Description : The data rate is sometimes calledthe ___ rate. A) baud B) bit C) signal D) none of the above
Last Answer : bit
Description : The signal rate is sometimes called the ____ rate. A) baud B) bit C) signal D) none of the above
Last Answer : baud
Description : The ________ rate defines thenumber of dataelements sent in1s; the______ rate is the numberof signalelements sent in 1s. A) data; signal B) signal; data C) baud; bit D) none of the above
Last Answer : data; signal
Description : In Ethernet when Manchester encoding is used, the bit rate is: a. Half the baud rate. b. Twice the baud rate. c. Same as the baud rate. d. None of the above
Last Answer : a. Half the baud rate.
Description : The baud rate of a signal is 600 baud/second. If each signal unit carries 6 bits, then the bit rate of a signal is ................. (A) 3600 (B) 100 (C) 6/600 (D) None of the above
Last Answer : (A) 3600
Description : An analog signal carries 4 bits in each signal unit. If 1000 signal units are sent per second, then baud rate and bit rate of the signal are ............... and .............. (A) 4000 bauds \ sec & ... (B) 2000 bauds \ sec & 1000 bps (C) 1000 bauds \ sec & 500 bps (D) 1000 bauds \ sec & 4000 bps
Last Answer : (D) 1000 bauds \ sec & 4000 bps Explanation: Bit rate is the number of bits per second. Baud rate is the number of signal units per second. Baud rate is less than or equal to the bit rate. Baud rate = 1000 bauds per second (baud/s) Bit rate = 1000 x 4 = 4000 bps
Description : An analog signal has a bit rate of 6000 bps and a baud rate of 2000 baud. How many data elements are carried by each signal element ? (A) 0.336 bits/baud (B) 3 bits/baud (C) 120,00,000 bits/baud (D) None of the above
Last Answer : (B) 3 bits/baud
Description : Define (i)Bit rate (ii)Baud rate
Last Answer : (i)Bit rate :- Bit rate is simply the number of bits transmitted during one second and is expressed in bits per second (bps). Mathematically bit rate is given by:- Rb =1 / Tb where Tb is time ... 1 / Ts Where, baud rate = symbol rate (symbols per second) and Ts = time interval of one symbol.
Description : How many 8-bit characters can be transmitted per second over a 9600 baud serial communication link using asynchronous mode of transmission with one start bit, eight data bits, two stop bits, and one parity bit ? a. 600 b. 800 c. 876 d. 1200
Last Answer : b. 800
Description : Highest theoretical frequency that can be processed at a sampling rate without aliasing. A. Folding frequency B. Resonant frequency C. Natural frequency D. Critical frequency
Last Answer : A. Folding frequency
Description : When propagationspeed is multiplied by propagation time, we get the ________. A) throughput B) wavelength of thesignal C) distortionfactor D) distancea signal or bit has traveled
Last Answer : distancea signal or bit has traveled
Description : In Manchester anddifferential Manchester encoding, the transition at the middle of the bit is usedfor __________. A) bit transfer B) baud transfer C) synchronization D) none of the above
Last Answer : synchronization
Description : A pure ALOHA Network transmits 200 bit frames using a shared channel with 200 Kbps bandwidth. If the system (all stations put together) produces 500 frames per second, then the throughput of the system is ______. a. 0.384 b. 0.184 c. 0.286 d. 0.58
Last Answer : b. 0.184
Description : A pure ALOHA Network transmit 200 bit frames using a shared channel with 200 Kbps bandwidth. If the system (all stations put together) produces 500 frames per second, then the throughput of the system is .............. (A) 0.384 (B) 0.184 (C) 0.286 (D) 0.586
Last Answer : (B) 0.184
Description : Data by itself is not useful unless (a) it is massive (b) it is processed to obtain information -Technology
Last Answer : (b) Data is unprocessed and raw facts. It is not useful unless it is processed to obtain information
Description : Processed data is called ……………….. A) Raw data B) Information C) Useful data D) Source
Last Answer : B) Information
Description : How many bytes of data can be sent in 15 seconds over a serial link with baud rate of 9600 in asynchronous mode with odd parity and two stop bits in the frame? a. 10,000 bytes b. 12,000 bytes c. 15,000 bytes d. 27,000 bytes
Last Answer : b. 12,000 bytes
Description : In serial communication modes, mode 1 the Baud rate = a) BR=2SMOD/32 * (Timer 0 over flow rate) b) BR=2SMOD/16 * (Timer 1 over flow rate) c) BR=2SMOD/16 * (Timer 0 over flow rate) d) BR=2SMOD/32 * (Timer 1 over flow rate)
Last Answer : b) BR=2SMOD/16 * (Timer 1 over flow rate)
Description : Which of the following is false? An offer to be Valid must (a) Contain a term the non- compliance of which would amount to acceptance. (b) Intend to create legal relations. (c) Have certain and unambiguous terms. (d) Be communicated to the person to whom it is made.
