Web Technology (Internet) Interview Questions

The World of WWW

What is HTTP? Explain its working?

What is DNS?

Why do I need a domain name like 'OneSmartClick.Com'?

What happens when I type in some url and press enter?

How does CGI work? Can I use 'C' language to write a CGI?

Working of Proxy Server, Cookies, types of cookies?

What is Firewall?

How to redirect to another page?

Some questions on web servers.

What is DOM?

Connection Pooling in IIS 3.0 and 4.0

What is Code Base, Style Sheets?

Need for CSS

DHTML: Difference between FontSize and Font Size?

Layers in TCP/IP

Some sites work with "http://sitename.com" but for some sites we need to specify "www" - like "http://www.sitename.com". Why?

Explain "URL Encoding",HTML "entity", GET method, POST method

If we force XML for web design, the browzer size will reduce. How?

How does DTD work?

Difference between ASP and DHTML?

How to create virtual directory in IIS?

Can I host muliple sites on same machine?

Administration of IIS.

Some questions on ODBC and internet.

XML and propritory databbases.

Working of ping, telnet, gopher.

Some questions about cross-browzer compatibility

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Object-Orientation Concepts, UML interview Questions

1. What is inheritance?
2. Difference between Composition and Aggregation.
3. Difference: Sequence Diagrams, Collaboration Diagrams.
4. Difference: 'uses', 'extends', 'includes'
5. What shall I go for Package Diagram?
6. What is Polymorphism?
7. Is class an Object? Is object a class?
8. Comment: C++ "includes" behavior and java "imports"
9. What do you mean by "Realization"?
10. What is a Presistent, Transient Object?
11. What is the use of Operator Overloading?
12. Does UML guarantee project success?
13. Difference: Activity Diagram and Sequence Diagram.
14. What is association?
15. How to resolve many to many relationship?
16. How do you represent static members and abstract classes in Class Diagram?
17. Can we use UML for user interface (UI) design?
18. Every object has : state, behavior and identity - explain
19. How to reverse engineer C++ code in UML?
20. What are the tools you used for OOAD?
21. Difference: Object Oriented Analysis (OOA) and Object Oriented Design (OOD)?
22. What are the four phases of the Unified Process ?
23. How do you convert uses cases into test cases?
24. Explain Class Diagram in Detail.
25. What are the Design Patterns you know.
26. When do you prefer to use composition than aggregation?
27. UML: IS it a process, method or notation?
28. Does a concept HAVE to become a class in Design?
29. What are the good practices to use while designing for reuse?
30. Can you think of some nice examples where *multiple* actors are associated with a use case ?
31. How to use CRC Cards for Class Design?
32. What is the difference between static and dynamic Classificaition.Give some examples.
33. Explian following terms: Constraint Rules, Design by contract.
34. What is Object Constraint Language (OCL)?
35. Difference Between Attribute and Association.
36. What are associative classes?

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Computer Networking, Socket Programming, IPC Interview Questions

Networking, Socket Programming, Inter-Process Communication

1. User(s) are complaining of delays when using the network. What would you do?
2. What are some of the problems associated with operating a switched LAN?
3. Name some of the ways of combining TCP/IP traffic and SNA traffic over the same link.
4. What sort of cabling is suitable for Fast Ethernet protocols?
5. What is a Class D IP address?
6. Why do I sometimes lose a server's address when using more than one server?
7. What is Firewall?
8. How do I monitor the activity of sockets?
9. How would I put my socket in non-blocking mode?
10. What are RAW sockets?
11. What is the role of TCP protocol and IP protocol.
12. What is UDP?
13. How can I make my server a daemon?
14. How should I choose a port number for my server?
15. Layers in TCP/IP
16. How can I be sure that a UDP message is received?
17. How to get IP header of a UDP message
18. Writing UDP/SOCK_DGRAM applications
19. How many bytes in an IPX network address?
20. What is the difference between MUTEX and Semaphore?
21. What is priority inversion?
22. Different Solutions to dining philosophers problem.
23. What is a message queue?
24. Questions on Shared Memory.
25. What is DHCP?
26. Working of ping, telnet, gopher.
27. Can I connect two computers to internet using same line ?

 

 

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Database Questions

1. What are the different types of joins?
2. Explain normalization with examples.
3. What cursor type do you use to retrieve multiple recordsets?
4. Diffrence between a "where" clause and a "having" clause
5. What is the difference between "procedure" and "function"?
6. How will you copy the structure of a table without copying the data?
7. How to find out the database name from SQL*PLUS command prompt?
8. Tadeoffs with having indexes
9. Talk about "Exception Handling" in PL/SQL?
10. What is the diference between "NULL in C" and "NULL in Oracle?"
11. What is Pro*C? What is OCI?
12. Give some examples of Analytical functions.
13. What is the difference between "translate" and "replace"?
14. What is DYNAMIC SQL method 4?
15. How to remove duplicate records from a table?
16. What is the use of ANALYZing the tables?
17. How to run SQL script from a Unix Shell?
18. What is a "transaction"? Why are they necessary?
19. Explain Normalizationa dn Denormalization with examples.
20. When do you get contraint violtaion? What are the types of constraints?
21. How to convert RAW datatype into TEXT?
22. Difference - Primary Key and Aggregate Key
23. How functional dependency is related to database table design?
24. What is a "trigger"?
25. Why can a "group by" or "order by" clause be expensive to process?
26. What are "HINTS"? What is "index covering" of a query?
27. What is a VIEW? How to get script for a view?
28. What are the Large object types suported by Oracle?
29. What is SQL*Loader?
30. Difference between "VARCHAR" and "VARCHAR2" datatypes.
31. What is the difference among "dropping a table", "truncating a table" and "deleting all records" from a table.
32. Difference between "ORACLE" and "MICROSOFT ACCESS" databases.
33. How to create a database link ?

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