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. |
DDL is used for _______? |
| A. | Manage the changes made by DML statements |
| B. | Defining database schema |
| C. | Control access to data stored in a database |
| D. | None of the above |
| Answer» C. Control access to data stored in a database | |
| 2. |
Storing same data in many places is called. |
| A. | Iteration |
| B. | Concurrency |
| C. | Redundancy |
| D. | Enumeration |
| Answer» D. Enumeration | |
| 3. |
Which of the following is true? |
| A. | A relation in BCNF is always in 3NF. |
| B. | A relation in 3NF is always in BCNF. |
| C. | BCNF and 3NF are same. |
| D. | A relation in BCNF is not in 3NF |
| Answer» B. A relation in 3NF is always in BCNF. | |
| 4. |
Clock speed is measured in . |
| A. | Hertz |
| B. | Baud |
| C. | Bytes |
| D. | Bits persecond |
| Answer» B. Baud | |
| 5. |
The most frequently used UTP connector is . |
| A. | RJ45 |
| B. | EIA 232 |
| C. | category 5connector |
| D. | JR45 |
| Answer» B. EIA 232 | |
| 6. |
The region of memory sufficiently large to hold all pixels of thedisplay is called a . |
| A. | Frame buffer |
| B. | ROM |
| C. | CacheMemory |
| D. | RAM |
| Answer» B. ROM | |
| 7. |
Forty-five physical channels link devices arranged in a meshtopology. |
| A. | NINE (9) |
| B. | TWENTY (20) |
| C. | TEN (10) |
| D. | FORTY (40) |
| Answer» D. FORTY (40) | |
| 8. |
When you are creating a structure in C/C++, you need to use thekeyword |
| A. | struct |
| B. | structure |
| C. | record |
| D. | object |
| Answer» B. structure | |
| 9. |
is the protocol suite for the Internet which we use presently |
| A. | UNIX |
| B. | TCP/IP |
| C. | NCP |
| D. | ACM |
| Answer» C. NCP | |
| 10. |
The design of classes in a way that hides the details of implementation from the user is known as : |
| A. | Reusability |
| B. | DataAbstraction |
| C. | InformationHiding |
| D. | Encapsulation |
| Answer» E. | |
| 11. |
The processing speed of different computers is compared using : |
| A. | GHz |
| B. | RPM |
| C. | CPS |
| D. | MIPS |
| Answer» E. | |
| 12. |
The natural mask for class C IP address is _______ |
| A. | 255.255.255. 0 |
| B. | 255.0.0.0 |
| C. | 255.255.0.0 |
| D. | 255.255 .255.255 |
| Answer» B. 255.0.0.0 | |
| 13. |
Boolean expression for NAND gate with two inputs x and y can bewritten as : |
| A. | x + y |
| B. | xy + xy |
| C. | x + y |
| D. | x – y |
| Answer» D. x – y | |
| 14. |
Cache memory enhances |
| A. | Memoryaccess time |
| B. | Secondarystorage capacity |
| C. | Memorycapacity |
| D. | Secondarystorage access time |
| Answer» B. Secondarystorage capacity | |
| 15. |
Two’s complement of 1011.01 is : |
| A. | 1011.10 |
| B. | 0100.01 |
| C. | 0100.11 |
| D. | 0100.10 |
| Answer» D. 0100.10 | |
| 16. |
In C++, if a catch statement is written to catch exception objects of abase class type, it can also catch all ______ derived from that baseclass. |
| A. | Objects of classes |
| B. | Arguments |
| C. | Exceptionsfor objects |
| D. | Errors |
| Answer» D. Errors | |
| 17. |
The output of a gate is only 1 when all of its inputs are 1 : |
| A. | NOT |
| B. | AND |
| C. | XOR |
| D. | NOR |
| Answer» C. XOR | |
| 18. |
Who is associated with the development of ‘C’ language? |
| A. | CharlesBabbage |
| B. | Donald Knuth |
| C. | Dennis MRitchie |
| D. | Niklaus Wirth |
| Answer» D. Niklaus Wirth | |
| 19. |
Which is correct : |
| A. | A.A=0 |
| B. | A+A=A’ |
| C. | A’.A’ = 0 |
| D. | A+1=A |
| Answer» E. | |
| 20. |
In TCP, which layer is not present? |
| A. | transportlayer |
| B. | session layer |
| C. | physical layer |
| D. | data linklayer |
| Answer» C. physical layer | |
| 21. |
The basic storage element in a digital system is . |
| A. | flip flop |
| B. | multiplexer |
| C. | counter |
| D. | encoder |
| Answer» B. multiplexer | |
| 22. |
Referential integrity controls relationships between : |
| A. | instances of aclass |
| B. | attributes in atable |
| C. | tables in adatabase |
| D. | operations of an object |
| Answer» D. operations of an object | |
| 23. |
AB + AB’ = |
| A. | A |
| B. | 0 |
| C. | B |
| D. | 1 |
| Answer» B. 0 | |
| 24. |
Which one of the following is a direct benefit of databasenormalization? |
| A. | smallernumber of tables |
| B. | reduced dataredundancy |
| C. | higher queryprocessing |
| D. | reduced I/Ofor most queries |
| Answer» C. higher queryprocessing | |
| 25. |
In UNIX, which command is used to sort the lines of data in a file inreverse order |
| A. | sort – r |
| B. | sort |
| C. | sh |
| D. | st |
| Answer» B. sort | |
| 26. |
Any user-defined exception class is a subclass of the _____ class. |
| A. | Abstract |
| B. | Exception |
| C. | Logical |
| D. | Package |
| Answer» C. Logical | |
| 27. |
The ability to modify the conceptual schema without causing anychange to the application program is known as : |
| A. | Logical dataindependence |
| B. | Static data |
| C. | External dataindependence |
| D. | Physical dataindependence |
| Answer» B. Static data | |
| 28. |
Which one of the following is provided by a data dictionary? |
| A. | Functionaldata |
| B. | User data |
| C. | Sorted data |
| D. | Databasestructure data |
| Answer» E. | |