Week 4 Synchronisation

Week 4 Synchronisation
10問 • 11ヶ月前
  • ユーザ名非公開
  • 通報

    問題一覧

  • 1

    Which of the following best describes "Mutual Exclusion" (ME) in the context of thread synchronization?

    A mechanism ensuring no thread can enter a critical section while another thread is already inside its own critical section.

  • 2

    Which of these is NOT an example of a general kind of synchronization mentioned in the lecture, beyond mutual exclusion?

    Round-robin scheduling for CPU allocation.

  • 3

    Dijkstra's semaphores support which two primary operations?

    P(S) and V(S)

  • 4

    If a semaphore S is initialized to 1 and used for mutual exclusion, what happens when a thread executes P(S) to enter a critical section?

    The semaphore value decreases, but not below zero, allowing the thread to potentially proceed if S was 1.

  • 5

    What is the fundamental definition of a "Resource Deadlock"?

    A state where a set of threads is waiting on resources held by other threads within the same set, leading to indefinite waiting.

  • 6

    Which of the following conditions is indicative of a deadlock when analyzing a Resource Allocation Graph?

    The graph contains a cycle.

  • 7

    In the context of "Deadlock Detection and Recovery," what is the basic idea of the recovery scheme?

    To kill processes until the deadlock cycle is eliminated.

  • 8

    What is the main goal of "Deadlock Avoidance"?

    To keep the system "safe" by preventing entry into "unsafe" states that may lead to deadlock.

  • 9

    The Banker's Algorithm is an example of which deadlock strategy?

    Deadlock Avoidance.

  • 10

    What information does the Banker's Algorithm require from all processes?

    The maximum number of resource units they may request.

