Which of the following is not a disadvantage of oversampling? - Avionics MCQ

Aeronautical & Aerospace Engineering : Avionics - Quiz(MCQ)

Which of the following is not a disadvantage of oversampling?

A)

Less accuracy

B)

High cost

C)

More storage space

D)

High power consumption

Correct Answer : Less accuracy

Explanation : Accuracy of the conversion increases with an increase in sampling rate since discretization is reduced and we get a better digital replica of the original signal. As the frequency is high and the time period between samples are very low huge amounts of data are recorded and hence require high power and storage space eventually leading to high costs.

Recently Updated in Avionics Questions

Which type of architecture uses different storage space for program code and the data?

A)

Split cell architecture

B)

Fragmented architecture

C)

Harvard architecture

D)

Von Neumann architecture

Correct Answer : Option (C) : Harvard architecture

Explanation : In a Harvard architecture microprocessor, there are two memories, a program or instruction memory, usually a ROM, and a data memory, which is a RAM. Also, there are two data paths into and out of the CPU between the memories. Because both instructions and data can be accessed simultaneously, very high-speed operation is possible.

What is the accessibility limitation of only one data or instruction set at a time from the memory called?

A)

Von Neumann limit

B)

Von Neumann bottleneck

C)

Von Neumann speed

D)

Von Neumann limitation

Correct Answer : Option (B) : Von Neumann bottleneck

Explanation : The accessibility limitation of only one data or instruction set at a time from the memory is called as Von Neumann bottleneck. This has the effect of greatly limiting the execution speed.

What is the reason for the need of high speed DSP?

A)

Easily programmable

B)

High sampling frequency

C)

Better processing capabilities

D)

Less power consumption at higher speeds

Correct Answer : Option (B) : High sampling frequency

Explanation : The time taken for input/output and the processing time together must be smaller than the sampling period to ensure the continuous flow of data. Since high sampling frequencies are needed for accurately converting the analog signal to digital, high speed DSP is a must.

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