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, […]
What are the differences between the CompTIA A+ 220-1102 Exam and the A+ 220-1202 Exam? This document was updated on March 30, 2025 The CompTIA A+ certification is one of information technology’s most popular certifications, and it’s common to see the A+ certification requested on many job postings. The A+ certification focuses on fundamental technologies,
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What are the differences between the CompTIA A+ 220-1101 Exam and the A+ 220-1201 Exam? This document was updated on March 30, 2025 Looking for the differences between the A+ 220-1102 and the 220-1202 Core 2 exams? Click here for our detailed analysis. The CompTIA A+ certification is one of information technology’s most popular certifications,
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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
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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
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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
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