Encapsulation in object-oriented modelling is useful as
Detailed Answer
Correct answer: (A)
it allows improving methods of an object independent of other parts of system
2
A polymorphic operation
Detailed Answer
Correct answer: (B)
has same name but uses different methods depending on class
3
A line printer
i. prints an entire line at a time
ii. is a non-impact printer
iii. allows multiple copies to be taken at a time
iv. prints one character at a time
Detailed Answer
Correct answer: (B)
i and iii
4
A laser printer
i. gives a better quality printout compared to inkjet printer
ii. is less expensive than an inkjet printer
iii. is more expensive than a dot matrix printer
iv. gives a better quality printout compared to dot matrix printer
Detailed Answer
Correct answer: (D)
i, iii, iv
5
Outputs needed by operational managers are
Detailed Answer
Correct answer: (C)
detailed reports
6
Good report allows one to
i. read it from left to right and top to bottom
ii. read it from any point
iii. find out easily the beginning and end of the report
iv. printed it in one page
Detailed Answer
Correct answer: (B)
i and iii
7
Bar charts are used when
Detailed Answer
Correct answer: (B)
relative distribution of data in specified categories is to be shown
8
A dot matrix printer
i. prints an entire line at time
ii. is a non-impact printer
iii. allows multiple copies to be taken at a time
iv. prints one character at a time
Detailed Answer
Correct answer: (C)
iii and iv
9
An audio output unit
Detailed Answer
Correct answer: (A)
can speak out small range of digits and specified words
10
Reports headings are used as
Detailed Answer
Correct answer: (B)
it helps in reading and understanding a report