String Operations Mcqs

Our collections of Multiple choice questions and answers focuses on study of ” String Operations ” in Data Structures. These questions are chosen from a collection of most authoritative and best reference books on Data Structures. Our aim is to prepare an individual for competitive exams like NTS | GAT | ECAT | Data Warehouse jobs | Data Mining | DB administration jobs Software House and Computer Programmer jobs | University and College entrance exams and various tests and job interviews. One should practice our Mcqs to assimilate knowledge on String Operations comprehensively.

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2.
Pattern matching refers to string____________.

Searching

Matching problem

Both (a) and (b)

None of the above

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3.
Strcat function adds null character

Only if there is space

Always

Depends on the standard

Depends on the compiler

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4.
String concatenation means –

Combining two strings.

Extracting a substring out of a string.

Partitioning the string into two strings.

Comparing the two strings to define the larger one.

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5.
String operation such as strcat(s, t), strcmp(s, t), strcpy(s, t) and strlen(s) heavily rely upon.

Presence of NULL character

Presence of new-line character

Presence of any escape sequence

None of the mentioned

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6.
The library function used to find the last occurrence of a character in a string is

Strnstr()

Laststr()

Strrchr()

Strstr()

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7.
The return-type used in String operations are

Void only

Void and (char *) only

Void and int only

Void, int and (char *) only

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8.
What is the following code segment doing? void fn( ){ char c; cin.get(c); if (c != ‘ ’) { fn( ); cout.put(c); } }

The string entered is printed as it is.

The string entered is printed in reverse order.

It will go in an infinite loop.

It will print an empty line.

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9.
What is the return value of the following statement if it is placed in C program? strcmp(“ABC”, “ABC”);

33

1

Compilation Error

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10.
Which of the following function compares 2 strings with case-insensitively?

Strcmp(s, t)

Strcmpcase(s, t)

Strcasecmp(s, t)

Strchr(s, t)

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11.
Which of the following function is more appropriate for reading in a multi-word string?

Printf(),

Scanf(),

Gets(),

Puts(),

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12.
Which of the following function is used to find the first occurrence of a given string in another string?

Strchr()

Strrchr()

Strstr()

Strnset()

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13.
Which of the following function sets first n characters of a string to a given character?

Strinit()

Strnset()

Strset()

Strcset()

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14.
Which pre-defined function returns a pointer to the last occurence of a character in a string?

Strchr(s, c),

Strrchr(s, c),

Strlchr(s, c),

Strfchr(s, c),

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