Accountant/ Senior Assistant 2023 Official Paper — Kerala PSC PYQ Practice with Answers

Correct answer (Option A):\nA bit (short for binary digit) is the most basic and smallest unit of data in computer science and digital communications. It represents a logical state with one of two possible values, typically 0 or 1. All digital computation and storage are built on groups of these bits.\n\nWhy others are wrong:\nOption B (KB or Kilobyte) consists of 1,024 bytes, which is much larger. Option C (Nibble) represents a collection of 4 bits. Option D (Byte) consists of 8 bits. Since a bit cannot be subdivided further, it is the absolute smallest data unit.\n\nStudy tip:\nRemember the standard memory hierarchy: 1 Bit -> 1 Nibble (4 bits) -> 1 Byte (8 bits) -> 1 KB (1024 bytes) -> 1 MB -> 1 GB -> 1 TB.

Correct answer (Option D):\nMICR stands for Magnetic Ink Character Recognition, not Code Recognition or Card Read. Since the correct standard expanded form is not listed among the choices, 'None of these' is the correct selection.\n\nWhy others are wrong:\nOption A is incorrect because it uses the word 'Code' instead of 'Character'. Option B uses 'Meta Ink', which is a completely fabricated technical term. Option C uses 'Card Read', which misidentifies both the technology and its physical application.\n\nStudy tip:\nMICR technology is primarily used in the banking sector to verify the legitimacy or originality of paper documents, especially cheques. The special ink used is sensitive to magnetic fields.

Correct answer (Option B):\nThe shell command 'rd' (which stands for Remove Directory) or 'rmdir' is executed within the Windows Command Prompt to permanently delete an empty directory from the file system directory tree structure.\n\nWhy others are wrong:\nOption A (md) stands for Make Directory and is used to create a new folder. Option C (cd) stands for Change Directory and navigates between folders. Option D (ld) is not a standard built-in Windows shell command for directory operations.\n\nStudy tip:\nCommand Prompt utilities are essential for automated scripts. To delete a directory along with all its subdirectories and files in Windows, you use the 'rd /s' flag command parameters.

Correct answer (Option C):\nThe '/lib' directory (specifically under '/lib/modules/') houses the dynamic shared libraries and kernel modules that are critical for system booting and hardware interface configuration during standard Linux kernel operations.\n\nWhy others are wrong:\nOption A (/di) is an invalid or non-standard directory root name. Option B (/boot) contains static files needed for the boot loader, like the vmlinuz kernel image itself, but not operational modules. Option D (/proc) is a virtual system file tracking active system processes.\n\nStudy tip:\nUnderstand the standard Linux Filesystem Hierarchy Standard (FHS): /etc for configuration, /bin for essential binaries, /lib for kernel modules and library links, and /var for variable spooling data files.

Correct answer (Option C):\nMail merge is a feature integrated within word processing software packages that links a primary document template containing boilerplate text with a structured data source file containing individual contact names and mailing details to mass-produce individualized items seamlessly.\n\nWhy others are wrong:\nOption A (Macros) are recorded scripts used to automate sequential keyboard patterns or commands. Option B (Template) is a generic structural layout file that does not dynamically combine multiple individual addresses onto distinct letters on its own.\n\nStudy tip:\nMail merge operations require two primary files: the main document containing the generic letter layout and formatting field tags, and the data source file (such as an Excel or CSV file) listing the distinct recipient records.