WAEC Data Processing 2023 Answers



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Data Processing 2 (Essay) – 09:30am – 11:30am
Data Processing 1 (Objective) – 11:30am – 12:30pm






(i)Fragmentation refers to the division of database objects or data itself into smaller pieces or fragments. WHILE Replication refers to the process of creating and maintaining multiple copies of data or database objects in different systems.

(ii)fragmentation focuses on dividing data or objects into smaller pieces for performance and storage optimization, while replication involves creating redundant copies of data for improved availability, fault tolerance, and performance across multiple locations or systems.

(iii)Fragments of data or objects are often interconnected and rely on each other WHILE Replicated data or objects are independent of each other

(i)Replication improves data availability by distributing copies of data across multiple systems
(ii)Replication can help improve system performance by reducing the load on individual systems.
(iii)Replication provides data durability and protection against data loss.
(iv)Replication enhances fault tolerance and system reliability
(v)Replication can facilitate load balancing and scalability in distributed systems
(vi)Replication enables offline access to data or resources.

(i)File System Fragmentation
(ii)Network Fragmentation
(iii)Memory Fragmentation

(i)Oracle Database
(ii)Microsoft SQL Server
(iv)IBM DB2



Malware refers to any software program or code that is specifically designed to disrupt, damage, or gain unauthorized access to computer systems, networks, or devices


Malware refers to malicious software programs or code that are designed to harm computer systems, networks, or devices


(i)Malware may slow system performance
(ii)It lead to excessive pop-up ads
(iii)It cause changes in browser settings
(iv)It may disabled or malfunctioning security software
(v)it lead to Frequent system crashes or instability
(vi)Increased data usage and internet connectivity issues

(i)Exercise cautious while visiting websites and downloading files.
(ii)Always Keep your operating system and software up to date
(iii)Always be vigilant when opening emails with attachments and links especially from unknown source
(iv)Enable the built-in firewall on your operating system or use a reliable third-party firewall.
(v)Create strong, complex passwords for your online accounts and avoid reusing passwords across different platforms

Disk space analyzer:
[PICK ANY ONE] (i) Helps to identify files and folders that are taking up too much space on the hard drive
(ii) Provides a graphical representation of disk usage
(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.

Backup utility:
[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.

Register cleaner:
[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.

File manager:
[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.

[PICK ANY ONE] (i) Enables the user to remove unwanted software or applications from the computer
(ii) Helps to remove traces of the uninstalled software from the system
(iii) Can remove multiple applications at once
(iv) Provides a complete list of installed programs on the computer
(v) Ensures the complete and safe removal of software including registry entries and associated files
(vi) Helps to improve system performance by freeing up disk space that had been previously occupied by the uninstalled software.

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