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I'm super awesome and super proud to tell you that you have finally reached the end of this section



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of networking devices through this chapter, covered quite a bit of information.



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You learn the difference between a router switch and a hub and then to use each one.



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I also cover some devices that you might find in the network today, but not as often, such as VPN



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concentrators and content filters.



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The information I discussed about DNS and DCP is critical to your success on different examples like



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Network plus Kenay and many more, and highly suggest that you re revisit those sections because generally



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questions are being asked on the DNS and other things I do interview.



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I covered how both the DNS and DHP services work on the network, and I also discussed about the DCP



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operations.



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If you remember, in addition to the most common devices, I discussed the specialized network devices



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mentioned in the network objectives of the exams.



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I finished the chapter or the section by discussing collision and the broadcast domains, as well as



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how would you use a router and the benefits of routers.



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All of the information in this section is fundamental and you must understand it before moving on to



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the next chapters or the next sections of this course.



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So if you have any doubts, I recommend you to please revisit all the sections if you have any doubts.



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So what do you need to focus on?



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You need to focus on how DCP works and its purpose.



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Dynamic Host Configuration Protocol provides IP configuration information on to hosts.



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It is important to know how or DCP client requests information from a server, how a server receives



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this information, and also how the server responds to the client and with what type of information.



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Now I will tell you one thing that whenever I, I tell you about a quick recap or what you should focus



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on, it is the mantra that you should always follow while starting computer networking at the end of



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each section.



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I have a quick recap video which will tell you exactly what do you need to focus to get you certified,



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as you see in your network exam or anything on the questions on these topics will be asked in your exam.



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Mark my words.



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Then next, you should understand how DNS works and its purpose.



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This domain name service is used to resolve human names to IP addresses.



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Understanding how DNS resolves these names is critical, as is understanding how our DNS square is sent



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and how our DNS server responds.



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Then you need to understand the difference between a hub, a switch and a router, a hub just connects



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network segments together, a switch or a big segment of the network using Mac addresses and router



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segments, the network using logical accuracy, that is, the IP address switches up collision domains



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and routers break up broadcast domains by default.



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Also, remember the different names for a daughter, a daughter is also called a military hardware switch,



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but it can also be called a multilayer switch.



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Then remember the various devices used on networks today and when and how would you use them in different



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scenarios?



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And finally make sure that you understand the working of proxy servers and access points as these two



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devices are commonly used in today's Internet?