Skip to main content

Technical Interview Questions - important for TCS, Wipro, Cognizent, Accenture, IBM

  • What does static variable mean?
  • What is a pointer?
  • What is a structure?
  • What are the differences between structures and arrays?
  • In header files whether functions are declared or defined?
  • What are the differences between malloc() and calloc()?
  • What are macros? what are its advantages and disadvantages?
  • Difference between pass by reference and pass by value?
  • What is static identifier?
  • Where are the auto variables stored?
  • Where does global, static, local, register variables, free memory and C Program instructions get stored?
  • Difference between arrays and linked list?
  • What are enumerations?
  • What is a class?
  • What is an object?
  • What is the difference between an object and a class?
  • What is the difference between class and structure?
  • What is public, protected, private?
  • What are virtual functions?
  • What is friend function?
  • What is a scope resolution operator?
  • What do you mean by inheritance?
  • What is abstraction?
  • What is a data structure?
  • What does abstract data type means?
  • Evaluate the following prefix expression " ++ 26 + - 1324" (Similar types can be asked)
  • Convert the following infix expression to post fix notation ((a+2)*(b+4)) -1 (Similar types can be asked)
  • How is it possible to insert different type of elements in stack?
  • Stack can be described as a pointer. Explain.
  • Write a Binary Search program
  • What is the difference between an Abstract class and Interface?
  • What is user defined exception?
  • What do you know about the garbage collector?
  • What is the difference between java and c++?
  • In an HTML form I have a button which makes us to open another page in 15 seconds. How will you do that?
  • What is the difference between process and threads?
  • What is update method called?
  • Have you ever used HashTable and Directory?
  • What are statements in Java?
  • What is RMI?
  • Explain about RMI Architecture?
  • What are Servelets?
  • What is the use of servlets?
  • Explain RMI Architecture?
  • How will you pass values from HTML page to the servlet?
  • How do you load an image in a Servelet?
  • What is purpose of applet programming?
  • How will you communicate between two applets?
  • What are the basic functions of an operating system?
  • Explain briefly about, processor, assembler, compiler, loader, linker and the functions executed by them.
  • What are the difference phases of software development? Explain briefly?
  • Differentiate between RAM and ROM?
  • What is DRAM? In which form does it store data?
  • What is cache memory?
  • What is hard disk and what is its purpose?
  • Differentiate between Complier and Interpreter?
  • What are the different tasks of Lexical analysis?
  • What are the different functions of Syntax phase, Sheduler?
Labels:

Popular posts from this blog

Cognizant Company Profile and it's information for Interview

Website: www.cognizant.com HQ Teaneck, NJ Industry Information Technology Services Size 130K+ Employees, $6B+ Revenue NASDAQ CTSH Competitors Infosys, Wipro, Tata Consultancy Services   About cognizant Cognizant Corporate view: Cognizant is an American multinational IT services and consulting corporation headquartered in Teaneck, New Jersey, United States. Cognizant has been named to the 2010 Fortune 100 Fastest-Growing Companies List for the eighth consecutive year. Cognizant has also been named to the Fortune 1000 and Forbes Global 2000 lists. It has consistently ranked among the fastest growing companies including the 2010 Business Week 50 list of the top-performing U.S. companies, the Business Week Hottest Tech Companies 2010, and the Forbes Fast Tech 2010 list of 25 Fastest Growing Technology Companies In America. Founded: 1994 Headquarters: Teaneck, New Jersey, U.S. Key people:  Francisco D'Souza (President & CEO) Lakshmi Naray...
Post a Comment
Read more

Two sticks and matchbox, measure exactly 45 minutes by burning these sticks

Question: You have two sticks and matchbox. Each stick takes exactly an hour to burn from one end to the other. The sticks are not identical and do not burn at a constant rate. As a result, two equal lengths of the stick would not necessarily burn in the same amount of time.  How would you measure exactly 45 minutes by burning these sticks? Answer: This puzzle used to be asked in Wall Street interviews long time ago. It is very rare for this question to be asked now but it is a very good question to help you think a little outside the normal thought process. The answer is really simple. Since the sticks do not burn at a constant rate, we can not use the length of the stick as any sort of measurement of time. If we light a stick, it takes 60 minutes to burn completely. What if we light the stick from both sides? It will take exactly half the original time, i.e. 30 minutes to burn completely. 0 minutes – Light stick 1 on both sides and stick 2 on one s...
Post a Comment
Read more

CIVIL SERVICES' (I.A.S.) EXAMINATION

The Union Public Service Commission (U.P.S.C.)  conducts Civil Services' Examination once a year in two stages. The Preliminary Examination (Objective Type) for selection of candidates for the Main Examination is held in the month of May. The Civil Services Main Examination  is held in the months of October/November. Blank application forms and other particulars are published in the Employment News, generally in the month of December. The last date for the submission of applications to the Secretary, Union Public Service Commission, Dholpur House, Shahjahan Road, NewDelhi-11001 1 is usually the last week of January of the year of examination. The Combined Civil Services Examination is conducted for Recruitment to the following Services/Posts: 1. Indian Administrative Service. 2. Indian Foreign Service. 3. Indian Police Service. 4. Indian P & T Accounts & Finance Service, Group 'A'. 5. Indian Audit and Accounts Service, Group 'A'. 6. Indian Customs and Centr...
1 comment
Read more