# Modelling in Embedded System MCQ Quiz – Objective Question with Answer for Modelling in Embedded System MCQ

21. Who proposed the CSA theory?

A. Russell
B. Jacome
C. Hayes
D. Ritchie

The CSA theory is proposed by Hayes and this theory is based on the systematic way of building up value sets.

22. Which of the following is a systematic way of building up value sets?

A. CSA theory
B. Bayes theorem
C. Russell’s power mode;
D. first power model

The CSA theory is proposed by Hayes. The theory is based on the systematic way of building up value sets, that is the electronics design system uses a variety of value sets, like 2, 3 etc. The goal of developing discrete value sets is to avoid the problems of solving network equations.

23. Which of the following is an abstraction of the signal impedance?

A. level
B. strength
C. size
D. nature

The systems contain electrical signals of different strengths and it needs to compute the strength and the logic level resulting from a connection of two or more sources of electrical signals. The strength is the abstraction of the signal impedance.

24. Which of the following is an abstraction of the signal voltage?

A. level
B. strength
C. nature
D. size

Most of the systems contain electrical signals of different strengths and levels. The level of the signal is the abstraction of the signal voltage and the strength is the abstraction of the signal impedance.

25. How many kinds of wait statements are available in the VHDL design?

A. 3
B. 4
C. 5
D. 6

There are four kinds of wait statements. These are waiting on, wait for, wait until and wait.

26. Which wait statement does follow a condition?

A. wait for
B. wait until
C. wait
D. wait on

The wait until follows a condition. The condition may be an arithmetic or logical one and the wait for statement follows time duration, it might be in microseconds or nanoseconds or any other time unit. Similarly, the wait on statement follows a signal list and the wait statement suspends indefinitely.

27. Which wait statement does follow duration?

A. wait for
B. wait
C. wait until
D. wait on

The wait for statement follows time duration, it might be in microseconds or nanoseconds or any other time unit.

29. Which of the following is a C++ class library?

A. C++
B. C
C. JAVA
D. SystemC