Data Patterns Technical Assistant Interview Questions and Answers

Program to add a node in binary tree using recursive function.

• Create a function to recursively traverse the tree to find the appropriate position to add the new node.

• Check if the current node is null, if so, create a new node and assign it to the current node.

• If the current node is not null, compare the value of the new node with the current node and move left or right accordingly.

• Repeat the process until the appropria

Kafka Zookeeper plays a crucial role in managing and coordinating Kafka brokers in a distributed system.

• Zookeeper manages configuration information, leader election, and synchronization for Kafka brokers.

• It helps in maintaining the state of the Kafka cluster and ensures fault tolerance.

• Zookeeper stores metadata about Kafka topics, partitions, and replicas.

• It also helps in detecting and recovering from network partition...read more

Design a system monitoring application like Heartbeat in ELK

• Utilize Elasticsearch for storing monitoring data

• Use Logstash for collecting and parsing logs

• Implement Kibana for visualization and monitoring

• Set up Beats for lightweight data shippers

Anodizing is an electrochemical process that increases the thickness of the natural oxide layer on the surface of metal parts.

• Anodizing is commonly used to improve corrosion resistance, increase surface hardness, and provide better adhesion for paint primers and glues.

• The process involves immersing the metal part in an electrolyte solution and passing an electric current through it, which causes oxide to form on the su...read more

Anodizing is an electrochemical process that forms a protective oxide layer on metal surfaces.

• Metal part is immersed in an electrolyte solution

• Electric current is passed through the solution

• Oxidation of the metal surface creates a durable and corrosion-resistant layer

• Commonly used on aluminum for increased durability and aesthetics

Yes, the chemical concentration can change with time due to various factors such as reaction kinetics, temperature, pressure, and presence of catalysts.

• Chemical reactions can lead to changes in concentration over time

• Factors like reaction kinetics, temperature, pressure, and catalysts can influence the rate of change

• For example, in a reaction where A + B -> C, the concentration of A and B will decrease over time while