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

1 Answer

Answer :

C. Telecommand

Related questions

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 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 : The satellite subsystem that monitors and controls the satellite is the A. propulsion subsystem B. power subsystem C. communications subsystem D. telemetry, tracking, and command subsystem

Last Answer : D. telemetry, tracking, and command subsystem

Description : The key electronic component in a communications satellite is the A. telemetry equipment B. on-board computer C. command and control system D. transponder

Last Answer : D. transponder

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 : Illustrate how telemetry tracking and command system used in satellite communication.

Last Answer : Telemetry, Tracking and Command (TT&C) Subsystem These systems are partly on the satellite and partly at the control earth station. They support the functions of the spacecraft management. Telemetry System ... pulse to the satellite. Then the satellite executes these commands.   OR  

Description : Which of the following is the basic component of a communications satellite receiver? A. On-board computer B. Reflector C. Telemetry D. Transponder

Last Answer : D. Transponder

Description : What test equipment is designed to generate, modify, or measure a range of parameters of electronic functions of a specific nature required to test a single system or equipment?

Last Answer : Special-purpose electronic test equipment.

Description : For a space wave transmission, the radio horizon distance of a receiving antenna with a height of 64 meters is approximately A. 8 km B. 32 km C. 64 km D. 256 km

Last Answer : B. 32 km

Description : For a space wave transmission, the radio horizon distance of a transmitting antenna with a height of 100 meters is approximately: A. 10 km B. 40 km C. 100 km D. 400 km

Last Answer : B. 40 km

Description : Find the load impedance that must be used to terminate RG-62A/U to avoid reflections? A. 93Ω B. 75Ω C. 50Ω D. 300Ω

Last Answer : A. 93Ω

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 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 : 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 : Refers to the first generation of local loop system in telecommunication technology. A. GSM B. DECT C. Analogue cellular D. TACS

Last Answer : C. Analogue cellular

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 : The total propagation delay time from transmission to reception of signals from a ground transmitter to ground receiver with angle of elevation at 10 degrees respectively is A. 273 ms B. 239 ms C. 275 ms D. 260 ms

Last Answer : A. 273 ms

Description : In data communication the transmission of binary signals will require _______. A. Same bandwidth as analog B. More bandwidth than analog C. Less bandwidth than analog D. Bigger cable diameter

Last Answer : B. More bandwidth than analog

Description : Modulation means A. Varying of information B. Utilization of a single transmission channel to carry multiple signals C. Varying of some parameters of a carrier such as its amplitude to transmit information D. Transmit pulses in DC form on a copper wire

Last Answer : C. Varying of some parameters of a carrier such as its amplitude to transmit information

Description : Digital transmission provides a higher level of signal quality than analog transmission because A. repeaters regenerate digital pulses and remove distorstion B. digital signals are easier to sample than ... and cannot easily be distorted D. analog signals are continuous and not easily distorted.

Last Answer : A. repeaters regenerate digital pulses and remove distorstion

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 : Cytokines are endogenous signals that stimulate: A. Local cell proliferation within the wound. B. The central nervous system to initiate fever. C. The production of “acute-phase proteins.” D. Hypoferremia. E. Septic shock.

Last Answer : Answer:ABCD DISCUSSION: Although cytokines exert primarily autocrine and paracrine effects, they may also cause systemic effects

Description : What is the purpose of either 'setpoint module' (6000F090/030) shown in the illustration? EL-0094 A. Program the 'signal conditioner' as to how to vary its input. B. Supply 0 - 10 volts to ... . Obtain an input from the 'signal conditioner' and, if outside set limits, signals the 'annunciator'.

Last Answer : Answer: D

Description : The second derivative input signals modify which of the following? a) The time constant of the system b) Damping of the system c) The time constant and suppress the oscillations d) The gain of the system

Last Answer : Ans: C

Description : Which of the following statement is incorrect? a. The difference between synchronous and asynchronous transmission is the clocking derived from the data in synchronous transmission. b. Half ... in online activities d. Batch processing is the prefered processing mode for telecommunication operation.

Last Answer : Batch processing is the prefered processing mode for telecommunication operation.

