C++ Programming Online Test3 preparation for interview

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1.If class A is friend of class B and if class B is friend of class C, which of the following is true?
Class C is friend of class A	Class A is friend of class C
Class A and Class C do not have any friend relationship	None of the above

2.The conditional compilation ______?
It is taken care of by the compiler	It is setting the compiler option conditionally
It is compiling a program based on a condition	none of above

3.Originally ‘C’ was developed as:
System programming language	General purpose language
Data processing language	None of above

4.Minimum number of temporary variagble needed to swap the contents of 2 variable is:
1	2
3	0

5.A direct access file is:
A file in which recoreds are arranged in a way they are inserted in a file	A file in which records are arranged in a particular order
Files which are stored on a direct access storage medium	None of the above

6.Which of the following is not an advantage of secondary memory
It is cost-effective	It has large storage capacity
It has highest speed	It is easily portable

7.An inverted file is _____?
Locates information about data in small files that are maintained apart from actual data record	A file which stores opposite records
A file which stores information about records of a system	None of above

8.Which of the following is not a file operation:
Repositioning	Truncating
Appending	None of above

9.Which of the following is not a component of file system
Access method	Auxiliary storage management
Free integrity mechanism	None of the above

10.Seek time is _____?
time taken to retrieve a data	Time taken by read/write head mechanism to position itself over appropriate cylinder
Time taken by appropriate sector to come under read/write	None of the above

11.Latency time is:
Time taken by read/write head mechanism to position itself over appropriate cylinder	Time taken to transfer a dta from memory
Time taken by appropriate sector to come under read/write head	None of above

12.‘Prime area’ in context of file system is defined as
It is memory area created by operating system	It is an area into which data records are written
It is the main area of a web page	None of the above

13.The two types of file structure existing in VSAM file are
Key sequenced structure, entry sequenced structure	Key sequence structure, exit sequenced structure
Entry sequence structure, exit sequenced structure	None of above

14.In mulit-list organization
Records that have equivalent value for a given secondary index item are linked together to form a list.	Records are loaded in ordered sequence defined by collating sequence by content of the key
Records are directly accessed by record key field	None of the above

15.Which of the following is/are advantages of cellular partitioned structure:
Simultaneous read operations can be overlapped	Search time is reduced
Both a & b	None of the above

16.*ptr++ is equivalenet to:
ptr++	*ptr
++*ptr	None of the above

17.Statement scanf(“%d”,80);
Assign an integer to variable i	Give an error message
Print the value of i	Assign an float to variable i

18.Value of ix+j, if i,j are integer type and ix long type would be
integer	float
long integer	double percision

19.In a C language ‘3’ represents ____?
A digit	An integer
A character	A word

20.In C language, a hexadecimal number is represented by writing
x	xo
ox	h