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WAEC 2024 DATA PROCESSING ANSWERS (1a) (i)Access to vast amounts of information for research and learning. (ii)Facilitation of communication and collaboration among students and teachers. (iii)Provision of online resources and tools for interactive learning experiences. (iv)Flexibility in learning schedules and access to online courses and materials. (1b) (i) Corrective maintenance involves fixing errors or defects in software or hardware after they have been detected. (ii) Adaptive maintenance refers to making changes to software or hardware to keep it usable in a changing environment or with new requirements. (iii) Preventive maintenance aims to prevent issues by regularly updating, monitoring, and maintaining software or hardware to avoid potential failures. (2ai) File organization is the way data is stored and arranged in a file system to facilitate efficient retrieval and storage of information. (2aii) - Sequential File Organization: II. Records are inserted one after the other. - Direct (Random) File Organization: IV. It generates random key to identify location. - Indexed File Organization: I. It does not support the use of tapes. - Hashed File Organization: III. It does not generate random keys to identify location.

Anima husbandry

DATA PROCESSING ANSWERS (1a) (i) Access to vast information resources. (ii) Facilitation of distance learning. (iii) Collaboration opportunities among students and educators. (iv) Enhanced interactive learning experiences. (1b) (i) Corrective maintenance addresses problems identified through testing or user feedback. (ii) Adaptive maintenance modifies software to accommodate changes in the environment. (iii) Preventive maintenance proactively addresses potential issues to prevent failures.

DATA PROCESSING QUESTION PAPERS

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*2024 WAEC FISHERIES* *NUMBER 6* (6a) (i) Float: Keeps the top of the net buoyant, preventing it from sinking. (ii) Sinker: Helps the net sink to the desired depth underwater. (iii) Netting: Forms the main body of the net, capturing fish as they swim into it. (iv) Float rope: Attaches the floats to the top of the net, aiding in keeping it afloat and visible. (v) Head rope: Secures the top of the net and provides stability during deployment and retrieval. (6b) (i) Trawler (ii) Longliner (iii) Purse seiner (iv) Gillnetter (v) Drift netter (6c) Making a fish pond involves several steps. Firstly, select a suitable site with access to water and good drainage. Excavate the area to the desired shape and depth, ensuring proper water circulation. Line the pond with a waterproof material like clay or synthetic liners to prevent water seepage. Fill the pond with water and stock it with fish species suited to the environment. Lastly, manage the pond by monitoring water quality, feeding the fish, and controlling pests and predators. (6d) (ii) Aeration systems: Such as aerators or air diffusers to maintain oxygen levels in the water. (ii) Pond liners: To prevent water seepage and maintain water levels. (iii) Fish feed: Pellets or formulated feed to provide proper nutrition to the fish. (iv) Nets and traps: For harvesting fish or controlling unwanted species within the pond.

FISHERY. (1a) (i) Fishing Gear: Tools for fishing like rods, nets, and lures. (ii) Fishing Craft: Boats used for fishing activities. (1b) (i) Partial Harvesting: This involves selectively harvesting mature fish from the pond while leaving some behind to continue growing. It allows for continuous production over time. (ii) Complete Harvesting: In this method, all the fish in the pond are harvested at once. After harvesting, the pond is usually drained, cleaned, and restocked with new fish. (1c) (i) Select Broodstock: Pick healthy, mature fish. (ii) Administer Hormones: Stimulate spawning. (iii) Collect Eggs and Sperm: From selected fish. (iv) Fertilize Eggs: Combine eggs and sperm. (v) Incubate: Hatch eggs in controlled conditions. (vi) Manage Hatchery: Care for larvae until mature. (1d) (i) Appearance: Males and females look different. (ii) Reproductive Organs: Females have ovaries, males have testes. (iii) Secondary Traits: Males may have distinct markings or features during breeding.

ANIMAL HUSBANDRY (6ai) physiological status: Physiological status of farm animals, such as whether they are pregnant, lactating, growing, or in maintenance, significantly influences their nutrient requirements. (6aii) Age: Age directly impacts the nutrient requirements and digestive capacity of farm animals. Young animals have higher nutrient needs for growth and development compared to mature animals (6aiii) Nutrient composition of feedstuff: Formulating feeds based on the nutrient composition of feedstuff ensures that animals receive balanced diets that meet their specific nutrient requirements. (6b) (PICK ANY FIVE) (i)process of slaughtering (ii) undergoes dressing (iii)Cutting and Boning (iv)transforming raw meat into value-added products (v)Packaging using appropriate materials (vi)Storage and Distribution (6c) (i)selection: selection refers to the process of choosing animals with desirable traits for breeding purposes, with the goal of improving the overall genetic quality of the herd or flock. (ii)Pasture: Pasture is an area of land covered with grasses, legumes, or other forage crops that is utilized for grazing by livestock. (iii)Artificial Insemination: Artificial insemination (AI) is a reproductive technology used in animal production to breed livestock without natural mating (6d) (PICK ANY THREE) (i)meat (ii)Pelts (iii)Manure (iv)Pets

