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Certified in Risk and Information Systems Control (CRISC)

Okay, here we go, a CRISC discussion! A Certification in Risk and Information Systems Management, huh? To begin, CRISC is a recognized credential. A fancy way of stating that someone has met a set of criteria and provided evidence that they possess particular abilities and knowledge in a given field. Information system risk management and supervision fall under this category. Now, what exactly is information system control? Today's businesses depend heavily on computers and other electronic devices for archiving and processing data. With so much private data in circulation, only approved users must have access to the relevant databases. That's where the concept of "information system management" comes in, establishing safeguards for computer networks and their data. However, it's important to remember that accidents can and do happen. Therein lies the importance of risk management. Risk management aims to reduce exposure to danger by recognizing prospective risks, determining how likely and severe they are to materialize, and mitigating or reducing them as much as possible. Thus, CRISC is the result of combining computer system control and risk management. This credential attests to the holder's ability to assist companies in identifying and mitigating threats to their information systems and implementing the necessary controls to prevent them from occurring. CRISC no longer requires specific hardware or software from a single provider. It implies it is not dependent on any one technology or product. Instead, it's an umbrella term for a group of transferable competencies across different computer systems and technologies. It means that a CRISC-certified professional can deal with any company, regardless of the specific IT infrastructure they employ. Who is responsible for the CRISC certification's creation, upkeep, and testing? Referring to ISACA here. ISACA is a community of IT professionals concerned with accountability and safety in the workplace. For the CRISC certification to remain current and applicable as technology and business demands evolve, it is up to these individuals to establish and maintain the criteria for earning the credential. Who, then, does CRISC serve? This course is intended for professionals who assist companies with information system controls and risk management. Experts in information technology, risk management, auditing, and consulting could fall into this category. In a nutshell, anyone whose job is to ensure the safety and proper management of risks in an organization's data networks. In conclusion, the Certified in Risk and Information Systems Control (CRISC) credential is a sign of proven competence in IT security. It was created by ISACA, a vendor-neutral organization, and is regularly updated for business consultants. Moreover, thanks to the information you have just gained, you can now dazzle your friends and family with your extensive understanding of IT credentials.

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SAN Topology

SANs are not just for the birds. They're also for the IT guys and gals who must manage them. If you're going to be a storage administrator, you have to know your way around a SAN, which means understanding their different topologies. A SAN is a storage area network, which means it's a way of connecting multiple computers to share information and data. In concept, a fabric is identical to a network segment in a local area network (LAN). A standard fiber channel SAN fabric consists of several fiber channel switches. The connections between these switches are called "links." The combination of links and buttons is called a fabric. The controls in the fabric exchange information about the location of attached storage devices, and the links carry this information between them. There are three main types of SAN topologies: point-to-point, arbitrated loop, and fabric. Each has its strengths and weaknesses, depending on your system's size and what you need it for. The best way to think about SAN topology is like a wedding cake—you have some tiers, and each tier has its unique flavor. The first tier is your edge switches, the delicious icing on your cake. You can have as many of these as you want, but they will all be quick and easy to manage because they don't have any extra layers between them and the devices they connect. The next tier is your core switches, like your cake's filling: sweet and gooey but not as exciting as the cake part. These switches are where most of the traffic gets routed through, so it makes sense to have more of them than edge switches—but not too many! Finally, there's your storage array itself. This one doesn't change much from topology to topology—it's just there to hold all those delicious files you'll eventually access from one of your happier clients!

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Netsplit

Netsplits are the worst thing that can happen to your internet connection. It's like you're on the phone with your mom, and all of a sudden—BAM!—she's gone. And then you're just sitting there, staring at your phone and wondering what just happened and if she's OK. It's also like when your friend says they want to meet up with you after school but then doesn't show up, and you have to walk home alone, thinking about all the things they could have said that would have prevented this from happening (and how many times they could have texted). And it's kind of like when someone asks you out on a date, and then moments later they cancel on you because their cousin came into town unexpectedly and needs their help organizing her wedding registry. If you've ever used IRC, you know how frustrating it can be when your connection drops. You try to reconnect, and you get kicked off the server. You try again, and you get kicked off again. And then you start getting the "You have been idle for too long" message. That's what happens when there's a netsplit or network split. It's when one or more of your connections splits off from the rest of the network, so they don't share information anymore. An example of netsplit can be seen by looking at IRC servers and clients. Consider a scenario where four servers (A, B, C, and D) are connected. Server A has a user named John; server B has a user named Sam; server C has a user named Smith; server D has a user named Sohail. Each user is connected to his or her server at the beginning, and all of these servers are IRC frontend applications and are connected

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