Innominds Software Python Developer Interview Questions, Process, and Tips

Round duration - 60 minutes
Round difficulty - Medium

Technical Interview round with questions on Python and Web Services mainly.

Q1. Can you explain the difference between mutable and immutable objects in Python?
Ans. 
Immutable Objects : These are of in-built types like int, float, bool, string, unicode, tuple. In simple words, an immutable object can’t be changed after it is created.
Mutable Objects : These are of type list, dict, set . Custom classes are generally mutable.
To summarise the difference, mutable objects can change their state or contents and immutable objects can’t change their state or content.
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Q2. What is the difference between SOAP and REST in the context of Web API services?
Ans. 
SOAP stands for Simple Object Access Protocol whereas REST stands for Representational State Transfer.
SOAP is a protocol whereas REST is an architectural pattern.
SOAP uses service interfaces to expose its functionality to client applications while REST uses Uniform Service locators to access to the components on the hardware device.
SOAP needs more bandwidth for its usage whereas REST doesn’t need much bandwidth.
Compari...read more
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Q3. Can you explain method overriding in Python?
Ans. 
Method overriding is an ability of any object-oriented programming language that allows a subclass or child class to provide a specific implementation of a method that is already provided by one of its super-classes or parent classes. When a method in a subclass has the same name, same parameters or signature and same return type(or sub-type) as a method in its super-class, then the method in the subclass is said to ov...read more
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Round duration - 60 minutes
Round difficulty - Easy

Technical Interview round with questions on Python and Django mainly.

Q1. What are the differences between Django and Flask?
Ans. 
Flask provides support for API while Django doesn’t have any support for API.
Flask does not support dynamic HTML pages and Django offers dynamic HTML pages.
Flask is a Python web framework built for rapid development whereas Django is built for easy and simple projects.
Flask offers a diversified working style while Django offers a Monolithic working style.
URL dispatcher of the Flask web framework is a RESTful request on...read more
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Q2. Can you explain the architecture of Django?
Ans. 
Django is based on MVT (Model-View-Template) architecture. MVT is a software design pattern for developing a web application. 
MVT Structure has the following three parts – 

Model: The model is going to act as the interface of your data. It is responsible for maintaining data. It is the logical data structure behind the entire application and is represented by a database (generally relational databases such as ...read more
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Q3. What is the difference between JSON and XML?
Ans. 
1. JSON is JavaScript Object Notation. XML is Extensible markup language
2. JSON is based on JavaScript language. XML is derived from SGML.
3. JSON is a way of representing objects. xml is a markup language and uses tag structure to represent data items.
4. JSON does not provides any support for namespaces. XML supports namespaces.
5. JSON supports array. XML doesn’t supports array.
6. JSON files are very easy to read as co...read more
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