30 Ada Quiz Questions and Answers

Ada is a high-level, strongly-typed programming language that was designed with a focus on safety, reliability, and maintainability. It was developed by a team led by Jean Ichbiah at CII Honeywell Bull (now AdaCore) between 1977 and 1983. Ada is named after Ada Lovelace, who is considered the first computer programmer. The language is commonly used in critical systems and applications where safety and correctness are paramount, such as aerospace, defense, transportation, and medical industries.

Key features and characteristics of Ada include:

Strong Typing: Ada is a strongly-typed language, meaning variables must be explicitly declared with their data types, and strict type-checking is enforced by the compiler.

Safety and Reliability: Ada was designed to build highly reliable and safe software systems. It includes built-in features for exception handling and runtime error detection, which helps in developing robust applications.

Concurrency Support: Ada has native support for concurrent programming, allowing developers to create tasks and manage concurrent execution efficiently. It provides tasking constructs that aid in building multi-threaded applications.

Modularity and Package-Based Architecture: Ada encourages the use of modular programming through packages, which allow developers to encapsulate related data and procedures. Packages help organize code and facilitate code reuse.

Object-Oriented Programming (OOP) Features: While Ada is not a purely object-oriented language, it does support object-oriented principles such as encapsulation, inheritance, and polymorphism.

Article outline

• Part 1: 30 Ada quiz questions & answers
• Part 2: Download Ada questions & answers for free
• Part 3: Free online quiz creator – OnlineExamMaker

Part 1: 30 Ada quiz questions & answers

1. What is the primary focus of Ada programming language?
a) Performance optimization
b) Web development
c) Safety and reliability
d) Game development
Answer: c) Safety and reliability

2. Who is considered the first computer programmer and after whom the Ada programming language is named?
a) Grace Hopper
b) Ada Lovelace
c) Alan Turing
d) Charles Babbage
Answer: b) Ada Lovelace

3. Which of the following is true about Ada’s type system?
a) It allows implicit type conversions.
b) It enforces strong typing and explicit type declarations.
c) It automatically infers data types based on usage.
d) It allows the use of dynamic typing for flexibility.
Answer: b) It enforces strong typing and explicit type declarations.

4. What is the syntax used to declare a variable in Ada?
a) let var_name: data_type;
b) define var_name as data_type;
c) var_name := data_type;
d) var_name: data_type;
Answer: d) var_name: data_type;

5. In Ada, which keyword is used to create a new scope?
a) scope
b) block
c) module
d) package
Answer: b) block

6. Ada is especially well-suited for which type of applications?
a) Web development
b) Mobile apps
c) Safety-critical systems
d) Scientific simulations
Answer: c) Safety-critical systems

7. What does the ‘pragma’ keyword in Ada allow you to do?
a) Define a new data type
b) Import external libraries
c) Provide compiler instructions or control aspects of program execution
d) Declare a constant value
Answer: c) Provide compiler instructions or control aspects of program execution

8. In Ada, what is the purpose of the “end loop;” statement?
a) Terminate the program execution
b) End the current loop iteration and proceed to the next iteration
c) Close a file
d) Indicate the end of a loop block
Answer: b) End the current loop iteration and proceed to the next iteration

9. Which Ada construct is used for error handling and graceful program termination?
a) try-catch block
b) on exception
c) raise statement
d) catch exception
Answer: b) on exception

10. What does a protected type in Ada allow you to do?
a) Define a thread-safe data structure with synchronized access methods
b) Create a read-only variable
c) Implement encapsulation and inheritance
d) Enable dynamic type casting
Answer: a) Define a thread-safe data structure with synchronized access methods

11. How is a task defined in Ada?
a) task type TaskName is
b) define task TaskName as
c) new TaskName is
d) task TaskName:
Answer: a) task type TaskName is

12. What is the purpose of the “delay” statement in Ada?
a) Pause program execution for a specified duration
b) Interrupt a running task and move it to the back of the task queue
c) Halt the program and print an error message
d) Delay the compilation process
Answer: a) Pause program execution for a specified duration

