17.2   Multiple Choice 1) Programming languages most helpful to programmers because

Question : 17.2   Multiple Choice 1) Programming languages most helpful to programmers because : 1907250

17.2   Multiple Choice

1) Programming languages are most helpful to programmers because they:

A) are precise

B) are very close to English

C) allow for only a single possible solution for a problem

D) automate the process

2) From language to language, generally an identifier:

A) can be made up of only letters

B) cannot contain numbers, spaces, or lowercase letters

C) starts with a letter and is followed by letters, numerals, or the underscore

D) starts with two digits followed by letters or numbers

3) Which of the following is a valid JavaScript variable name?

A) 0123

B) 37AB

C) BR549

D) Tax Rate

4) In JavaScript, the escape symbol is the:

A) slash (/)

B) backslash (\)

C) colon (:)

D) semicolon (;)

5) Which of the following is not a suitable assignment statement?

A) wages = hours * rate

B) length * width = area

C) class = "College Algebra"

D) score = 92.8

6) The value used for a variable on the right side of an assignment statement is:

A) the value before the statement is executed

B) the value after the statement is executed

C) can be updated before the newly_computed_value is assigned to the variable_receiving_new_value

D) none of the above

7) The first step in solving a programming expression is to process:

A) the part of the expression inside the parentheses

B) multiplication and division

C) addition and subtraction

D) the statement on the left

8) In JavaScript, 17%5 is:

A) the name of a variable

B) 2

C) 3

D) the same as 17/5

9) An if statement must have:

A) the word then in it

B) the <then-statement> on a separate line

C) a semicolon at the end of it

D) all of the above

10) In JavaScript, an empty string:

A) contains a single space enclosed in double quotes

B) is not valid

C) is the same as an undefined value

D) is written as ""

11) String constants or string literals:

A) are stored in memory with the surrounding quotes or double quotes

B) are surrounded by quotes in JavaScript code

C) can’t include a tab character

D) all of the above

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English 11 Months Ago 356 Views
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