SS1 Second Term Data Processing Past Questions And Answers

SS1 data processing questions:

 

Question: What is the purpose of a data warehouse?

 

a) Real-time data processing

b) Short-term data storage

c) Long-term storage and analysis of historical data

d) Temporary data backup

 

Answer: c) Long-term storage and analysis of historical data

 

Question: What is a record in the context of a database?

 

a) A computer program

b) A collection of data fields

c) A type of data processing error

d) A backup copy of the database

 

Answer: b) A collection of data fields

 

Question: In data processing, what is data normalization?

 

a) Making data abnormal

b) Organizing data to reduce redundancy

c) Creating data backups

d) Increasing data complexity

 

Answer: b) Organizing data to reduce redundancy

 

Question: Which data structure is often used for quick search and retrieval in data processing?

 

a) Array

b) Linked list

c) Queue

d) Hash table

 

Answer: d) Hash table

 

Question: What does the acronym CRUD stand for in database operations?

 

a) Create, Read, Update, Delete

b) Copy, Replace, Undo, Duplicate

c) Cut, Resize, Update, Deploy

d) Compile, Run, Update, Delete

 

Answer: a) Create, Read, Update, Delete

 

Question: What is the difference between data and information?

 

a) Data is unprocessed, and information is processed data

b) Data and information are the same

c) Information is unprocessed, and data is processed data

d) Data and information both refer to processed results

 

Answer: a) Data is unprocessed, and information is processed data

 

Question: Which data processing task involves detecting and correcting errors in data?

 

a) Data encryption

b) Data validation

c) Data duplication

d) Data retrieval

 

Answer: b) Data validation

 

Question: What is a data model?

 

a) A type of computer mouse

b) A visual representation of data relationships

c) A backup storage device

d) A programming language

 

Answer: b) A visual representation of data relationships

 

Question: In the context of databases, what is a query?

 

a) A question or request for information from the database

b) A type of data validation

c) A method of data encryption

d) A data backup operation

 

Answer: a) A question or request for information from the database

 

Question: What is data warehousing?

 

a) The process of organizing data for analysis

b) A facility for storing large amounts of raw data

c) Long-term storage and analysis of historical data

d) Creating backups of data

 

Answer: c) Long-term storage and analysis of historical data

 

Question: What is the purpose of data compression in data processing?

 

a) Increase data storage space

b) Decrease data storage space

c) Speed up data processing

d) Delete unnecessary data

 

Answer: b) Decrease data storage space

 

Question: Which data type is used for storing decimal numbers in programming?

 

a) Float

b) Integer

c) Boolean

d) String

 

Answer: a) Float

 

Question: What is the role of indexing in a database?

 

a) Organizing data into tables

b) Creating backup copies of data

c) Enhancing data security

d) Speeding up data retrieval

 

Answer: d) Speeding up data retrieval

 

Question: What does the acronym DBMS stand for in data processing?

 

a) Data Backup and Management System

b) Database Management System

c) Data Balance and Monitoring System

d) Digital Backup and Maintenance System

 

Answer: b) Database Management System

 

Question: Which data processing concept involves combining data from multiple sources into a single, coherent view?

 

a) Data validation

b) Data consolidation

c) Data normalization

d) Data retrieval

 

Answer: b) Data consolidation

 

Question: What is the purpose of a data dictionary in database management?

 

a) Define and describe data elements

b) Create new data

c) Encrypt data for security

d) Delete unnecessary data

 

Answer: a) Define and describe data elements

 

Question: What is the significance of a foreign key in a relational database?

 

a) A key used for encrypting sensitive data

b) A unique identifier for each record

c) A reference to a primary key in another table

d) A backup copy of the database

 

Answer: c) A reference to a primary key in another table

 

Question: In data processing, what is data warehousing?

 

a) The process of organizing data for analysis

b) A facility for storing large amounts of raw data

c) Long-term storage and analysis of historical data

d) Creating backups of data

 

Answer: c) Long-term storage and analysis of historical data

 

Question: What is a data mart?

 

a) A small data warehouse

b) A programming language

c) A type of data validation

d) A backup storage device

 

Answer: a) A small data warehouse

 

Question: What is the purpose of data cleansing in data processing?

 

a) Organizing data for analysis

b) Removing err

ors and inconsistencies from data

c) Encrypting sensitive data

d) Creating backup copies of data

 

Answer: b) Removing errors and inconsistencies from data