ASP .NET Interview Questions- Part 3

  • Differences between DLL and EXE?
  • Can an assembly have EXE?
  • Can a DLL be changed to an EXE?
  • Compare & contrast rich client (smart clients or Windows-based) & browser-based Web application
  • Compare Client server application with n-Tier application
  • Can a try block have more than one catch block?
  • Can a try block have nested try blocks?
  • How do you load an assembly at runtime?
  • If I am writing in a language like VB or C++, what are the procedures to be followed to support .NET?
  • How do you view the methods and members of a DLL?
  • What is shadowing?
  • What are the collections you’ve used?

ASP .NET Interview Questions- Part 2

  • Explain the life cycle of an ASP .NET page.

  • Explain the .NET architecture.

  • What are object-oriented concepts?

  • How do you create multiple inheritance in c# and .NET?

  • When is web.config called?

  • How many weg.configs can an application have?

  • How do you set language in weg.config?

  • What does connection string consist of?

  • Where do you store connection string?

  • What is abstract class?

  • What is difference between interface inhertance and class inheritance?

  • What are the collection classes?

  • What are the types of threading models?

  • What inheritance does VB.NET support?

  • What is a runtime host?

  • Describe the techniques for optimizing your application?

  • Differences between application and session

  • What is web application virtual directory?

  • Differences between Active.exe and Dll

  • Connection pooling in MTS?

  • If cookies is disabled in client browser, will session tracking work?

  • How do you make your site SSL-enabled?

  • Will the following code execute successfully: response.write(’value of i=’+i);

  • What are the provides available with VB.NET?

  • What is a Process, Sesion and Cookie?

  • What are Abstract base classes?

  • What are the Difference between bstract base classes and Abstrat classes

  • What are interface in .NET?

  • How is Polymorphism supports in .NET?

  • What are the 2 types of polymorphism supports in .NET?

  • Types of compatibilities and explain them.

  • What is aggregative? How can it be implements in .NET?

  • Difference between COM components and .NET components?how to register it

  • Difference between early binding and late binding?


  • Asp.NET life cycle? When request mode

  • Explain ADO and its objects.

  • What is side by side execution?

  • Explain serialization?

  • Explain a class access specifiers and method acess specifiers.

  • What is the difference between overloading and overriding ? how can this be .NET

  • Explain virtual function and its usage.

  • How do you implement inhetance in .NET?

  • If I want to override a method 1 of class A and this class B then how do you declared

  • Explain friend and protected friend.

  • Explain multiple and multi_level inheritance in .NET?

  • Name all kind of access specifiers for a class and for methods?

  • On ODP.NET

  • What is non-derterministic finalization?

  • What is isPostback property?

  • What is dictionary base class?

  • How can a class be extended and how is this mechanism difff from that of implementation an interface?

  • What are indexes .NET?

  • How can indexes be implemented in .NET?

Infosys Interview Questions Part - 1

1. four family names are given clark ,flure,miller ,jac… and their members name are given Stacy ,robin,Erica,mandy . but not in order.( u hav to find which frend belongs to which family) Each friend prepares salad using 3 different fruits . they are given apple, cherry, grape, banana., no two friends uses the same combination.
Various conditions are given and 4 ques asked.

1. Robin is not belonging to miller family he used apples.
2. Erica is not a miller not a Clark.
3. Clark family used cherries and grapes but flure used one of these not both.
4. Mandy and miller used apples and cherries

1. Which fruit did Mandy didn't used?
2. What are the fruits used in miller salad?
3. Robin belongs to which family?
4. What r the Common fruits used in robin and Erica salads?

2. there r some bees in a garden..1/5th of them went to a particular
flower,1/3rd went to another flower,3 times the difference of the above
two went to third flower..n one was remaining n it was roaming many bees were there? (3 marks)

Four persons A, B, C and D are playing cards.
Each person has one card, laid down on the table below him, which
two different colours on either side.
The colours visible on the table are Red, Green, Red and Blue.
They see the color on the reverse side and give the following

A: Yellow or Green
B: Neither Blue nor Green
C: Blue or Yellow
D: Blue or Yellow

Given that out of the 4 people 2 always lie find out the colours on the
cards each person.

