Monday, December 21, 2020

Guest Access in Microsoft 365

On the back end, Microsoft 365 groups are objects in Azure Active Directory (Azure AD). Each group object in Azure AD contains unique identifying information such as:
Information about the group owner
URLs for associated resources
Group membership list, including any guest accounts

By default, the guest access feature is enabled for a Microsoft 365 tenant, which means a Microsoft 365 group owner can invite anyone who has a business or consumer email account become guest members of the group.

As a Microsoft 365 administrator, you can set the level of external access for the tenant by going to the Microsoft 365 Groups page in the Microsoft 365 admin center. Under Services and Add-ins, you can control whether to turn off guest access entirely and whether group owners are allowed to invite guest users.

You can also use PowerShell to limit the policy on guest access. For example, you can:
Prevent guest users from accessing a specific group.
Block external guests from a specific domain.


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Friday, December 18, 2020

CompTIA research analysts

Volley also covered cybersecurity with James Stanger, chief technology evangelist at CompTIA joining hosts and CompTIA research analysts Carolyn April and Seth Robinson, to discuss findings in CompTIA's latest research, including the structure of today's security teams and the adoption of a zero trust framework. He also covered how companies are dealing with privacy as they rely more and more on data for their offerings and products."The whole idea behind zero trust is it takes out this assumption whenever you make any sort of connection... Imagine in a model where you actually have to prove your endpoint; you have to prove your place of login, even before you begin to get the most basic of services. So basically, it’s an inspection of the state of your computer. At what point do we trust it or not trust it?"
James Stanger, Chief Technology Evangelist, CompTIA

Closing out the month on Volley, hosts Carolyn April and Seth Robinson were joined by Randy Gross, CompTIA CIO and executive vice president of certification operations, for the annual holiday episode, sharing with us, for Halloween, what scares them; for Thanksgiving, what they are thankful for; and for the winter holidays, what’s on their wish lists."Because we have the technological capabilities to be able to pivot to working from home, and I've been really impressed by the resiliency and the flexibility that technology has allowed people to be able to function and workers have responded to it. It's actually presented in some cases an opportunity for providers in the tech space, specifically in the channel, for instance, to create new businesses that are able to support all these people that are now working from home. So, we hear about the downsides—the unemployment and people who have lost their jobs and that is very real. But without the tech tools that we have in place now that this would be far worse in terms of in terms of the unemployment hit so I'm thankful for that."

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Wednesday, December 16, 2020

What Is Layer 2 in the OSI Model?

To gain an appreciation of the characteristics of addressing, it is helpful to bring forward an example that may be familiar and easy to understand.

Let’s think about this in terms of a mobile home community. Each of the mobile homes have a serial number permanently attached to the home’s frame. Computers have a similar address, called its media access control (MAC) address. That address is “burnt” on to the computers network interface card and is unique in nature. An example of the MAC address is shown in figure 1 below.

MAC (or physical) addressing provides an effective method of moving data across a small community of computing devices where routing traffic between multiple communities is not required. Traffic distribution for these small networks is handled by layer 2 switches that learn the MAC addresses of the computers connected to ports on the switch. The switches then send packets from the sending computer directly to the receiving device. This method of directing traffic helps reduce potential network congestion.

A MAC address consists of a series of 12 hexadecimal numbers. The first six numbers are useful in identifying the manufacturer of the network interface card. The last six numbers are assigned by the card manufacturer, providing a unique addressing scheme. This avoids the possibility of having two computers on the same network with the same physical address.

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Tuesday, December 15, 2020

online healthcare training

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Monday, December 14, 2020

IT Industry Outlook

Aside from the big trends that we talked about in the IT Industry Outlook 2021, there are several other concepts floating around that will be worth watching in the new year. Some of these are closer to buzzwords than actual trends—the Outlook report also features a callout box touching on several of these hot topics, from 5G to robotic process automation (RPA) to sustainability. Other concepts are not fully formed—we can see some of the pieces that go into the idea, but not the full path forward.

One example of the second category is the mix of business models we will see in the IT industry, specifically at the layer of the industry that deals directly with customers. Heading into 2021, there are four different models that are either well established or well positioned for future growth. These are certainly not the only models that exist, but they stand out because of the different operational styles required.

A business model that needs no introduction, consulting is a full-time business for some and a lead-in to further selling opportunities for others. Consulting is certainly not specific to the IT industry, but the rapid digitization of business (especially in the past year) has led to greater demand for understanding the overall landscape. One area that provides insight into this need for understanding is cybersecurity. As companies transition from a secure perimeter mindset to a zero trust mindset, there are many new considerations that come before ever making a purchase. Helping clients through these considerations requires a solid understanding of the trends involved.

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Friday, December 11, 2020

Certified Information Systems Security Professional

Certified Information Systems Security Professional ($100,735): also known as CISSP are mainly responsible for developing cyber security management in organisations and is considered a important requirement in many government, civilian and military establishments.

Cisco Certified Design Associate ($97,995): these professionals are trained to handle router networks and switching infrastructures in businesses and organisations.

Cisco Certified Network Professional ($97,296): knows as CCNAs are expected to work with other Cisco specialists in the organisations for seamless network connectivity.

ITIL v3 Foundation ($93,250): This is the first level in IT Service Management and is also quite a simple certificate to clear and is becoming really popular among people who want to make an entry into Service Management with IT companies.

Certified Novell Engineer($91,350): known as CNE deal with the network and support problems in organisations and known for being able to solve advanced networking and troubleshooting problems.

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Thursday, December 10, 2020

Become familiar with the CompTIA A+ Exam Objectives

One of the first things you can do to prepare long before test day is to download the CompTIA Exam Objectives. Read through the official exam objectives as outlined by CompTIA. They can be downloaded directly from the CompTIA website at https://www.comptia.org/training/resources/exam-objectives

This document is more than an explanation of the exam requirements; it can be considered a master guide as you go through the Computer Technician program. Use it as the ultimate checklist for your studies.

Students currently enrolled in the Career Step Computer Technician training program will want to register for the 220-701 and 220-702 exams since our current course has been designed around the 701 and 702 objectives. These exams will continue to be available until August 31, 2013. Career Step is currently revising the Computer Technician training program to meet the new 220-801 and 220-802 objectives and prepare students for the new exams. We’ll keep you posted on the revised program’s availability.

On test day, get a good night’s sleep, eat a good meal before taking the test, arrive a few minutes early, and go in with a positive attitude. You will want to schedule both sections of the exams back to back on the same day. Be confident in your first “gut reaction” to the questions, and try and eliminate possible answers through process of elimination. By narrowing down the choices, you can focus on the remaining choices to help select the best answer.

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