Exam 10: Management of Network Functions

The biggest limitation of a network operating system (NOS)is ____ in terms of memory,process,device,and file management.

In a distributed system,there is a high level of cooperation and sharing of actions and data maintained by the sites when determining which process should be loaded and where it should be run.

To globally manage the network's entire suite of resources,a DO/S is typically constructed with a replicated kernel operating system.

One advantage of process-based DO/S is that the processes can be assembled to communicate and synchronize with each other to provide a distributed network of resources,with each process knowing the location of its distributed peers.

In a DO/S,the ____ is responsible for process synchronization mechanisms and communication support.

A distributed operating system does not need to deal with the possibility of deadlock caused by circular waits.

A DO/S must keep a global accounting of each network device and its availability,maintain each device's status record and control block,and distribute this information to all sites.

Execute-only access allows users to read the page; however,they are not allowed to modify it.

Location transparency,the essence of cloud computing,is provided by mechanisms and directories that map logical data items to physical locations so that users don't need to be concerned with the physical locations of their files.

An object-based DO/S provides process management through the use of client/server processes synchronized and linked together through messages and ports,also known as channels or pipes.

In a distributed system,there is a high level of cooperation and sharing of actions and data maintained by the sites when determining which process should be loaded and where it should be run; this is accomplished by ____.

A process-based DO/S must synchronize actions across the network.When a process reaches a point at which it needs service from an external source,such as an I/O request,it sends a message searching for the service.While it waits for a response,the processor server puts the process in a ____ state.

The arbitration rule of a system scheduling function is a policy that is used to resolve conflicts between jobs of different priorities.

In a network,the Processor Manager provides the policies and mechanisms to create,delete,abort,name,rename,find,schedule,block,run,and synchronize processes.

In response to the Write command,the File Manager sends a command to the remote server to unlock the specified file.

For each node in a DO/S,the Memory Manager uses a kernel with a ____ algorithm to track the amount of memory that is available.

A job scheduler based on process priorities and durations is an example of ____.

Under a DO/S,resources are allocated based on negotiation and compromise among equally important peer sites in the distributed system.

In process-based DO/S,resources are controlled by servers called ____ that are responsible for accepting requests for service on the individual devices they control,processing each request fairly,providing service to the requestor,and returning to serve others.

To control demands on memory in a DO/S,the Memory Manager handles requests from the Process Manager to allocate and deallocate space based on ____.