Question 1

What is the primary difference between binary search and linear search?

Accepted Answer

Binary search only works on sorted arrays

Answer

Linear search is faster than binary search

Answer

Linear search requires a sorted array

Answer

Binary search checks every element in the array

Question 2

In which of the following scenarios would linear search be preferred over binary search?

Accepted Answer

When the data set is unsorted

Answer

When you need the fastest search possible

Answer

When the data set is small

Answer

When the data set is sorted

Question 3

Which search algorithm would be the most efficient for finding a specific number in a sorted array of 1,000,000 elements?

Accepted Answer

Binary search

Answer

Jump search

Answer

Exponential search

Answer

Linear search

Question 4

What is a key requirement for the binary search algorithm to function correctly?

Accepted Answer

The array must be sorted

Answer

The array must be a specific size

Answer

The array must be reversed

Answer

The array must contain unique elements

Question 5

What happens in a binary search if the value being searched for is not in the array?

Accepted Answer

The search will eventually return an indication that the value is not found

Answer

The search will keep searching indefinitely

Answer

The search will crash the program

Answer

The search will return the last element checked

Question 6

Which of the following best describes the efficiency of a linear search compared to a binary search?

Accepted Answer

Linear search is generally slower for large datasets

Answer

Linear search has the same efficiency as binary search

Answer

Linear search is always faster than binary search

Answer

Linear search is less complex than binary search

Question 7

What is the main advantage of using binary search over linear search?

Accepted Answer

It reduces the search space significantly with each comparison

Answer

It guarantees finding the element in fewer checks

Answer

It is easier to implement than linear search

Answer

It works on both sorted and unsorted arrays

Question 8

Which of the following is a best practice for improving the maintainability of code?

Accepted Answer

Using meaningful variable names

Answer

Using random characters for variable names

Answer

Avoiding comments and documentation

Answer

Writing code in a single line

Question 9

What is the purpose of code comments in programming?

Accepted Answer

To explain the logic and functionality of the code

Answer

To replace variable names

Answer

To make the code run faster

Answer

To confuse the reader

Question 10

How does code readability affect maintainability?

Accepted Answer

Readable code is easier to understand and modify

Answer

Readable code is always slower

Answer

Readable code cannot be modified

Answer

Readable code is more complex

Question 11

Which of the following is a valid variable name in Python?

Accepted Answer

my_variable

Answer

my-variable

Answer

2ndValue

Answer

@username

Question 12

Why are variable names in Python case-sensitive?

Accepted Answer

To allow for different variables to be defined using the same letters in different cases.

Answer

To avoid confusion with keywords.

Answer

To make variable names longer.

Answer

To improve performance of the code.

Question 13

Which of the following variable names is a valid convention for naming variables in Python?

Accepted Answer

total_score

Answer

total-score

Answer

TotalScore

Answer

1score

Question 14

Which of the following is a valid way to declare a variable in Python?

Accepted Answer

score = 100

Answer

let score = 100

Answer

100 = score

Answer

score: 100

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