SLR4: Scheduling in Operating Systems

Amelia is organizing a school event with multiple activities. What is the primary purpose of scheduling these activities?

• To increase the speed of the event

• To manage which activities to execute next and the length of time they can execute

• To reduce the power consumption of the event

• To enhance the graphics performance of the event

In a school cafeteria, what does the term "ready queue" refer to?

• A list of students who have finished eating

• A queue of students waiting to be served

• A queue of students who have been sent to detention

• A list of students who have left the cafeteria

In a cafeteria, students are served lunch in the order they arrive. Which scheduling algorithm does this scenario represent?

• Shortest Job First (SJF)

• Round Robin (RR)

• First Come First Serve (FCFS)

• Shortest Remaining Time (SRT)

In a bakery, what is a key characteristic of the Shortest Job First (SJF) scheduling algorithm when deciding the order of baking different types of bread?

• It requires knowledge of how long each type of bread will take to bake

• It gives each type of bread a fixed amount of baking time

• It prioritises baking based on the order the bread types were placed on the counter

• It allows the baking process to be interrupted by higher priority bread types

In a classroom setting, Amelia, Chloe, and Anaya are taking turns to present their projects. What does "time slice" refer to in this context?

• The total time a student takes to complete their presentation

• The time a student waits for their turn to present

• The fixed amount of time a student is allowed to present before the next student takes over

• The time taken to switch between student presentations

In a classroom, Alexander, Sophie, and Neha are working on a group project. They decide to use a scheduling algorithm to manage their tasks. Which scheduling algorithm is known as a preemptive algorithm?

• First Come First Serve (FCFS)

• Shortest Job First (SJF)

• Round Robin (RR)

• Shortest Remaining Time (SRT)

In a school project, if Scarlett is working on a task and Neha, who has a more urgent task, arrives, what happens to Scarlett's task according to the Shortest Remaining Time (SRT) algorithm?

• Scarlett continues to work on her task until completion

• Scarlett's task is suspended and moved to the back of the queue

• Scarlett's task is terminated immediately

• Scarlett's task is suspended and Neha's task is executed

Freya is working on her computer and notices that her application is not responding. What could be the reason for this process blocking?

• When a process is terminated due to an error

• When a process is waiting for data from a slow input/output device

• When a process is completed and removed from the system

• When a process is given more CPU time than allocated

In a multi-user environment like a university computer lab, why is scheduling important for students like Benjamin, Mia, and Poppy?

• To ensure all users have equal access to the CPU

• To increase the speed of the network

• To reduce the number of processes in the system

• To enhance the security of the system

In a school cafeteria, students Evie, Isabelle, and Eesha are waiting in line to get their lunch. The cafeteria staff uses a system where students can move between different lines based on how quickly they need their food. What is the main advantage of this system?

• It uses a single line for all students

• It allows students to be shifted between lines based on their needs

• It prioritises students based on their arrival time

• It gives each student an equal amount of time to get their lunch