MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Given a method in a protected class, what access modifier do youuse to restrict access to that method to only the other members of thesame class? |
| A. | final |
| B. | static |
| C. | private |
| D. | protected |
| Answer» D. protected | |
| 2. |
public class Test { }What is the prototype of the default constructor? |
| A. | Test( ) |
| B. | Test(void) |
| C. | public Test( ) |
| D. | publicTest(void) |
| Answer» D. publicTest(void) | |
| 3. |
Which one of the following will declare an array and initialize it withfive numbers? |
| A. | Array a = newArray(5); |
| B. | int [] a ={23,22,21,20,19}; |
| C. | int a [] = newint[5]; |
| D. | int [5] array; |
| Answer» C. int a [] = newint[5]; | |
| 4. |
To ensure that every object in the array receives a destructor call,always delete memory allocated as an array with operator __________ |
| A. | destructor |
| B. | delete |
| C. | delete[] |
| D. | kill[] |
| Answer» D. kill[] | |
| 5. |
A constructor that accepts __________ parameters is called thedefault constructor. |
| A. | one |
| B. | two |
| C. | no |
| D. | three |
| Answer» D. three | |
| 6. |
Which of the following header file includes definition of cin andcout? |
| A. | istream.h |
| B. | ostream.h |
| C. | iomanip.h |
| D. | iostream.h |
| Answer» E. | |
| 7. |
Which of the following is not a type of inheritance? |
| A. | Multiple |
| B. | Multilevel |
| C. | Distributive |
| D. | Hierarchical |
| Answer» D. Hierarchical | |
| 8. |
Which of the following ways are legal to access a class data memberusing this pointer? |
| A. | this->x |
| B. | this.x |
| C. | *this.x |
| D. | *this-x |
| Answer» B. this.x | |
| 9. |
Which of the following concepts is used to implement late binding? |
| A. | Virtualfunction |
| B. | Operatorfunction |
| C. | Const function |
| D. | Staticfunction |
| Answer» B. Operatorfunction | |
| 10. |
Which one of the following options is correct about the statementgiven below? The compiler checks the type of reference in the objectand not the type of object. |
| A. | Inheritance |
| B. | Polymorphism |
| C. | Abstraction |
| D. | Encapsulation |
| Answer» C. Abstraction | |
| 11. |
Which of the following cannot be friend? |
| A. | Function |
| B. | Class |
| C. | Object |
| D. | Operatorfunction |
| Answer» D. Operatorfunction | |
| 12. |
Which of the following concepts means determining at runtimewhat method to invoke? |
| A. | Data hiding |
| B. | DynamicTyping |
| C. | Dynamicbinding |
| D. | Dynamicloading |
| Answer» D. Dynamicloading | |
| 13. |
Which of the following is not the member of class? |
| A. | Static function |
| B. | Friendfunction |
| C. | Const function |
| D. | Virtualfunction |
| Answer» C. Const function | |
| 14. |
Which of the following type of class allows only one object of it tobe created? |
| A. | Virtual class |
| B. | Abstract class |
| C. | Singleton class |
| D. | Friend class |
| Answer» D. Friend class | |
| 15. |
Which of the following operations can be performed on the file"NOTES.TXT" using the below code?FILE *fp;fp = fopen("NOTES.TXT", "r+"); |
| A. | Reading |
| B. | Writing |
| C. | Appending |
| D. | Read andWrite |
| Answer» E. | |
| 16. |
Which of the following cannot be checked in a switch-casestatement? |
| A. | Character |
| B. | Integer |
| C. | Float |
| D. | enum |
| Answer» D. enum | |
| 17. |
What is stderr ? |
| A. | standard error |
| B. | standard errortypes |
| C. | standard errorstreams |
| D. | standarderror |
| Answer» D. standarderror | |
| 18. |
Which header file should be included to use functions like malloc()and calloc()? |
| A. | memory.h |
| B. | stdlib.h |
| C. | string.h |
| D. | dos.h |
| Answer» C. string.h | |
| 19. |
What will you do to treat the constant 3.14 as a long double? |
