OS Distributed File Systems

host ID

host name and identifier

identifier

process ID

local memory

clock

both local memory and clock

none of the mentioned

Directory service

Authorization service

Shadow service

System service

scalability

tolerance

capacity

none of the mentioned

host name

local name

the combination of host name and local name

none of the mentioned

the remaining sites can continue operating

all the sites will stop working

directly connected sites will stop working

none of the mentioned

Bottleneck

Slow response

Deadlock

One request per second

Its users, servers and storage devices are dispersed

Service activity is not carried out across the network

They have single centralized data repository

There are multiple dependent storage devices

transparent distributed file system

hidden distributed file system

escaped distribution file system

spy distributed file system

Resource sharing

Computation speedup

Reliability

Simplicity