Module 1 - 04-1

Question 1

What does OS stand for?

Answer 1

Operating System

Question 2

Define OS

Answer 2

The interface between the computer hardware and the user

Question 3

Define Hardware

Answer 3

The physical components of a computer

Question 4

Explain the importance of an OS

Answer 4

• They run multiple applications at once, and they also access external devices like printers, keyboards, and mice.
• Operating systems are important is that they help humans and computers communicate with each other.
  Computers communicate in a language called binary, which consists of 0s and 1s.
  The OS provides an interface to bridge this communication gap between the user and the computer, allowing you to interact with the computer in complex ways.
• OS security is also critical for the security of a computer.
  This involves securing files, data access, and user authentication to help protect and prevent against threats such as viruses, worms, and malware.
  You may be responsible for configuring and maintaining the security of a system by managing access.
  You may also be responsible for managing and configuring firewalls, setting security policies, enabling virus protection, and performing auditing, accounting, and logging to detect unusual behavior.

Question 5

Which of the following statements accurately describe operating systems? Select three answers.

• Operating systems allow users to run multiple applications at once.
• Operating systems help humans and computers communicate with each other.
• Operating systems consist of physical components.
• Maintaining the security of an operating system is critical for the security of a computer.

Answer 5

• Operating systems allow users to run multiple applications at once.
• Operating systems help humans and computers communicate with each other.
• Maintaining the security of an operating system is critical for the security of a computer.

Operating systems help humans and computers communicate and allow users to run multiple applications at once. Maintaining the security of an operating system is also critical for the security of a computer.

Question 6

What operating systems are useful to know in the security industry (6)?

Answer 6

• Windows
• macOS®
• Linux
• ChromeOS
• Android
• iOS

Question 7

What are two common operating systems?

Answer 7

• Windows
• macOS

The Windows operating system was introduced in 1985, and macOS was introduced in 1984.
Both operating systems are used in personal and enterprise computers.

Windows is a closed-source operating system, which means the source code is not shared freely with the public.

macOS is partially open source. It has some open-source components, such as macOS’s kernel. macOS also has some closed-source components.

Question 8

Explain Linux

Answer 8

Linux is a completely open-source operating system, which means that anyone can access Linux and its source code.
The open-source nature of Linux allows developers in the Linux community to collaborate.
Linux is particularly important to the security industry.
There are some distributions that are specifically designed for security.

Question 9

Explain ChromeOS

Answer 9

It’s partially open source and is derived from Chromium OS, which is completely open source.
ChromeOS is frequently used in the education field.

Question 10

Explain Android and iOS

Answer 10

Android and iOS are both mobile operating systems.
Mobile operating systems are typically used in mobile devices, such as phones, tablets, and watches.
Android is open source, and iOS is partially open source.

Question 11

Define Legacy Operating System

Answer 11

An operating system that is outdated but still being used.

Some organizations continue to use legacy operating systems because software they rely on is not compatible with newer operating systems.
This can be more common in industries that use a lot of equipment that requires embedded software—software that’s placed inside components of the equipment.

Legacy operating systems can be vulnerable to security issues because they’re no longer supported or updated. This means that legacy operating systems might be vulnerable to new threats.

Question 12

What is an operating system?

• The physical components of a computer
• A computer, smartphone, or tablet
• The interface between the computer hardware and the user
• A program for sending email

Answer 12

The interface between the computer hardware and the user

An operating system is the interface between computer hardware and the user.

Question 13

Which of the following are operating systems? Select all that apply.

• Smartphones
• Windows
• Linux
• Android

Answer 13

• Windows
• Linux
• Android

Android, Linux, and Windows are operating systems. Operating systems are interfaces between computer hardware and the user.

Question 14

Which of the following statements correctly describe operating systems? Select all that apply.

• Operating systems are able to run many applications at once.
• Operating systems help people interact with computers.
• Computers run efficiently because of operating systems.
• Operating systems are the physical components of a computer.

Answer 14

• Operating systems are able to run many applications at once.
• Operating systems help people interact with computers.
• Computers run efficiently because of operating systems.

Operating systems help people interact with computers, and computers run efficiently because of operating systems. Operating systems are able to run many applications at once.

Question 15

Computers communicate in a language called binary, which consists of 0s and 1s.

• True
• False

Answer 15

True

Computers communicate in a language called binary, which consists of 0s and 1s.