  • 1.1: Software life cycle

    1.1: Software life cycle

    ユーザ名非公開 · 17問 · 2年前

    1.1: Software life cycle

    1.1: Software life cycle

    17問 • 2年前
    ユーザ名非公開

    Intro to computing - Lecture 1

    Intro to computing - Lecture 1

    ユーザ名非公開 · 32問 · 2年前

    Intro to computing - Lecture 1

    Intro to computing - Lecture 1

    32問 • 2年前
    ユーザ名非公開

    Intro to Comp - Lecture 4

    Intro to Comp - Lecture 4

    ユーザ名非公開 · 34問 · 2年前

    Intro to Comp - Lecture 4

    Intro to Comp - Lecture 4

    34問 • 2年前
    ユーザ名非公開

    Chapter 5

    Chapter 5

    ユーザ名非公開 · 7問 · 2年前

    Chapter 5

    Chapter 5

    7問 • 2年前
    ユーザ名非公開

    Intro to comp - Lecture 3

    Intro to comp - Lecture 3

    ユーザ名非公開 · 24問 · 2年前

    Intro to comp - Lecture 3

    Intro to comp - Lecture 3

    24問 • 2年前
    ユーザ名非公開

    Intro to Comp - Lecture 2

    Intro to Comp - Lecture 2

    ユーザ名非公開 · 28問 · 2年前

    Intro to Comp - Lecture 2

    Intro to Comp - Lecture 2

    28問 • 2年前
    ユーザ名非公開

    Quiz 2

    Quiz 2

    ユーザ名非公開 · 7問 · 2年前

    Quiz 2

    Quiz 2

    7問 • 2年前
    ユーザ名非公開

    1.2: Software Engineering Methodologies

    1.2: Software Engineering Methodologies

    ユーザ名非公開 · 20問 · 2年前

    1.2: Software Engineering Methodologies

    1.2: Software Engineering Methodologies

    20問 • 2年前
    ユーザ名非公開

    2.2: Relational Model and ER Model

    2.2: Relational Model and ER Model

    ユーザ名非公開 · 19問 · 2年前

    2.2: Relational Model and ER Model

    2.2: Relational Model and ER Model

    19問 • 2年前
    ユーザ名非公開

    2.3: Converting ER Model to Relational model

    2.3: Converting ER Model to Relational model

    ユーザ名非公開 · 5問 · 2年前

    2.3: Converting ER Model to Relational model

    2.3: Converting ER Model to Relational model

    5問 • 2年前
    ユーザ名非公開

    Quiz 1

    Quiz 1

    ユーザ名非公開 · 8問 · 2年前

    Quiz 1

    Quiz 1

    8問 • 2年前
    ユーザ名非公開

    Week 2 Concurrency

    Week 2 Concurrency

    ユーザ名非公開 · 10問 · 11ヶ月前

    Week 2 Concurrency

    Week 2 Concurrency

    10問 • 11ヶ月前
    ユーザ名非公開

    Week 3 Mutual Exclusion

    Week 3 Mutual Exclusion

    ユーザ名非公開 · 3回閲覧 · 12問 · 11ヶ月前

    Week 3 Mutual Exclusion

    Week 3 Mutual Exclusion

    3回閲覧 • 12問 • 11ヶ月前
    ユーザ名非公開

    Week 5 Processes and scheduling

    Week 5 Processes and scheduling

    ユーザ名非公開 · 22問 · 11ヶ月前

    Week 5 Processes and scheduling

    Week 5 Processes and scheduling

    22問 • 11ヶ月前
    ユーザ名非公開

    Week 6 Interprocess Communication

    Week 6 Interprocess Communication

    ユーザ名非公開 · 22問 · 11ヶ月前

    Week 6 Interprocess Communication

    Week 6 Interprocess Communication

    22問 • 11ヶ月前
    ユーザ名非公開

    Week 7 File system

    Week 7 File system

    ユーザ名非公開 · 13問 · 11ヶ月前

    Week 7 File system

    Week 7 File system

    13問 • 11ヶ月前
    ユーザ名非公開

    Week 8 Virtual Memory

    Week 8 Virtual Memory

    ユーザ名非公開 · 22問 · 11ヶ月前

    Week 8 Virtual Memory

    Week 8 Virtual Memory

    22問 • 11ヶ月前
    ユーザ名非公開

    Week 9 Architectures

    Week 9 Architectures

    ユーザ名非公開 · 10問 · 11ヶ月前

    Week 9 Architectures

    Week 9 Architectures

    10問 • 11ヶ月前
    ユーザ名非公開

    BigO scenario qns

    BigO scenario qns

    ユーザ名非公開 · 8問 · 9ヶ月前

    BigO scenario qns

    BigO scenario qns

    8問 • 9ヶ月前
    ユーザ名非公開

    問題一覧

  • 1

    Which of the following best describes "Mutual Exclusion" (ME) in the context of thread synchronization?

    A mechanism ensuring no thread can enter a critical section while another thread is already inside its own critical section.

  • 2

    Which of these is NOT an example of a general kind of synchronization mentioned in the lecture, beyond mutual exclusion?

    Round-robin scheduling for CPU allocation.

  • 3

    Dijkstra's semaphores support which two primary operations?

    P(S) and V(S)

  • 4

    If a semaphore S is initialized to 1 and used for mutual exclusion, what happens when a thread executes P(S) to enter a critical section?

    The semaphore value decreases, but not below zero, allowing the thread to potentially proceed if S was 1.

  • 5

    What is the fundamental definition of a "Resource Deadlock"?

    A state where a set of threads is waiting on resources held by other threads within the same set, leading to indefinite waiting.

  • 6

    Which of the following conditions is indicative of a deadlock when analyzing a Resource Allocation Graph?

    The graph contains a cycle.

  • 7

    In the context of "Deadlock Detection and Recovery," what is the basic idea of the recovery scheme?

    To kill processes until the deadlock cycle is eliminated.

  • 8

    What is the main goal of "Deadlock Avoidance"?

    To keep the system "safe" by preventing entry into "unsafe" states that may lead to deadlock.

  • 9

    The Banker's Algorithm is an example of which deadlock strategy?

    Deadlock Avoidance.

  • 10

    What information does the Banker's Algorithm require from all processes?

    The maximum number of resource units they may request.