Object Oriented Programming (OOPs) MCQs > FREE SET - 4

	1. The function whose prototype is void getData(Item *thing); receives
	A a pointer to a structure B a reference to a structure C a copy of a structure D nothing Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

---

	2. You may override the class access specifier for_________
	A public members B public and protected members C any specific class members you choose D no clas smembers Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

---

	3. The null character needs a space of
	A zero bytes B one byte C three bytes D four bytes Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

---

	4. The number of structures that can be declared in a single statement is
	A one B two C three D unlimited Free MCQs www.sharemcq.com     Answer: Option D Explanation: Available Soon. Workspace View Answer Workspace

---

	5. The cout << sales[0] + sales[1]; statement will__________
	A display 22000 B display 10000 + 12000 C display sales[0] + sales[l] D result in an error Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

---

	6. The most efficient data type for a variable that stores the letter C is the _________ data type
	A Character B Double C Float D Long Integer Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

---

	7. The C++ operator used to allocate memory is _________
	A mem B allocate C new D create Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

---

	8. Assume that your version of C++ can recognize only the first 8 characters of an identifier name, through identifier names may be arbitrarily long. Which of the following identifier names is not distinct:
	A list, list2 B address, Address C identifier_l, identifier_2 D answer, ANSWER Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

---

	9. A derived class may also be called a
	A subclass B super class C parent class D base class Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

---

	10. The C++ keyword for declaring a variable that contains a decimal point is ________
	A dec B decimal C float D floater Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

---

	11. When you define an object that is a member of a class, such as Student Abby; ________
	A a block of memory is set aside and all data members are assigned valid values B a block of memory is set aside C no memory is set aside until values are defined D no memory is set aside, but valid values are assigned to data members Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

---

	12. A program can directly access the __________ members of a class
	A hidden B private C public D both (B) and (C) Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

---

	13. Any output manipulator function you create _________
	A should take as an argument an instance of ostream as a reference B should return void C must be a member function of the ostream class D must inherit ostream Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

---

	14. The instructions you enter into the computer are called the _____
	A edited code B machine code C object code D source code Free MCQs www.sharemcq.com     Answer: Option D Explanation: Available Soon. Workspace View Answer Workspace

---

	15. The String data type is an extension of the _________ data type
	A Character B Double C Letter D Long Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

---

16. An advantage of using local variables is that _________

A they are known to all functions in the file B names used in one function do not affect data stored in variables with the same names in other functions C values given to local variables are retained when those parameters go out of scope D the program does not become "crowded" with too many variable names Free MCQs www.sharemcq.com     Answer: Option D Explanation: Available Soon. Workspace View Answer Workspace

---

	17. The difference between a return and a throw is that __________
	A with a throw, no value can be sent B with a return, no value can be sent C with a throw, execution takes place at the location from which the function was called D with a return, execution takes place at the location from which the function was called Free MCQs www.sharemcq.com     Answer: Option D Explanation: Available Soon. Workspace View Answer Workspace

---

	18. Which is a good reason for passing a variable's address to a function?
	A the function will have a copy of the variable B the function cannot change the value of the variable in the calling function C C++ requires that all variables used in a function be passed by address D the called function can change the value of the variable in the calling function Free MCQs www.sharemcq.com     Answer: Option D Explanation: Available Soon. Workspace View Answer Workspace

---

	19. Library header files usually contain
	A complete functions B parts of functions C function prototypes for functions stored in other files D function bodies, but not function headers Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

---

	20. A C++ term meaning "generic" is
	A argument B parameterized C universal D global Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

---

	21. Before object-oriented exception handling was practiced, ________
	A no run-time errors occurred B programmers could not deal with run-time errors C the most popular error-handling method was to terminate the program D the most popular error-handling method was to throw an exception Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

---

	22. The preprocessor directive always ends with
	A a comma B a semicolon C neither a semicolon nor a comma D "/" Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

---

	23. A constructor initialization list produces similar results to
	A overriding B assignment C redeclaring D output Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

