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APIPA – CompTIA Network+ N10-006 – 1.8
The APIPA process ensures that your computer will be able to communicate on a local subnet, even when a DHCP server is not available. In this video, you’ll learn about the details of APIPA and how to determine if your computer has been assigned an APIPA address.
IPv4 Addresses and Subnetting – CompTIA Network+ N10-006 – 1.8
The calculation of an IP subnet is a relatively straightforward process, and in this video you’ll learn how to use binary math to calculate the network address, broadcast address, and device addresses on an IP subnet.
DNS Records – CompTIA Network+ N10-006 – 1.3
A DNS configuration file can look a bit daunting without understanding the resource records. In this video, you’ll learn about the address (A), canonical name (CNAME), mail exchanger (MX), and pointer (PTR) DNS records.
Linux Hardware Resources – CompTIA Linux+ LX0-101, LPIC-1: 101.1
When installing or troubleshooting a Linux device, it’s useful to know how the operating system is configured to work with the physical hardware. In this video, you’ll learn about the /proc file system and how to examine interrupt request channels (IRQs), I/O addresses, and DMA channels of the hardware in your Linux workstation.