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    Wha t is alien crosstalk? - correct answer Other cables, external to the cable, that cause electromagnetic interference. Five examples of external EMI - correct answer Other cables, motors, fluorescent lighting, switching power supplies, powered radio equ ipment and antennas Crosstalk definition - correct answer Electromagnetic interference, internal to the cable , that comes from another pair within the sheath Two examples of internal electromagnetic interference - correct answer Cross talk or coming from the cables shield, screen, or other metallic component that is improperly bonded and grounded Net current fields we can directly with __________ - correct answer Distance High - current fields weekend with - correct answer the cube of the distance (fast) Shielding is ineffective for __________ but is effective for __________ - correct answer Net current fields, high - current fields Frequency defined - correct answer The number of cycles a signal is repeated in a given time peri od. 1 cycle in 1 s = ___ Hz - correct answer 1 60 cycles in 1 s = _____ Hz - correct answer 60 1000 cycles in 1 s = _______________ - correct answer 1 kilohertz (kHz) 1 million cycles in 1 s = _____________ - correct answer 1 megahertz (MHz) 1 billion cycles in 1 s = ___________ - correct answer 1 gigahertz (GHz)

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    1 trillion cycles in 1 s = __________ - correct answer 1 terahertz (THz) Humans can hear frequencies that range from _____ hertz to _____ hertz - correct answer 20 Hz to 20,000 Hz Voice - grade transmission of speech is generally limited to between _____ hertz and _____ hertz - correct answer 300 Hz and 3400 Hz Electrical power measured in watts has two variations known as - correct answer Apparent (or reactive) power and true (or real) power When measured in conjunction with a time element such as seconds or hours electrical power applies to — - correct answer The energy consumed by an electrical device (such as a motor, amplifier, or telephone transmitter) over a period of time The energy consumed by an electrical device such as a motor, amplifier, or telephone transmitter over a period of time is typically measured in __________ - correct answer Kilowatt hours (kWh) Power is derived from __ ________ and __________ - correct answer Electrical pressure and electrical current Electrical pressure is usually measured in _____ - correct answer Volts (V) Apparent power is a characteristic of a sea electrical units that have __________ componen ts - correct answer Reactive Electrical current is measured in _____ - correct answer Amperes (A) Inductors such as transformers and capacitors are examples of - correct answer Reactive components True power is measured in __________ - correct an swer Watts

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    Power consumed solely by the connected load and any resistive losses in the associated transmission media is called - correct answer True power Peak power is - correct answer The maximum power available in an AC circuit at the specific mo ment in time when both the voltage and current are at their maximum values The maximum power available in AC circuits at the specific moment in time when both the voltage and current are at their maximum is called - correct answer Peak power Sustained power that is available during approximately 70% of the AC cycle within an AC circuit is called - correct answer Effective power The information transmitted by an ICT system can originate in TWO fundamental forms called ________ and __________ - correc t answer Analog and Digital Continuously varying electrical signals that directly follow or are similar to the changes in loudness and frequency of the input signal is called - correct answer Analog transmission A discontinuous signal that changes from one state to another in a number of distinct steps within fixed timeslots is called - correct answer Digital transmission The basic unit of digital information is called a _____ - correct answer Bit (binary dig it) The contraction of the term binary digit is called a - correct answer Bit Blank is used to indicate the existence of two binary states or conditions (on or off) - correct answer A bit In Legacy electronic systems _____ _____ was controlled to in dicate an on or off state - correct answer Current flow

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    __________ convert the digital signals 1s and 0s into two distinct analog frequencies - correct answer Modems The transmission of analog data from video devices can be converted from analog form at to digital with a __________ - correct answer Codec (coder/decoder) __________ Converts the amplitude changes of various frequencies into a digital format for transmission over digital transmission media - correct answer Codecs The most common pro cess for voice conversion is called - correct answer Pulse code modulation (PCM) Pulse code modulation samples the analog voice signal __________ times per second to create a digital voice channel of __________ bits for II - correct answer 8000 times per second, 64,000 bits for second The POTS signal range is transmitted between _____ and _____ Hz - correct answer 300 and 3400 Hz __________ technology uses available band with above the POTS range on existing PSTN copper loops - correct answer Dig ital subscriber line (DSL) One form of DSL technology that allows faster data transmission over balanced twisted pair cabling is called - correct answer ADSL __________ Quantifies the bandwidth of a cabling system in a frequency range of interest. - c orrect answer Megahertz __________ Refers to the number of bits of information that can be transported over the media. - correct answer Megabit __________ Represents the information - carrying capacity of a system - correct answer Bandwidth __________ Typically is expressed in the range of analog frequencies that can be transported or processed by the system. - correct answer Bandwidth

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