COMP212 DSYS - DISTRIBUTED SYSTEMS TEST QUESTIONS AND ANSWERS

COMP212 DSYS - DISTRIBUTED SYSTEMS TEST
QUESTIONS AND ANSWERS

What is a distributed system? - ANSWER A distributed system is a collection
of independent computers that appears as a single coherent system.

What are the goals of a distributed system? (6 answers) - ANSWER • Easily
connect users and resources
• Transparency
• Openness
• Reliability
• Performance
• Scalability

What are the problems with connecting users and resources? (3 answers) -
ANSWER • Security
• Coordination required
• Fairness

What is transparency in a distributed system? - ANSWER Transparency means
to appear to its users as if it were only a single computer system.

What are the different forms of transparency? (8 answers) - ANSWER •
Access
• Location
• Migration
• Relocation
• Replication
• Concurrency
• Failure
• Persistence

What happens in a synchronous network? - ANSWER In a synchronous
network, all processes start in an initial state and repeat synchronously.

What is flooding? - ANSWER Flooding is where a leader-node has a token
(piece of information) and all nodes must learn the token.