Last Answer : (a) Contain a term the non- compliance of which would amount to acceptance.
Description : In t-carrier system, t3 has a bit rate of A. 560.160 Mbps B. 44.376 Mbps C. 44.736 Mbps D. 560.106 Mbps
Last Answer : C. 44.736 Mbps
Description : A coherent binary phase shift keyed BPSK transmitter operates at a bit rate of 20 Mbps with a carrier to noise ratio C/N of 8.8dB. Find Eb/No. A. 73 dB B. 62.4 dB C. 81.8 dB D. 8.8 dB
Last Answer : D. 8.8 dB
Description : 12 voice channels are sampled at 8000 sampling rate and encoded into 8 bit PCM word. Determine the rate of the data stream. a. 354 kbps b. 750 kbps c. 768 kbps d. 640 kbps
Last Answer : c. 768 kbps
Description : Which performance parameter is the minimum amount of optical power required to achieve a specific bit-error rate (BER) in digital systems or a given signal-to-noise ratio (SNR) in analog systems?
Last Answer : Receiver sensitivity.
Description : What is the baud rate in Arduino?
Last Answer : The baud rate in Arduino is the speed at which data is transmitted over a serial port, measured in bits per second (bps).
Description : What is the baud rate of the standard 10 Mbps Ethernet ? (A) 10 megabaud (B) 20 megabaud (C) 30 megabaud (D) 40 megabaud
Last Answer : (B) 20 megabaud
Description : A sender uses the Stop-and-Wait ARQ protocol for reliable transmission of frames. Frames are of size 1000 bytes and the transmission rate at the sender is 80 Kbps (1Kbps = 1000 bits/second). Size of ... is lost, the sender throughput is __________ bytes/second. a. 2500 b. 2000 c. 1500 d. 500
Last Answer : a. 2500
Description : Power is a _____________ amount of energy used in specific period of time A. large B. definite C. electrical D. relative
Last Answer : B. definite
Description : Serial access memories are useful in applications where A) Data consists of numbers B) Short access time is required C) Each stored word is processed differently D) Data naturally needs to flow in and out in serial form
Last Answer : Answer : D
Description : Serial access memories are useful in applications where a. Data consists of numbers b. Short access time is required c. Each stored word is processed differently d. Data naturally needs to flow in and out in a serial form
Last Answer : d. Data naturally needs to flow in and out in a serial form
Description : Serial access memories are useful in applications where (A) Data consists of numbers (B) Short access time is required. (C) Each stored word is processed differently. (D) None of these
Last Answer : (D) None of these Explanation: data naturally needs to flow in and out in serial form.
Description : What is meant by the term radiation resistance for an antenna? A. The resistance in the trap coils to received signal B. An equivalent resistance that would dissipate the same amount of power as ... antenna C. The specific impedance of the antenna D. Losses in the antenna elements and feed line
Last Answer : B. An equivalent resistance that would dissipate the same amount of power as that radiated from an antenna
Description : Why is it importance of explaining to others the level of confidence that can be placed on the information being communicated?