4. In a dark room, there is a box containing 5 white balls, 5 black balls, 5 yellow balls, 5 blue balls, and 5 red balls. What is the least number of balls to be chosen so as to ensure a pair of socks has been drawn ?

5. out of 100 people , 85 had cars, 70 had mobiles, 80 had own house,75 people had bikes. How many people had all of these… ?

6. 6. A and B together had set their watch at showing same time. Unknowing to both of them, A’s watch is fast by 1 minute and B’s watch is slow by 2 minutes. After the couple of hours, when they looked at their watch ,, it was found that A’s watch was 1 hour ahead of B’s watch.. Can you say how long it is before their difference in time is 1 hour..but after setting their watch at same time..

7. Ajit was driving down the country side when he saw a farmer tending his pigs and ducks in his yard. Ajit asked the farmer how many of each he had.

The farmer replied that there were 60 eyes and 86 feet between them.

How many ducks and how many pigs were there ?

8. This question about footprint in kitchen.. three brothers annie, danny, fanny. Their mother asks them about something stolen from the kitchen.. From these children, one tells truth, and other two tell lies .Annie says “I didn’t do it “, Fanny says “ Danny did it”, and Danny says “ fanny says lie “.. the question is to find whose footprint in the kitchen…

9. This question is about to find the ages of three persons.. Three statements from each person will be given. And from the 3 statements from each person, one statement will be false and the other two will be truth. So totally 9 statements there. With the help of these information , we have to find the ages of these 3 persons.

10. In a box, there will be a certain number of papers in some order, each containing person name. A manager was asked to choose the people from the box randomly, say 5%.(ie., 5% of people should have to be taken). The manager picks first one and left the next, picks third one and left next 2 , and picks sixth one and left next 3. and goes on.
When he picks the last one, it is actually the final one in the box.!!.. so he got 5% people from the box.. what was the total no of papers in the box ?

Important SEO Interview Questions

1. What SEO results can you show?

2. What do you believe are important things to take into consideration when optimising a site?

3. Who do you respect in the industry?

4. What web analytics programs are you familiar with?

5. List On-Page SEO factors

6. List 5 link building techniques.

7. What is page segmentation? (Ever heard of VIPS?)

8. What’s the difference between PageRank and ToolBar PageRank?

9. What is Latent Semantic Analysis (LSI - Indexing)?

10. What is Phrase Based Indexing and Retrieval and what roles does it play?

11. What is sandbox?

12. How long does it take to get out of sandbox?

13. How can you track your rankings?

14. What services does the wordtracker offer, and how do they relate to seo?

15. What are the common factors between google/yahoo/msn?

16. How can you keep your PPC bids from cannibalizing your search efforts on other (non pay per click) search engines?

17. What percentage of your pay per click budget should go to each search engine?

18. Does either Google Adwords or Overture work better for your particular product or service? Or, perhaps neither one is appropriate from a return on investment (ROI) perspective.

19. Give me a description of your general SEO experience.

20. Do you currently do SEO on your own sites and give me some examples. Do you operate any blogs? Do you currently do any freelance work and do you plan on continuing it?

22. Where do you think the SEO industry is headed?

23. What industry sites, blogs, and forums do you regularly read?

24. Have you attended any search related conferences?

25. What SEO tools do you regularly use?

25. What SEO areas are you weak and strong in, and give examples of both.

26. What areas do you think are currently the most important in organically ranking a site?

28. What kind of strategies do you normally implement for backlinks? What do you think about link buying, link bait, and other specific backlink strategies?

