CAP Theorem Quiz (Extended)

Q1. What does CAP stand for in the CAP theorem? Consistency, Accuracy, Performance
Consistency, Availability, Partition tolerance
Centralization, Availability, Performance
Capacity, Availability, Partition tolerance

Q2. Who originally formulated the CAP theorem and in what year? Eric Brewer, 2000
Seth Gilbert, 2002
Nancy Lynch, 1998
Tim Berners-Lee, 1999

Q3. What is another name for the CAP theorem? Gilbert's Theorem
Lynch's Principle
Brewer's Theorem
Distributed Systems Law

Q4. According to the CAP theorem, how many of the three characteristics can a distributed system deliver simultaneously? All three
Only two
Only one
None

Q5. What does 'consistency' mean in the context of the CAP theorem? The system performs consistently fast
All clients see the same data at the same time, regardless of which node they connect to
The system has consistent uptime
Data is stored consistently across time zones

Q6. A database system that prioritizes consistency and partition tolerance at the expense of availability is classified as: CA system
AP system
CP system
CAP system

Q7. In practical distributed systems, why is partition tolerance generally considered mandatory? It's the easiest to implement
Network failures are inevitable in distributed systems
It provides the best performance
It's required by law

Q8. The PACELC theorem extends the CAP theorem by adding which additional consideration? Performance vs. Cost trade-off
Latency vs. Consistency trade-off during normal operations
Security vs. Accessibility trade-off
Scalability vs. Complexity trade-off

Q9. Which of the following best describes the realistic availability approach mentioned in relation to CAP-Consistent systems? CAP-Consistent systems can never be highly available
High availability is measured as a continuum (like 99.99% uptime) rather than binary terms
Only AP systems can achieve high availability
Partition tolerance prevents any form of availability

Q10. In a distributed system following the PC/EL configuration in PACELC space, what choices are made? Partition: Choose availability; Else: Choose latency
Partition: Choose consistency; Else: Choose latency
Partition: Choose consistency; Else: Choose consistency
Partition: Choose latency; Else: Choose consistency

system-design