Description : A multiple access technique used in GSM cellular system A. TACS B. FDMA C. TDMA D. CDMA
Last Answer : C. TDMA
Description : In GSM cellular system, the speech coding rate is ____. A. 13 kbps B. 8 kbps C. 15 kbps D. 20 kbps
Last Answer : A. 13 kbps
Description : The modulation technique used by GSM cellular system A. Phase shift keying B. Frequency shift keying C. Gaussian minimum shift keying D. QAM
Last Answer : C. Gaussian minimum shift keying
Description : What is the transmission rate of a GSM cellular system? A. 64 kbps B. 240 kbps C. 128 kbps D. 270 kbps
Last Answer : D. 270 kbps
Description : The latest government regulation in the telecommunication which provides policy for the provision of local exchange carrier service. A. E.O. 546 B. E.O. 109 C. Act 3948 D. E.O. 59
Last Answer : B. E.O. 109
Description : A government regulation in telecommunication which provide policy to improve the provision of local exchange carrier service. A. E.O. 109 B. Act 3846 C. E.O. 59 D. E.O. 546
Last Answer : A. E.O. 109
Description : Which of the following systems uses frequency band 870-885 MHz as a transmit band of its base station? A. TACS B. NTT C. NMT D. AMPS
Last Answer : B. NTT
Description : The local loop of the telephone system is understood to be A. a single piece of wire connecting the subscriber's telephone set to another telephone set in an adjacent room B. a two-wire or four- ... a facsimile machine to a computer D. a group of wires connecting a telephone set to a modem
Last Answer : B. a two-wire or four-wire communication circuit between the customer’s premise and central office
Description : The wireless evolution is achieved through the GSM family of wireless technology platforms which include but except one of the following. Which one is NOT a member of the GSM family? A. GSM B. EDGE C. GPRS D. CDMA
Last Answer : D. CDMA
Description : What is the channel bandwidth of a standard analogue telephone system? A. 300-500 Hz B. 1200 kHz C. 100-300 Hz D. 300-3400 Hz
Last Answer : D. 300-3400 Hz
Description : One of the following stands for SONET acronym in telecommunication A. System optical network B. Simple operation network C. Synchronous optical network D. System operating network
Last Answer : C. Synchronous optical network
Description : What component in the telephone set has the primary function of interfacing the handset to the local loop? A. Varistor B. Induction coil C. Resistor D. Capacitor
Last Answer : B. Induction coil
Description : ___________ is a device in data transmission to interface data terminal equipment to an analogue transmission line. A. RS 232 B. Connector C. Modem D. RJ-11 plug
Last Answer : C. Modem
Description : In __________ transmission, a unique SYNC character is transmitted at the beginning of each message. A. asynchronous B. synchronous C. digital D. analogue
Last Answer : B. synchronous
Description : Which conference in the ITU-structure does the telecommunication standardization bureau report? A. World telecommunication standardization conference B. ITU-development sector C. Radio regulation board D. The secretary general
Last Answer : A. World telecommunication standardization conference
Description : The use of telecommunication for the transmission of signals to initiate, modify or terminate functions of equipment at a distance. A. Tracking B. space command C. Telecommand D. Trunking
Last Answer : C. Telecommand
Description : The use of telecommunication for the transmission of signals to initiate, modify or terminate functions of equipment at a distance. A. Tracking B. Telemetry C. Telecommand D. Space telemetry
Description : The use of telecommunication for automatic indicating or recording measurement at the distance from the measuring instrument. A. Monitoring B. Tracking C. Telemetry D. Telecommand
Last Answer : C. Telemetry
Description : A form of telecommunication for the transmission of transient images of fixed or moving objects. A. E-mail B. Television C. Radio D. Internet
Last Answer : B. Television
Description : Operating method in which the transmission is made alternately in each direction of a telecommunication channel A. Semi-duplex operation B. Duplex operation C. Half-duplex operation D. Simplex operation
Last Answer : C. Half-duplex operation
Description : Which of the following is the world’s first cellular system to specify digital modulation and network level architecture? a) GSM b) AMPS c) CDMA d) IS-54
Last Answer : a) GSM
Description : What are the major systems of a telecommunication network? Discuss in detail the subscriber loop systems.
Last Answer : The major systems of any telecommunication network may consist of the following major systems: 1. Subscriber end instruments or equipments 2. Subscriber loop systems 3. Switching ... exchange. The subscriber cable pairs emanating from the exchange are also terminated on the MDF.
