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The ability to interpret and understand IP addresses and subnet masks is critical for an IT professional. This skill is the foundation for troubleshooting numerous problems, from the assignment of an IP address to a host to routing problems to access-control list problems. It is also necessary for designing and configuring efficient IP networks.

There are few (if any) networks in the world that do not implement NAT/PAT for IP version 4. IP version 6 will eliminate a lot of the need for NAT. Even though NAT is usually implemented as a firewalling function, it can be important on Cisco routers as well. From this, it is simple to conclude that understanding, designing, implementing, and troubleshooting NAT is a required skill for network engineers. The topic also appears in the CCNA examination in multiple questions and simulations.

Learn some tips that will help you prepare and pass the VCP5-DCV exam.

Learn about AIX of the Logical Volume Management (LVM) and gain tips and best practice recommendations to get the most from your AIX disk storage.

This white paper describes a technique for defining the processes called SIPOC (Suppliers, Inputs, Process, Outputs, and Customers).

Learn about the VMware vSphere Distributed Switch and its many different features.

Curious about what is new in the CompTIA Network+ exam? CompTIA is fond of making changes periodically. Read this article to know more about the recent changes.

Examine four major trending areas in IT: certifications, salaries, cloud computing and cybersecurity.

Ready to earn your Project Management Professional certification? This Certification Prep Guide provides everything you need to know about the PMP project management certification and offers helpful tips that IT professionals can use when preparing for the PMP exam. Start here!

Earning a Microsoft Certified Solutions Expert (MCSE) certification validates the necessary skills related to particular Microsoft product areas.