Untitled Quiz

A distributed system is a collection of autonomous computing elements that appears to its users as a single coherent system.

A distributed system consists of autonomous computing elements, also referred to as nodes, which can be either hardware devices or software processes. Furthermore, the distributed system must act as a single coherent system to users, meaning that users perceive the system as a whole, and the nodes must collaborate to achieve this coherent behavior.

<p>An overlay network describes how nodes in a distributed system communicate with each other. Each node only interacts with a subset of other nodes—its neighbors—and the set of neighbors can be dynamic or implicitly defined through lookups.</p> Signup and view all the answers

<p>Structured and Unstructured (D)</p> Signup and view all the answers

<p>A coherent system ensures that the collection of nodes within a distributed system functions as a whole, regardless of the individual locations or times involved in user interactions.</p> Signup and view all the answers

<p>All of the above. (D)</p> Signup and view all the answers

<p>Middleware is an essential layer in a distributed system that provides commonly used components and functionalities to applications, making the distributed system operate as a single coherent system. It acts as an intermediary between applications and individual operating systems (OS), providing a unified interface and abstracting away the underlying complexity.</p> Signup and view all the answers

<p>All of the above. (E)</p> Signup and view all the answers

<p>This statement highlights how distributed systems have moved beyond the traditional model of a single, centralized computer to a highly interconnected network where the network itself is the primary resource and computing platform.</p> Signup and view all the answers

<p>All of the above (E)</p> Signup and view all the answers

<p>All of the above (H)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Both A and B are valid reasons. (A)</p> Signup and view all the answers

A collection of independent computing elements that appears to users as a single system.

Individual computing elements (hardware or software) in a distributed system.

Nodes in a distributed system communicate only with their neighbors.

Nodes have predefined relationships (e.g., tree, ring).

Nodes' connections are random.

Users do not need to know the location or distribution of system resources or replicas.

Only a portion of a distributed system experiences a failure.

The operating system of distributed systems; provides common functions and components.

Distributed access to shared components (e.g., files, databases).

Hidden differences in how resources are accessed.

Hiding the physical location of resources.

Hidden movement of resources while still in use.

Hiding the movement of resources or nodes.

Hidden existence of resource replicas.

Users are unaware of resources being accessed/used by multiple users simultaneously.

Hiding resource failure and recovery.

System design allows for interoperability and extension.

System's ability to handle increased load without significant performance degradation.

A single, shared clock used to synchronize nodes in a system.

Inconsistencies in clocks and time perception across different nodes.

Managing the constantly evolving set of nodes actively participating in the system.

The mechanisms to ensure that only authorized components or nodes can access resources.

Delays in communication between nodes due to network transmission times.

Copies of resources stored at separate locations to improve fault tolerance.