Deadlocks in Operating Systems
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Questions and Answers

Which of the following is NOT considered a resource in a computer system?

  • CPU time
  • Memory space
  • Operating system (correct)
  • I/O devices

What is an instance of a resource type?

  • A process that requires a resource
  • A physical device
  • A request for a resource
  • A specific occurrence of a resource (correct)

Which of the following is an example of a logical resource?

  • Memory space
  • CPU time
  • I/O devices
  • Files (correct)

What is the purpose of an operating system in handling processes and resources?

<p>To allocate resources to processes (D)</p> Signup and view all the answers

Which of the following is NOT a type of physical resource in a computer system?

<p>Semaphores (D)</p> Signup and view all the answers

In a deadlock situation, processes are unable to proceed because they are waiting for?

<p>Resources held by other processes (C)</p> Signup and view all the answers

What is an example of a logical resource?

<p>Monitors (A)</p> Signup and view all the answers

What is an instance of a resource type?

<p>The specific version of the resource (A)</p> Signup and view all the answers

What is a deadlock situation?

<p>When processes are unable to proceed (C)</p> Signup and view all the answers

In a multiprogramming system, multiple processes are executed ___________.

<p>Simultaneously (D)</p> Signup and view all the answers

Flashcards

What is NOT a resource in a computer system?

An operating system is responsible for managing resources and processes, not considered a resource itself. It's the software that orchestrates everything else.

What is an instance of a resource type?

An instance is a specific occurrence of a resource type. It can represent an individual file, a specific printer, or a particular memory address.

What are logical resources? Give an example.

Logical resources are conceptual entities that represent data and information. They exist as abstract concepts within the computer system. Examples include files, folders, and data structures.

Why is the operating system important for processes?

The operating system is responsible for allocating resources to processes. It acts as the central manager, ensuring each process gets what it needs to function.

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What are physical resources? Give an example.

Physical resources are tangible components of a computer system. They are the actual hardware elements that make up the system, like the CPU, memory, storage devices, and input/output devices.

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What is a deadlock situation?

A deadlock situation occurs when two or more processes are blocked indefinitely, each waiting for a resource that is held by another process in the deadlock.

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What is an example of a logical resource?

Monitors are used in operating systems to enforce mutual exclusion and synchronize access to shared resources. They provide a mechanism for controlled access to shared data.

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What is an instance of a resource type?

A specific version of a resource is an instance of a resource type. For example, the latest version of an application or a specific file on your hard drive would be instances.

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Why do processes stop in a deadlock situation?

In a deadlock situation, processes are unable to proceed because they are waiting for resources held by other processes. This creates a cycle of waiting, causing a standstill.

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How are processes executed in a multiprogramming system?

In a multiprogramming system, multiple processes are executed simultaneously. This allows for better utilization of system resources by switching between processes quickly, increasing efficiency.

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