Odisha Computer Application Centre (OCAC) Interview Questions and Answers

Q1. Java core and spring questions
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Q2. How would you find an element from a list
Ans. 
Use a loop to iterate through the list and compare each element with the target element
• Iterate through the list using a loop

• Compare each element with the target element

• Return the element if found, otherwise return null
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Q1. Basic C++ questions: initialiser list and applications
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Q2. Questions on vector implementation
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Q3. Question on linux file system
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Q1. Design a logger class
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A logger class to handle logging messages in an application
• Create a Logger class with methods like logInfo, logError, logWarning, etc.

• Use a file or database to store the log messages

• Include timestamp and severity level in each log message

• Implement log rotation to manage log file size
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Q2. What is RAII, rule of 3, 5. What is smart pointers and coding questions based on string
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RAII is a resource management technique in C++. Rule of 3/5 refers to special member functions. Smart pointers are objects that manage memory automatically.
• RAII stands for Resource Acquisition Is Initialization, a C++ programming technique where resource management is tied to object lifetime.

• Rule of 3 states that if a class defines a custom destructor, copy constructor, or copy assignment operator, it should define all...read more
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Topics:
Python, Django, MySQL, Automation, Technical questions

Q1. Topics: Python, Django, MySQL, Automation, Technical questions
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Q2. Explain Django Architecture
Ans. 
Django follows Model-View-Controller (MVC) architectural pattern.
• Django has a high-level architecture that follows the Model-View-Controller (MVC) architectural pattern.

• The Model layer represents the database schema and business logic.

• The View layer is responsible for rendering the templates and presenting the data to the user.

• The Controller layer handles the user's input and interacts with the Model and View layers.

• Dj...read more
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Q3. Difference between XML and JSON
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XML is a markup language while JSON is a lightweight data interchange format.
• XML uses tags to define elements while JSON uses key-value pairs.

• XML is more verbose and complex than JSON.

• JSON is easier to read and parse than XML.

• XML supports namespaces and validation while JSON does not.

• XML is widely used in web services and document exchange while JSON is preferred for data exchange between applications.
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Q1. Explain process for SDE
Ans. 
The process for Software Development Engineer involves planning, designing, coding, testing, and deploying software solutions.
• Gather requirements from stakeholders

• Create a design based on requirements

• Write code to implement the design

• Test the software for bugs and issues

• Deploy the software for users to use

• Iterate on feedback and make improvements
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