VHS Consulting Test Engineer Interview Questions and Answers

Mcqs on javascript,. 1 coding question

Normal apptitude queations were asked in this round

Q1. Questions on javascript Basic of HTML, CSS
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Q1. Spring boot related questions
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Q2. Java related questios
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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
Ans. 
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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There will be 3 coding questions. They are of medium and hard level.

Q1. Sort array consisting 0's 1's and 2's without inbuilt functions
Ans. 
Sort an array of 0's, 1's, and 2's without using inbuilt functions.
• Use three pointers to keep track of the last index of 0's, 1's, and 2's

• Iterate through the array and swap elements based on their value

• Continue until all elements are sorted
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Q1. Os cn related questions
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Q1. Java questions and general hr questions
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Q1. What is a pointer to pointer
Ans. 
A pointer to pointer is a variable that stores the memory address of another pointer variable.
• It is used to create dynamic data structures like linked lists and trees.

• It allows multiple levels of indirection.

• It is denoted by ** in C and C++.

• Example: int **ptr;

• Example: ptr = &p; where p is a pointer variable.
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Q2. Class, object, inheritance, polymorphism,dbms
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