Last Answer : i dont know i wanto know the anwser to this
Description : A communication management plan identifies the relevant information that should be communicated to: a. the project team. b. the project stakeholders. c. the project board. d. the project sponsor.
Last Answer : b. the project stakeholders.
Description : As used in auditing, which of the following statements best describes "assertions ? a. Assertions are the auditor's findings to be communicated in his audit report. b. Assertions are ... Assertions are the representations of management as to the fairness of presentation of the financial statements
Last Answer : Assertions are the representations of management as to the fairness of presentation of the financial statements
Description : The information tobe communicated ina data communications system is the_______. A) Medium B) Protocol C) Message D) Transmission
Last Answer : Message
Description : What noise is a transient short-duration disturbance distributed essentially uniformly over the useful passband of a transmission system? A. Flicker noise B. Transit-time noise C. Shot noise D. Impulse noise
Last Answer : D. Impulse noise
Description : Power is always __________. A. a definite amount of energy B. all of these C. the rate at which energy is used D. expressed in watts
Last Answer : B. all of these
Description : The following statement(s) is/are true concerning initial microbiologic diagnostic techniques. a. Appropriate expeditious transport of specimens to the microbiology laboratory is essential for obtaining accurate ... a 4-to 8-fold increase over the MIC to be considered clinically efficacious.
Last Answer : Answer: a, c, d Because most surgical infections are polymicrobial, specimens should be cultured for aerobic and anaerobic bacteria, as well as fungi. Although aerobic and aerotolerant ... fold increase over MIC during the peak serum level have been demonstrated to be clinically efficacious
Description : Sources of impulse noise induced in communication channels. A. Erroneous digital coding bit caused by an error on a transmission facility B. Transients due to relay operation C. Crosstalk from dc signaling systems D. All of these
Last Answer : D. All of these
Description : What synchronization is provided so that the start and end of message is identified? A. Carrier B. Character C. Bit D. Clock
Last Answer : B. Character
Description : What is the quantization signal-to-noise ratio if an 8-bit PCM code is used? A. 40 dB B. 50 dB C. 60 dB D. 65 dB
Last Answer : B. 50 dB
Description : What do you call a short bit sequence sent typically 128 bits in digital signatures? A. Hash B. Public key C. Private key D. Password
Last Answer : A. Hash
Description : What satellite system parameter represents the quality of a satellite or an earth station receiver? A. Gain-to-Equivalent Noise Temperature Ratio (G/Te) B. Energy of Bit-to-Noise Density Ratio (Eb/No) C. Carrier-to-Noise Density Ratio (C/No) D. Bit energy
Last Answer : A. Gain-to-Equivalent Noise Temperature Ratio (G/Te)
Description : What term is used to describe a spread spectrum communications system in which a very fast binary bit stream is used to shift the phase of an RF carrier? A. Frequency hopping B. Direct sequence C. Binary phase-shift keying D. Phase compandored spread spectrum
Last Answer : B. Direct sequence
Description : Determine the dynamic range for a 10 bit sign magnitude code. A. 1023 B. 425 C. 511 D. 756
Last Answer : C. 511
Description : Codes must be A. agreed upon in advance between sender and receiver B. eight bit per character C. the same in all modern computer D. either seven or eighth bits per character
Last Answer : A. agreed upon in advance between sender and receiver
Description : The standard ASCII A. is version II of ASC B. is used only in US and Canada C. has 132 characters including 32 control characters D. is subset of 8-bit EBCDIC code
Last Answer : C. has 132 characters including 32 control characters
Description : A seven-bit character can represent one of _________ possibilities. A. 14 B. 64 C. 128 D. 7
Last Answer : C. 128
Description : Asynchronous protocol is A. message oriented B. clock oriented C. bit oriented D. character oriented
Last Answer : D. character oriented