WAEC 2019 DATA PROCESSING VERIFIED ANSWERS
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Data Processing -Obj
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Teleconferencing is the use of telecommunication devices to hold discussions between participants in different locations.
(i) For cash withdrawals
(ii) For deposits
(iii) For transfer of funds
Modem transmits digital data over communication lines. The conversion of the signals to/from analog to digital is the main purpose of a modem.
(i) Electronic Mails
(ii) Telephone messages
(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
(ii) Network Router
(iii) Network Hub
(iv) Network Switch
(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
Entities: are usually recognizable concepts, either concrete or abstract, such as person, places, things, or events which have relevance to the database
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.
Relationships is a common type of database whose data is stored in tables.
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.
i)micro soft word
i)he must have internet access
ii)he must have correct receipants email address
i)Not connected to the internet
iii)the size of the attachment may be too big
ii)mozila fire fox
i)type the first word or sentence
ii)highlight the first character
iii)click on drop cap from insert menu
a)click enter after the second paragraph
b)click on colums from page layout on menu bar
c)click on two colums from more colums option
d)mark on line between box select from this point forward on apply to box click ok
i)launch the coreldraw application
ii)click on ellipse tool or F+ on Keybord and drag
i)on the coreldraw enviroment
ii)click on text tool and click on the place to add the caption
iii)type “Happy Birthday” from the keyboard
i)highlight the caption
ii)click on fill tool
iii)select red colour from fill colour dialog box
i)highlight the caption and click on text on the menu bar
ii)click on text to path
iii)click on the circular object with the arrow
It switch on the CPU
aiv) Carefully store in a coOK dry place
P – It display video and graphical information generated by the computer graphics adaptor, allowing the use to interact with the computer
Q – It carries out the instructions of a computer program
R – It is to position a cursor on a computer screen
S – It is used to input characters and functions into the computer
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
Click on your works pace while still holding down your mouse button drag to draw your shape and release button when done
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