multiple-choice questions about the switch statement in JavaScript:

Question: Which of the following is NOT a valid way to declare a switch statement in JavaScript?

  • A. switch(expression)
  • B. switch expression
  • C. switch {expression}
  • D. switch: expression

Answer: C. switch {expression}

Question: What happens if a break statement is missing from a case in a switch statement?

  • A. The program crashes
  • B. The execution continues to the next case
  • C. The switch statement ends immediately
  • D. An error is thrown

Answer: B. The execution continues to the next case.

Question: What does the default case in a switch statement represent?

  • A. The first case
  • B. The last case
  • C. A fallback for when no other cases match
  • D. The only case that can be executed

Answer: C. A fallback for when no other cases

Question: What type of comparison does the switch statement use to match case values?

A. Loose comparison (==)
B. Strict comparison (===)
C. Logical OR (||)
D. Bitwise AND (&)

Answer: B. Strict comparison (===)

Question: What is the result of the following switch statement if val equals ?

a.”alpha”
B. “beta”
C. “gamma”
D. “delta”

Answer: C. “gamma”

Question: Which of the following is true about the switch statement in JavaScript?

A. It can only be used within functions
B. It can only be used outside of functions
C. It can be used both inside and outside of functions
D. It cannot be used within loops

Answer: C. It can be used both inside and outside of functions

Question: What is the output of the following code snippet?

  • A. “Output: So What Is Your Name?”
  • B. “Output: What Is Your Name?”
  • C. “Output: Your Name?”
  • D. “Output: Name?

Answer: B. “Output: What Is Your Name?”

Question: What is the purpose of grouping multiple case statements in a switch statement?

A. To execute the same code for multiple conditions
B. To avoid repeating code
C. To create a complex data structure
D. None of the above

Answer: A. To execute the same code for multiple conditions

Question: How can you take advantage of fall-through behavior in a switch statement?

  • A. Use a continue statement
  • B. Omit the break statement
  • C. Use a fallthrough keyword
  • D. Use a next statement

Answer: B. Omit the break statement

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