Computer Science - IT MCQs
Topic Notes: Computer Science - IT
<p>MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.</p>
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
101
Which of the following is considered an effective method for gathering data and information?
Answer:
Questionnaire
A questionnaire is a structured research instrument consisting of a series of questions designed to collect information from respondents. It is widely regarded as an efficient and standardized way to gather quantitative and qualitative data from a large group of people for analysis and research purposes.
102
What term describes data that has been organized into a meaningful and intelligible format?
Answer:
information
In computing, data refers to raw, unorganized facts. When this data is processed, organized, and structured to provide context or meaning, it is referred to as information. Information is the final output that is useful for decision-making and analysis.
103
Which type of file is primarily utilized to store data that remains relatively static or permanent over time?
Answer:
Master file
A master file is a collection of records that contains relatively permanent data, such as customer details or inventory lists. Unlike transaction files, which record daily activities and are frequently updated, the master file serves as the primary reference point for an organization's information system.
104
What is the term for the processed output generated by a computer system?
Answer:
Information
Computers operate by taking raw input, known as data, and processing it through various instructions. Once this data is processed, organized, and structured to become meaningful and useful to the user, it is referred to as information.
105
Which sequence correctly represents the ascending order of the data hierarchy?
Answer:
Bit - Byte - Field - Record - File - Database
Data hierarchy defines how data is organized from the smallest unit to the largest. The sequence starts with a bit, which forms a byte. Bytes are used to define fields, which are then grouped into records. A collection of related records constitutes a file, and a collection of related files is organized into a database.
106
Which of the following is recognized as a standard type of file?
Answer:
Master File
In database management and file system organization, a master file is a fundamental category used to store the primary, long-term records of an application. It is a standard classification alongside transaction and backup files.
107
Which of the following file types is categorized as a temporary file used during data processing?
Answer:
Transaction file
A transaction file is a temporary file that contains data related to specific events or activities. It is used to update the master file and is typically discarded or archived after the processing cycle is complete.
108
What is the formal term for the process of organizing data into a specific, logical sequence?
Answer:
Sorting
Sorting is the fundamental data processing operation that arranges items in a defined order, such as alphabetical, numerical, or chronological sequences. This process is critical for data management, as it allows users to locate information efficiently, identify patterns, and prepare datasets for further analysis or reporting within database and spreadsheet applications.
109
Which sequence correctly represents the hierarchical organization of data within a database system?
Answer:
bits, characters, fields, records, files
The data hierarchy describes the structure of data from the smallest unit to the largest. It begins with bits (binary digits), which form characters (bytes). Characters are grouped into fields, fields are grouped into records, and records are grouped into files or tables, which ultimately constitute the database.
110
What term refers to processed data that has been organized to enhance understanding and support specific decision-making purposes?
Answer:
information
Information is defined as data that has been processed, organized, structured, or presented in a given context to make it useful. While raw data consists of unorganized facts or figures, information provides the necessary meaning and context required for humans or systems to gain knowledge and make informed decisions.