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Introduction to Distributed Systems: Replication and Transparency

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Questions and Answers

What is the main purpose of migration transparency in distributed systems?

To promote tolerance to failures
To maintain coherence of resources despite location changes (correct)
To allow users to move locations
To provide faster access to local data

What is the primary goal of replication in distributed systems?

To increase system performance by dividing tasks
To prioritize user access to shared resources
To hide the complexity of replication from users (correct)
To make system resources more accessible to users

What is the main characteristic of concurrency in distributed systems?

Cooperative access to shared resources
Independent entities working autonomously (correct)
Competitive access to shared resources is prohibited
Sequential access to shared resources

What is a key advantage of distributed systems in terms of resource access?

Access to resources regardless of location changes (B) Signup and view all the answers

What is relocation transparency in the context of distributed systems?

A special case of migration transparency (A) Signup and view all the answers

What is one benefit of replication in distributed systems?

Faster access to local data (D) Signup and view all the answers

What is a key characteristic of distributed systems?

Ability to maintain coherence despite location changes (D) Signup and view all the answers

How do distributed systems typically manage concurrent access to shared resources?

By defining access policies governing concurrent sharing (C) Signup and view all the answers

What is the primary benefit of replication in distributed systems?

Increased fault tolerance and system availability (A) Signup and view all the answers

What is the primary goal of migration transparency in distributed systems?

To maintain accessibility and functionality of resources (D) Signup and view all the answers

What is the goal of distributed systems in terms of concurrency?

To hide concurrency from users (A) Signup and view all the answers

What is the primary advantage of transparency in distributed systems?

It hides the complexity of replication from users (A) Signup and view all the answers

What is the primary goal of distributed systems in terms of failure?

To exploit distribution to reduce the impact of partial failures on the overall system (B) Signup and view all the answers

What is the challenge in distinguishing between a dead resource and a very slow one?

Determining the cause of silence from a resource (C) Signup and view all the answers

Why is it not always desirable to hide distribution in a distributed system?

Because users may need to be aware of location-dependent factors (A) Signup and view all the answers

What is the trade-off involved in deciding the degree of transparency in a distributed system?

Between transparency and information (B) Signup and view all the answers

What is the significance of location-awareness in a distributed system?

It is an important feature for certain applications, such as file downloading (B) Signup and view all the answers

What is the motivation for hiding failures in a distributed system?

To minimize the impact of partial failures on the overall system (D) Signup and view all the answers

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