DIS day 2 start

Hadoop is a distributed...

• file system

• control system

• messaging protocol

The components that make up a distributed system can be heterogeneous.

• True

• False

WhatsApp uses which messaging protocol?

• AMQP

• RabbitMQ

• XMPP

Very often used as the message format in a distributed system?

• PDF

• JSON

• TXT

Elasticity in distributed systems refers to the ability of a system to:

• Handle a large amount of data traffic without degrading performance.

• Expand or contract its resources based on the current demand

• Replicate data across multiple nodes to improve reliability.

SOA (Service-Oriented Architecture) is a software architecture style that:

• Encourages the use of monolithic applications.

• Requires that all services are implemented in the same programming language.

• Emphasises the use of loosely coupled, independent services that can be easily reused

• Is based on the use of a single, central database for all services.

Grid computing is a type of distributed computing that:

• Uses a network of computers to solve complex mathematical problems.

• Distributes computing tasks across a network of geographically dispersed computers.

• Uses parallel processing to speed up the execution of a single task on a single computer.

• Provides a centralised storage for all the data used by a group of computers.

Edge computing is a computing model in which:

• All data processing and storage is performed on a centralised server.

• Data processing and storage is distributed across multiple servers in a data centre.

• Data processing and storage is performed on devices located at the network edge.

• Data processing and storage is performed in the cloud.

Systems are distributed for various reasons, including:

• Improved performance by distributing the workload across multiple computers.

• Increased fault tolerance by replicating data and services across multiple nodes.

• Scalability by adding more nodes to the system to handle increased demand.

• All of these.

Apache Kafka is open source.

• True

• False