Computer Science exam 1 (T/F)
A bit that is turned off is represented by the value -1
false
A computer is a single device that preforms different type of tasks for its users
false
According to the behavior of integer division , when an integer is divided by an integer the result will be float.
false
All programs are normally stored in ROM and are loaded into RAM as needed for processing.
false
Computers are designed to do just one job.
false
In Python, math expressions are always evaluated from left to right, no matter what the operators are.
false
In your Python program, you can used reserved words as variable names.
false
Python allows you to compare strings, but it is not case sensitive.
false
Python formats all floating-point numbers to two decimal places when outputting with the print statement.
false
Python used the same symbols for the assignment operator as for the equality operator.
false
Since a named constant is just a variable, it can change any time during a program's execution.
false
The Python language is not sensitive to the block of structuring code.
false
The Python language uses a compiler which is a program that both translate and executes the intersections in a high level language.
false
The not operator is a unary operator which must be used in a compound.
false
What is the result of the following Boolean expression, given that x=5, y=3 and z=8 ? not (x<y or z>x) and y<z
false
What is the result of the following Boolean expression, given that x=5, y=3 and z=8 ? x < y and z>x
false
short circuit evaluation is only preformed with the not operator
false
A flowchart is a tool used by programmers to design programs
true
A software developer is the person with the training to design, create, and test computer programs.
true
An action is single alternative decision structure is preformed only when the condition is true
true
Comments in Python begin with the # character.
true
Computer programs typically preform three steps: input is received, some process is preformed on the input and output is produced.
true
Decision structures are also known as selection structures
true
Expressions that are tested by the if statement are called Boolean expressions.
true
IDLE is an alternative method to using a text editor to write, execute, and test a Python program.
true
In Python, print statements written on separate lines do not necessarily output on separate lines.
true
Nested decision statements are one way to test more than one condition.
true
Python allows programmers to break a statement into multiple lines
true
RAM is a volatile memory used for temporary storage while a program is running.
true
The CPU understands instructions written in a binary machine language.
true
The \t escape character causes the output to skip over the next horizontal tab.
true
The if statement causes one or more statements to execute only when a Boolean expression is true.
true
The instruction set for a microprocessor is unique and is typically understood only by the microprocessors fo the same brand.
true
The main reason to use a secondary storage is to hold data for long periods of time, even when the power supply to the computer is turned off.
true
To place an entire block of statements within an if statement, you must indent the block.
true
Variables in Python must begin with a letter or underscore and include only letters, numbers, and no underscore, no punctuation characters or spaces allowed.
true
What is the result of the following Boolean expression, given that x=5, y=3 and z=8 ? x<y or z>x
true
When the addition (+) operator is used with two strings, it preforms string concatenation.
true
When using the camelCase naming convention, the first word of the variable name is written in lowercase and the first characters of all subsequent words are written in uppercase.
true