Palo Alto Networks Senior Software Engineer Interview Questions and Answers

NoSQL databases are non-relational databases that store and retrieve data in a non-tabular format.

• Document-oriented databases (MongoDB, Couchbase)

• Key-value stores (Redis, Riak)

• Column-family stores (Cassandra, HBase)

• Graph databases (Neo4j, OrientDB)

Scaling refers to the process of increasing or decreasing the capacity of a system to handle more or less load.

• Vertical Scaling: Adding more resources to a single node

• Horizontal Scaling: Adding more nodes to a system

• Load Balancing: Distributing the load across multiple nodes

• Database Sharding: Splitting a database into smaller parts to distribute the load

• Caching: Storing frequently accessed data in memory for faster acc

OOPs concepts are the principles of object-oriented programming. Function pointers are pointers that point to functions.

• OOPs concepts include encapsulation, inheritance, polymorphism, and abstraction.

• Encapsulation is the process of hiding implementation details and exposing only necessary information.

• Inheritance is the process of creating new classes from existing ones.

• Polymorphism is the ability of objects to take on ...read more