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Replies to This Discussion

How Many MCQz from this file???

thankssss

Answer: 

Cs 504

Which design pattern provides a unified interface to set of interfaces in sub-system?  2

Ans: Façade Pattern (Page:143)

Consider the following values and calculate cyclomatic complexity.

Number of edges=8

Number of nodes=6

Ans: M = E − N + 2

where

M = cyclomatic complexity

E = the number of edges of the graph

N = the number of nodes of the graph

So M= 8-6+2=4

3.do you agree that side effect of a function can make things difficult during maintaince or debugging activities? 2

Ans: Side effects are a major source of

programming errors and they make things difficult during maintenance or debugging

activities.(Page:174)

5. when does the split lines occure in the code?write 2 hints to avoide such situation?

Ans: Split lines occurs when a statement exceed the 80 column limit given above. It is difficult to give rigid rules for how lines should be split, but the examples above should give a general hint.

In general:

•Break after a comma.

•Break after an operator.

•Align the new line with the beginning of the expression on the                                                                                       previous line. (Page: 156)

6. name atleast 3 faults classes which are specified during prepration of checklist for static analyzers?

Ans:

Control faults

Input/Output

Faults

Interface faults

Storage

management

faults

Exception

management

faults

Fault Class(Page:210-211)

 

 

7.when we write portable codes it is said that the program should be stick to standard? what does this statement mean?

Ans: Please check handout page:179

8. black box testing and white box testing dirfference? 5

Ans:

11.8 Black box testing

In this type of testing, a component or system is treated as a black box and it is tested for

the required behavior. This type of testing is not concerned with how the inputs are

transformed into outputs. As the system’s internal implementation details are not visible

to the tester. He gives inputs using an interface that the system provides and tests the

output. If the outputs match with the expected results, system is fine otherwise a defect is

found.

11.9 Structural testing (white box)

As opposed to black box testing, in structural or white box testing we look inside the

system and evaluate what it consists of and how is it implemented. The inner of a system

consists of design, structure of code and its documentation etc. Therefore, in white box

testing we analyze these internal structures of the program and devise test cases that can

test these structures. (Page:198)

black box testing

white box testing

 

1

In this testing knowledge of programming is not necessarily essential.

In this form of testing knowledge of programming is must means it is essential.

 

2

Normally independent software testers are responsible for doing this type of testing.

Normally software developers are responsible for doing this type of testing.

 

3

In this form of testing Knowledge of implementation is not required.

In this form of testing Implementation knowledge is required.

 

4

In this testing testers may or may not be technically sound.

Normally software developers are doing the white box testing but if it is performed by software testers than testers should be technically sound.

 

5

In this sort of testing testers mainly focuses on the functionality of the system.

In this sort of testing developers mainly focuses on the structure means program/code of the system.

 

6

This testing is done by testers.

This testing is mostly done by developers.

 

7

This type of testing always focuses on what is performing/ carried out.

This type of testing always focuses on how it is performing/ carried out.

 

8

In Black Box Testing no knowledge regarding internal logic of code is needed means no need of programming is necessary.

In White Box Testing knowledge regarding internal logic of code is needed means need of programming is mandatory.

 

9

Other names of this testing include means synonyms ofblack box testing are testing regarding functionality meansFunctional testing, Behavioral testing, and Opaque-box/ Closed-box testing that is the reason why in this testing no knowledge of programming is needed.

Other names of this testing include means synonyms of white box testingare testing regarding code means Structural testing, Glass-box/ Clear-box testing, Open-box testing/ Transparent-box testing, Logic-driven testing and Path-oriented testing that is the reason why in this testing knowledge of programming is needed.

 

10

Black box testing means functional test or external test.

White box testing means structural test or interior test.

 

 

9.write the name of all OSI refrence architecture? 5

8.13 Reference architectures

Reference architecture is not a physical architecture. It is only a reference for defining

protocols and designing and implementing systems developed by different parties.

Reference models are derived from a study of the application domain rather than from

existing systems. It may be used as a basis for system implementation or to compare

different systems. It acts as a standard against which systems can be evaluated. One very

common example of such a reference model is the OSI model which is a layered model

for communication systems. The success of this kind model is evident from the success

of the Internet where all kinds of heterogeneous systems can talk to each other only

because all of them use the same reference architecture. (Page:134)

10.list any three potential points (phases) in the development life cycle where there are greater chance of defect inclusion into development?5

11.13 Defect origination

In inspections the emphasis is on early detection and fixing of defects from the program.

Following are the points in a development life cycle where defects enter into the

program.

