Casol Systems Pvt Ltd., Application Software Engineer Interview Questions and Answers for Experienced

There will be 5 rounds

All the round were mainly focused on the leadership priciples and technical skills
Each round will be carried for 1hr
You should be proefficeint with AWS and devops concepts like CI/CD

This round consist of 2 question mainly focused on DSA concepts like Array and Strings

Here also you will be asked to solve 2 DSA questions form medium to hard level

Q1. Your work-experience and projects
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Q2. Questions based on your project , mainly to check the leaderships principles
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Q1. Boxing Unboxing
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Q2. Abstract class and interface
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Q1. COBOL, DB2 - Restart logic, Cursor life cycle
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Q1. About primary keys (how columns can be accommodated in a single primary key)
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Q2. Types of Constructors
Ans. 
Constructors are special methods used to initialize objects in a class.
• Constructors have the same name as the class.

• Types of constructors include default, parameterized, copy, and static constructors.

• Example: public class Person { public Person() { } }
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Q1. How to create invoice as soon as delivery is completed with PGI
Ans. 
Create invoice automatically after delivery completion with PGI
• Set up automatic invoice creation in the system

• Configure the system to trigger invoice generation upon completion of delivery with PGI

• Ensure all necessary information is captured during delivery process for accurate invoicing
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Q1. What is sql and it’s subtype
Ans. 
SQL is a programming language used for managing and manipulating relational databases.
• SQL stands for Structured Query Language

• It is used to communicate with databases to retrieve, insert, update, and delete data

• Some subtypes of SQL include MySQL, PostgreSQL, Oracle SQL, and Microsoft SQL Server
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Q2. What is sed command and find
Ans. 
sed command is a stream editor for filtering and transforming text, while find command is used to search for files in a directory hierarchy.
• sed command is used to perform text transformations on an input stream or file

• find command is used to search for files in a directory hierarchy based on various criteria

• sed command can be used to replace text, delete lines, or perform other text manipulations

• find command can search...read more
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Q3. What is different between PK and FK
Ans. 
PK is Primary Key which uniquely identifies a record in a table, while FK is Foreign Key which establishes a relationship between two tables.
• PK ensures uniqueness of records in a table

• FK establishes a relationship between tables

• PK is used to enforce entity integrity, while FK is used to enforce referential integrity
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Q4. What is she’ll scraptiing
Ans. 
Shell scraping is the process of extracting data from websites using automated tools or scripts.
• Shell scraping involves writing scripts to automate the process of extracting data from websites

• Tools like BeautifulSoup in Python or Scrapy can be used for shell scraping

• Shell scraping is commonly used for web scraping and data mining purposes
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Q5. What is uptime command in Linux
Ans. 
The uptime command in Linux displays the current time, how long the system has been running, and the number of users currently logged in.
• Displays the current time

• Shows how long the system has been running

• Indicates the number of users currently logged in
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Q6. Why are switching the job
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Q1. ….aaaaddddddhhjjjghhh
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Maths general knowledge

Q1. Operating system,network layer,internet surfing
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Q1. Technical aspects, knowledge on erp,database
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Q1. Salary discussion
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