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Hi there. In this video, we'll discuss operating system, or OS, hardening and why it's essential to keep the entire network secure. The operating system is the interface between computer hardware and the user. The OS is the first program loaded w...

In this reading, you’ll learn about brute force attacks. You’ll consider how vulnerabilities can be assessed using virtual machines and sandboxes, and learn ways to prevent brute force attacks using a combination of authentication measures. Implementing variou...

idk if this is correct but from my research this is what I've figured out An example TCP dump looks like this:  Timestamp source IP > destination IP.protocol : flags [TCP flags], seq sequence numbers, ack acknowledgement number, win window size, options [TCP...

Earlier, you learned that OS hardening focuses on device safety and uses patch updates, secure configuration, and account access policies.  Now we'll focus on network hardening. Network hardening focuses on network-related security hardening, like por...

This section of the course covers the topic of network hardening and monitoring. Each device, tool, or security strategy put in place by security analysts further protects—or hardens—the network until the network owner is satisfied with the level of security. ...

Network security in the cloud  In recent years, many organizations are using network services in the cloud. So in addition to securing on-premises networks, a security analyst will need to secure cloud networks. In a previous video, you learned th...

I'm Kelsey, I'm a distinguished engineer at Google Cloud. I work on compute platforms and security related topics. When I was starting, the only jobs I had previous, the only jobs I was confident were accessible to me were fast food jobs. I wanted a ...

Great work on learning about security hardening! Let's take a few minutes to wrap up what you've learned. You learned about security hardening and its importance to an organization's infrastructure. First, we discussed how securit...

Wow, we have covered a lot in this course! Let's review everything we've discussed. You learned about networks, network architecture, and the best practices used by security professionals to secure a network against security breaches.  As we bring t...

Hi! Welcome to this course on computing basics for security. My name is Kim, and I work as a Technical Program Manager in security. I grew up with computers and the internet but didn't really consider security as a career opportunity until I saw how ...

As a learner, you can choose to complete one or multiple courses in this program. However, to obtain the Google Cybersecurity Certificate, you must complete all the courses. This reading describes what is required to obtain a certificate and best practices for...

How many times a week do you use a computer? For some of us, the answer might be "a lot"! They are incredible machines that let us do everything from using specialized applications when completing a task at work to sending emails to loved ones in a d...

Hi, I'm Kim. I'm a technical program manager at Google.  I'm currently working in the security, mergers, and acquisitions team. Where I work with other companies that we purchase, and I help them integrate into the Google environment. I've held multip...

You previously explored why operating systems are an important part of how a computer works.  In this reading, you’ll compare some popular operating systems used today. You’ll also focus on the risks of using legacy operating systems. Common operating systems...

Previously, you learned about what operating systems are. Now, let's discuss how they work. In this video, you'll learn what happens with an operating system, or OS, when someone uses a computer for a task. Think about when someon...

Operating systems are a critical component of a computer. They make connections between applications and hardware to allow users to perform tasks. In this reading, you’ll explore this complex process further and consider it using a new analogy and a new exampl...

Now we're ready to discuss a different aspect of your operating system. Not only does the OS interact with other parts of your computer, but it's also responsible for managing the resources of the system. This is a big task that requires a lot of b...

You've explored a lot about operating systems. One more aspect to consider is that operating systems can run on virtual machines. In this reading, you’ll learn about virtual machines and the general concept of virtualization. You’ll explore how virtual machine...

Now that you've learned the inner workings of computers, let's discuss how users and operating systems communicate with each other.  So far, you've learned that a computer has an operating system, hardware, and applications. Remember, the operating sy...

Previously, you explored graphical user interfaces (GUI) and command-line user interfaces (CLI). In this reading, you’ll compare these two interfaces and learn more about how they’re used in cybersecurity.   CLI vs. GUI A graphical user interface (GUI) is a ...