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IT Interview Questions

By Priya PedamkarPriya Pedamkar

IT Interview Questions

Introduction to IT Interview Questions and Answers

The following article provides an outline for IT Interview Questions. Different companies have different approaches to take interviews, but most companies have a common approach to take the interview. Companies want to check the logical, analytical, problem-solving skills, combination skills, and presentation skills of the candidate; on the basis of this factor, they filter the candidates. To check these skills, they conduct many rounds of an interview it varies from company to company, maximum company conduct an online test to check logical, problem-solving skills, to check communication and presentation skills they conduct Group discussions or debates.

To check technical skills, they follow many faces to face interviews, in which the Interviewer checks the technical skills of the candidate as per the company projects requirements after they conduct managerial round HR rounds to check various factors related to the students like their way to solve the problem, how to handle client escalation, behavior questions. After all-around company selects the candidate who satisfies the companies’ criteria and the number of requirements.

Now, if you are looking for a job related to IT, you need to prepare for the 2023 IT Interview Questions. Every interview is indeed different as per the different job profiles. Here, we have prepared the important IT Interview Questions and Answers, which will help you succeed in your interview.

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In this 2023 IT Interview Questions article, we shall present the 10 most important and frequently used IT interview questions. These questions will help students build their concepts around IT and help them to crack the interview.

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Part 1 – IT Interview Questions (Basic)

This first part covers basic Interview Questions and Answers.

Q1. Tell me about you?

Answer:

This is the first question in every IT interview; the interviewer wants to know more about the candidate apart from his resume; a way to answer this question varies from fresher to experienced candidate at the fresher level it required more college-level details while in case of experience interview, Interviewer wants to know more about candidate’s current company, previous company, projects, challenges faced during development.

At the Fresher level, a candidate can tell about himself, about his schooling, colleges, a project done during college life, subject knowledge, technologies, programming languages, achievement in life, hobbies, strength much more what he had done something in his life. While in the case of Experience level, candidate can tell about the current company and his role in the current company on which project he is working on, what are his contribution in that project, previous company and its project, and his role? What are the technologies he knows?

Q2. Tell me the technologies you know?

Answer:

These questions are generally asked in Technical rounds here; the interviewer wants to check what are the technologies candidate knows at a fresher level candidate can tell whatever he studies during his college life or did training in particular technologies like C, C++, Java, SQL, Html, JavaScript. At the Experience level, candidates can tell whatever technologies he is using to his current company, technologies in which he has hands-on experience.

Q3. Reverse the given String in Java?

Answer:

public class ReverseString {
public static void main(String[] args) {
// TODO Auto-generated method stub
String givenString="vinay kumar pal";
char arr[]= givenString.toCharArray();
int low=0,high=givenString.length()-1;
while(low<high)
{
char temp=arr[low];
arr[low]=arr[high];
arr[high]=temp;
low++;
high--;
}
givenString=String.valueOf(arr);
System.out.println(givenString);
}
}

Q4. Print the Matrix in spiral form?

Answer:

public class SpiralMatrix {
public static void main(String[] args) {
// TODO Auto-generated method stub
int R = 3;
int C = 6;
int a[][] = { {1, 2, 3, 4, 5, 6},
{7, 8, 9, 10, 11, 12},
{13, 14, 15, 16, 17, 18}
};
spiralPrint(R,C,a);
}
private static void spiralPrint(int r, int c, int[][] a) {
// TODO Auto-generated method stub
int i=0 , j=0;
while(i<r && j<c)
{
for(int x=j;x<c;x++)
{
System.out.print(a[i][x]+" ");
}
i++;
for(int x=i;x<r;x++)
{
System.out.print(a[x][c-1]+" ");
}
c--;
if (i < r) {
for (int x = c - 1; x >= j; x--) {
System.out.print(a[r - 1][x]+" ");
}
r--;
}
if (j < c) {
for (int x = r-1; x >= i; x--) {
System.out.print(a[x][j]+" ");
}
j++;
}
}
}
}

Q5. What is Normalization, DBMS, SQL?

Answer:

DBMS stands for a relational database management system, data stored in many tables and relationship created by foreign key Normalization is used to remove duplicates data, tables divided into small tables in the relationship between them created, the main motive here is only one Column should be used as a primary key if one column values dependent on another column in this case table again divided into small tables. The normal form is the following: the normal form, Second normal form, BNC normal form, fourth normal form, and fifth normal form.

SQL –stands for a Structural query language, which is used to fetch data from the database, inserting a new record into the database, updating records into the database, deletion of records into the database. It has many commands which can be used for various purposes as per the need.

Part 2 – IT Interview Questions (Advanced)

Let us now have a look at the advanced Interview Questions.

Q6. How can you design a front view of your websites?

Answer:

To develop the front end of the website, HTML, CSS, JavaScript were used. HTML stands for the hypertext markup language, is a tag-based language having a various tag for various purposes, like form, table, label, etc. It is used to design the user interface, while the CSS cascading style sheet is used to bring attractiveness to the UI; it provides various color options, font options to make it beautiful. JavaScript is used to put validation at a client, like input form validation done through JavaScript.

Q7. What is OOPs?

Answer:

OOP – stand for object-oriented programming language; in this, everything represents in form object. It has classes and its objects. It supports inheritance – one class can extend to another class, polymorphism – one name many form two function having the same name to perform a different task, encapsulation – the wrapping of members into class, data abstraction – showing functionality only hiding complexity.

Q8. How can we keep up to date ourselves with the industries?

Answer:

We can be updated by always by subscribing to various blogs that bring the latest news about new technologies. Following the article, we can take a subscription from various online tutorial sites to always keep up to date.

Q9. What are your strength and weakness?

Answer:

It is a very common interview question in every IT interview at a fresher level. We can cleverly answer this like; for the strength, we can tell what is our real strength because the interviewer will definitely check that is really your strength or not. The weakness should tell our strength in form weakness like- when I start any work, I totally lost in that work and did not see time to go home before completing it.

Q10. Why should I hire you?

Answer:

Here you have to tell things that are matching to company requirements that are a reason the company should hire you.

Recommended Articles

This has been a guide to the list of IT Interview Questions and Answers so that the candidate can crackdown on these Interview Questions easily. Here in this post, we have studied top IT Interview Questions, which are often asked in interviews. You may also look at the following articles to learn more –

  1. GIT Interview Questions
  2. .NET Interview Questions
  3. Java Spring Interview Questions
  4. ADO.NET Interview Questions
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