Fisheries

(6a) 1. Open the document in MS Word. 2. Click on the "Layout" tab in the top menu. 3. Click on "Orientation" and select "Landscape" from the dropdown menu. 4. Next, click on the "Size" option in the "Layout" tab. 5. Select "A4" from the list of paper sizes. 6. Once the orientation and paper size are set, go to the "File" tab in the top menu. 7. Click on "Print" to open the print settings. 8. Ensure that the correct printer is selected. 9. Adjust any additional print settings as needed (e.g., number of copies, color vs. grayscale). 10. Finally, click on the "Print" button to print the document in landscape orientation on A4 paper. (6bi) "Freeze Panes". (6bii) 1. Select the cell below the row you want to keep visible while scrolling. 2. Go to the "View" tab on the Excel ribbon. 3. Click on "Freeze Panes" in the "Window" group. 4. Select "Freeze Top Row" to keep the top row visible, or "Freeze First Column" to keep the leftmost column visible, or "Freeze Panes" to keep both the top row and the leftmost column visible. (6biii) (i) Using the "Split" feature to view two different parts of the worksheet at the same time. (ii)Opening a new window for the same Excel file to compare the student records side by side. (6biv) 1. For using the "Split" feature: - Go to the "View" tab on the Excel ribbon. - Click on "Split" in the "Window" group to split the window into different panes. - Adjust the split bars to view different parts of the worksheet. 2. For opening a new window: - Go to the "View" tab on the Excel ribbon. - Click on "New Window" in the "Window" group to open a new window for the same Excel file. - Arrange the windows side by side for comparison. (6c) (i)Projector: To project the laptop or computer screen onto a large screen or wall for the audience to see. (ii)Screen or Display: To provide a surface for the projected content to be displayed clearly to the audience.

ANIMAL HUSBANDRY (3a) (i)breed: Breed refers to a specific group of animals that share common characteristics and traits, such as appearance, behavior, and genetic makeup, that distinguish them from other groups within the same species. (ii)genotype: genotype refers to the genetic makeup of an individual animal, comprising the specific combination of alleles (alternative forms of genes) it inherits from its parents. (iii) Hybrid: hybrid refers to an individual resulting from the crossbreeding of two different breeds or species within the same genus. (3b) (PICK ANY FOUR) (i)Loss of Genetic Diversity (ii)Increased Expression of Undesirable Traits (iii)Decreased Fitness and Vigor (iv)Inbreeding Depression (v)Loss of Adaptability (vi)Reduced Production Efficiency (3c) (i)Plant Protein Sources: (Pick Any Two) (i)Soybean meal (ii)Cottonseed meal (iii)Canola meal (iv)Pea protein (ii)Animal Protein Sources: (Pick Any Two) (i)Fish meal (ii)Meat meal (rendered from various animal tissues) (iii)Blood meal (iv)Feather meal (iii)Fiber Sources: (Pick Any Two) (i)Alfalfa hay (ii)Timothy hay (iii)Corn stalks (ivWheat straw (3d) (Pick Any Four) (i)Limited Access to Technology (ii)High Cost of Implementation (iii)Limited Extension Services (iv)Cultural and Religious Beliefs (v)Lack of Awareness and Education (vi)Preference for Natural Breeding

ANIMAL HUSBANDRY (3a) (i)breed: Breed refers to a specific group of animals that share common characteristics and traits, such as appearance, behavior, and genetic makeup, that distinguish them from other groups within the same species. (ii)genotype: genotype refers to the genetic makeup of an individual animal, comprising the specific combination of alleles (alternative forms of genes) it inherits from its parents. (iii) Hybrid: hybrid refers to an individual resulting from the crossbreeding of two different breeds or species within the same genus. (3b) (PICK ANY FOUR) (i)Loss of Genetic Diversity (ii)Increased Expression of Undesirable Traits (iii)Decreased Fitness and Vigor (iv)Inbreeding Depression (v)Loss of Adaptability (vi)Reduced Production Efficiency (3c) (i)Plant Protein Sources: (Pick Any Two) (i)Soybean meal (ii)Cottonseed meal (iii)Canola meal (iv)Pea protein (ii)Animal Protein Sources: (Pick Any Two) (i)Fish meal (ii)Meat meal (rendered from various animal tissues) (iii)Blood meal (iv)Feather meal (iii)Fiber Sources: (Pick Any Two) (i)Alfalfa hay (ii)Timothy hay (iii)Corn stalks (ivWheat straw (3d) (Pick Any Four) (i)Limited Access to Technology (ii)High Cost of Implementation (iii)Limited Extension Services (iv)Cultural and Religious Beliefs (v)Lack of Awareness and Education (vi)Preference for Natural Breeding

