نظم موزعة

What is the definition of a distributed system?

• A single machine with distributed applications
• A collection of autonomous computing elements
• A single system on a large network
• A single cloud environment with multiple VMs

Which feature is characteristic of autonomous nodes in a distributed system?

• They operate in sync with a global clock
• They are independent and self-governed
• They rely on a central node for decisions
• They cannot function without a global clock

What does middleware in a distributed system provide?

• Resource allocation among nodes
• A single interface for resource sharing
• Independent communication between nodes
• A uniform communication protocol

What type of overlay network references randomly selected peers?

• Structured
• Unstructured
• Dynamic
• Implicit

Which is an example of resource sharing in distributed systems?

• Standalone applications
• Shared web hosting
• Local file storage
• Peer-to-peer multimedia streaming

Which type of transparency hides the location of an object?

• Access transparency
• Location transparency
• Relocation transparency
• Migration transparency

What is a key challenge of full transparency in distributed systems?

• Low-cost implementation
• Difficulty hiding network failures
• Complex data management
• Slow data replication

Which computing method involves dividing tasks across multiple processors?

• Grid computing
• Parallel computing
• Cluster computing
• Cloud computing

In grid computing, which layer handles communication protocols?

• Fabric
• Resource
• Connectivity
• Application

Which is a Platform as a Service (PaaS) example?

• Amazon S3
• Microsoft Azure
• Google Docs
• YouTube