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PLTW Computer Science Essentials Unit 3 Questions with Correct Answers.
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PLTW Computer Science Essentials Unit 3 Questionswith Correct Answers
Cloud Correct Answer-The practice of using a network of remote
servers hosted on the internet to store, manage, and process data, rather
than a local server or a personal computer. A model for providing
constantly available data processing power and storage to many users at
once over the internet.
Python Correct Answer-A text-based language designed to emphasize
code readability with a syntax that allows programmers to express
concepts in fewer lines of code than possible in languages such as C++
or Java. (Python is a registered trademark of the Python Software
Foundation.)
Version Control System Correct Answer-Any means by which people
working with information can track changes, prevent conflicting data,
and keep track of the most current version of their files.
Syntax Correct Answer-The set of rules that defines the combinations of
symbols that are considered to be correctly structured in that language.
The grammar and spelling of text-based programming languages.
Conditional Statement Correct Answer-A programming statement that
evaluates a true/false Boolean expression to determine the next steps in a
program. Conditional statements are often written as 'if-then' or 'if-then-
else' statements.
, Boolean Value Correct Answer-One of two values, such as "true" or
"false", that allows a computer to know what step in the conditional
statement process to execute next.
Boolean Expression Correct Answer-A processing decision branch using
comparison operators (= ≠ > <) that is defined to return a Boolean value
("true" or "false"). By using Boolean expression to ask questions, the
program can determine what to do next.
Logical Operator Correct Answer-A representation of a logical
statement that is used to examine the relationship between two values
and determine whether the statement is true or false (Boolean
conditionals). Examples of logical operators include AND, OR, and
NOT.
Chained Conditional Statement Correct Answer-A series of conditionals
that a computer moves through until it finds the one that is true.
Nesting Correct Answer-Putting a function inside another function or a
loop inside another loop. One method is contained within another one.
Branch Correct Answer-An alternative path through a program, often
occurring as the result of the evaluation of an expression in a
conditional.
Function Correct Answer-In programming, a named section of a
program that performs a specific task. A function is a block of organized
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