WAEC ANIMAL HUSBANDRY (1a) (PICK ANY FOUR) (i) Cattle are ruminants with a complex four-chambered stomach (rumen, reticulum, omasum, abomasum), while poultry have a single-chambered stomach. (ii) Cattle chew their cud and have the ability to ferment fibrous plant materials in the rumen, while poultry lack this capability. (iii) Cattle have a longer digestive tract compared to poultry, allowing for more efficient digestion of roughage and cellulose. (iv) Poultry have a crop and a gizzard, which help grind and store food, while cattle do not have these structures. (v) Cattle rely more on microbial fermentation in the rumen for nutrient absorption, while poultry have a shorter and more simple digestive system. (vi) The digestive enzymes and pH levels differ between the two species, with cattle being better adapted to digest fibrous plant materials. (1b) (PICK ANY FOUR) (i) Regularly administering effective anthelmintic (dewormers) to eliminate worms. (ii) Rotating grazing areas, avoiding overstocking, and properly managing manure to break the worm lifecycle. (iii) Maintaining clean housing, feeders, and waterers to reduce worm transmission. (iv) Providing a balanced diet and appropriate nutritional supplements to support the animal's immune response. (v) Introducing natural predators of worms, such as certain nematophagous fungi, to reduce worm populations. (vi) Selecting animals with genetic resistance or tolerance to worm infections to gradually improve the herd's or flock's resilience. (1c) (PICK ANY THREE) (i) Crossbreeding: Introducing genetic material from high-performing exotic breeds to improve the productivity and adaptability of local breeds. (ii) Selective breeding: Identifying and selectively breeding the most desirable traits within the local breed population to enhance desirable characteristics. (iii) Genomic selection: Utilizing genetic markers and genomic information to guide selective breeding programs and accelerate genetic progress. (iv)Improving management practices: Optimizing feeding, housing, healthcare, and other management factors to support the expression of the local breed's genetic potential. (1d) (i) CREEP FEEDING (PICK ANY THREE) (i) Increased growth rate and weight gain in young animals (ii) Improved feed conversion efficiency (iii) Enhanced immune function and disease resistance (iv) Earlier weaning and transition to solid feed (ii) DEHORNING (PICK ANY THREE) (i) Reduces the risk of injuries to animals and handlers (ii) Prevents damage to housing, equipment, and other animals (iii) Facilitates easier handling and management of the animals (iv) Helps maintain a more uniform herd or flock appearance

ANIMAL HUSBANDRY. (2a) (i) Improved animal health and welfare. (ii) Better control of environmental factors like temperature and humidity. (iii) Reduced risk of disease transmission. (iv) Increased productivity and growth rates. (v) Enhanced reproductive performance. (vi) Minimized stress levels leading to higher quality products. (2b) (i) Preventing aggression and injury among different age groups. (ii) Avoiding competition for resources such as food and water. (iii) Minimizing the spread of diseases between age groups. (iv) Tailoring feeding and management practices to specific age-related needs. (2c) (i) Cleaning and disinfecting the entire facility. (ii) Checking and calibrating heating equipment to maintain appropriate temperature levels. (iii) Providing clean bedding material. (iv) Ensuring adequate ventilation. (v) Setting up feeders and drinkers with fresh water and appropriate chick feed. (2d) (i) Pelt: Sheep (ii) Bristle: Pig (iii) Mohair: Angora goat (iv) Veal: Calf (young cattle) (v) Lard: Pig

WAEC 2024 DATA PROCESSING ANSWERS (1a) (i)Access to vast amounts of information for research and learning. (ii)Facilitation of communication and collaboration among students and teachers. (iii)Provision of online resources and tools for interactive learning experiences. (iv)Flexibility in learning schedules and access to online courses and materials. (1b) (i) Corrective maintenance involves fixing errors or defects in software or hardware after they have been detected. (ii) Adaptive maintenance refers to making changes to software or hardware to keep it usable in a changing environment or with new requirements. (iii) Preventive maintenance aims to prevent issues by regularly updating, monitoring, and maintaining software or hardware to avoid potential failures. (2ai) File organization is the way data is stored and arranged in a file system to facilitate efficient retrieval and storage of information. (2aii) - Sequential File Organization: II. Records are inserted one after the other. - Direct (Random) File Organization: IV. It generates random key to identify location. - Indexed File Organization: I. It does not support the use of tapes. - Hashed File Organization: III. It does not generate random keys to identify location.