29. What are your thoughts on the direction of Web 2.0 technologies with regards to SEO?
blogs, rss, podcasting

30. Are you familiar with search arbitrage?

31. Are you familiar with enterprise web analytics and what packages are your familiar with?

32. Are you familiar with A/B testing and multivariate testing?

33. Do you have experience in email marketing, banner advertising, other types of media buys and other forms of online advertising?

34. Are you experienced in managing PPC campaigns? To what extent and on what platforms?

35. Do you have experience in bid management tools, API tools, and click fraud issues?

36. Do you have experience in extensive competitive analysis and what techniques do you use?

37. What technologies are you familiar with? (We primarily use HTML, CSS, ASP, .net, PHP, SQL, and JavaScript)

38. Why are you moving from your current position and/or leaving any current projects?

39. Do you know who Matt Cutts is?

44. In Google Lore - what are ‘Hilltop’ Florida’ and ‘Big Daddy’?

45. What changes did you make and what ranking effect did it have?

46. What is sticky content?

Crazy Google Interview Questions

1. How many golf balls can fit in a school bus?

2. You are shrunk to the height of a nickel and your mass is proportionally reduced so as to maintain your original density. You are then thrown into an empty glass blender. The blades will start moving in 60 seconds. What do you do?

3. How much should you charge to wash all the windows in Seattle?

4. How would you find out if a machine’s stack grows up or down in memory?

5. Explain a database in three sentences to your eight-year-old nephew.

6. How many times a day does a clock’s hands overlap?

7. You have to get from point A to point B. You don’t know if you can get there. What would you do?

8. Imagine you have a closet full of shirts. It’s very hard to find a shirt. So what can you do to organize your shirts for easy retrieval?

9. Every man in a village of 100 married couples has cheated on his wife. Every wife in the village instantly knows when a man other than her husband has cheated, but does not know when her own husband has. The village has a law that does not allow for adultery. Any wife who can prove that her husband is unfaithful must kill him that very day. The women of the village would never disobey this law. One day, the queen of the village visits and announces that at least one husband has been unfaithful. What happens?

10. In a country in which people only want boys, every family continues to have children until they have a boy. if they have a girl, they have another child. if they have a boy, they stop. what is the proportion of boys to girls in the country?

11. If the probability of observing a car in 30 minutes on a highway is 0.95, what is the probability of observing a car in 10 minutes (assuming constant default probability)?

12. If you look at a clock and the time is 3:15, what is the angle between the hour and the minute hands? (The answer to this is not zero!)

13. Four people need to cross a rickety rope bridge to get back to their camp at night. Unfortunately, they only have one flashlight and it only has enough light left for seventeen minutes. The bridge is too dangerous to cross without a flashlight, and it�s only strong enough to support two people at any given time. Each of the campers walks at a different speed. One can cross the bridge in 1 minute, another in 2 minutes, the third in 5 minutes, and the slow poke takes 10 minutes to cross. How do the campers make it across in 17 minutes?

14. You are at a party with a friend and 10 people are present including you and the friend. your friend makes you a wager that for every person you find that has the same birthday as you, you get $1; for every person he finds that does not have the same birthday as you, he gets $2. would you accept the wager?

15. How many piano tuners are there in the entire world?

16. You have eight balls all of the same size. 7 of them weigh the same, and one of them weighs slightly more. How can you find the ball that is heavier by using a balance and only two weighings?

17. You have five pirates, ranked from 5 to 1 in descending order. The top pirate has the right to propose how 100 gold coins should be divided among them. But the others get to vote on his plan, and if fewer than half agree with him, he gets killed. How should he allocate the gold in order to maximize his share but live to enjoy it? (Hint: One pirate ends up with 98 percent of the gold.)

Google Interview Questions - 1

Why are manhole covers round?

A man pushed his car to a hotel and lost his fortune. What happened?

Explain the significance of "dead beef".

Write a C program which measures the the speed of a context switch on a UNIX/Linux

Given a function which produces a random integer in the range 1 to 5, write a function which produces a random integer in the range 1 to 7.

