What are the characteristics of transaction semantics?

• A. Suitable for applications that are concerned about coherence of data
• B. The users of this model are interested in the atomicity property for their transaction
• C. Easy to implement in a single processor system
• D. Write-back enhances access performance

What are non characteristics of session semantics?

• A. Each client obtains a working copy from the server
• B. When file is closed, the modified file is copied to the file server
• C. The burden of coordinating file sharing is ignored by the system
• D. Easy to implement in a single processor system

The file once created can not be changed is called ___________

• A. Immutable file
• B. Mutex file
• C. Mutable file
• D. None of the mentioned

______ of the distributed file system are dispersed among various machines of distributed system.

• A. Clients
• B. Servers
• C. Storage devices
• D. All of the mentioned

_______ is not possible in distributed file system.

• A. File replication
• B. Migration
• C. Client interface
• D. Remote access

Which one of the following hides the location where in the network the file is stored?

• A. Transparent distributed file system
• B. Hidden distributed file system
• C. Escaped distribution file system
• D. Spy distributed file system

In a distributed file system, when a file’s physical storage location changes ___________

• A. File name need to be changed
• B. File name need not to be changed
• C. File’s host name need to be changed
• D. File’s local name need to be changed

In a distributed file system, _______ is mapping between logical and physical objects.

• A. Client interfacing
• B. Naming
• C. Migration
• D. Heterogeneity

In a distributed file system, a file is uniquely identified by ___________

• A. Host name
• B. Local name
• C. The combination of host name and local name
• D. None of the mentioned

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