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Question 1

Handling an exception thrown by the interpreter with catch causes:

Options :

A : the execution of the program to be automatically aborted,but we can generate our own error message(not necessarily in the console)

B : further executing of the program to depend on the codewe place in the execution handler.

C : the program to continue executing until the last instruction,but we can generate our own error message(not necessarily in the console).

D : nothing to happen, because catch is not used for exception handling.

Answer: B

Question 2

Analyze the following code:

let msg "Hello World";

console.log(msg);

What exception will be thrown as a result of its execution attempt?

Options :

A :

TypeError

B :

SyntaxError

C :

ReferenceError

D :

RangeError

Answer: B

Question 3

The result of the operation false || "false" will be:

Options :

A : false

B : true

C : false

D : 0

Answer: A

Question 4

Most errors in JavaScript code that the interpreter encounterswhile the program is running cause exceptions to be thrown.What do unhandled exception do?

Options :

A : The interpreter ignores unhandled exceptions,the program continues to execute,and no information is received.

B : An error message appears in the consoleand the execution of the program is aborted.

C : An error message appears in the consoleand program execution continues.

D : The interpreter removes the erroneous piece of code,replaces it with corrected one,and continues the program execution.

Answer: B

Question 5

Analyze the code below:let a = 10;do { console.log(--a);} while (a > 3);Which statement can replace the do ... while from the example above?

Options :

A : while (a >= 3) console.log(a--);

B : while (a > 2) console.log(--a);

C : while (a > 3) console.log(--a);

D : while (a > 3) console.log(a--);

Answer: C