Data Structure & Algorithm Interview Questions And Answers

Data Structure & Algorithm Interview Questions And Answers - Part VIII.

Here, are some sample questions based on "Data Structures". Read it carefully as these questions will help you in cracking any interview.

36) What are the differences between linear search and binary search ?

The differences between linear and binary searches are:

Binary search carries out the searching process with the minimum number of comparisons but linear search does not guarantee lesser number of comparisons.
To save on time and comparisons, binary search is much more beneficial than linear search.
Binary search can work for only sorted arrays whereas linear search can work for both sorted as well as unsorted arrays.

37) State the condition(s) under which binary search is applicable ?

The conditions for binary search are:

The list must be sorted.
Lower bound and upper bound, and the sort order of the list must be known.

38) What are the advantages of linked lists over arrays ?

Linked lists overcome the drawbacks of arrays as in linked lists, number of elements need not be predetermined, and more memory can be allocated or released during the processing as and when required, making insertions and deletions much easier and simpler.

39) What is sorting of an array ? Name a few types of sorting techniques ?

Sorting of an array means arranging the array-elements in a specified order, i.e. either ascending or descending order. Numerous sorting techniques are available. A few of them are shell sort, shuttle sort, bubble sort, selection sort, quick sort, heap sort etc.

40) What is the mechanism of selection sort ?

In selection sort, the smallest or largest element key, depending on the user’s desired order, from the remaining unsorted array is searched for and put in the sorted array. This process is repeated until the entire array gets sorted.

ALSO READ THE FOLLOWING QUESTIONS

41) What do you mean by bubble sort ?
42) What is insertion sort ?
43) Differentiate between the different types of linked lists ?
44) What do you mean by ‘pushing’ and ‘popping’ with regard to stacks ?
45) What are input restricted dequeues and output restricted dequeues ?

46) What do you mean by Polish string ?
47) What do you mean by an infix, postfix and prefix expression ?
48) What is the evaluation order according to which an infix expression is converted to postfix expression ?
49) Give the advantages of using post fix notations over infix notations ?
50) How can prefix notations be converted to infix form ?

...Return To Data Structure Index.

... Return To HR Interview Index.

Tell Me Something About Yourself - Interview Answers.

Try to introduce some of your most important employment-oriented skills as well as your education and accomplishments to the interviewer. Answer to this question is very important because it positions you for the rest of the interview . That's why this statement is often called the "Positioning Statement". One should take the opportunity to show his/her communication skills by speaking clearly and concisely in an organized manner. Since there is no right or wrong answer for this question hence it is important to appear friendly. YOUR ANSWERS CAN BE: 1) I am a person with strong interpersonal skills and have the ability to get along well with people . I enjoy challenges and looking for creative solutions to problems. 2) Besides the details given in my resume, I believe in character values, vision and action. I am quick in learning from mistakes. I am confident that the various tests that you have conducted will corroborate my competencies apti...

What Is (Are) Your Weakness (Weaknesses)? - Interview Answers

There’s a saying – “However small the thorn maybe it has the ability to pierce.” Never say you are a Workaholic, a Perfectionist, etc. because it sounds negative. Try to convert these negative biased qualities into positive ones. For Example, In place of Workaholic you can say you are a hard worker and always willing to work for extra hours. In place of Perfectionist , you can say you are detail oriented and like to set high standard for work. “Try to specify your weakness as your strength and also highlight it as a benefit.” Your answers can be: 1) One of my weaknesses as I perceive is occasional compromise on time for quality and perfection. 2) I feel I am not very detail-oriented . I’m a person that wants accomplish as much as possible. I realized this hurts quality and therefore I‘m trying hard to find a balance between quality and quantity. 3) At times even when I need help, I try to solve my own problems instead of asking a co-worker who might know...

What Is (Are) Your Strengths? - Interview Answers

This is a simple and popular interview question. Generally people answer it in two ways. There are people who simply state their strength like “I am Young, Dynamic, Intelligent, Smart and so on…”. Such answer is neither right nor wrong but does not help u in any way also. Secondly there are peoples who state their strengths and explain them how he can use his strength for the job and industry. Do not simply state your strength. Everyone has some strength, all you need is to convert them into benefits. In short, try to advertise yourself by converting your features into strengths. “EVERYONE CLAIM THEY ARE HONEST, HARDWORKING, SMART AND SO ON….. BUT WITH AN EXAMPLE IT IS MUCH MORE BELIEVABLE.” Your answers can be : 1) I am a hard worker and because of this ability I can work for additional hours to accomplish my tasks.I am commitment oriented and hence I always enjoy the trust and confidence of my team mates which enables me to perform my duties very easily. 2) I am a...

HR & Technical Interview Questions With Answers.

Search This Blog