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Published on: 13/05/2022
QB365 provides detailed and simple solution for every book back questions in class 12 Computer Science subject.It will helps to get more idea about question pattern in every book back questions with solution.
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Take MCQ Computer Science Test
3 Marks
1.
Differentiate Concrete data type and abstract datatype.
2.
Which strategy is used for program designing? Define that Strategy.
3.
Identify Which of the following are constructors and selectors?
(a) N1:=number()
(b) accetnum (n1)
(c) displaynum (n1)
(d) eval (a/b)
(e) x,y:= make slope (m), make slope (n)
(f) display()
4.
What are the different ways to access the elements of a list. Give example.
5.
Identify Which of the following are List, Tuple and class ?
(a) arr [1, 2, 34]
(b) arr (1, 2, 34)
(c) student [rno, name, mark]
(d) day= (‘sun’, ‘mon’, ‘tue’, ‘wed’)
(e) x= [2, 5, 6.5, [5, 6], 8.2]
(f) employee [eno, ename, esal, eaddress]
3 Marks
1.
| S.No | Concrete data type | Abstract data type |
| (i) | Concrete Data Types or structures (CDT's) are direct implementations of a relatively simple concept | Abstract Data Types (ADT's) offer a high level view (and use) of a concept independent of its implementation. |
| (ii) | A concrete data type is a data type whose representation is known. | Abstract data type the representation of a data type is unknown. |
2.
A powerful strategy for designing programs, 'wishful thinking'. Wishful Thinking is the formation of beliefs and making decisions according to what might be pleasing to imagine instead of by appealing to reality.
3.
(a) Constructors
(b) Selectors
(c) Selectors
(d) Selectors
(e) Constructors
(f) Selectors
4.
(i) The elements of a list can be accessed in two ways. The first way is via our familiar method of multiple assignment, which unpacks a list into its elements and binds each element to a different name.
lst := [10, 20]
x, y := lst
(ii) In the above example x will become l0 andy will become 20.
(iii) A second method for accessing the elements in a list is by the element selection operator. Unlike a list literal, a square brackets expression directly following another expression does not evaluate to a list value, but instead selects an element from the value of the preceding expression.
Ist [0]
10
lst [1]
20
5.
(a) List
(b) Tuple
(c) Class
(d) Tuple
(e) List
(f) Class
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Tamilnadu Stateboard 12th Standard Subjects
Maths
Chemistry
Physics
Biology
Computer Science
Business Maths and Statistics
Economics
Commerce
Accountancy
History
Computer Applications
Biology
Computer Technology
Computer Applications
Computer Science
Business Maths and Statistics
Commerce
Economics
Maths
Chemistry
Physics
Computer Technology
History
Accountancy
Tamil
English
French
Tamilnadu Stateboard Standards
