Chronus Application Developer Interview Questions and Answers

Q1. Oops related questions
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Q2. MVC related questions
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Q1. Managerial questions
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Q2. About expectations
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Q1. What is sql and plsql?
Ans. 
SQL is a language used for managing and querying databases, while PL/SQL is an extension of SQL used for procedural programming.
• SQL stands for Structured Query Language and is used for managing and querying relational databases.

• PL/SQL stands for Procedural Language/SQL and is an extension of SQL that adds procedural programming capabilities.

• SQL is used to retrieve and manipulate data in databases using queries like SEL...read more
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Q2. Sql plsql data strucntire and differences
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SQL is a language used to manage and query databases, PL/SQL is an extension that adds procedural programming capabilities.
• SQL is used for querying and manipulating data in databases.

• PL/SQL is a procedural language extension for SQL, allowing for more complex logic and programming capabilities.

• Data structures in SQL refer to the way data is organized and stored in tables.

• PL/SQL allows for the creation of custom data st...read more
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Q1. Difference beyween fporms and reports
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Forms are used to input data while reports are used to display data.
• Forms are used to collect and input data into a system.

• Reports are used to display and present data in a structured format.

• Forms are interactive and allow users to input data, while reports are static and provide information based on the data entered.

• Examples: A registration form on a website vs. a sales report generated from a database.
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Q2. Oracle forms, rice components. workflows and all
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Coding Test two questions asked in an interview

Q1. Tell me about yourself
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I am a passionate Application Developer with 5 years of experience in developing web and mobile applications.
• Experienced in programming languages such as Java, JavaScript, and Swift

• Proficient in using frameworks like React, Angular, and Node.js

• Skilled in database management with SQL and NoSQL databases

• Strong problem-solving and analytical skills

• Excellent communication and teamwork abilities
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The first stage of the aptitude test was a written examination. it consisted of multiple-choice questions and problem-solving exercises, the question covered a wide range of topics such as logical reasoning, numerical ability, and verbal comprehension. the time limit was challenging, but I completed most of the questions.

In summary, the coding round was a challenging yet rewarding experience. it tested my programming abilities, problem-solving skills,
and ability to deliver efficient and error-free code within a time constraint. with adequate round preparation, focus, and practice, I navigated the coding round confidently and showcased my technical capabilities.

Q1. Create a regular expression accepting 10-digit numeric characters starting with 1, 2, or 3.
Ans. 
Regular expression for 10-digit numeric characters starting with 1, 2, or 3.
• Use the pattern ^[1-3]\d{9}$ to match the criteria

• The ^ symbol denotes the start of the string

• The [1-3] specifies that the first digit must be 1, 2, or 3

• \d{9} matches exactly 9 numeric digits

• $ indicates the end of the string
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Q2. What do you mean by OOPS?
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OOPS stands for Object-Oriented Programming System. It is a programming paradigm based on the concept of objects.
• OOPS focuses on creating objects that contain data in the form of fields (attributes) and code in the form of procedures (methods).

• Encapsulation, inheritance, and polymorphism are key principles of OOPS.

• Encapsulation refers to the bundling of data and methods that operate on the data into a single unit (obje...read more
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Q3. What are the basic SQL skills?
Ans. 
Basic SQL skills include querying databases, manipulating data, and understanding database structures.
• Writing basic SQL queries to retrieve data from databases

• Understanding and using SQL functions and operators

• Creating and modifying database tables and relationships

• Using SQL to filter, sort, and group data

• Understanding basic SQL syntax and commands
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Q4. What is a join in SQL? What are the types of joins?
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A join in SQL is used to combine rows from two or more tables based on a related column between them.
• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

• INNER JOIN returns rows when there is at least one match in both tables.

• LEFT JOIN returns all rows from the left table and the matched rows from the right table.

• RIGHT JOIN returns all rows from the right table and the matched rows from the left tabl...read more
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Q5. Convert Hours into Seconds.
Ans. 
To convert hours into seconds, multiply the number of hours by 3600.
• Multiply the number of hours by 3600 to get the equivalent seconds.

• For example, 2 hours = 2 * 3600 = 7200 seconds.
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Q1. Interviewer asked me about my technical part and checked my japanese proficiency
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Q1. Basic introduction
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Q1. Related to current my project roles and responsibilities and basic OOPS, .net framework, Abstract and interface, MVC, jQuery, SQL Server
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Q1. Advance concepts in .net, MVC, Scenario based questions, c#, jquery and SQL Server
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Q1. Submit all the docs in portal
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Q1. Tell me about my self, Expectation, When you can join.
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