Describe the algorithm for a depth-first graph traversal.

Design a class library for writing card games.

You need to check that your friend, Bob, has your correct phone number, but you cannot ask him directly. You must write a the question on a card which and give it to Eve who will take the card to Bob and return the answer to you. What must you write on the card, besides the question, to ensure Bob can encode the message so that Eve cannot read your phone number?

How are cookies passed in the HTTP protocol?

What is the size of the C structure below on a 32-bit system? On a 64-bit?

struct foo {
char a;
char* b;

Design the SQL database tables for a car rental database.

Write a regular expression which matches a email address.

Write a function f(a, b) which takes two character string arguments and returns a string containing only the characters found in both strings in the order of a. Write a version which is order N-squared and one which is order N.

You are given a the source to a application which is crashing when run. After running it 10 times in a debugger, you find it never crashes in the same place. The application is single threaded, and uses only the C standard library. What programming errors could be causing this crash? How would you test each one?

Explain how congestion control works in the TCP protocol.

J2EE Interview Questions Part - 2

21. What is business logic ?

22.What is business method ?

23. What is callback methods ?

23. What is caller ?

25. What is caller principal ?

26. What is cascade delete ?

27. What is CDATA ?

28. What is certificate authority ?

29. What is client-certificate authentication ?

30. What is comment ?

31. What is commit ?

32. What is component contract ?

33. What is component-managed sign-on ?

33. What is connector ?

35. What is Connector architecture ?

36. What is container ?

37. What is container-managed persistence ?

38. What is container-managed sign-on ?

39. What is container-managed transaction ?

40. What is content ?

J2EE Interview Questions Part - 1

1. What is J2EE?

2. What is the J2EE module?

3. What are the components of J2EE application?

4. What are the four types of J2EE modules?

5. What does application client module contain?

6. What does web module contain?

7. What are the differences between Ear, Jar and War files? Under what circumstances should we use each one?

8. What is the difference between Session bean and Entity bean? one?

9. What is "applet"

10. What is "applet container"

11. What is authorization?

12. What is authorization constraint

13. What is B2B

14. What is backing bean

15. What is basic authentication

16. What is bean-managed persistence

17. What is bean-managed transaction

18. What is binding (XML)

19. What is binding (JavaServer Faces technology)

20. What is build file

Aptitude Question Part - 1

1.A three digit number consists of 9,5 and one more number . When these digits are reversed and then subtracted from the original number the answer yielded will be consisting of the same digits arranged yet in a different order. What is the other digit?

2.A farmer built a fence around his 17 cows,in a square shaped region.He used 27 fence poles on each side of the square. How many poles did he need altogether???

3.On the first test of the semester, kiran scored a 60. On the last test of the semester, kiran scored 75% By what percent did kiran's score improve?

4.A group consists of equal number of men and women. Of them 10% of men and 45% of women are unemployed. If a person is randomly selected from the group. Find the probability for the selected person to be an employee.

5. Randy's chain of used car dealership sold 16,400 cars in 1998. If the chain sold 15,744 cars in 1999, by what percent did the number of cars sold decrease?

6. A radio when sold at a certain price gives a gain of 20%. What will be the gain percent, if sold for thrice the price?

7. If a man walks at the rate of 5kmph, he misses a train by only 7min. However if he walks at the rate of 6 kmph he reaches the station 5 minutes before the arrival of the train.Find the distance covered by him to reach the station.

8.If the Arithmetic mean is 34 and geometric mean is 16 then what is greates number in that series of numbers?

9. The diameter of the driving wheel of a bus is 140cm. How many revolutions per minute must the wheel make in order to keep a speed of 66 kmph?

10. The boys and girls in a college are in the ratio 3:2. If 20% of the boys and 25% of the girls are adults, the percentage of students who are not adults is:??

