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One of the most difficult concepts for me as I was learning database syntax was joins. Of course, I tried reading and understanding articles and books that dealt with this topic. In almost every case, I was faced with the Venn diagram examples.

The short answer (and a common one in our industry): it depends. When comparing Cisco IOS with Juniper Junos, the decision to choose one over the other is difficult and often boils down to cost. Of course, there are other factors to consider.

When Global Knowledge and ctc TrainCanada joined forces in August 2017, Global Knowledge added Concept Training, an innovative and industry-leading training methodology, to course deliveries. Going forward, when you take a Microsoft Office course with us, you’ll get to experience our Concept Training methodology. But what does that really mean?

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.

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