13. What is the correct syntax to define an array in Ada?
a) array_name [index] of data_type;
b) array_name (index) is data_type;
c) array (index) is data_type;
d) array_name: array (index) of data_type;
Answer: d) array_name: array (index) of data_type;

14. How are arrays accessed in Ada?
a) Using square brackets [index]
b) Using parentheses (index)
c) Using the “at” keyword followed by the index
d) Using a period followed by the index
Answer: a) Using square brackets [index]

15. Which package is used for handling input and output in Ada?
a) system.io
b) io.streams
c) ada.io
d) ada.text_io
Answer: d) ada.text_io

Part 2: Download Ada questions & answers for free

16. What does the “all” keyword do in Ada when used in a context such as “use all type”?
a) Imports all data types from a package
b) Declares a variable that can hold multiple data types
c) Specifies the use of all available CPU cores for parallel execution
d) Imports all the public entities from a package
Answer: d) Imports all the public entities from a package

17. How are comments denoted in Ada?
a) // This is a comment
b) /* This is a comment */
c) ‘ This is a comment
d)
Answer: c) ‘ This is a comment

18. What is the purpose of the “abs” function in Ada?
a) To calculate the absolute value of a number
b) To return the ASCII code of a character
c) To convert a string to uppercase
d) To calculate the average of a list of numbers
Answer: a) To calculate the absolute value of a number

19. Which of the following is true about Ada’s tasking features?
a) Tasks can communicate with each other only through shared global variables.
b) Ada does not support multi-threading or concurrent programming.
c) Tasks can communicate and synchronize using rendezvous and entry calls.
d) Tasking features in Ada are limited to low-level system programming.
Answer: c) Tasks can communicate and synchronize using rendezvous and entry calls.

20. In Ada, how do you define a constant value?
a) constant value: data_type;
b) define value as constant data_type;
c) value: constant data_type;
d) constant value = data_type;
Answer: c) value: constant data_type;

21. How are logical operators represented in Ada?
a) && (and), || (or), ! (not)
b) AND, OR, NOT
c) AND THEN, OR ELSE, NOT
d) & (and), | (or), ~ (not)
Answer: c) AND THEN, OR ELSE, NOT

22. What is the purpose of the “case” statement in Ada?
a) To define a new data type with multiple cases
b) To handle exceptions
c) To define a loop with a fixed number of iterations
d) To evaluate different conditions and execute different code blocks accordingly
Answer: d) To evaluate different conditions and execute different code blocks accordingly

23. Which attribute is used to get the length of a string in Ada?
a) length
b) size
c) count
d) len
Answer: b) size

24. What does the “task body” section contain in an Ada task?
a) The main logic of the task’s execution
b) The task’s data and variables
c) The task’s entry calls
d) The task’s declarations and specifications
Answer: a) The main logic of the task’s execution

25. Which function is used to convert a string to an integer in Ada?
a) Str_To_Int
b) Convert.ToInt
c) To_Integer
d) Integer’Value
Answer: d) Integer’Value

26. In Ada, how do you terminate a program immediately and raise an exception?
a) End_Program;
b) Raise_Exception;
c) Terminate;
d) raise Program_Exception;
Answer: c) Terminate;

27. How is the “exit” statement used in Ada?
a) To exit a loop or a block prematurely
b) To terminate a program gracefully
c) To release the resources used by a task
d) To exit a task and return to the calling task
Answer: a) To exit a loop or a block prematurely

28. What does the “limited” keyword indicate when used to define a record type in Ada?
a) The record can have an unlimited number of fields
b) The record can only have a limited number of fields
c) The record cannot be extended with additional fields
d) The record is limited to read-only access
Answer: c) The record cannot be extended with additional fields

29. What is the purpose of the “pragma Suppress” in Ada?
a) To hide compiler warnings and messages
b) To disable certain compiler optimizations
c) To prevent certain checks and validations during compilation
d) To ignore specific code blocks during program execution
Answer: c) To prevent certain checks and validations during compilation

30. In Ada, how are record fields accessed?
a) Using the dot notation (record.field)
b) Using the arrow notation (record->field)
c) Using the colon notation (record:field)
d) Using square brackets (record[field])
Answer: a) Using the dot notation (record.field)

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