Data Processing Objective 


1-10: DCBABDBBDB


11-20: CACCADCCBA


21-30: BBBBAADCAC


31-40: CCDABAADBB


NO .1
A)
Teleconferencing  Is the Audio or audio-visual meeting between geographically separated parties linked by telecommunications networks such as telephones or internet.


===================


1B)
.i ) Using an ATM, customers can access their bank deposit or credit accounts in order to make a variety of financial transactions such as cash withdrawals, check balances, or credit mobile phones. 
ii) ATMs can be used to withdraw cash in a foreign country
iii) It facilitates basic bank transactions 
iv) You can buy and transfer airtime to your family member, relative or friend through ATM machine.
=====================
1C)
Modem stands for MOdulator/DEModulator. A modem converts digital signals generated by the computer into analog signals which can be transmitted over a telephone or cable line and transforms incoming analog signals into their digital equivalents.




(3a)
(i) They might have been experiencing difficulties in resource Sharing
(ii) They might have lost some crucial data, so they want to connect it for Data Protection and Redundancy
(iii) Ease of Administration
(iv) To maintain complex internal communications systems


(3b)
(i) Modem
(ii) Network Router
(iii) Network Hub
(iv) Network Switch




(3c)
(i) Modem -  It modulates and demodulates the signal between the digital data of a computer and the analog signal of a telephone line.
(ii) Network Router - This is responsible for routing traffic from one to another network. 
(iii) Network Hub - This is used to connect multiple network hosts also for data transfer.
(iv) Network Switch -  It helps in filter and forwarding of data


(4ai)
Entities: are usually recognizable concepts, either concrete or abstract, such as person, places, things, or events which have relevance to the database


(4aii)
Attribute: refers to a database component, such a table. It also may refer to a database field. In other words Attributes describe the instances in the row of a database.


(4aiii)
Relationships is  a common type of database whose data is stored in tables.


(4bi)
Cardinality refers to the uniqueness of data values contained in a column. In other words High cardinality means that the column contains a large percentage of totally unique values and  Low cardinality means that the column contains a lot of “repeats” in its data range.


(4bii)
(i)one-to-one (1:1)
(ii)one-to-many (1:M)
(iii)many-to-many (M:N)






(5ai) 
CD-ROM


(5aii)
I - CD-ROM technology 
II - It switch on the CPU 
III - Carefully store in a cool dry place. 


(5b) 
P - It displays video and graphical information generated by the computers graphics adapter allowing the user to interact with the computer. 
Q - It carries out the instructions of a computer program. 
R - It is used to position a cursor on a computer screen. 
S - It is used to input characters and functions in the computer system by pressing button or keys. 
T - It converts digital signals generated by the computer into analog signals which can be transmitted over a telephone or cable line and transforms incoming analog signals into their digital equivalent. 


(5c)
(i) Click on your workspace while still holding down your mouse button drag to draw your shape and release button when done
















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Time and Date for data processing 2019 WAEC Examination

Tuesday, 23rd April, 2019

  • Data Processing 2 (Essay)** – 9:30 a.m. – 11:30 a.m.
  • Data Processing 1 (Objective)** – 11:30 a.m. – 12:30 p.m


Recommended: 2019/2020 Waec (SSCE) April/May Official Timetable


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SEE ALSO : 2019/2020 Waec (SSCE) April/May Official Timetable

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ALSO SEE: 2018 Waec Gce Physical and Practical Geography Questions and Answers | Waec Gce Expo

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