C++ Institute CPP Certified Professional Programmer (CPP-22-02) Certification Sample Questions

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C++ Institute CPP-22-02 Sample Questions:

01. How do you insert a key-value pair into an std::map?
a) insert()
b) emplace()
c) operator[]
d) All of the above
 
02. What are valid uses of std::setw()?
a) To specify the minimum width for output
b) To control alignment in an output field
c) To pad output with default spaces or specified characters
d) To truncate output exceeding the width
e) To center-align output
 
03. You are tasked with finding the maximum element in a container and its position. Which algorithm should you use?
a) std::max()
b) std::max_element()
c) std::find()
d) std::count()
 
04. Which are valid use cases for lambda functions?
a) Passing as arguments to algorithms
b) Capturing local variables by value or reference
c) Declaring global functions
d) Defining inline, anonymous functions
e) Overloading operators in classes
 
05. How do you reset the formatting flags for an std::ostream object?
a) unsetf()
b) setf()
c) clear()
d) reset()
 
06. Which operations allow counting elements in a container?
a) std::count()
b) std::count_if()
c) std::find()
d) std::find_if()
e) std::search()
 
07. How do you define a class template in C++?
a) template<class T> class MyClass {}
b) template<typename T> class MyClass {}
c) template<class T, typename U> class MyClass {}
d) All of this
 
08. You need to find the range of positions where a specific value occurs in a sorted vector. Which algorithm should you use?
a) std::lower_bound()
b) std::upper_bound()
c) std::equal_range()
d) std::binary_search()
 
09. What is the primary purpose of using templates in C++?
a) To provide polymorphism at runtime
b) To reduce code duplication by supporting generic programming
c) To enable inheritance in classes
d) To optimize memory allocation
 
10. Which statements are true about std::binary_search()?
a) It works on sorted containers
b) It requires a comparator function
c) It returns a boolean indicating if the element is found
d) It modifies the container
e) It operates in O(log n) time complexity

Answers:

Question: 01
Answer: d		 Question: 02
Answer: a, b, c		 Question: 03
Answer: b		 Question: 04
Answer: a, b, d		 Question: 05
Answer: a
Question: 06
Answer: a, b		 Question: 07
Answer: d		 Question: 08
Answer: c		 Question: 09
Answer: b		 Question: 10
Answer: a, c, e

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