OS Distributed File Systems
The capability of a system to adapt the increased service load is called ___________
scalability
tolerance
capacity
none of the mentioned
scalability
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There is no need to establish and terminate a connection through open and close operation in ___________A. stateless file service
B. stateful file service
C. both stateless and stateful file service
D. none of the mentioned
Header are ______ when data packet moves from upper to the lower layers?
A. Modified
B. Removed
C. Added
D. All of the mentioned
According to the ring algorithm, links between processes are ____________
A. bidirectional
B. unidirectional
C. both bidirectional and unidirectional
D. none of the mentioned
What are the disadvantages of majority protocol?
A. Complicated implementation
B. Deadlock cannot occur easily
C. Bottleneck
D. All of the mentioned
Which routing technique is used in a distributed system?
A. fixed routing
B. virtual routing
C. dynamic routing
D. all of the mentioned
Implementation of a stateless file server must not follow?
A. Idempotency requirement
B. Encryption of keys
C. File locking mechanism
D. Cache consistency
What is the coherency of replicated data?
A. All replicas are identical at all times
B. Replicas are perceived as identical only at some points in time
C. Users always read the most recent data in the replicas
D. All of the mentioned
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