 Requirements

 Design

 Coding

 User documentation

 Testing itself can cause defects due to bad fixes

 Change requests at the maintenance or initial usage time(Page:209)

11,what acceptable abbreviation in the following?

Cmd:command

Cp:copy

Int:initialized

Ttml:hypertext markup language

Cpu:centeral processing unit.

Ans: Ans: Please view handout page:153

 My Blog:  http://aamuhammadi.blogspot.com

Muazz file sai sirf 3 mcqs aye baki subjective mai yeh tha

What is the difference between whit box and black box?

How to avoid tab or page brake?

bus yhi yaad hai mugay

thanks umar amin

Today Mine paer of cs504: 03-03-2016

1. What is softwar3e debugging?
2. Performance engineers and tester are concerned to which view in krutchen’s 4+1 view?
3. Do you agree that side effect of a function can make things difficult maintaince?
4. In which case state branch and path coverage are same?
5. In three architecture “Interface” of an application represent which layer?
6. Mention any two guidelines which you think are necessary to write comments?
7. Black box and white box types? Any two

Todays paper 27-Feb-16

MCQs 40 % from Moaaz mcqs.

Written questions were:
1. The formula of Perry and Wolfe on Architecture Views. 2
2. The use of TAB and BREAK PAGE special cases be avoided and why. 2
3. Black and White Pattern difference. 5
4. do-while loop should avoided why? . 3
5. what are acceptable abbreviations in the following: 5
cmd:command,cp:copy,init:initialize , html:HyperTextMarkupLanguage , cpu:CentralProcessingUnit
6. Parts of Observer Patterns. 3
7. Any Three phases in development cycle that can cause defects. 5
8. What is Memory Over Run. 3
9. Is multi level commenting possible on C++ and Java? 3

Q. 01. List down any three potential points (phase) in development life cycle where there are greater chance of defect inclusion into development.
Answer:
Following are the development life cycles of defect inclusion into development:
 Requirements
 Design
 Coding

Q. 02. List down the participant of observer pattern.
Answer:
Following are the participant observer pattern:
 Subject
 Observer
 Concrete subject
 Concrete Observer

Q.03. 2 guide lines that can avoid hazards side effects.
Answer:
Never use “,” except for declaration and never use multiple assignments in the same statement.

Q. 04. Why special character like TAB and PAGE BREAK must be involved in multiple platform environment.
Answer:
Special characters like TAB and page break must be avoided. These characters are bound to cause problem for editors, printers, terminal emulators or debuggers when used in a multi-programmer, multi-platform environment

Q.05. Virtual University of Pakistan students accessing the course material, this is example of which architecture model?
Answer:
This is the Client server architecture model.

Q. 06. What is the general rule for naming user-defined data types in C++ or JAVA, Explain with the help of example?
Answer:
1. Names representing types must be nouns and written in mixed case starting with upper case. Line, FilePrefix.
2. Variable names must be in mixed case starting with lower case. line, filePrefix.
3. Names representing constants must be all uppercase using underscore to separate words. MAX_ITERATIONS, COLOR_RED.
4. Names representing methods and functions should be verbs and written in mixed case starting with lower case. getName(), computeTotalWidth().
5. Names representing template types in C++ should be a single uppercase letter. template template
For example:
A=b * c

Q.07. Which software document is considered as the base document to start the testing phase of software.
Answer:
FS is the document to start testing phase

Q.08. A developer writes a class and test it by himself?
Unit testing
System testing
Integration testing
Answer:
Unit testing is done by developer himself.

CS504 MCQz File very Help ful

Attachments:

Today My CS504 Paper at 10:30
Q1. examples of Software debugging
Q2. List down any three potential points (phase) in development life cycle where there are greater chance of defect inclusion into development.
Q3. Q.08. A developer writes a class and test it by himself?
Unit testing
System testing
Integration testing
Answer:
Unit testing is done by developer himself.
Q4. Difference Black & White Box ?
Q5 3 types of Three-tier Architecture
Ans : (presentation, application, database)
Q6: 5. what are acceptable abbreviations in the following: 5
cmd:command,
cp:copy,init:initialize ,
html:HyperTextMarkupLanguage ,
cpu:CentralProcessingUnit
Q7: Performance engineers and tester are concerned to which view in krutchen’s 4+1 view?
Q8: .write the name of all OSI refrence architecture? 5
Q9: ak is tara ka tha question
while a
{
while b
c
d
}

today my paper was
25 mcqs from moaz file.
subjective 5 question from moaz file.
first sequential digital computer?
black and white box testing?
TAB and page break wala?
architectureal formula?

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