Description : Which of the following is an enhancement of GSM including the GPRS? A. 1G B. 2.5G C. 2G D. 3G
Last Answer : B. 2.5G
Description : Which of the following is standardized as part of GSM phase 2+ that can offer theoretical data speeds of upto 115 kbit/s? A. EDGE B. GPRS C. WAP D. Bluetooth
Last Answer : B. GPRS
Description : What is known as the final stage in the evolution of the GSM standard? A. WAP B. GPRS C. EDGE D. Bluetooth
Last Answer : C. EDGE
Description : How wide is the spectrum bandwidth of a single GSM carrier? A. 100 kHz B. 200 kHz C. 50 kHz D. 16 kHz
Last Answer : B. 200 kHz
Description : Refers to a continuous tone generated in a local exchange terminal through a combination of two frequencies 350 Hz, and 440 Hz. A. Busy tone B. Call waiting tone C. Dial tone D. Standard tone
Last Answer : B. Call waiting tone
Description : Refers to one of the front end circuit of a VHF TV superheterodyne receiver which is usually a separate circuit coupled to the mixer. A. Antenna feed B. AGC C. RF amplifier D. Local oscillator
Last Answer : D. Local oscillator
Description : Can I easily install in my home this Panasonic Corded 2-Line Phone with DECT 6.0 Cordless Handset and Digital Answering System Or do i need a technician to install it?
Last Answer : It is easy to install on your own.
Description : Which one is not a TDMA standard of second generation networks? a) GSM b) IS-136 c) AMPS d) PDC
Last Answer : c) AMPS
Description : Why are orange Tic-Tacs the only ones that are chewy?
Last Answer : I don’t know why that is but if I buy a pack on orange tic-tacs, I’m lucky if they last the day. I think they have opium in them.
Description : Why are orange Tic Tacs the only ones that are chewy?
Last Answer : I never thought about this until I saw the question. Then I tried to figure it out on the internet because now I also want to know. The last thing I tried was the official site. ferrero.com - ... and ask. They only have a snail mail address on their site. How far behind in technology are they?
Description : What is DECT ?
Last Answer : DECT is digital enhanced cordless telecommunication. This refers to a type of cordless phone.
Description : How much will a vtech dect phone typically cost?
Last Answer : A Vtech dect phone can be obtained at a starting cost of about $38.00. They can be purchased at www.Amazon.com.
Description : Can you make conference calls with the vtech dect phone?
Last Answer : Yes! You should be able to. It should be explained step by step in your phone's instruction booklet (which would have pictures and probably be very helpful). Also, if you contact your service provider they can probably walk you through it step by step as well.
Description : In cellular system, the average lead time to install a new base station is approximately ____ months to a year. A. 4 B. 5 C. 6 D. 10
Last Answer : C. 6
Description : What mathematical plane figure is ideal in cellular system design and engineering it graphically and functionally depicts overlapping radio coverage between and among adjacent cell base stations? A. Hexagon B. Octagon C. Pentagon D. Nonagon
Last Answer : A. Hexagon
Description : In cellular system, _____ defines the geographic distance that is required between cells using identical frequencies in order to avoid interference between the radio transmissions at these cells. A. frequency-reuse ratio B. distance-to-reuse ratio (D/R) C. reuse format plan ratio D. reuse factor
Last Answer : B. distance-to-reuse ratio (D/R)
Description : What is considered as the most advanced satellite system developed for cellular telephones? A. Iridium B. Globalstar C. ANIK D. Molniya
Last Answer : A. Iridium
Description : A digital identification associated with a cellular system A. SAT B. ESN C. MIN D. SIM
Last Answer : D. SIM
Description : A cellular standard known as the cdmaOne. A. IS-95 B. IS-136 C. IS-54 D. IS-100
Last Answer : A. IS-95
Description : Cellular radios use FM with a maximum deviation of A. ±30 khz B. ±75 khz C. ±25 khz D. ±12 khz
Last Answer : D. ±12 khz
Description : One of the following is very useful as a multiband HF receiving antenna. A. Parabolic antenna B. Elementary doublet C. Log-periodic D. Square loop
Last Answer : C. Log-periodic
Description : In order to get maximum radiation to all surrounding points in the horizontal plane, the antenna used is a A. vertical loop B. vertical quarter-wavelength rod C. array which includes parasitic elements D. a horizontal Hertz dipole
Last Answer : B. vertical quarter-wavelength rod
Description : A vertical loop antenna has a A. unidirectional radiation pattern in the horizontal plane B. unidirectional radiation pattern in the vertical plane C. omnidirectional radiation pattern in the horizontal plane D. a bidirectional radiation pattern in the horizontal plane
Last Answer : D. a bidirectional radiation pattern in the horizontal plane
Description : Which of the following antennas receive signals in the horizontal plane equality well from all directions? A. Horizontal Hertz antenna B. Vertical loop antenna C. Vertical Yagi antenna D. A vertical antenna which is a quarter-wavelength long
Last Answer : D. A vertical antenna which is a quarter-wavelength long
Description : An antenna which is one-tenth wavelength long A. Hertzian dipole B. Loop antenna C. Marconi antenna D. Elementary doublet
Last Answer : D. Elementary doublet
Description : What is the diameter of a copper wire to be used in a 16 km loop with a dc loop resistance of 100 ohms/km? A. 0.108 cm B. 1.082 cm C. 0.017 cm D. 0.0465 cm
Last Answer : D. 0.0465 cm
Description : Why open loop OP-AMP configurations are not used in linear applications?
Last Answer : The open loop gain of the op-amp is not a constant and it varies with changing the temperature and variations in power supply.Also the bandwidth of the open loop op-amp is negligibly small.For this reasons open loop OP-AMP configurations are not used in linear applications.