2017 REAL AND VERIFIED NECO DATA PROCESSING ANSWERS

2017/2018 NECO EXPO QUESTION & ANSWERS

2017 REAL AND VERIFIED NECO DATA PROCESSING ANSWERS

DATA PROCESSING:
1-10: DEEBDCCCAA
11-20: BBBAAADEAB
21-30: EDCDADBAEA
31-40: ABCBDADBDB
41-50: DBBEEBDCBA
51-60: AADBCACCDB.

DATA PROCESSING
(3ai)
Relational database is a digital
database whose organization is based
on the relational model of data, as
proposed by E. F. Codd in 1970.
(3aii)
-Tables
-forms
-queries
(3aiii)
A program file refers to sets of
instructions that are put together to
build up the application you will be
using. Several files are linked
between each other to see the
application that pops in your screen.
A data file is basically the
application’s feeding as it provides
what is needed for your program to
work and convert single pieces of data
on understandable information.
(3bi)
Two way, real-time transmission of
audio and video signals between
specialized devices or computers at
two or more locations via satellite
(wireless) over a network such as a
LAN or
internet.
(3bii)
1. No time constraint:
2. Dramatic travel saving:
3. Easy communication:
4. Increased productivity:
(3ci)
(i) Reduced updating errors and
increased consistency
(ii) Greater data integrity and
independence from applications
programs
(3cii)
(i) Write a problem statement for
what you want to do
(ii) Write an outline, if it is complex
(5)
-Systematic gathering
-Recording
-Analyzing of data
-Collection of data
-Decision making
-Systematic gathering: Is d collection
of data frm various sources to gather
common knowledge of the people/
customers
-Recording: Is the documentation of
the data and
-Analyzing of data is when the
idea,knowledge dat are collected frm
random people are worked on by the
research agents
-Collection of data: Is when the
research agent use various methods to
bring various ideas together from
several customers
-Decision making: Is when the data
are collected and analysed & are
considered for usage
(6a)
(i) Devices with high Processor is
faster in accessing of data
(ii) When the memory size of the
device is high, it quicks data access.
(iii) When the Content of the device is
high, it slows down access of data
(iv) Virus-free device can access data
quicly
(6b )
(iii) Homepage: This is the main page
of a website which gives detailed
information on its owner and
provides links to its other parts.
Usually it is d first page seen by every
visitor, but some sites (such as those
of newspapers or portals) display a
fresh page everyday, custom-tailored
to the individual visitor’s preferences.
(iv) ISP: ISP simply means Internet
Service Provider. It is a company that
provides you with access to the
Internet, usually for a fee. The most
common ways to connect to an ISP
are by using a phone line (dial-up) or
broadband connection (cable or DSL).
(9a)
-He decides the demand of the product
at that time
-He helps to make arrangement for
storage facilities
-He helps to fix the price for the price
for the agricultural product
-He helps to look at the quality and
quantity of agricultural product to be
marketed
-He helps to grade the agricultural
product
(9b)
-Facilitator helps to decide where
there is the demand for the processed
food
-He also helps in fixing the good price
for the product
-He decides on how to store the
product in the case of excess
-He will decide the quality of the
product
-He helps in grading of the product
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