COMPLETE 2019 WAEC DATA PROCESSING
: Waec 2019 Data Processing Obj & Essay Answer
Engr Naser daher 09030302775- 23rd, April 2019 ==> Waec 2019 Data Processing Obj & Essay Answers ===================================
Engr Naser daher 09030302775WAEC DATA PROCESSING OBJ LOADING.......
Engr Naser daher 09030302775==== ===== ===== ===== THEORY ANSWERS
Engr Naser daher 090303027751a) Teleconferencing is the use of telecommunication devices to hold discussions between participants in different locations.
Engr Naser daher 090303027751b) (i) For cash withdrawals (ii) For deposits (iii) For transfer of funds
Engr Naser daher 090303027751ci) Modem transmits digital data over communication lines. The conversion of the signals to/from analog to digital is the main purpose of a modem.
Engr Naser daher 09030302775(1cii) (i) Electronic Mails (ii) Telephone messages
Engr Naser daher 09030302775(3a) (i) They might have been experiencing difficulties in resource Sharing
Engr Naser daher 09030302775(ii) They might have lost some crucial data, so they want to connect it for Data Protection and Redundancy
Engr Naser daher 09030302775(iii) Ease of Administration (iv) To maintain complex internal communications systems
Engr Naser daher 09030302775
Engr Naser daher 09030302775(3b) (i) Modem (ii) Network Router (iii) Network Hub (iv) Network Switch
Engr Naser daher 09030302775(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 =======================================
Engr Naser daher 09030302775(4ai) Entities: are usually recognizable concepts, either concrete or abstract, such as person, places, things, or events which have relevance to the database
Engr Naser daher 09030302775(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.
Engr Naser daher 09030302775(4aiii) Relationships is a common type of database whose data is stored in tables.
Engr Naser daher 09030302775(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.
Engr Naser daher 09030302775(4bii) (i)one-to-one (1:1) (ii)one-to-many (1:M) (iii)many-to-many (M:N) =
Engr Naser daher 09030302775=================================== (5ai) CD-ROM
Engr Naser daher 09030302775(5aii) I - CD-ROM technology II - It switch on the CPU III - Carefully store in a cool dry place.
Engr Naser daher 09030302775(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.
Engr Naser daher 09030302775R - It is used to position a cursor on a computer screen.
Engr Naser daher 09030302775S - It is used to input characters and functions in the computer system by pressing button or keys.
Engr Naser daher 09030302775T - 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. (
Engr Naser daher 090303027755c) (i) Click on your workspace while still holding down your mouse button drag to draw your shape and release button when done =====================================
Engr Naser daher 090303027756ai) drop cap 6aii) i)type the first word or sentence ii)highlight the first character iii)click on drop cap from insert menu
Engr Naser daher 090303027756aiii) 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
Engr Naser daher 09030302775b) i)shapes ii)clip air
Engr Naser daher 090303027756ci) i)launch the coreldraw application ii)click on ellipse tool or F+ on Keybord and drag
Engr Naser daher 090303027756cii) 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
Engr Naser daher 090303027756ciii) i)highlight the caption ii)click on fill tool iii)select red colour from fill colour dialog box
Engr Naser daher 090303027756civ) 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
Engr Naser daher 09030302775Stay steady.........
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