Infinite Computer Solutions Senior Technical Lead Interview Questions and Answers

Scaling Kubernetes pods involves adjusting the number of replicas based on demand.

• Use Kubernetes Horizontal Pod Autoscaler (HPA) to automatically adjust the number of replicas based on CPU or memory usage

• Manually scale pods using kubectl commands like 'kubectl scale deployment --replicas='

• Implement Cluster Autoscaler to automatically adjust the number of nodes in a cluster based on resource usage

Program to find prime numbers from 1 to n

• Iterate from 2 to n and check if each number is prime

• Use a nested loop to check divisibility by numbers less than the current number

• A prime number is only divisible by 1 and itself

Deep copy creates a new copy of an object with all nested objects also copied, while shallow copy creates a new object with references to the original nested objects.

• Deep copy involves recursively copying all nested objects, while shallow copy only copies the top-level object

• Deep copy ensures that changes to the original object do not affect the copied object, while shallow copy may have shared references

• In JavaScript, deep copy can be achieved using JSON.parse(JSON.stringify...read more

Variables in JAVA are passed by value, meaning a copy of the variable's value is passed to a method.

• In JAVA, primitive data types are passed by value, while objects are passed by reference.

• When a primitive data type is passed to a method, a copy of the value is passed, so changes made to the parameter inside the method do not affect the original variable.

• When an object is passed to a method, the reference to the object is passed by value, meaning changes to the object's state...read more

A sample JAVA program to parse and validate mail-id

• Use regular expressions to validate the email format

• Check for the presence of '@' symbol and domain name

• Utilize try-catch blocks for error handling

• Use Java libraries like javax.mail.internet.InternetAddress for validation