Data processing Waec2018 answers

Waec 2018 Data processing answers theory & Obj 

By Engr Okey
+2348144125865 DATA PROCESSING OBJ:
1-10: ACDBCCDCCA
11-20: CBABCCDADA
21-30: DBBBBACDAD
31-40: ADADACCADA


(1ai)
Data model is the process of structuring and organizing
data in additions. Data model can also be defined as a
description of the organization of data in a database

(1aii)
(i) flat file model
(ii) hierarchical model
(iii) network model

(1bi)
(i) conceptual Data model
(ii) logical Data model
(iii) physical Data model.

(1bii)
Conceptual Data model: this describes what the system
contains. It provides concepts that are close to the way
many users perceive data (it is also called entity-based or
object - based data model).



(2a)
(i) Microsoft word
(ii) Watermark
(iii) By saving the documents to a secured storage device

(2bi)
An icon is a pictogram displayed on a computer desktop
background to help user navigate quickly to a stored
program or file in computer system.

(2bii)
A browser is a software application that is used to access
and view web pages in the internet


(3a)
Ctrl+P
Select "pages"
Type " 1, 2, 3, 4, 5" in the pages field
Select the desired printer
Click ok

(3bi) A pop-up is a graphical user (GUI) display area. The
pop-up window containing an advertisement is usually
generated by JavaScript that uses cross-site scripting
(XSS), sometimes with a secondary payload that uses
Adobe Flash. They can also be generated by other
vulnerabilities/ security holes in browser security.

(3bii) Pop-up ads or pop-ups are forms of online
advertising on the World Wide Web.

(3biii) Open Internet Explorer. Click the tools button (it is in
the top
righthand corner and looks like a cog, then select internet
options.
Go to the Privacy tab, and under Pop-up Blocker, select
the Turn on Pop -up Blocker check box, and then tap or
click ok.

(3c)
(i) Microsoft power point
(ii) Projector

(3d)
(i) Ethernet
(ii) Token ring



(5ai)
I. APPLICATION:
(i) Microsoft word
(ii) web browser

II. HARDWARES:
(i) Printer
(ii) Computer system

(5aii)
(i) He must have internet access
(ii) He must have correct recipient email address

(5aiii)
(i) Not connected to the internet
(ii) Slow network
(iii) The size of the attachment maybe too big

(5aiv)
Printer

(5bi)
Web browser

(5bii)
(i) Mozilla Firefox
(ii) Google Chrome
(iii) Internet Explorer