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Operating System Chapter 3: Process Concepts

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Operating System Chapter 3: Process Concepts

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Questions and Answers

What is the physical implementation of a communication link?

Logical: Direct or indirect

Shared memory

Hardware bus and network (correct)

Automatic or explicit buffering

In direct communication, how do processes name each other?

Through a mailbox

Implicitly

Through a network

Explicitly (correct)

What is the characteristic of a link in direct communication?

Links are established manually

A link may be associated with several communication links

A link is associated with exactly one pair of communicating processes (correct)

A link is associated with many processes

In indirect communication, what is the role of a mailbox?

To direct and receive messages Signup and view all the answers

What is the operation to create a new mailbox in indirect communication?

create a new mailbox (port) Signup and view all the answers

What is the property of a link in indirect communication?

A link may be associated with many processes Signup and view all the answers

How many communication links can exist between each pair of processes in indirect communication?

Several Signup and view all the answers

What happens when a process sends a message to a mailbox shared by multiple processes?

The message is received by all processes sharing the mailbox Signup and view all the answers

In indirect communication, who gets the message when a process sends a message to a mailbox shared by multiple processes?

All processes sharing the mailbox Signup and view all the answers

What is the role of a mailbox in indirect communication?

To share messages between processes Signup and view all the answers