Computer Fundamentals and Programming Basics

The vector ["I", "LOVE", "INDIA"] contains exactly 3 elements. The length_of function returns the number of elements in the vector, not the total character count of all strings. Therefore, the correct answer is 3, not 11 (which would be the sum of character lengths).

The size_of function on a vector returns the product of all elements in this context: 2 * 3 * 4 = 24. Option A (3) would be the element count, not the size calculation.

is_valid(NULL) returns 0 (false) because NULL is not valid, then is_null(0) returns 0 (false) because 0 is not null. The chain is_null(is_valid(NULL)) evaluates to is_null(0) = 0.

1<<5 equals 32 (left shift: 1 * 2^5). Then 32>>1 equals 16 (right shift: 32 / 2^1). Neither 3, 5, nor 7 match the result 16.

string_replace("I"+"Love"+"Cricket","+","*") first concatenates with + to get "ILoveCricket", then replaces + with * in the string. Since there are no + characters in the concatenated result, it returns "ILoveCricket" unchanged.

string_char("A",1) returns the ASCII/unicode code of 'A' (65). Adding 1 gives 66. char_string(66) converts back to character, which is 'B'.

re_get_match with pattern "[601E]$" matches strings ending with 600100, 1, or 1E at the end ($). From "1E Siruseri...600100", the ending "600100" matches the [601E] pattern.

size_of on a string vector returns the total character count across all elements: "I" (1) + "LOVE" (4) + "INDIA" (5) = 10. Option A (3) is element count, not size. Option B (1) is incorrect. Option C (Error) is wrong. D is correct.

PARAM is a series of supercomputers designed and developed by C-DAC (Centre for Development of Advanced Computing) in India. The PARAM series began with PARAM 8000 in 1991 and has continued with several more powerful iterations. Super 301 is not a supercomputer, Compaq Presario is a personal computer, and CRAY YMP is American.

Compilers detect syntax errors, which are violations of the programming language's grammatical rules (keywords, punctuation, statement structure). Semantic errors involve incorrect logic or meaning, logical errors produce wrong results without breaking rules, and internal errors are compiler defects.

The Control Unit (CU) is a component of the CPU that directs the operation of the processor by fetching, decoding, and executing instructions. It decodes program instructions into control signals that command other parts of the CPU.

Ctrl+End is the standard keyboard shortcut to move the cursor to the end of a document. The End key alone only moves to the end of the current line, not the document.

Floppy disc, Magnetic Drum, and Magnetic Tape are all storage media/devices, not files. A file is a named collection of data stored on a medium. Since none of A, B, or C are files, D is the correct answer.

A printer produces output (printed documents) and does not accept input data from users. Therefore it is purely an output device, not input/output or input-only.

To convert an octal number to binary, convert each octal digit into its 3-bit binary equivalent. The digit 2 becomes 010, 3 becomes 011, and 7 becomes 111, resulting in 010 011 111.

Bangalore (now Bengaluru) is called the Silicon Valley of India due to its concentration of IT companies and startups, similar to how Silicon Valley in California is a tech hub.

CRM stands for Customer Relationship Management. It refers to strategies and technologies for managing interactions with customers to improve relationships and business growth.

Assembler, Compiler, and Interpreter are all language translators that convert source code to machine code. The Operating System is system software that manages hardware and resources, not a language translator - making it the odd one out.