---

	24. Which of the following stream manipulators advances the cursor to the next line on the computer screen?
	A adin B advin C edlin D endl Free MCQs www.sharemcq.com     Answer: Option D Explanation: Available Soon. Workspace View Answer Workspace

---

	25. The value 6.5 is a _________ constant.
	A character literal B named literal C numeric literal D string literal Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

---

	26. The time and memory involved in calling a function represent the function's __________
	A prototype B overhead C cost D burden Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

---

	27. Which function is most likely to have procedural cohesion?
	A main() B findSquareRoot() C getSaleSubtractDiscountAddTax() D openFiles() Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

---

	28. A pointer is
	A the address of a variable B an indication of the variable to be accessed next C a variable for storing addresses D the data type of an address variable Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

---

	29. The instruction "If it's raining outside, then take an umbrella to work" is an example of the _________ structure.
	A control B repetition C selection D sequence Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

---

	30. Which of the following statements will assign the address of the age variable to the agePtr pointer?
	A agePtr = &age; B agePtr = *age; C &agePtr = age; D *agePtr = age; Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

---

	31. The >> (extraction) operator stops reading characters from the keyboard as soon as the user __________
	A presses the Enter key B types a character that is inappropriate for the variable's data type C types STOP D both (A) and (B) Free MCQs www.sharemcq.com     Answer: Option D Explanation: Available Soon. Workspace View Answer Workspace

---

	32. The null character is represented by
	A \x0a B \\0 C \\o D \\r Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

---

	33. The break statement is
	A a preprocessor directive B an operator in the C++ language C a keyword in the C++ language D switch in the C++ language Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

---

	34. A variable w with a value 57 may be defined with ___________
	A int w = 57; B int w(57); C int 57(w); D both (A) and (B) , but not (C) Free MCQs www.sharemcq.com     Answer: Option D Explanation: Available Soon. Workspace View Answer Workspace

---

	35. An expression contains relational, assignment and arithmetic operators. In the absence of parentheses, the order of evaluation will be
	A assignment, relational, arithmetic B arithmetic, relational, assignment C relational, arithmetic, assignment D assignment, arithmetic, relational Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

---

	36. The keyword virtual indicates that
	A a derived class has public access to a base class B more than one base class exists C a base class should be used only once in inheritance D a derived class should have more than one base class constructed Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

---

	37. Variables that are declared in a block are known as ___________ variables to that block.
	A confined B local C global D immediate Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

---

	38. The pow and sqrt functions return a(n) __________ type number.
	A double B float C integer D long Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

---

	39. Declaring variables is advantageous because it
	A avoids errors from misspelled variable names B helps the linker work efficiently C simplifies the writing of very short programs D All of the above Free MCQs www.sharemcq.com     Answer: Option D Explanation: Available Soon. Workspace View Answer Workspace

---

	40. The generic name used for unexpected errors that occur during the execution of a program is
	A infractions B exceptions C deviations D anomalies Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

---

	41. The switch variable can be of
	A int type only B char type only C both int as well as char type D any type Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

---

	42. Reference variables and const class members ___________
	A must be assigned values in any derived class B must never be initialized in a base class C must be initialized, rather than assigned values D must not exist if a class is to be a base class Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

---

	43. You can code a default exception handler by creating a catch block
	A with no arguments B with a void argument C with an ellipsis as its argument D with an argument identical to that thrown Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

---

	44. Which of the following are void functions?
	A main B pow C sqrt D All of the above Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

---

	45. Hiding individual components of an entry is __________
	A polymorphism B encapsulation C scaling D not recommended in C++ Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

---

	46. When all of the operations in a function contribute to the performance of only one task, a function has
	A singular cohesion B tight cohesion C functional cohesion D sequential cohesion Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

---

	47. A function that uses variable types is called __________
	A overloaded B a template function C a variable function D a virtual function Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

---

	48. Having more than one function with the same name is called
	A overloading B defaulting C casting D referencing Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

---

	49. An object is ___________
	A a category of classes B a name given to a class C an instance of a class D the same as a class Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

---

	50. Assume a class Derv that is privately derived from class Base. An object of class Derv located in main() can access
	A public members of Base B protected members of Base C private members of Base D public members of Derv Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

---

---