Volkswagen Group Technology Solution Interview Questions, Process, and Tips

Q1. Questions regarding Route 53, VPC, Security groups, IAM, SAML, EKS
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Q2. K8s questions on microservice deployment on existing cluster, how to secure secrets, calico, services and pod scaling
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Easy level aptitude and coding question was asked

Q1. Reverse a string Sorting algo Preorder traversal for tree
Ans. 
Reverse a string using sorting algorithm and perform preorder traversal for a tree.
• To reverse a string using sorting algorithm, we can convert the string to an array of characters, sort the array in descending order, and then join the characters back together to form the reversed string.

• For preorder traversal of a tree, we visit the root node first, then recursively traverse the left subtree and finally the right subtr
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Q2. 01 knapsack Dfs for graph
Ans. 
Knapsack problem involves maximizing the value of items in a knapsack without exceeding its weight limit. DFS is a graph traversal algorithm.
• Knapsack problem can be solved using dynamic programming approach.

• DFS (Depth First Search) is a graph traversal algorithm that explores as far as possible along each branch before backtracking.

• Example: In a knapsack problem, given items with weights and values, DFS can be used to ...read more
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Q1. Clearing out package and concent for working on different programming language
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Q1. Why String is immutable
Ans. 
String is immutable in Java to ensure security, thread safety, and optimization.
• Immutable strings are thread-safe as they cannot be modified concurrently.

• String pooling allows for memory optimization by reusing existing string objects.

• Immutable strings prevent malicious code from altering sensitive data.

• String immutability simplifies string manipulation and caching implementations.
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Q2. Spring Security
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Q3. Authentication and authorization
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Q4. Java 8 features
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Java , Spring-boot, Hibernate, Microservices