Coditas Technologies Software Developer Intern Interview Questions and Answers

My topic was - "Do women make good managers?"
There was a google meet having a total of 20 people.
5 groups were made of 4 people each.
Each group were given different topic and every member was given 2 minutes to speak on the topic.

Good thing about this GD round was everyone was given chance to speak individually.
Finally I got selected in this round.

Q1. Suppose you want to add the link to your Linkedin account in a website, and you have to do it by clicking on the logo of linkedin in the website, then how can you do it? Which HTML tag is used to do it?
Ans. 
To add a link to your Linkedin account in a website by clicking on the logo, use the <a> tag with the href attribute set to your Linkedin profile URL.
• Use the <a> tag with the href attribute set to your Linkedin profile URL

• Insert the Linkedin logo image inside the <a> tag as the clickable element

• Example: <a href='https://www.linkedin.com/in/yourprofile'><img src='linkedin_logo.png' alt='Linked...read more
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Q2. Difference between div and span
Ans. 
div is a block-level element while span is an inline element in HTML.
• div is used to group block-level elements and create sections on a webpage.

• span is used to style inline elements or group text within a block-level element.

• div elements create a line break before and after the element, while span does not.
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Q3. - What is JDBC in java? - What is JVM and the use of it? - We write "public static void main" in java.... will it work if we write "static public void main"? If yes, then why, what is the reason that it wo...read more
Ans. 
JDBC is a Java API for connecting and executing queries on a database.
• JDBC stands for Java Database Connectivity.

• It provides a set of classes and interfaces to interact with databases.

• JDBC allows developers to write database-independent code.

• It supports various database operations like connecting, querying, updating, and deleting data.

• JDBC drivers are used to establish a connection between Java application and database...read more
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Q4. One major difference between OOPs concept of C++ and OOPs concept of java
Ans. 
C++ supports multiple inheritance while Java supports single inheritance.
• C++ allows a class to inherit from multiple classes, while Java only allows a class to inherit from a single class.

• In C++, a class can have multiple parent classes, resulting in a complex class hierarchy.

• Java enforces single inheritance to avoid the diamond problem and maintain simplicity.

• For example, in C++, a class can inherit from both a 'Vehic...read more
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Q5. Types of databases
Ans. 
Types of databases include relational, NoSQL, object-oriented, and graph databases.
• Relational databases store data in tables with predefined schemas, using SQL for querying (e.g. MySQL, Oracle)

• NoSQL databases are schema-less and provide flexible data models (e.g. MongoDB, Cassandra)

• Object-oriented databases store objects as they are, with support for inheritance and encapsulation (e.g. db4o)

• Graph databases use nodes an...read more
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Q6. Difference between SQL based database and NoSQL based databases
Ans. 
SQL databases are structured and use a fixed schema, while NoSQL databases are unstructured and have a flexible schema.
• SQL databases use structured query language for defining and manipulating the data.

• NoSQL databases use various data models like key-value, document, columnar, or graph.

• SQL databases are suitable for complex queries and transactions.

• NoSQL databases are horizontally scalable and provide high performance ...read more
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Q7. If you are given a task and you have to decide which type of database will be best for this task, then how will you decide that?
Ans. 
The choice of database depends on factors like data structure, scalability, performance, and query requirements.
• Consider the data structure and relationships between entities.

• Evaluate the scalability requirements of the task.

• Analyze the performance needs, including read and write operations.

• Assess the query requirements, such as complex joins or aggregations.

• Examples: relational databases for structured data, NoSQL for...read more
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Q8. Examples of relational and non-relational databases
Ans. 
Relational databases store data in tables with predefined relationships. Non-relational databases store data in flexible, schema-less formats.
• Relational databases: MySQL, Oracle, SQL Server

• Non-relational databases: MongoDB, Cassandra, Redis

• Relational databases use structured query language (SQL) for data manipulation

• Non-relational databases provide high scalability and flexibility

• Relational databases are suitable for c...read more
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Q9. Given a string = "as145egs14ghs2ghe7896", add the numbers present in the string, the consecutive numbers should be taken as a complete one number. i.e. you have to print the result of 145+14+2+7896 = ?
Ans. 
The task is to add the consecutive numbers present in a given string.
• Iterate through the string character by character

• Check if the current character is a digit

• If it is a digit, continue iterating until a non-digit character is encountered

• Convert the consecutive digits into a number and add it to the sum

• Repeat the process until all characters are processed

• Return the sum
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Aptitude was Easy level.
the apti paper had 60 questions in 60 minutes.

My topic was placement scenarios in India.
everyone was given 2-3 minutes to express their views.

Q1. This was T1 this was based on my resume and simple coding quetions
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Q1. T2 this was the managerial Round they had given me Coding question of alphanumeric characters. and had asked around 10-15 questions on sql such as joins and ACID transaction
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