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Zenith Technologies Interview Questions, Process, and Tips
Zenith Technologies Interview Experiences
1 interview found
Anonymous
I applied via Walk-in and was interviewed in Apr 2022. There were 2 interview rounds.
(5 Questions)
- Q1. Joins,what is index,
- Ans.
Joins are used to combine data from two or more tables based on a related column. An index is a data structure that improves the speed of data retrieval.
Joins are used in SQL to combine data from multiple tables.
Indexes are used to improve the speed of data retrieval by creating a data structure that allows for faster searching.
Indexes can be created on one or more columns in a table.
There are different types of joins,...
- Q2. And ,or operators beetween operators
- Q3. What is like operator
- Ans.
The like operator is used to compare a string to a pattern using wildcards.
The pattern can include % to match any number of characters and _ to match a single character.
Example: SELECT * FROM customers WHERE name LIKE 'J%' will return all customers with names starting with J.
Example: SELECT * FROM customers WHERE name LIKE '%son' will return all customers with names ending in son.
- Q4. What is , insert delete
- Ans.
Insert delete is a common operation performed on data structures like arrays and linked lists.
Insertion involves adding a new element to the data structure at a specific position.
Deletion involves removing an element from the data structure at a specific position.
Examples include inserting a new value into an array at index 3 or deleting a node from a linked list.
These operations can affect the size and order of the da
- Q5. What is Update, trunkate,
- Ans.
Update and truncate are SQL commands used to modify data in a database.
Update is used to modify existing data in a table.
Truncate is used to delete all data from a table.
Update can be used with a WHERE clause to modify specific rows.
Truncate cannot be used with a WHERE clause and will delete all rows.
Update is a DML (Data Manipulation Language) command.
Truncate is a DDL (Data Definition Language) command.
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Skills evaluated in this interview
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I applied via Company Website and was interviewed before Dec 2020. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. Questions on Java,SQL,some trending technologies(IOT,Big data),pattern questions, programming questions with different approaches.
Interview Preparation Tips
I applied via Referral and was interviewed before Jan 2021. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Java questions
Interview Preparation Tips
I applied via Campus Placement and was interviewed before Feb 2021. There were 3 interview rounds.
Aptitude round consists Logical reasoning, General Aptitude, Grammar related questions etc. All are moderate level questions.
(3 Questions)
- Q1. Explain OOPs w.r.t Java
- Ans.
OOPs is a programming paradigm that uses objects to represent real-world entities. Java is an OOPs language.
OOPs stands for Object-Oriented Programming System
Java is a class-based OOPs language
Encapsulation, Inheritance, Polymorphism, and Abstraction are the four pillars of OOPs
Objects have state and behavior
Java supports interfaces, which allow for multiple inheritance
Example: A car can be represented as an object wit...
- Q2. Explain about the projects that you have worked on
- Q3. Explain how Java solves machine dependency of code execution
- Ans.
Java solves machine dependency by using bytecode and virtual machine.
Java code is compiled into bytecode which is platform-independent
The bytecode is executed by the Java Virtual Machine (JVM) which is platform-specific
JVM translates bytecode into machine code for the specific platform
This allows Java code to run on any platform with a JVM installed
Example: A Java program compiled on Windows can run on Linux or Mac as
(2 Questions)
- Q1. Why should we hire you?
- Q2. Tell me about yourself.
Interview Preparation Tips
- Java
Skills evaluated in this interview
I applied via Campus Placement and was interviewed before May 2021. There were 2 interview rounds.
Numerical ability and logical reasoning followed by some coding mcqs
(1 Question)
- Q1. Print 1 to 100 without for loop
- Ans.
Printing 1 to 100 without for loop
Use recursion to print numbers from 1 to 99
Print 100 outside the recursion
Use a base case to stop recursion at 100
Interview Preparation Tips
I applied via Campus Placement and was interviewed before Jun 2021. There were 2 interview rounds.
Simple aptitude test
(1 Question)
- Q1. General questions as per your cv
Interview Preparation Tips
- Aptitude
I applied via Company Website and was interviewed before Jul 2021. There were 2 interview rounds.
Attended the codevita competition in final year of college.
(3 Questions)
- Q1. About College Project
- Q2. Some very basics of java
- Q3. Experience of college project as a team
Interview Preparation Tips
I applied via Campus Placement and was interviewed before Aug 2021. There were 2 interview rounds.
It was a basic aptitude test.
(1 Question)
- Q1. Interview was fine. Mostly asked about my final year project.
Interview Preparation Tips
I applied via Campus Placement and was interviewed before Jun 2021. There were 2 interview rounds.
(1 Question)
- Q1. Explain the mini projects and main project completed during Engineering.
Interview Preparation Tips
- DBMS
- Software Engineering
- Basic coding
Be confident and have a smiling face in the interview round.
I applied via Campus Placement and was interviewed before May 2021. There were 2 interview rounds.
- basic programming on C
(1 Question)
- Q1. - question based on your resume
Interview Preparation Tips
whatever project you are including , you should know enough to explain everything.
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