Distributed Systems - Week 0 Quiz Solutions | SwayamSolver

Practice: Week 0: Assignment 0

Distributed Systems · Instructor: Prof. Rajiv Misra

Week 010 Questions

Question 2

According to the "Fallacies of Distributed Computing," which is a false assumption that designers frequently make?

A.The network bandwidth is limited

B.The network topology may change over time

C.The network has non-zero latency

D.The network is reliable

Correct Answer: The network is reliable

Question 1

Which of the following is the most fundamental defining characteristic of a distributed system?

A.Components that communicate solely via message passing and lack a shared global clock

B.Geographically separated components connected via satellites

C.Multiple processors operating on the same physical chassis

D.High fault tolerance guaranteed by hardware redundancy

Correct Answer: Components that communicate solely via message passing and lack a shared global clock

Question 3

In the context of the CAP theorem, which three properties cannot be fully achieved simultaneously in a distributed data store?

A.Availability, Partition tolerance, Performance

B.Consistency, Performance, Scalability

C.Consistency, Availability, Partition tolerance

D.Security, Availability, Consistency

Correct Answer: Consistency, Availability, Partition tolerance

Question 4

What is the primary purpose of middleware in a distributed system?

A.To physically route network packets between data centers

B.To provide a programming abstraction that hides the heterogeneity of the underlying networks and OSs

C.To serve as the primary database for persistent storage across nodes

D.To enforce strict security policies at the hardware level

Correct Answer: To provide a programming abstraction that hides the heterogeneity of the underlying networks and OSs

Question 5

A system doubles its number of nodes and simultaneously doubles its workload, yet the average response time per request remains unchanged. This is an example of:

A.High availability

B.Linear scalability

C.Increased fault tolerance

D.Load balancing

Correct Answer: Linear scalability

Question 6

Which type of transparency hides the failure and subsequent recovery of a component from the end user?

A.Location transparency

B.Migration transparency

C.Failure transparency

D.Replication transparency

Correct Answer: Failure transparency

Question 7

A "partial failure" in a distributed system refers to:

A.The complete shutdown of all nodes in the system

B.A network link that intermittently drops half of the packets

C.A single process experiencing a temporary memory overflow

D.Some components failing independently while others continue to operate correctly

Correct Answer: Some components failing independently while others continue to operate correctly

Question 8

Which architectural model uses a central coordinating entity to assign tasks to and collect results from multiple worker nodes?

A.Master-slave (Master-worker)

B.Peer to peer

C.Event-driven architecture

D.Decentralized gossip protocol

Correct Answer: Master-slave (Master-worker)

Question 9

Which of the following is NOT a primary motivation for building a distributed system?

A.Enabling resource sharing across multiple users

B.Achieving higher performance through parallel execution

C.Guaranteeing zero-latency communication between nodes

D.Improving reliability via redundancy and fault tolerance

Correct Answer: Guaranteeing zero-latency communication between nodes

Q10

Question 10

What does "scalability" specifically refer to in the context of distributed systems?

A.The ability to prevent security breaches as the user base increases

B.The ability to handle growing amounts of work by adding more resources

C.The ability to maintain constant throughput regardless of load changes

D.The ability to perform software updates without restarting the system

Correct Answer: The ability to handle growing amounts of work by adding more resources