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. |
Refreshing Dynamic memory means? |
| A. | Capacitor must recharged periodically |
| B. | Capacitor must discharged periodically |
| C. | Removing capacitor |
| D. | None of the above |
| Answer» B. Capacitor must discharged periodically | |
| 2. |
__________ is technology that allows someone to turn on a network computer remotely by sending a special data packet. |
| A. | WAN |
| B. | WHOL |
| C. | WOL |
| D. | Windows Mesh |
| Answer» D. Windows Mesh | |
| 3. |
Froms that are used to organize business data into rows and columns are called? |
| A. | Transaction Sheet |
| B. | Register |
| C. | Business Forms |
| D. | Spreadsheets |
| Answer» E. | |
| 4. |
BIOS stands for? |
| A. | Bit In Out Service |
| B. | Basic Input Output Structure |
| C. | Basic Input Output System |
| D. | All the above |
| Answer» D. All the above | |
| 5. |
A flowchart is a ______. |
| A. | type of diagram that represents an algorithm or process |
| B. | pictorial representation of program |
| C. | designing and documentation of complex processes or programs |
| D. | All the above |
| Answer» E. | |
| 6. |
How to set value of "query_cache_size" MYSQL system variable |
| A. | SET GLOBAL query_cache_size = 41980; |
| B. | SET GLOBAL VARIABLE query_cache_size = 41980; |
| C. | SET VARIABLE GLOBAL query_cache_size = 41980; |
| D. | None of the above |
| Answer» B. SET GLOBAL VARIABLE query_cache_size = 41980; | |
| 7. |
How to see currently running queries in MySQL? |
| A. | SHOW PROCESSLIST; |
| B. | SHOW FULL PROCESSLIST; |
| C. | SHOW PROCESSLISTG |
| D. | All the above |
| Answer» E. | |
| 8. |
Which is right statement to kill process/thread in MySQL? |
| A. | KILL ALL thread_id/process_id |
| B. | KILL thread_id/process_id |
| C. | REMOVE thread_id/process_id |
| D. | None of the above |
| Answer» C. REMOVE thread_id/process_id | |
| 9. |
What will be the output of this query UPDATE tab_name SET col1 = col1 + 1, col2 = col1; |
| A. | col1 and col2 have different value |
| B. | col1 and col2 have same value |
| C. | col2 has original value of col1 |
| D. | None of the above |
| Answer» C. col2 has original value of col1 | |
| 10. |
Which is not a valid comment style in MySQL? |
| A. | # comment |
| B. | /* comment */ |
| C. | -- comment |
| D. | // |
| Answer» E. | |
| 11. |
What is IGNORE keyword in MySQL? |
| A. | Ignores Primary key or Unique key violations and continues processing with the next row |
| B. | Ignores Primary key or Unique key violations and leaves any remaining rows unprocessed. |
| C. | Do not ignores Primary key or Unique key violations |
| D. | None of the above |
| Answer» B. Ignores Primary key or Unique key violations and leaves any remaining rows unprocessed. | |
| 12. |
Which statement is used to connect with mysql server? |
| A. | mysql -h host_name -u user_name -p password |
| B. | mysql -u user_name -p password -h host_name |
| C. | mysql -p password -u user_name -h host_name |
| D. | All the above |
| Answer» E. | |
| 13. |
Which command returns current version on MySQL? |
| A. | SELECT MySQLVERSION(); |
| B. | SELECT VERSION("MySQL"); |
| C. | SELECT VERSION(); |
| D. | All the above |
| Answer» D. All the above | |
| 14. |
Important advantage of using new and delete operators in C++ is |
| A. | Allocation of memory |
| B. | Frees the memory previously allocated |
| C. | Allocation of memory and frees the memory previously allocated |
| D. | Initialization of memory easily |
| Answer» D. Initialization of memory easily | |
| 15. |
_________ allows to create classes which are derived from other classes, so that they automatically include some of its "parent's" members, plus its own members. |
| A. | Overloading |
| B. | Inheritance |
| C. | Polymorphism |
| D. | Encapsulation |
| Answer» C. Polymorphism | |
| 16. |
Which of the following cannot be passed to a function in C++? |
| A. | Constant |
| B. | Structure |
| C. | Array |
| D. | Header file |
| Answer» E. | |
| 17. |
perror( ) function used to ? |
| A. | Work same as printf() |
| B. | prints the error message specified by the compiler |
| C. | prints the garbage value assigned by the compiler |
| D. | None of the above |
| Answer» C. prints the garbage value assigned by the compiler | |
| 18. |
Bitwise operators can operate upon? |
| A. | double and chars |
| B. | floats and doubles |
| C. | ints and floats |
| D. | ints and chars |
| Answer» E. | |
| 19. |
What is C Tokens? |
| A. | The smallest individual units of c program |
| B. | The basic element recognized by the compiler |
| C. | The largest individual units of program |
| D. | A & B Both |
| Answer» E. | |
| 20. |
What is Keywords? |
| A. | Keywords have some predefine meanings and these meanings can be changed. |
| B. | Keywords have some unknown meanings and these meanings cannot be changed. |
| C. | Keywords have some predefine meanings and these meanings cannot be changed. |
| D. | None of the above |
| Answer» D. None of the above | |
| 21. |
What is constant? |
| A. | Constants have fixed values that do not change during the execution of a program |
| B. | Constants have fixed values that change during the execution of a program |
| C. | Constants have unknown values that may be change during the execution of a program |
| D. | None of the above |
| Answer» B. Constants have fixed values that change during the execution of a program | |
| 22. |
Which operators are known as Ternary Operator? |
| A. | ::, ? |
| B. | ?, : |
| C. | ?, ;; |
| D. | None of the avobe |
| Answer» C. ?, ;; | |