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Data Processing (Objective & Essay) Tuesday, 8th August.
Data Processing (Objective & Essay)
10:00am – 1:00pm
NECO Data Processing (Objective & Essay) OBJ/Theory Paper is Out
DATA PROCESSING-ESSAY- ANSWERS
Disk space analyzer
[PICK ANY ONE]
(i) Helps to identify files and folders that are taking up too much space on the hard drive
(iii) Allows for the sorting of large files and folders by size
(iv) Facilitates the deletion of unnecessary files and folders
(v) Enables the user to free up disk space for other applications
(vi) Helps to optimize the performance of the computer by reducing unnecessary file clutter.
[PICK ANY ONE]
(i) Creates backup copies of data files and settings
(ii) Provides an automated backup schedule to keep the data up-to-date
(iii) Offers different types of data backups such as full differential or incremental
(iv) Ensures data security by providing encryption and password protection
(v) Allows the user to restore data from backups in case of system failure or data loss
(vi) Helps to ensure the continuity of business operations in the event of a disaster.
[PICK ANY ONE]
(i) Scans the Windows Registry for errors and invalid entries
(ii) Cleans up obsolete redundant and unwanted registry entries
(iii) Helps to improve the overall performance of the computer by accelerating Windows boot-up times
(iv) Streamlines the registry system
(v) Makes system backups in case of accidental deletion of essential registry files
(vi) Prevents system crashes and maximizes the stability of the operating system.
[PICK ANY ONE]
(i) Allows for the management of files and folders on the computer
(ii) Provides a user-friendly interface for navigating and opening files
(iii) Enables the creation deletion and renaming of files and folders
(iv) Helps to organize files and folders by allowing for the creation of groups
(v) Facilitates the transfer of files and folders between different locations
(vi) Provides advanced search features to locate specific files or folders on the computer.
5. a) Definitions:
i) Computer Ethics: Computer ethics refers to the moral principles and guidelines that govern the behavior of individuals and organizations in the use of computers and technology. It involves making ethical decisions and addressing ethical dilemmas related to technology and its impact on society.
1) Security Risks: The internet is susceptible to various security threats such as hacking, malware, phishing, and identity theft.
2) Privacy Concerns: The vast amount of personal information shared online raises privacy concerns, as data can be collected, tracked, and exploited without user consent.
b) Difference between Primary Index and Secondary Index:
The primary index is usually based on the primary key of a table and determines the physical order of the records on the storage medium. It directly corresponds to the storage location of records.
A secondary index, on the other hand, is an additional index that provides an alternate path to access data. It’s created based on a non-primary key column and doesn’t determine the physical order of records. It allows for efficient access to specific subsets of data.
6. a) Definitions:
i) Normal Form: In the context of databases, a normal form refers to a specific level of data organization that ensures data integrity and reduces redundancy. It’s a set of rules that define how data should be structured to minimize duplication and anomalies in a relational database.
1) Adobe Photoshop
3) GIMP (GNU Image Manipulation Program)
b) Uses of ICT (Information and Communication Technology) in everyday life:
1) Communication: ICT enables instant communication through tools like smartphones, social media, email, and messaging apps, allowing people to stay connected regardless of their location.
2) Information Access: ICT provides access to a vast amount of information and knowledge through the internet, enabling learning, research, and staying informed about current events.
c) Differences between file and folder:
1) Nature: A file is a digital container that holds data, such as documents, images, or programs. A folder is a virtual container that holds multiple files and other folders, organizing them into a hierarchical structure.
2) Function: Files store specific types of data or information, while folders are used to group and organize related files in a systematic manner for easier management and retrieval.
2. (a) Primary Key: A primary key is a unique identifier for a record in a database table. It ensures that each row in the table has a distinct identity and is used to establish relationships between different tables within a database.
i) Internet Service Provider (ISP): An Internet Service Provider is a company or organization that offers access to the internet to individuals and businesses. ISPs provide services such as internet connectivity, email, web hosting, and related services.
ii) Network Administrator: A network administrator is an individual responsible for managing and maintaining an organization’s computer networks. This includes tasks such as setting up and configuring network devices, ensuring network security, troubleshooting network issues, and managing user access.
(c) Functions of keyboard combinations in MS-Word:
i) Ctrl + A: Selects all the text in the current document, allowing you to quickly highlight and manipulate all the content.
ii) Alt + Shift + Tab: Switches between open applications or documents in reverse order, allowing you to cycle through your active windows.
iii) Alt + F4: Closes the active window or application. If used within MS-Word, it would close the current document.
iv) Shift + E: This specific keyboard combination does not have a standard function in MS-Word. It’s possible that it could be a custom keyboard shortcut set by the user or a third-party application.
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