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CBSE AISSCE 2017-2018 Marking Scheme for Computer Science
(2018-2019 Sub Code: 083 Paper Code: 91)

fstream SFIN;
SFIN.open("SCHOOLS.DAT",ios::binary|ios::in);
SCHOOLS S;
SFIN.seekg(5*sizeof(S));
SFIN.read((char*)&S, sizeof(S));
S.Display();
cout<<"Record :"<<SFIN.tellg()/sizeof(S) + 1<<endl;
SFIN.close();
}

Ans 1004#Holy Education School#140
Record :7

(½ Mark for displaying correct values of Record 6 )
(½ Mark for displaying correct value of SFIN.tellg()/sizeof(B) + 1)

SECTION B - [Only for candidates, who opted for Python]

1 (a) Differentiate between Syntax Error and Run-Time Error? Also, write a suitable 2
example in Python to illustrate both.
Ans Syntax error​: An error of language resulting from code that does not conform to
the syntax of the programming language.
Example
a = 0
while a < 10 ​# : is missing as per syntax
a = a + 1
print a
Runtime error​: A runtime error is an error that causes abnormal termination of
program during running time..
Example
A=10
B=​int(raw_input("Value:"))
print A/B
# If B entered by user is 0, it will be run-time error

( ½ mark each for defining syntax error and run-time error )
( ½ mark for each correct example)
OR
( Full 2 Marks for illustrating both through examples)

(b) Name the Python Library modules which need to be imported to invoke the 1
following functions:

(i) ​sin()​ (ii) ​search​()

Ans (i) ​math​ (ii) ​re

(½ Mark for writing each correct Library module)

Note: Ignore any other Library modules, if mentioned.

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