Operating Systems Chapter 1 Quiz

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Questions and Answers

What are two important design considerations for cache memory?

Power consumption and reusability

Size and replacement policy (correct)

Speed and volatility

Size and access privileges

Which of the following are other terms for kernel mode?

Supervisor mode

System mode

Privileged mode

All of the above (correct)

Which of the following statements about open source operating systems is true?

Solaris is open source.

Source code is freely available. (correct)

All open source operating systems share the same set of goals.

They are always more secure than commercial, closed systems.

Which operating system is not considered open source?

Windows (A) Signup and view all the answers

What type of system provides a file-system interface for clients to create and modify files?

File-server system (D) Signup and view all the answers

What is a custom build of the Linux operating system called?

Distribution (B) Signup and view all the answers

What provides additional services to application developers?

Middleware (A) Signup and view all the answers

Which statement about privileged instructions is false?

They cannot be attempted from user mode. (D) Signup and view all the answers

What is the primary purpose of an operating system?

To create an environment for other programs to function. (D) Signup and view all the answers

Which type of operating system is primarily designed for maximizing resource utilization?

Mainframe operating systems (A) Signup and view all the answers

What is the most common secondary storage device?

Magnetic disks (A) Signup and view all the answers

What characteristic identifies an SMP (Symmetric Multiprocessing) system?

Each processor can execute any task within the operating system. (B) Signup and view all the answers

What mechanism is used to prevent a user program from continuously running without giving control back to the operating system?

A timer (C) Signup and view all the answers

What type of operating system is typically used in embedded computers?

Real-time operating system (B) Signup and view all the answers

What type of network is created by devices using Bluetooth or 802.11 wireless technology for communication over short distances?

Small-area network (SAN) (B) Signup and view all the answers

What distinguishes a clustered system?

Combining multiple CPUs to perform computation. (B) Signup and view all the answers

What characterizes a peer-to-peer system?

Clients and servers are distinct entities. (C) Signup and view all the answers

What is a key difference between a traditional client-server system and a peer-to-peer system?

Peer-to-peer systems eliminate the need for centralized servers. (B) Signup and view all the answers

What is the main focus of protection in a computer system?

Controlling access to resources (D) Signup and view all the answers

Which of the following statements accurately describes mobile computing?

It involves devices that are portable and lightweight. (B) Signup and view all the answers

What characterizes cloud computing?

It delivers services across a network using virtualization. (D) Signup and view all the answers

Which of the following statements is true regarding the operating system kernel?

It is responsible for memory management. (B) Signup and view all the answers

Which statement about interrupts is correct?

They may be triggered by both hardware and software. (C) Signup and view all the answers

What is the processing speed comparison between mobile device processors and desktop PC processors?

Mobile device processors run at slower speeds. (D) Signup and view all the answers

What is true about solid state disks compared to magnetic disks?

They are generally faster than magnetic disks. (D) Signup and view all the answers

Is it accurate to say that a dual-core system requires each core to have its own cache memory?

No, both cores can share a cache. (A) Signup and view all the answers

What are the two modes of operating in a system?

User mode and kernel mode (D) Signup and view all the answers

What is the role of the operating system as a resource allocator?

It manages the allocation of hardware resources to programs (C) Signup and view all the answers

What is the purpose of an interrupt vector?

To provide a fixed table of interrupt-handling routines (B) Signup and view all the answers

Where is a bootstrap program typically stored?

In read-only memory (ROM) (B) Signup and view all the answers

What function do device controllers serve in a computer system?

They manage data transfer between peripheral devices and local storage (A) Signup and view all the answers

What characterizes clustered systems in terms of high availability?

They possess redundancies to take over tasks in case of failure. (D) Signup and view all the answers

What is virtual memory primarily used for?

To execute programs requiring more space than available physical memory. (C) Signup and view all the answers

What is a characteristic of clustered systems that provides high-availability service?

They replicate data storage across multiple nodes (A) Signup and view all the answers

Which mode represents the state when an operating system handles a user application?

User mode (D) Signup and view all the answers

How does a device driver function within an operating system?

It presents a uniform interface for device communication (C) Signup and view all the answers

What is NOT a resource typically managed by the operating system?

User preferences (B) Signup and view all the answers

What does cache coherency ensure in multiprocessor environments?

Multiple caches store the most updated version of data. (D) Signup and view all the answers

Why is main memory unsuitable for permanent program storage?

It is volatile, erasing data with power loss. (B) Signup and view all the answers

What is a significant disadvantage of using a magnetic disk drive over main memory?

Magnetic disk drives are significantly slower. (A) Signup and view all the answers

What does logical memory provide to programmers and applications?

An abstraction that simplifies memory management. (C) Signup and view all the answers

In terms of memory types, what does physical memory refer to?

The actual hardware memory like cache and RAM. (D) Signup and view all the answers

What is the primary function of a compute-server system?

To execute actions requested by clients (B) Signup and view all the answers

Which of the following statements is true about file-server systems?

They provide an interface for file manipulation to clients. (B) Signup and view all the answers

What distinguishes system programs from application programs?

System programs are associated with the operating system. (D) Signup and view all the answers

Why is direct memory access (DMA) considered efficient for I/O operations?

It facilitates easy data transfer without CPU intervention. (D) Signup and view all the answers

How does multi-core processing differ from placing each processor on its own chip?

It allows faster communication between processors on the same chip. (B) Signup and view all the answers

What is the primary difference between UMA and NUMA systems?

RAM access time is the same from any CPU in UMA systems. (B) Signup and view all the answers

What characterizes a circularly linked list?

The last item points back to the first item. (A) Signup and view all the answers

What are the four approximate components of computer systems?

Hardware, operating system, application programs, and users. (B) Signup and view all the answers

Study Notes

Import Settings

Base Settings: Brownstone Default
Highest Answer Letter: D
Multiple Keywords in Same Paragraph: No

Chapter 1 Multiple Choice Questions

Question 1: An operating system is like a government because it creates an environment for other programs to perform useful work. (Answer: B)
Question 2: Operating systems primarily aim to maximize resource utilization. (Answer: C, Mainframe)
Question 3: The most common secondary storage device is a magnetic disk. (Answer: D)
Question 4: A system is considered an SMP-type system if each processor performs all tasks within the operating system. (Answer: C)
Question 5: A timer can prevent a user program from regaining control of the operating system. (Answer: D)
Question 6: Embedded computers usually run on a real-time operating system. (Answer: A)
Question 7: Bluetooth and 802.11 devices create a local-area network. (Answer: A)
Question 8: A clustered system gathers multiple CPUs to perform computational work together. (Answer: A)
Question 9: A property of peer-to-peer systems is that clients and servers are not distinguished. (Answer: A)
Question 10: Two important design issues for cache memory are size and replacement policy. (Answer: B)
Question 11: Kernel mode can also be called supervisor mode, system mode, or privileged mode. (Answer: D)
Question 12: Open-source operating systems often share source code freely available. (Answer: B)
Question 13: Windows is not an open-source operating system. (Answer: A)
Question 14: A file-server system provides a file-system interface for clients to create and modify files. (Answer: B)

Feedback, Difficulty, and Answers

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Correct answers are indicated alongside each question.
Feedback is also included for some questions, providing additional insights and context.

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Description

Test your knowledge with this quiz on Chapter 1 of Operating Systems. It covers key concepts such as resource utilization, types of systems, and storage devices. Perfect for students looking to reinforce their understanding of the material.