| A. | use 3.14LD |
| B. | use 3.14L |
| C. | use 3.14DL |
| D. | use 3.14LF |
| Answer» C. use 3.14DL | |
| 20. |
The loop for,while,do-while are used in? |
| A. | Fortran 77 |
| B. | Pascal |
| C. | C |
| D. | none of theabove |
| Answer» D. none of theabove | |
| 21. |
Which of the following characters is allowed in variable names in C? |
| A. | comma |
| B. | dot |
| C. | blank |
| D. | Which of thefollowing is nota key word inC? |
| Answer» E. | |
| 22. |
Which of the following is not a key word in C language? |
| A. | for |
| B. | pop |
| C. | if |
| D. | union |
| Answer» C. if | |
| 23. |
Which of the is following can not be used as a variable name in C? |
| A. | else |
| B. | coal |
| C. | ram |
| D. | vendy |
| Answer» B. coal | |
| 24. |
Which of the following is not a valid variable? |
| A. | p_ce1 |
| B. | 1 p_ce |
| C. | p1_ce |
| D. | p_ced |
| Answer» C. p1_ce | |
| 25. |
Which of the following is not a valid real constant in C language? |
| A. | 426 |
| B. | 321.121 |
| C. | -621.231 |
| D. | 201.2314 |
| Answer» B. 321.121 | |
| 26. |
Which of the following is not a valid integer constant in C? |
| A. | 321 |
| B. | -162 |
| C. | -621.231 |
| D. | 1 |
| Answer» D. 1 | |
| 27. |
Which operator in C is called a ternary operator? |
| A. | if-then |
| B. | ++ |
| C. | ? |
| D. | ( ) |
| Answer» D. ( ) | |
| 28. |
Which among the following is a unconditional control structure? |
| A. | do-while |
| B. | if-else |
| C. | goto |
| D. | for |
| Answer» D. for | |
| 29. |
C supports how many basic looping constructs? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 6 |
| Answer» C. 4 | |
| 30. |
The printf() function returns which value when an errors occurs? |
| A. | Positive value |
| B. | Zero |
| C. | Negativevalue |
| D. | None of these |
| Answer» D. None of these | |
| 31. |
Which pair of function below is used for single character I or O? |
| A. | getchar() &putchar() |
| B. | scanf() &printf() |
| C. | Input () &output() |
| D. | None of these |
| Answer» B. scanf() &printf() | |
| 32. |
Can we override private virtual methods? |
| A. | Yes |
| B. | No |
| C. | Both |
| D. | None |
| Answer» C. Both | |
| 33. |
Is it possible to change the value of a variable while debugging a C#application? |
| A. | Yes |
| B. | No |
| C. | Both |
| D. | None |
| Answer» B. No | |
| 34. |
What is ENUM? |
| A. | It is used todefineconstants |
| B. | It is used todefine variables |
| C. | It is used toinitializevariables |
| D. | None |
| Answer» B. It is used todefine variables | |
| 35. |
DSL is an example of a(n) connection? |
| A. | network |
| B. | wireless |
| C. | slow |
| D. | broadband |
| Answer» E. | |
| 36. |
A hardware networking device used to connect two LANs or LANsegment? |
| A. | Bridge |
| B. | Router |
| C. | Hub |
| D. | Broad band |
| Answer» B. Router | |
| 37. |
The amount of the data can be transferred across a communicationsmedia? |
| A. | Base band |
| B. | Band width |
| C. | Network |
| D. | None of these |
| Answer» C. Network | |
| 38. |
A record is collection of? |
| A. | Data |
| B. | File |
| C. | Database |
| D. | None of these |
| Answer» C. Database | |
| 39. |
Types of servers are? |
| A. | Dedicated |
| B. | Non-dedicated |
| C. | Both a and b |
| D. | None of these |
| Answer» D. None of these | |
| 40. |
Linear topology is also called? |
| A. | Star topology |
| B. | Bus topology |
| C. | Ring topology |
| D. | Meshtopology |
| Answer» C. Ring topology | |
| 41. |
In which cable no electrical signal travels? |
| A. | Fiber optics |
| B. | UTP |
| C. | STP |
| D. | Coaxial cable |
| Answer» B. UTP | |
| 42. |
Which of the following items is not a UTP cable? |
| A. | CAT2 |
| B. | CAT3 |
| C. | CAT100 |
| D. | CAT5 |
| Answer» D. CAT5 | |