CS504 Quiz No.4 Shared by Hunza Anam

Question # 1 of 10 ( Start time: 10:15:20 PM ) Total Marks: 1
80/20 rule states that:
Select correct option:
you spend 80 percent of your time in 20 percent of the code        ok
you spend 20 percent of your time in 80 percent of the code
We should try to optimized 80 percent or at least 20 percent of the code
None of the given options.


Question # 2 of 10 ( Start time: 10:15:36 PM ) Total Marks: 1
It ensures that a class only has one instance and provides a global point of access to it.
Select correct option:
Singleton Pattern        ok
Observer Pattern
Real Pattern
None of the given


Question # 3 of 10 ( Start time: 10:16:20 PM ) Total Marks: 1
-----provides a unified interface to a set of interfaces in a sub-system.
Select correct option:
Observer Pattern
Singleton Pattern
Façade Pattern        ok
All of the above


Question # 4 of 10 ( Start time: 10:16:44 PM ) Total Marks: 1
Names representing methods and functions should be----and written in mixed case starting with -----case.
Select correct option:
Noun—lower
Verb----lower        ok
Noun ---upper
Noun----upper


Question # 5 of 10 ( Start time: 10:16:58 PM ) Total Marks: 1
Anti-patterns is another concept that corresponds to common ------------- in analysis and design.
Select correct option:
mistakes        ok
issues
problems
All of the given


Question # 6 of 10 ( Start time: 10:17:47 PM ) Total Marks: 1
x = 0; // x is floating pt Which rewritten form of above line of code is more in line with the self-documentation philosophy than the code above.
Select correct option:
x = false
x = NULL
x = 0.0;        ok
x = ‘\0’


Question # 7 of 10 ( Start time: 10:18:09 PM ) Total Marks: 1
A self documenting code is a code that explains itself without the need of comments and extraneous documentation, like _______
Select correct option:
Flowcharts
UML diagrams
Process-flow state diagrams
All of the given choices        ok


Question # 8 of 10 ( Start time: 10:18:37 PM ) Total Marks: 1
Identifier names also play a significant role in enhancing the -------- of a program.
Select correct option:
Writ ability
Readability        ok
Reliability
All of the given choices



Question # 9 of 10 ( Start time: 10:19:13 PM ) Total Marks: 1
"is" prefix should be used for------ variables and methods.
Select correct option:
General
Boolean        ok
Constant
None of the given


Question # 10 of 10 ( Start time: 10:19:28 PM ) Total Marks: 1
which of the following statements are same in output: 1) a = a >> 2 2) a = a / 4 3) a = a * 2
Select correct option:
(1) and (3) only
(2) and (3) only
(1) and (2) only        ok
All procduce the same result