Kerala Plus One Answer Key 2025 Computer Application Humanities

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ANSWER KEY

FIRST YEAR HIGHER SECONDARY EXAMINATION MARCH 2025

PART IlI

SUBJECT: COMPUTER APPLICATION (HUM)

CODE NO:FY345 SCORE:G0 MARKS T!ME:2 HOURS

Qn Total
No Answer Key/Value points Score Score
t a(iandiii) L 1

2 Left t 1

3 chl+o L 1

4 Optical fibre L L

5 Facebook t L

5 e-business 1 !
7 ASCII, EBCDIC, Unicode, ISCII 1+1 2

Any two names of above codes
8 Controls, manages and co-ordinates all otherunits of a computer 1+1 2

Any two points
9 Ram- Random access memory, Fasterthan Rom, allows reading and 1+1 2

writing. Volatile memory, lt stores data temporally
Rom- Read only memory,Slower than RAM , allows reading only

Non-volatile memory,lt stores boot up program ( Any 2 differences )

10 Locking rows in a spread sheet 2 2

OR Window ->Freeze OR making rows immovable

TL Round a number up to a given number of digits / syntax/eg 1+1 2
Round down to given number of digits/ syntax/eg

L2 lnsert-> Movie and Sound 0R 2 2

Clicking audio button in a slide show
13 Normal view or slide view, Outline view, Slide sorter view, Hangout 1+1 2

view, Notes view

t4 Raster images vector images
made up of pixels created mathernatica ly I

Quality of images dbes not loses quatity when scaled 1+1 2

decreases as they are scaled

large files smaller in images

used in web and print converted to raster images before

they are used

(Aty 2 comparisons )
15 Rectangle Select, Ellipse Select, Free Select/Lasso tool , Yz SC;Ore 2

Foreground Select ,Ftzzy Select, By Colour Select, Intelligent each

Scissors (Narne ffiy 4 selection tools)

16 Move the mouse pointer on the anchor point. Hold down Ctrl + 2 2

Shift keys down and click on the anchor point
OR Ctrl + Shift + Mouse Click
L7 This is adatacommunication device. It receives incoming data 2 2

signals, amplifies the signals to their original strength and
retransmits them to the destination.

OR Amplifu signals in a network
18 A computer with NIC and an operating system that supports TCP/ l+1 2

IP, modem, telephone line, An Intemet account glven by an
lnternet Service Provider (ISP),mobile hotspot
(Any software/hardware components for internet connection)
19 Store data and instructions, intermediate results and final results. l+1+1 3

Primary memory-RAM,ROM, secondary memory-CD,DVD(Any
3 points related to primary, secondary mernory)

20 e-waste refers to electronic products nearing the end of their I 3

useful life
reuse, recycle, incineration,land filling(Y, score each) 2

W
2L Input-joystick, light pm, QR code reader Yz scote 3

output-CRT monitor, LCD Projector, Laser print each

22 Using a cell address to identifu a cell is called cell referencing I 3

Relative cell references are basic cell references that adjust and 1+l
change when copied. Absolute referencing-does not automatically

adjust when formula is copied. To make a reference absolute, puts
a Dollar($) sign before both the column letter and row number

OR:B4+C4, $A$3 OR names only
Explain two refetrence 3

23 AVERAGE0 ->calculate average of given set of values Yz score 3

MAXQ ->Give the maximum values in a list of numbers each
UPPERQ ->Convert'\velcome" to "WELCOME"
MAXQ ->Gives themaximum values in a list of numbers
ANDQ ->Returns true if all the conditions are true otherwise
refurns false
LOWER0 ->Convert "WELCOME" to'lvelc,ome"
24 Setting time between two slides in a presentation l+2 3

Slide Show-> Rehearse Timing
25 l. Align 2. Move 3. Crop 4. Rotate 5. Scale 6. Shear 7. Flip Yz scOre 3

Name any six transform tools each
26 Subtractive Colour Scheme Additive Colour Schsme Yz score 3

Used in colour printing Used in computer and each
Television screens
Mixing begins with white Mixing begins with black
and ends with black and ends with white

Use Cyan, Magenta and Yellow Use Red, Green and Blue
Colour components to create colour components to create
colours colours
Absence of colours is white Absence of colours is black
Presence of all the colours Presence of all the colours

is black is white(Any three comparisons)
27 a. Emboss b. Mosaic c. Ripple d. Shift e. Waves f. Wind 1+1+1 3

Explain any three distorts filters /z score
Names only each
28 Bring people together , Plan and organize events , Business 1+l+l 3

promotion, Social skills (Any 3 advantages )
OR intrusion to privacy Addiction, Spread nrmours ( any 3
limitations) OR Any 3 advantages and limitations
29 Speed, Saves time and money, Transparency, Reduce comrption, 1+l+1 3

Strengthens the democracy( Any 3 benefits)

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OR Loss of interpersonal communications, High sefup cost, Lower
e-Literacy, Leakage of personal information, Cyber-attack (Any 3
challenges) OR Any 3 benefits and Challenges
30 (a) Software is a set of programs to perform a desired and useful 2 5

work by a computer. There are two types of software- system
software and application software
(b Operating system -> Linux, DOS /z scote
Utility software -> WinRAR, WinZip each

Application program -> Spread sheet, Presentation software
31 (a ) Charts are graphical representation of numeric data I 5

( b ) i)Select data range ii) Insert-> Chart iii)Select Chart tlpe 2

iv) set data range, chart eleme,nts etc
OR i)Select data range ii) Insert-> Chart
( c ) Chart Area, Chart Title, X- Axis Title, Y- Axis Title,
X-Axis Category, Y- Axis value ,Datalabels, Legends Yz scote

(Narne arry 4 elements) each

32 Network Interface Card, Hub, Switch, Repeater, Bridge, Router, 5 5

Gateway.(Any 5 devices with single line explanation) OR /z score
Names only each

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