Azamara Club Cruises Software Developer Interview Questions and Answers

Microservice is a software architecture pattern where an application is built as a collection of small, independent services.

• Microservices are independently deployable and scalable.

• Each microservice performs a specific business function.

• Communication between microservices is usually done through APIs.

• Microservices can be written in different programming languages and use different data storage technologies.

• Examples of ...read more

A Consumer Group is a group of consumers that collectively consume messages from one or more topics.

• Consumer Groups allow for parallel processing of messages from a topic

• Each consumer group maintains its own offset for each partition of a topic

• Multiple consumer groups can consume messages from the same topic

• Consumer Groups are commonly used in Apache Kafka

No, Kafka relies on ZooKeeper for cluster coordination and management.

• ZooKeeper is used for leader election, configuration management, and synchronization in Kafka clusters.

• Kafka brokers register themselves in ZooKeeper and use it to discover other brokers and partitions.

• Without ZooKeeper, Kafka cannot function as a distributed system.

• However, Kafka can be run in standalone mode without ZooKeeper for development and te

ZooKeeper is a distributed coordination service for managing configuration, synchronization, and naming.

• ZooKeeper provides a hierarchical namespace for distributed systems.

• It is used for maintaining configuration information, naming, providing distributed synchronization, and group services.

• ZooKeeper is used in Apache Hadoop, Apache Kafka, and Apache Storm.

• It uses a consensus protocol called ZAB (ZooKeeper Atomic Broad...read more

Replications ensure fault tolerance and high availability of data in Kafka.

• Replications provide redundancy and ensure that data is not lost in case of node failures.

• They also improve read performance by allowing consumers to read from multiple replicas.

• Replications can be configured to have different levels of consistency guarantees.

• For example, a replication factor of 3 ensures that data is stored on 3 different nodes...read more

Web services are software systems designed to support interoperable machine-to-machine interaction over a network.

• Web services allow different applications to communicate with each other over the internet.

• They use standardized protocols like HTTP, XML, SOAP, and REST.

• Web services can be used for a variety of purposes, such as sharing data between different systems or integrating different applications.

• Examples of web s...read more