11. Vivek travelled 1200km by air which formed 2/5 of his trip.One third of the whole trip , he travelled by car and the rest of the journey he performed by train. The distance travelled by tain was???

12. In a college ,1/5 th of the girls and 1/8 th of the boys took part in a social camp.What of the total number of students in the college took part in the camp?
13. On sports day,if 30 children were made to stand in a column,16 columns could be formed. If 24 children were made to stand in a column , how many columns could be formed?

14. Two trains 200mts and 150mts are running on the parallel rails at this rate of 40km/hr and 45km/hr.In how much time will they cross each other if they are running in the same direction.

15. 5/9 part of the population in a village are males. If 30% of the males are married, the percentage of unmarried females in the total population is:

16. From height of 8 mts a ball fell down and each time it bounces half the distnace back. What will be the distance travelled

17. First day of 1999 is sunday what day is the last day

18. Increase area of a square by 69% by what percent should the side be incresed

19. Ten years ago, chandrawathi’s mother was four times older than her daughter. After 10years, the mother will be twice older than daughter. The present age of Chandrawathi is:

20. Finding the wrong term in the given series

Software Testing Definitions

What's Ad Hoc Testing ?

A testing where the tester tries to break the software by randomly trying functionality of software.

What's the Accessibility Testing ?

Testing that determines if software will be usable by people with disabilities.

What's the Alpha Testing ?

The Alpha Testing is conducted at the developer sites and in a controlled environment by the end user of the software

What's the Beta Testing ?

Testing the application after the installation at the client place.

What is Component Testing ?

Testing of individual software components (Unit Testing).

What's Compatibility Testing ?

In Compatibility testing we can test that software is compatible with other elements of system.

What is Concurrency Testing ?

Multi-user testing geared towards determining the effects of accessing the same application code, module or database records. Identifies and measures the level of locking, deadlocking and use of single-threaded code and locking semaphores.

What is Conformance Testing ?

The process of testing that an implementation conforms to the specification on which it is based. Usually applied to testing conformance to a formal standard.

What is Context Driven Testing ?

The context-driven school of software testing is flavor of Agile Testing that advocates continuous and creative evaluation of testing opportunities in light of the potential information revealed and the value of that information to the organization right now.

What is Data Driven Testing ?

Testing in which the action of a test case is parameterized by externally defined data values, maintained as a file or spreadsheet. A common technique in Automated Testing.

What is Conversion Testing ?

Testing of programs or procedures used to convert data from existing systems for use in replacement systems.

What is Dependency Testing ?

Examines an application's requirements for pre-existing software, initial states and configuration in order to maintain proper functionality.

What is Depth Testing ?

A test that exercises a feature of a product in full detail.

What is Dynamic Testing ?

Testing software through executing it. See also Static Testing.

What is Endurance Testing ?

Checks for memory leaks or other problems that may occur with prolonged execution.

What is End-to-End testing ?

Testing a complete application environment in a situation that mimics real-world use, such as interacting with a database, using network communications, or interacting with other hardware, applications, or systems if appropriate.

What is Exhaustive Testing ?

Testing which covers all combinations of input values and preconditions for an element of the software under test.

What is Gorilla Testing ?

Testing one particular module, functionality heavily.

What is Installation Testing ?

Confirms that the application under test recovers from expected or unexpected events without loss of data or functionality. Events can include shortage of disk space, unexpected loss of communication, or power out conditions.

What is Localization Testing ?

This term refers to making software specifically designed for a specific locality.

What is Loop Testing ?

A white box testing technique that exercises program loops.

What is Mutation Testing ?

Mutation testing is a method for determining if a set of test data or test cases is useful, by deliberately introducing various code changes ('bugs') and retesting with the original test data/cases to determine if the 'bugs' are detected. Proper implementation requires large computational resources

What is Monkey Testing ?

Testing a system or an Application on the fly, i.e just few tests here and there to ensure the system or an application does not crash out.

What is Positive Testing ?

