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CBSE AISSCE 2018 Marking Scheme for Informatics Practices
(​Sub Code: 065 Paper Code 90​)

Ans (i) GSM - Global System for Mobile Communications/ Global System for Mobile/ Graphics
Stimulator Media
(ii) IP - Internet Protocol
(1 mark for each correct answer)
(e) Name the devices: 2
(i) ​This device constantly looks at all the data entering and exiting your connection.It
can block or reject data in response to an established rule.
(ii) ​This device connects multiple nodes to form a network. It redirects the received
information only to the intended node(s).
Ans i) Firewall
ii) Switch
( 1 mark for each correct part)

2 (a) Identify the invalid variable names. State the reason if invalid. 1
(i) Marks Unit
(ii) Product_1
(iii) Sales123
(iv) 2Marks
Ans Invalid variable names are :
(i) Marks Unit
Reason : Variable Name should not contain space
(iv) 2Marks
Reason : Variable Name should not start with digit
(1 mark for identifying any one invalid variable name and stating the reason)
Note: Full 1 mark to be awarded if both invalid variable names are identified but
reasons are not given)
(b) Write the data type of variables that should be used to store: 1
(i) Marks of students
(ii) Grades of students(Grade can be ‘A’ or ‘B’ or ‘C’)
Ans (i)​ ​float/double /int / byte / short / long
(ii) ​char
( ½ mark for each part)
Note : Valid data types of MySQL(integer/int/decimal/char/varchar) should also be
accepted.
(c) Write examples of any two properties and any two methods of jButton component 2
Ans Properties of JButton component :
Background,font,label,text,name,editable,enabled,
horizontalalignment,border
Methods of JButton component :
setText(),getText(),setEnabled(),setVisible(), setEditable(),
setVisible(), isSelected(), setSelected()
(½ mark each for mentioning any two valid properties)
(½ mark each for mentioning any two valid methods)
(d) Write the purpose of HTML. Distinguish between <P> and <BR> tag. 2

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