John’s TLC4

 It is amazing to me to think that the things we take for granted these days like surfing the internet on our phones is a marvel in technology! By the use of radio frequencies we are able to simply transmit data and calls over the air. Using the atmosphere to relay all this and not having your information lost in transmission. It makes me think about so many things we do today that would have been considered alien no more than 30 years ago. If we can use the air to transmit so much, seemingly infinite data 24/7 can we push those limits into technology we have seen in the movies like matter transportation. How cool would that be if we could forget a flight and just simply step into an elevator like space and open the door to somewhere else on the planet. Crazy sounding I’m sure but would be cool to get off work and travel the world for a few hours before bed. 

 One of the things I learned this week was during the video for upgrading your memory in a laptop computer. There are 3 different types of memory boards DDR200, DDR2 and DDR3 DDR200 and DDR2 are both 200 pin boards and DDR3 is a 204 pin board. All 3 boards have subtle differences, but the main one is that none can be plugged into the wrong slot in the laptop because the way each one is inserted is different. This difference was designed intentionally to help prevent accidental repairs with the wrong type memory. 

 IPv6 may have solved a major issue in the world of addressing, however I would like to point out the process to see whether your device is configured for IPv4 or IPv6 is done with the command prompt with ipconfig in most devices. This command when run will display in the dos screen displaying what configuration the device is setup to process. This dos screen is what still has me wondering why we are using a background dos screen that was the overall screen used in the 1980’s. Why can’t we get it to be at the very least presented in a manner that is bright and modern! 

 It is crazy to think that even in the 1980’s that 4.2 million iP addresses were enough to support the devices accessing the internet. IPv6 for now seems to be the solution to the issue of address assignment. I would like to say I look forward to seeing how long it last now that we have so many of our daily use devices accessing the internet for whatever reason. Whether it be your refrigerator, television, toys, and so many more things as we expand our technology we also pave the way for the future of technology to be developed. What are our boundaries? How long will it take for us to run out of addresses again with so many available? No matter how long it takes to parcel these addresses at least we will be more secure using them!

 It is a simple post this week. I did some research into the methods implemented to prevent and identify intrusions on the network. Having these multiple methods in place is what adds the highest level of security that businesses hope to obtain to protect their data and the confidential information stored in their own systems. Strangely attackers are getting more and more sophisticated and even these redundant systems are becoming less effective. One of the main ways to prevent inappropriate sites from gaining access is to educate the users so that bad links never get opened and unapproved sites don’t even attempt to be opened. 

 Virtualization is a way to move operating systems over hypervisors. This allows for multiple operating systems to function through instances over virtual windows. Type 1 is a bare metal server unit which is basically a large computer that is very loud and costly to operate. This system is controlled through the means of a management software that is on a separate computer. The software allows the host computer to manage and install instances onto the hypervisor. Type 2 hypervisors are more commonly used by businesses due to the decreased cost of use. The type 2 server works in much the same way as a type 1 but as it’s virtual twin. One of the main issues encountered in the type 2 is that you have to account for the RAM requirements to prevent system crashes.  

 The importance of port numbers is what helps all technicians and computers to be able to communicate with specific applications. In short when we want to communicate some form of data to a known address we still have to decide where the data is destined to be received. Port numbers are used to delegate the way data is received to your device. These ports have a set number system already in place to tell the computer if it will be send to things like a server on the internet, FTP, or a mail server using smtp. These port have to be labeled in a way that communication can be universal. So certain port numbers are known to be specific types of location applications also known as well known port numbers. The larger the port number tells your computer if it is a registered number or dynamically assigned port number for a LAN device. 

 This weeks post I am going to address the topic of language change on the devices we use daily. This task may seem so simple that you see it as unnecessary until you are faced with having to it with a clients device that is set to a language you don’t understand. This little thing has stumped me so many times in my daily work life that I have learned to memorize the needed pathways to change the language on a phone. You won’t always have your customer available to help with changing the language and it also make you appear less knowledgeable about the very device you are supposedly an expert with. So for anyone out there reading this post always remember to keep it as a visual in your head how to change the language without having to necessarily read the screen. 

 I was by far pleased to see the decimal and binary number systems introduced in the weeks reading material. I started listening to the CISCO certification videos before classes started and was able to do some research and attempt learning how to manually convert the numbers. I am curious though after researching these systems if there is a correlation or reason why cell phone memory has always been 16gb, 32gb, 64gb, 128gb, 256gb, 512gb,and 1tb due to the fact that converting a number into an IP address increases with the same intervals. If anyone knows the answer please let me know!  Subnet masking is definitely the more difficult of the addresses for me to grasp. If anyone has and ideas on how to better hold onto this information please let me know!

 I was so excited to see how to increase performance within Windows 10. I must be honest, I have already gotten with my best friend and asked if I could look at his desktop to try to perform all the necessary task outlined in the videos from this week. I am happy to say that I did not destroy his new computer and that he is happy since his computer is already running better. He uses his desktop mostly for watching videos on YouTube so to say the least this cleanup help because of so many files already stored on the computer from just watching videos and listening to music. Performing the response time of the mouse was probably the most noticeable to me. I will need to do this more than once to continue getting comfortable with this process.