Visual Programming MCQs with Answers
Practice important Visual Programming MCQs with answers and explanations.
Multiple Choice Questions
Q81: What can event producers generate?
- A: Only hardware events
- B: Only software events
- C: Hardware, software, or human interaction events
- D: Only human interaction events
View Answer
C
Q82: Which of the following is an example of an event consumer?
- A: A door that locks or unlocks in response to a command
- B: A computer processor
- C: A file on disk
- D: A variable in memory
View Answer
A
Q83: What does the term "decoupling" refer to in event-driven architecture?
- A: Direct communication between producer and consumer
- B: The separation of event producers and consumers, allowing them to operate independently
- C: The integration of different event types into a single stream
- D: The synchronization of events across multiple systems
View Answer
B
Q84: In the flower delivery application, who would be an example of an event producer?
- A: The customer receiving the flowers
- B: The system assigning a driver
- C: The driver delivering the flowers
- D: The store creating a delivery request
View Answer
D
Q85: In the flower delivery application, who would be an example of an event consumer?
- A: The driver making the delivery
- B: The customer placing the order
- C: The store receiving the order
- D: The system ranking the driver
View Answer
A
Q86: How can events be processed according to the lecture?
- A: Only synchronously
- B: Only asynchronously
- C: Either synchronously or asynchronously
- D: Only in real-time
View Answer
C
Q87: What is the advantage of using an event log?
- A: It prevents data loss during processing
- B: It stores a history of events for future reference
- C: It processes events faster
- D: It reduces the size of the event stream
View Answer
B
Q88: What does the term "event-driven programming" mean?
- A: A programming paradigm where the flow of the program is determined by events
- B: A type of programming that ignores user input
- C: A method of writing software without events
- D: A process of writing code for operating systems
View Answer
A
Q89: What would be a disadvantage of not using event-driven architecture in a system that handles many asynchronous events?
- A: It would be easier to implement
- B: The system could become less responsive and harder to scale
- C: The system would process events faster
- D: It would reduce complexity
View Answer
B
Q90: In the provided code, what would happen if the filechanged variable is never set to 1?
- A: The program would never detect file changes
- B: The program would continuously output the last character read
- C: The program would close the file immediately
- D: The program would stop checking the keyboard input
View Answer
A