VLAN: A Virtual Local Area Network (VLAN) is a logical grouping of network devices that behave as if they were connected to the same physical switch, even though they may actually be dispersed across multiple switches, routers, and other networking equipment. VLANs are used to logically divide a LAN for better security, performance, and more efficient broadcast traffic management. Subnetting:

Subnetting is a technique used to divide a network into two or more smaller networks. It is an important process in networking that allows large networks to be divided into smaller, more efficient sub–networks. Subnetting helps improve performance by reducing the size of broadcast domains, improving network security, and creating more efficient use of expensive WAN links.

1. Open your Webex meeting.

2. Click Share in the lower part of the screen.

3. Select the screen you want to share. If you are sharing a single app, click the application icon you want to present.

4. There is an option to choose either to share the content of the screen in its original resolution or to scale it down.

5. Select whether you want to share audio as well.

6. Click the Start Sharing button.

7. During the presentation, you can change the size of the shared window, drag and drop files onto the shared screen, draw on the shared window, etc. 8. When you’re done sharing, simply click the Stop Sharing button.

Network Access Protection (NAP) is a feature in Windows Server 2008 and later versions of the Windows Server Operating System that helps to maintain security on a computer or network. To turn on NAP:

1. Open the Server Manager.

2. Click “Configure Server“ and select the “Configure Network Access Protection“ option.

3. Check the box next to “Enable Network Access Protection (Recommened)“.

4. Click Next, and then click Confirm.

5. The NAP wizard will now guide you through setting policies and selecting network clients who will be affected by NAP. 6. After you finish setting up NAP, click Finish to enable NAP on your server.

An Xbox Mac Address is the 12–digit address that is assigned to your Xbox console. It is used to identify your device on the network and is required in order to connect to various services, such as Xbox Live. The Mac address of an Xbox console is typically printed on a sticker located on the device.

1. Use a Unique and Secure Password: When it comes to having a secure email address, the first line of defense is establishing a strong and unique password that is difficult to guess. Avoid using passwords like “password”, “123456”, and other common phrases. Additionally, don’t use the same password for multiple email accounts and try to mix up numbers, symbols, and upper and lowercase letters.

2. Use Two–Factor Authentication (2FA): Many online services now offer two–factor authentication (2FA), which is an extra layer of security used to prevent unauthorized access to your email account. 2FA requires you to enter a one–time code (often sent via text message) after entering your password. This makes it much harder for someone to gain access to your email account, even if they manage to guess or steal your password.

3. Use Encrypted Services: If you’re concerned about the security of your emails, consider using encrypted services that offer end–to–end encryption, such as ProtonMail, Tutanota, and OpenMailBox. These services use complex algorithms to scramble the contents of your emails and make them unreadable by anyone other than the intended recipient.

4. Don’t Give Out Your Email Address Too Easily: To reduce the risk of receiving spam or other unwanted emails, be careful who you share your email address with. Think twice before handing out your address to companies or websites you don’t trust.

5. Keep Your Software Up to Date: Many email providers have implemented additional measures to keep your account secure, such as regular security updates and patches. Make sure you keep all the software related to your email account up to date so that you benefit from these protections.