Introduction to IT Interview Questions and Answers
Different companies have a different approach to take interviews, but most companies have a common approach to take the interview. Companies want to check logical, analytical, problem-solving skills, combination skills, and presentation skills of the candidate on the basis this factor they filter the candidates. To check these skills they conduct many rounds of an interview it varies company to company, maximum company conduct an online test to check logical, problem-solving skills, to check communication and presentation skill they conduct Group discussions or debates. To check technical skills they follow many faces to face interview, in which Interviewer checks technical skills of the candidate as per the company projects requirements. After they conduct managerial round HR rounds to check various factor related to the students like their way to solve the problem, how to handle client escalation, behaviors questions. After the all-around company selects the candidate who satisfies the companies’ criteria and the number of requirements.
Now, if you are looking for a job which is related to IT then you need to prepare for the 2020 IT Interview Questions. It is true that every interview is different as per the different job profiles. Here, we have prepared the important IT Interview Questions and Answers which will help you get success in your interview.
In this 2020 IT Interview Questions article, we shall present 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.
Part 1 – IT Interview Questions (Basic)
This first part covers basic IT Interview Questions and Answers.
Q1. Tell me about you?
Answer:
This is the first question in every IT interview, Interviewer wants to know more about the candidate apart from his resume, way to answer this question varies from fresher to experience candidate at 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 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 case of Experience level candidate can tell about the current company and his role in the current company on which project he working, 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:
This questions generally asked in Technical rounds here Interviewers wants to check the what are the technologies candidate knows at fresher level candid can tell whatever he studies during his college life or did training in particular technologies like C, C++, Java, SQL, Html, JavaScript.At Experience level candidate can tell whatever technologies he using to his current company, technologies in which he has hands-on experience.
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Let us move to the next IT Interview Questions.
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 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, 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 following –First normal form, Second normal form, BNC normal form, fourth normal form, fifth normal form.
SQL –stands for a Structural query language, is used to fetch data from the database, inserting a new record to the database, updating record into the database, deletion of record into the database. It has many commands which can be used for the various purpose as per the need.
Part 2 – IT Interview Questions (Advanced)
Let us now have a look at the advanced IT 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 used. HTML stands for hypertext markup language is tag-based language having the 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 the attractiveness on the UI it provides various color options, font option to make it beautiful. JavaScript is used to put validation at client like input from validation done through JavaScript.
Q7. What is OOPs?
Answer:
OOP- stand for object-oriented programing language; in this everything represent 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.
Let us move to the next IT Interview Questions.
Q8. how can we keep up to date ourselves with the industries?
Answer:
We can be updated by always by subscribing various blogs which brings the latest news about new technologies by following the article, can take subscription from various online tutorial sites to always keep up to date.
Q9. What are your strength and weakness?
Answer:
It is very common interview question in every IT interview at a fresher level we can answer this by the clever way like for the strength we can tell what is our real strength because interviewer definitely going to check that is it really your strength or not. For 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.
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