Testing aimed at showing software works. Also known as "test to pass". See also Negative Testing.

What is Negative Testing ?

Testing aimed at showing software does not work. Also known as "test to fail". See also Positive Testing.

What is Path Testing ?

Testing in which all paths in the program source code are tested at least once.

What is Performance Testing ?

Testing conducted to evaluate the compliance of a system or component with specified performance requirements. Often this is performed using an automated test tool to simulate large number of users. Also know as "Load Testing".

What is Ramp Testing ?

Continuously raising an input signal until the system breaks down.

What is Recovery Testing ?

Confirms that the program recovers from expected or unexpected events without loss of data or functionality. Events can include shortage of disk space, unexpected loss of communication, or power out conditions.

What is the Re-testing testing ?

Retesting- Again testing the functionality of the application.

What is the Regression testing ?

Regression- Check that change in code have not effected the working functionality

What is Sanity Testing ?

Brief test of major functional elements of a piece of software to determine if its basically operational.

What is Scalability Testing ?

Performance testing focused on ensuring the application under test gracefully handles increases in work load.

What is Security Testing ?

Testing which confirms that the program can restrict access to authorized personnel and that the authorized personnel can access the functions available to their security level.

What is Stress Testing ?

Stress testing is a form of testing that is used to determine the stability of a given system or entity. It involves testing beyond normal operational capacity, often to a breaking point, in order to observe the results.

What is Smoke Testing ?

A quick-and-dirty test that the major functions of a piece of software work. Originated in the hardware testing practice of turning on a new piece of hardware for the first time and considering it a success if it does not catch on fire.

What is Soak Testing ?

Running a system at high load for a prolonged period of time. For example, running several times more transactions in an entire day (or night) than would be expected in a busy day, to identify and performance problems that appear after a large number of transactions have been executed.

What's the Usability testing ?

Usability testing is for user friendliness.

What's the User acceptance testing ?

User acceptance testing is determining if software is satisfactory to an end-user or customer.

What's the Volume Testing ?

We can perform the Volume testing, where the system is subjected to large volume of data.

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PPC (Pay Per Click) Sample Questions

What is PPC?

Does Yahoo offer PPC program?

What is the minimum bid amount (in US $) for a click under Google Adwords program?

What are the advantages of PPC?

What are the disadvantages of PPC?

Which is the most popular PPC program today?

What is the meaning of CPM?

What is a landing page?

What is Mod_Rewrite module?

What is the approximate size (in US $) of PPC industry?

Can a lower bid Ad get higher ranking than an Ad with higher bid amount in Google Adwords?

SEO (Search Engine Optimization) Sample Questions

What is SEO?

What is Google PR as shown on Google toolbar?

What is key word density?

What is the numeric range of PR shown on Google Toolbar?

Is Frame based website recommended for SEO?

In Google, how do you find the backward links for a webpage?

List 3 important directories.

List 3 important online Press Release sites.

List 3 important article sites.

What are the advantages of SEO?

What are the disadvantes of SEO?

What is black hat SEO? List 3 black hat SEO techniques.

List 5 important website parameters for onsite SEO?

What is the difference between direct and indirect link?

What is the recommended length (in characters) of the Title and the Description tags?

What do you mean by SERPs?

What do you mean by keyword proximity?

What do you mean by keyword stemming?

What do you mean by cloaking?

What are the different ways of link building?

What is the approximate size (in US $) of SEO industry?

How do you optimize dynamic web pages?

What is Mod_Rewrite module?

SEM Sample Interview Questions

What is Search Engine Marketing?

What are two most important forms of Search Engine Marketing?

List top 3 Search Engines in terms of search traffic?

What do you mean by Unique Visitor?

Why is SEM gaining popularity?

What is Web Analytics?

Name 3 popular SEM discussion forums?

What is Alexa ranking?

What is the difference between Search Engine Marketing and Internet Marketing?

What is the approximate size (in US$) of Search Engine Marketing industry?

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