We can provide network protection and segmentation through the use of virtual local area networks (VLANs) and virtual private networks (VPNs). In this video, you’ll learn about separating broadcast domains into separate VLANs, and how remote connectivity can be protected through the use of encrypted client-to-site or site-to-site VPNs. << Previous: DHCP Next Video: Network […]
We rely on the dynamic host configuration protocol (DHCP) to automatically assign IP addresses to our network devices. In this video, you’ll learn about the DHCP process, scopes, pools, and DHCP address reservations. << Previous: DNS Configuration Next Video: VLANs and VPNs >> We’ve become very accustomed to turning on our desktop computers, our laptops,
Our DNS servers provide critical name resolution services for nearly every device on the network. In this video, you’ll learn about DNS records for address (A, AAAA), canonical names (CNAME), mail exchanger (MX), text (TXT), Domain Keys Identified Mail (DKIM), Sender Policy Framework (SPF), and Domain-based Message Authentication, Reporting, and Conformance (DMARC). << Previous: Network
It takes many different services to keep a network running. In this video, you’ll learn about DNS, DHCP, file sharing, print servers, mail servers, Syslog, web servers, authentication, spam gateways, all-in-one security appliances, load balancers, proxy servers, SCADA, legacy systems, embedded devices, and IoT (Internet of Things). << Previous: Wireless Network Technologies Next Video: DNS
We often use many different wireless in a single day. In this video, you’ll learn about 802.11 frequencies and channels, Bluetooth technologies, RFID, and near field communication (NFC). << Previous: Common Ports Next Video: Network Services >> When we hear the term wireless technologies, most of us probably think about the wireless networks that we
Wireless Network Technologies – CompTIA A+ 220-1201 – 2.2 Read More »
Applications commonly use a well-known port number for network communication. In this video, you’ll learn about the common ports for FTP, SSH, Telnet, SMTP, DNS, DHCP, HTTP, HTTPS, POP3, IMAP, SMB, LDAP, LDAPS, and RDP. << Previous: Introduction to IP Next Video: Wireless Network Technologies >> As we’ve discussed in a previous video, the port
The Internet uses a standard set of protocols to send traffic from one part of the world to another. In this video, you’ll learn about IP, TCP, UDP, port numbers, and how they all work together to enable worldwide communication over our wired and wireless networks. << Previous: Mobile Device Management Next Video: Common Ports
Most organizations must manage hundreds or thousands of mobile devices. In this video, you’ll learn about mobile device management (MDM), device ownership options using BYOD and COPE, data synchronization challenges, and managing business applications. << Previous: Mobile Device Networks Next Video: Introduction to IP >> If you have an organization and you need to manage
Mobile Device Management – CompTIA A+ 220-1201 – 1.3 Read More »
Our mobile devices keep us connected and available from almost anywhere in the world. In this video, you’ll learn about cellular network technologies (3G, 4G, and 5G), Wi-Fi networking, hotspot connectivity, SIMs, Bluetooth, and GPS satellites. << Previous: Mobile Device Accessories Next Video: Mobile Device Management >> You have a mobile phone, you probably also
Mobile Device Networks – CompTIA A+ 220-1201 – 1.3 Read More »
Our mobile devices can be enhanced with a number of useful accessories. In this video, you’ll learn about a stylus, headsets, speakers, webcams, docking stations, port replicators, trackpads, and drawing pads. << Previous: Connecting Mobile Devices Next Video: Mobile Device Networks >> Many of us have used our fingers to be able to manipulate the
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