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1.2 Algorithms
1.2.2 Utilizing programming constructs:
c. Repetition:
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Cards (114)
What is repetition in programming?
Executing instructions multiple times
Iteration involves applying a process to a sequence of values repeatedly.
True
A while loop executes as long as a specified condition is
true
A for loop is typically used when the number of
iterations
is known in advance.
True
A while loop continues executing as long as its condition is
true
Arrange the benefits of using loops and iterations in order of their impact on program design:
1️⃣ Data Processing
2️⃣ Task Automation
3️⃣ Scalability
4️⃣ Versatility
Which type of loop is ideal for checking user input until a valid value is provided?
While loop
Repetition in programs allows for efficient
data
processing.
What type of loop checks user input repeatedly until valid?
While loop
A while loop can check user input repeatedly until
valid
.
True
Match the loop type with its use case:
While loop ↔️ Unknown number of iterations
For loop ↔️ Known number of iterations
Repeat-until loop ↔️ Executes code at least once
The condition in a for
loop
determines when the loop stops executing.
True
A loop repeatedly executes a block of code until a specific condition is
met
What is the purpose of repetition in programs?
Data processing and automation
Match the repetition statement with its description:
While loop ↔️ Repeats until a condition is false
For loop ↔️ Repeats a fixed number of times
Repeat-until loop ↔️ Repeats until a condition is true
When does a repeat-until loop stop executing?
When the condition is false
What is the primary advantage of using repetition statements in programming?
Efficient data processing
Repetition in programs reduces the need for manual intervention in complex tasks.
True
What is the purpose of repetition in programs?
Efficient data processing
Task automation is a benefit of using repetition in
programs
.
True
The main repetition statements in programming include while loops, for loops, and
repeat-until
loops.
Describe the purpose of a while loop.
Executes code while true
What are the three main components of a for loop structure?
Initialization, condition, increment
A for loop executes a block of code a fixed number of
times
.
The condition in a
while loop
is evaluated at the start of each iteration.
True
Match the loop characteristic with its corresponding loop type:
Unknown number of iterations ↔️ While loop
Fixed number of iterations ↔️ For loop
What is an example use case for a while loop?
Checking user input
The condition in a
while loop
is evaluated at the start of each iteration.
True
In a while loop, the condition is evaluated at the start of each
iteration
.
The iteration control in a for loop is managed by initialization, condition, and
increment/decrement
.
True
Match the loop type with its characteristic:
While Loop ↔️ Condition-controlled iteration
For Loop ↔️ Fixed-iteration count
Repetition allows a set of instructions to be executed multiple
times
.
Repetition is crucial for automating tasks and processing large amounts of
data
.
Repetition enables
programs
to handle complex operations without manual intervention.
True
Which benefit of repetition simplifies the design of complex algorithms?
Versatility
Match the repetition statement with its description:
While Loop ↔️ Executes code while a condition is true
For Loop ↔️ Executes code a fixed number of times
Repeat-Until Loop ↔️ Executes code until a condition is false
A while loop can repeatedly check user input until a valid
value
is entered.
A for loop is often used when the number of iterations is known.
True
The while loop executes code repeatedly as long as a specified
condition
What is the purpose of the repeat-until loop?
Execute until condition is false
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