Description : The angle of elevation of the antenna beam is 20°. Calculate the transmission-path distance for an ionospheric transmission that utilizes a layer of virtual height 200 km. Use flat-earth approximation. A. 966 km B. 2100 km C. 1100 km D. 405 km

Last Answer : C. 1100 km

Description : Multiplexing scheme use by baseband transmission. A. FDM B. Space multiplexing C. TDM D. Statistical multiplexing

Last Answer : C. TDM

Description : The total space loss of transmission and reception for two ground stations with uplink frequency 8GHz and a downlink of 6 GHz with angle of elevations of 3˚ and 7˚ A respectively is A. 403 dB B. 100 dB C. 20 dB D. 215 dB

Last Answer : A. 403 dB

Description : Man-made noise is usually from _______. A. transmission over power lines and by ground wave B. sky-wave C. space-wave D. troposphere

Last Answer : A. transmission over power lines and by ground wave

Description : What is included in the total resistance of an antenna system? A. Radiation resistance plus space impedance B. Radiation resistance plus transmission resistance C. Transmission line resistance plus radiation resistance D. Radiation resistance plus ohmic resistance

Last Answer : D. Radiation resistance plus ohmic resistance

Description : Which of the following is not a common microwave application? A. Radar B. Data transmission C. Space communications D. Mobile radio

Last Answer : D. Mobile radio

Description : Space diversity transmission means transmitting and receiving on _______. A. Two or more antennas operating on two different frequencies B. Two or more identical frequencies C. Two or more antennas operating on the same frequency D. Two or more different frequency

Last Answer : C. Two or more antennas operating on the same frequency

Description : Space diversity transmission means transmitting and receiving on A. two or more antennas operating on two different frequencies B. two or more identical frequencies C. two or more different frequencies D. two or more antennas operating on the same frequencies

Last Answer : D. two or more antennas operating on the same frequencies

Description : The use of information and communication technology to provide clinical health care from a distance is termed asa. Telemedicine b. Telecommunication c. Video Conferencing d. None of these

Last Answer : a. Telemedicine

Description : The use of information and communication technology to provide clinical health care from a distance is termed asa. Telemedicine b. Telecommunication c. Video Conferencing d. None of these

Last Answer : a. Telemedicine

Description : The use of computers, internet and other communication technologies to provide medical care to patients at distance is known as i) Telecommunication ii) Telemedicine iii) Expert systems iv) None of these

Last Answer : ii) Telemedicine

Description : The control routine necessary to keep the satellite in position is referred to as A. station keeping B. station tracking C. station monitoring D. station maintaining

Last Answer : A. station keeping

Description : An FM receiver whose intermediate frequency is 10.7 MHz, is experiencing image channel interference from a station transmitting on 121.1 MHz. If the local oscillator is tracking above, the receiver is tuned to A. 131.8 MHz B. 110.4 MHz C. 142.5 MHz D. 99.7 MHz

Last Answer : D. 99.7 MHz

Description : Type of antenna which is normally used for satellite tracking service. A. Omni B. Helical C. Yagi D. Dipole

Last Answer : B. Helical

Description : A helical antenna is used for satellite tracking because of ______. A. Broad bandwidth B. Good front-to-back C. Maneuverability D. Circular polarization

Last Answer : D. Circular polarization

Description : If a transmitting antenna is 100 meters high and a separate receiving antenna is 64 meters high, what is the maximum space wave communication distance possible between them? A. 18 km B. 72 km C. 164 km D. 656 km

Last Answer : B. 72 km

Description : What are two common concerns in a cloud environment? (Choose two.) A. Inability to use proxy servers and load balancers. B. Not enough computing capacity during peak usage times. C. Illegal access ... same physical ethernet, they should not be able to read or modify each other's network traffic.

Last Answer : Illegal access to private data stored by applications in the cloud.If two guest instances are running on the same host or on different hosts connected to the same physical ethernet, they should not be able to read or modify each other's network traffic

Description : Stacking antenna elements A. increases sensitivity to weak signals B. will suppress odd harmonics C. decrease signal to noise ratio D. increases selectivity

Last Answer : A. increases sensitivity to weak signals

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 : What type of modulation is used on voice and video signals? A. AM B. FM C. SSB D. QPSK

Last Answer : B. FM

Description : The satellite communications channels in a transponder are defined by the A. LNA B. bandpass filter C. mixer D. input signals

Last Answer : B. bandpass filter

Description : What is a device that detects both vertically and horizontally polarized signals simultaneously? A. Orthomode transducer B. Crystal detector C. Optoisolator D. Isomode detector

Last Answer : A. Orthomode transducer

Description : Collects very weak signals from a broadcast satellite A. Helical antenna B. Satellite dish C. LNA D. TWT

Last Answer : B. Satellite dish

Description : _________ is the random and unpredictable electric signals from natural causes, both internal and external to the system. A. Interference B. Attenuation C. Distortion D. Noise

Last Answer : D. Noise