OS Distributed File Systems

polling

handshaking

token passing

none of the mentioned

a unique priority number is associated with each active process in system

there is no priority number associated with any process

priority of the processes is not required

none of the mentioned

Suitable for applications that are concerned about coherence of data

The users of this model are interested in the atomicity property for their transaction

Easy to implement in a single processor system

Write-back enhances access performance

Failure of a link

Failure of a site

Loss of message

All of the mentioned

login transparency and access transparency

Files need not contain information about their physical location

No Multiplicity of users

No Multiplicity if files

local name

physical storage location

both local name and physical storage location

none of the mentioned

Local unique timestamp

Remote timestamp

Clock number

All of the mentioned

telnet

http

ftp

rpc

Users are aware of multiplicity of machines

Access is done like local resources

Users are aware of multiplicity of machines

They have multiple zones to access files

Workstation

Gateway

Laptop

All of the mentioned