Subex Sample Technical Placement Paper

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Subex Technical Latest Sample Placement Paper

"Correct" Answers Highlighted In Bold

1. Which one of the following is provided by a data dictionary?

A) Functional data

B) User data C) Sorted data D) Database structure data

2. The ability to modify the conceptual schema without causing any change to the application program is known as :

A) Logical data independence

B) Static data C) External data independence

D) Physical data independence

3. Any user-defined exception class is a subclass of the _____ class.

A) Abstract B) Exception C) Logical D) Package

4. In UNIX, which command is used to sort the lines of data in a file in reverse order

A) sort –r B) sort C) sh D) st

5. Which one of the following is a direct benefit of database normalization? A) smaller number of tables

B) reduced data redundancy

C) higher query processing

D) reduced I/O for most queries

6. AB + AB’ =

A) A B) 0 C) B D) 1

7. Referential integrity controls relationships between :

A) instances of a class

B) attributes in a table

C) tables in a database

D) operations of an object

8. The commonly used UNIX commands like date, ls, cat etc. are stored in .



A) /dev directory

B) /tmp directory

C) /bin directory

D) /unix directory

9. Can two classes contain member functions with the same name?

A) Yes, but only if the main program does not declare both kinds

B) Yes, this is always allowed

C) No D) Yes, but only if the two classes have the same name

10. The basic storage element in a digital system is .

A) flip flop B) multiplexer C) counter D) encoder

11. In TCP, which layer is not present?

A) transport layer

B) session layer C) physical layer D) data link layer

12. Which is correct :

A) A.A=0 B) A+A=A’ C) A’.A’ = 0 D) A+1=A

13. Who is associated with the development of ‘C’ language?

A) Charles Babbage

B) Donald Knuth C) Dennis M Ritchie

D) Niklaus Wirth

14. The output of a gate is only 1 when all of its inputs are 1 :

A) NOT B) AND C) XOR D) NOR

15. In C++, if a catch statement is written to catch exception objects of a base class type, it can also catch all ______ derived from that base class.

A) Objects of classes

B) Arguments C) Exceptions for objects

D) Errors

16. 110012—100012 =

A) 00001 B) 01000 C) 10000 D) 00100



17. 54__7 = 5. Which arithmetic operator can replace the blank to make the statement correct?

A) % B) / C) – D) *

18. The digit F in Hexadecimal system is equivalent to ________ in decimal system.

A) 17 8B) C) 15 D) 16

19. is a process model used to show the flow of data through a system and the work or processing performed by the system :

A) Use Case Diagram

B) Data Flow Diagram

C) Document Flow Diagram

D) Entity Relationship Diagram

20. Two’s complement of 1011.01 is :

A) 1011.10 B) 0100.01 C) 0100.11 D) 0100.10

21. Cache memory enhances .

A) Memory access time

B) Secondary storage capacity

C) Memory capacity

D) Secondary storage access time

22. Boolean expression for NAND gate with two inputs x and y can be written as :

A) x + y B) xy + xy C) x + y D) x – y

23. 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

24. The processing speed of different computers is compared using :

A) GHz B) RPM C) CPS D) MIPS

25. _______ switching is well suited for voice communication while______ switching is better suited for data and other non-voice communication.



A) Circuit; packet

B) Circuit; message

C) Packet; circuit

D) Message; circuit

26. What standard include file is needed to use the exit ( ) function?

A) stdio.h B) std.h C) Stdlib.h D) None

27. A television broadcast is an example of transmission.

A) half-duplex B) Simplex C) automatic D) full-duplex

28. The design of classes in a way that hides the details of implementation from the user is known as :

A) Reusability B) Data Abstraction

C) Information Hiding

D) En capsulation

29. is the protocol suite for the Internet which we use presently

A) UNIX B) TCP/IP C) NCP D) ACM

30. When you are creating a structure in C/C++, you need to use the keyword A) struct B) structure C) record D) object

31. Forty-five physical channels link devices arranged in a mesh topology.

A) NINE (9) B) TWENTY (20) C) TEN (10) D) FORTY (40)

32. The region of memory sufficiently large to hold all pixels of the display is called a .

A) Frame buffer B) ROM C) Cache Memory

D) RAM

33. The most frequently used UTP connector is .

A) RJ45 B) EIA 232 C) category 5 connector

D) JR45



34. Three players A, B, C are in a race. A is twice as likely to win as B and B is twice as likely to win as C. Then the probability that B wins =

A) 2/7 B) 1/2 C) 2/3 D) 1/3

35. The Internet began as an experimental network called

A) ARPA B) DotNET C) ARPANET D) Intranet

36. Clock speed is measured in .

A) Hertz B) Baud C) Bytes D) Bits per second

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Subex Sample Technical Placement Paper