Visual Programming MCQs with Answers
Practice important Visual Programming MCQs with answers and explanations.
Chapter: 1
Q1:
What is the prerequisite for this course?
A. Knowledge of WPF
B. Knowledge of AJAX
C. C++ programming and data structures
D. Event-driven programming
Correct Answer:
C
Chapter: 1
Q2:
Which of the following books is primarily focused on Windows Presentation Foundation (WPF)?
A. Event Processing in Action
B. Event Processing Simplified
C. Windows Presentation Foundation Unleashed
D. Visual Programming Simplified
Correct Answer:
C
Chapter: 1
Q3:
Who is the author of "Windows Presentation Foundation Unleashed"?
A. Opher Etzion
B. Peter Niblett
C. Adam Nathan
D. Steve Jobs
Correct Answer:
C
Chapter: 1
Q4:
What programming language will be introduced for GUI examples in this course?
A. Java
B. Python
C. C#
D. JavaScript
Correct Answer:
C
Chapter: 1
Q5:
What concept is primarily focused on in the course?
A. Multi-threading
B. Event-driven programming
C. Network programming
D. Object-oriented programming
Correct Answer:
B
Chapter: 1
Q6:
What technique will be introduced for event-driven programming in the browser?
A. JSON
B. REST
C. AJAX
D. SOAP
Correct Answer:
C
Chapter: 1
Q7:
What is the key characteristic of the refactored code example?
A. It supports parallel execution
B. It is more focused and does one thing at a time
C. It is event-driven
D. It handles multiple threads simultaneously
Correct Answer:
B
Chapter: 1
Q8:
What is a major issue with the refactored approach?
A. No blocking
B. Parallel execution
C. Blocking and lack of parallelism
D. Multi-threading conflicts
Correct Answer:
C
Chapter: 1
Q9:
What command is used to compile and run the first example in the course?
A. g++ -c example1.cc
B. g++ example1.o
C. g++ -o example1 example1.cc
D. g++ example1
Correct Answer:
C
Chapter: 1
Q10:
In the first example, what happens when the character 'x' is input?
A. The program continues running
B. The program terminates
C. The program throws an error
D. The program ignores it
Correct Answer:
B
Chapter: 1
Q11:
What is the purpose of the function onkeypress() in the refactored code?
A. To read from a file
B. To check if a key is pressed
C. To print a character and return if it is 'x'
D. To process file changes
Correct Answer:
C
Chapter: 1
Q12:
In the refactored code, what is the function onfilechanged() responsible for?
A. Monitoring keyboard input
B. Writing to a file
C. Checking if the file has changed and reacting accordingly
D. Sending network requests
Correct Answer:
C
Chapter: 1
Q13:
In the second example, what does the condition if (f.good() && a != f.peek()) check?
A. If the file is writeable
B. If the file exists and has content different from 'a'
C. If the file is empty
D. If the file is closed
Correct Answer:
B
Chapter: 1
Q14:
What happens when either 'x' is encountered in the file or keyboard input in the second example?
A. The loop continues
B. The loop terminates
C. The file is deleted
D. The program crashes
Correct Answer:
B
Chapter: 1
Q15:
Why were the two basic examples shown in the lecture?
A. They demonstrate advanced concepts
B. They are difficult to write
C. They are simple and introduce event-driven concepts
D. They highlight file I/O operations
Correct Answer:
C
Chapter: 1
Q16:
What key concept will be introduced at the end of the course?
A. Multi-threading
B. Event-driven programming on mobiles
C. Network security
D. Database management
Correct Answer:
B
Chapter: 1
Q17:
What is a common issue left unaddressed in the second code example?
A. Infinite loop
B. Memory leak
C. Busy wait
D. Syntax error
Correct Answer:
C
Chapter: 2
Q18:
What is the purpose of the onkeypress() function in the code example?
A. To check if the keyboard is pressed.
B. To read a character from the keyboard and return whether it is 'x'.
C. To read a character from a file.
D. To process file changes.
Correct Answer:
B
Chapter: 2
Q19:
What does the onfilechanged() function do in the code example?
A. It monitors keyboard input.
B. It checks if the file has changed.
C. It reads a character from a file and returns whether it is 'x'.
D. It writes a character to a file.
Correct Answer:
C
Chapter: 2
Q20:
In the main loop of the code example, what causes the program to exit?
A. When 'x' is read from the keyboard or from the file.
B. When any character is read from the keyboard or the file.
C. When the file is empty.
D. When the keyboard is not pressed.
Correct Answer:
A