BCA Distributed Systems

Explain the client server model used in the World Wide Web as a distributed system.

What is distributed file system? Discuss different forms of transparency in distributed systems. Explain the design issue related to distributed system.

“Distributed system acts as a single coherent system to its end user.” Justify the statement with its features and challenges.

Differentiate between client server and peer to peer architecture in distributed system.

Explain wrapper and interceptor in detail.

What is virtualization? Explain different types of virtualizations with example. Explain the function of middleware in distributed system with suitable diagram.

Define virtualization in the context of distributed systems. Discuss hardware virtualization and OS-level virtualization, comparing their efficiency, scalability, and use cases.

How does RPC middleware work? Explain with a simple example.

Describe transient synchronous communication with suitable diagram.

Describe how unique identifiers help in resource management in a distributed system where multiple processes share resources?

Explain the architecture of the Global Name Service and its role in distributed system.

Write short note (Any two)

a) DNS Query Types

b) Checkpointing

c) Digital Signature

Explain gossip-based coordination. How it is useful in distributed event matching systems?

What do you mean by logical clock? Explain Lamport's Logical clock.

Consider a distributed online banking system with replicated account data. Describe how sequential consistency and read-your-writes consistency would affect a customer performing multiple transactions from different devices.

How can you claim that replication is one of the scaling techniques in distributed system? Explain consistency protocols with suitable diagram.

What is process resilience? Discuss the methods used to make a process resilient in a distributed system.

Describe the working mechanism of distributed commit.

Discuss the challenges of implementing security policies in large-scale distributed systems.

Discuss the different attacks that can target distributed systems and explain how they can be mitigated.