Mod 9 Day 2

Question 1

What kind of program does a script require to change the source code into machine code

Answer 1

Interpreter

Question 2

True or false, unlike an interpreter the compiler reads one line of code parses and understands the code converts it into machine code and executes the line of code

Answer 2

False

Question 3

An interpreter ensures that a single line of source code is in the correct syntax and translates it into machine code

Answer 3

True

Question 4

a compiler ensures that every line of the source code is correct syntax translates all of it into machine code and executes all the instructions

Answer 4

False

Question 5

In object-oriented programming an object is known as the blueprint of a class and it does not exist until initiated by the programmer

Answer 5

False

Question 6

The following scripting languages use objects. Choose all that apply
A. Bash
B. HTML
C. Python
D. PowerShell

Answer 6

B
C
D

Question 7

Which of the following are General types of decision statements:
A. If
B. For
C. Foreach
D.while

Answer 7

A
B
C
D

Question 8

Choose all that apply. Which of the following are General types of looping statements
A. If
B. For
C. Foreach
D. While

Answer 8

A
B
C
D

Question 9

Choose all that apply. The loop can stop in interation or exit early using the following statements:
A. Break
B. Continue
C. Return
D. All of the above

Answer 9

A

B

Question 10

Which of the following statements are true?
A. Variables do not need to be declared before use
B. Variables can be used after declaring them
C. Variables never have a data type
D. All programming languages have the data type of an integer

Answer 10

B

Question 11

Choose all that apply. typically in an interpreted language to declare a variable you need to supply which of the following pieces of information.
A. An identifier / name
B. A data type
C. An initial value
D. An assignment operator

Answer 11

A
B
C

Question 12

This is a variable that contains multiple values often of different data types

Answer 12

Array

Question 13

These structures are made up of branching and looping statements which determine which sections of code executes and how many times specific code segments execute

Answer 13

Flow control

Question 14

There are three basic scripting components what are they

Answer 14

Sequential action
Repetition structure
Branching structure

Question 15

A linear progression of tasks such as input, output, and computation

Answer 15

Sequential action

Question 16

This allows a script to choose which series of instructions to execute. Using the keyword IF a computer makes a decision using a Boolean expression on whether or not certain instructions execute

Answer 16

Branching

Question 17

These structures cause a script to execute a set of actions multiple times like branching statements Loops use Boolean conditions to determine if it’s code block should execute some keywords for Loops are while and for.

Answer 17

Repetition structures

Question 18

If the resulting Boolean condition returns a True Value the script executes the body of the loop. This is done for duration not an amount.

Answer 18

While statement

Question 19

Often called a counting Loop because iterates through a sequence of numbers. This is done for a known quantity, it counts, and sets number of interations.

Answer 19

For statement

Question 20

Specifies the instructions a computer is to perform and is written using interpreted programming languages

Answer 20

Script source code

Question 21

Terminate the current Loop and immediately continue with the next statement after the newly terminated loop body

Answer 21

Break

Question 22

Terminate the current Loop iteration and immediately execute the next iteration of the loop without completing the current iteration

Answer 22

Continue

Question 23

These store information that can be easily referenced and manipulated in a script and provide a way of labeling a type of data with a descriptive name so scripts are easily understood by the reader

Answer 23

Variables

Question 24

Define where a variable is accessible and how long its value is available

Answer 24

Variable scope

Question 25

What two terms are associated with arrays / lists

Answer 25

Index and element

Question 26

A blueprint that defines the abstract details of a thing to include its attributes and behaviors

Answer 26

Class

Question 27

Message of changing a value (data) from one data type to another

Answer 27

Typecasting