Cloud computing means on-demand network access to shared resources. The main benefits of cloud computing is to provide faster time to market, Improved agility of applications. Selling un-used time slice of computing is the earliest implementation of cloud computing. [Exam Tips] : On-demand self-service is an essential characteristic of cloud computing.

IBM MQ provide messaging capabilities such as point-to-point and publish subscribe models to facilitate the flow of information between applications. You can use IBM MQ to enable applications to communicate at different times and in many diverse computing environments.
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IBM App Connect is a powerful all-in-one tool for easily connecting apps, integrating data, building APIs, and acting on events. It can automatically copy and synchronize data between on-premises and cloud-based applications. it can connect any endpoint, map your data, and move data fast. With IBM App Connect, you can reliably access and combine data assets across all your enterprise applications, databases, and systems and expose them as APIs.
IBM API Connect The tools that API Connect service provides will create and manage your APIs with security-rich features and centralized governance and business-level controls by setting varying levels of security, visibility, billing plans, and rate limits. You can use IBM API Connect for IBM Cloud to quickly create APIs for microservices based on Node.js and Java runtimes IBM Event Streams for IBM Cloud is an event-streaming platform based on the Apache Kafka project and incorporates the open-source Strimzi technology.
IBM Event Streams for IBM Cloud is a high-throughput message bus built with Apache Kafka. IBM Event Streams supports Apache Avro schemas, enabling your Kafka applications to use schemas to validate data structures and to encode and decode data. Event Streams provides a REST API to help connect your existing systems to your Event Streams Kafka cluster.

An IBM Cloud security group is a set of IP filter rules that define how to handle incoming (ingress) and outgoing (egress) traffic to both the public and private interfaces of a virtual server instance. The rules that you add to a security group are known as security group rules.