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Cisco 300-425 Practice Test Questions, Cisco 300-425 Exam Dumps

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Wireless Enterprise Network Design Fundamentals

12. CH01-V11 Challenges of Setting up a Wireless Network For Hospitality

Hello and welcome to our new lesson. In this lesson, we will talk about the challenges of setting up a wireless network for hostility. These challenges will be all about how to design such networks and how we can complete our site surveys. So first of all, we need to talk about some construction materials and some construction having multiples, as hotels and some cafes have multiples. Even hotels will have numerous rooms and you will need to give the customer or client adequate throughput. You will have fewer users per access point when you consider the rooms. The area where you put rooms and you will have many many claims in the areas where you will have meetings and where you will have auditoriums, so you need to think about different kinds of designs for rooms and in general areas. You will also have different building materials, but these are the least of your concerns. First you need to think about security because you will need to first protect your physical security. You will be talking about some general areas where clients will have access, so you need to put your access points inside the building materials. Of course, this will create some distortion, and this will cause some decrease in the quality of the signal. Why? Because you will have building materials between the access point and the client, you will also have some concerns for your network. WhyBecause you will have many clients and those clients will be connecting to your WiFi with no security layer to security.You will have some web authentication for billing purposes, and you will even have many SSIDs for different kinds of wilderness because you will have some wilderness that will be free for your hotel guests. You will have some clients that will want to have premium wireless just because they need to do so, and they will pay extra money to you, so you will have to take care of their billing. Then you will also have some SSIDs that will serve the guests but not your clients, just people who just came for a meeting in the meeting rooms. In the auditoriums and conference halls, you will need to consider some hotspots. These are some of the challenges that you will have in your hotels, and you will also have similar challenges for your cafes. You will need to support hot spots and generally you won't give some premium service, but those need to be free and you will not have any layer of security, but you will need to somehow authenticate users to get them inside your WiFi. You can use some pressure keys that will be integrated into the receipt that the customer will have. Or you can get them used hotspots with their identity number on it. You will have many different options in that.Also, in the restaurants and in hotels, you will have many sources of interference. Why? Because you will have different building materials and you will have some cards that the waiters push around, and you will have some microwaves, you will have some interference due to two 4 GHz resources, such as Bluetooth, and you will have different numbers of customers for different times of the day. So in the morning you will have many customers in the breakfast area, and in the hours between breakfast and lunch you will not have any customers in there. And due to that reasoning, you have to do some scheduling. You have to design your network according to those needs. And again, in hotels, restaurants, and cafes, you will need to consider aesthetics. You won't show the customer the exact access point location. So for example, in this one you will have the access point inside the ceiling boards. This will be your AP and the customer or client will not see the access point. Because such long calls may necessitate the installation of antennas on the tops of the doors, the antennas must be tiled. Of course, one significant difference between other networks is that you will have little to no support needs because you cannot have personnel for 500 or thousands of hotel clients at the same time. So the client needs to be able to use WiFi without any support, without any need. It should be straight up and it should be a true process that the customer will be able to figure out for himself or herself. So they will just open up their browsers or phones and they will see that the room number, the password that you got from the lobby, will have some screens like that. Then, first of course, they will see the SSID name. They will fill out a form after they connect, and they will be connected. So this should be as easy as that. To sum it up, you will have different needs for different environments and for the hospitality environments for cafes, restaurants, and hotels. You will need security needs, and you will need different billing, interference, and aesthetic needs. Of course, the support needs are going to be another challenge that you need to address by having a very thorough and very easy process for the client to be able to connect.

13. CH01-V12 Challenges of Setting up a Wireless Network For Healthcare

Hello and welcome to our new lesson. In this lesson, we will talk about challenges that you will face in a healthcare environment. So, in every design and in every survey, you will have different challenges. But for the healthcare environment, you will have many floors, you will have many rooms that need to be spacious enough, so you will need a lot of access points. Also, you will have different devices that will create a lot of interference for you because there will be some metal cabinets, some metal devices, and even different devices that will have huge multiple effects. And of course, for the site surveys, some areas will not be accessible to the surveyor, so you will need some special access to those areas to be able to check and do the site surveys as you will have many different devices and those devices will need numerous and diverse applications, so you will need support for many different applications. Some of them will need high bandwidth, so bandwidth will be an issue for you. For example, x-rays, because you will be sending very high quality images from the imaging xray room up to the doctor's PC and some of those devices will need wireless access. Of course, you will need some devices that will need to be used with VoIP, so you will have Wi-Fi support. This will mean that you will have some pretty good real-time application support. You will need that. And in the patient rooms, you will have closed activities. You will have some video applications that will be going. They will be showing some videos all around the campus. So some devices will have WiFi just for those huge TVs. You will have x-rays. Some ECGs Some ultrasound devices will need to have data support for the wireless part, and you will need to be able to use RFID tags for some sensitive devices, so you will know where they are exactly and this will require location services support. You will need to have hotspots for certain areas so that the patients or the visitors who come to visit their patients will be able to access the internet, because sometimes they will need to make some payment via the internet. They will need to do some service work so that they will be able to check their emails for some test results. And this hotspot source will be crucial both for your side and also the potential visitors or people who come with the patient so that they'll be able to do some stuff that is needed for the patient to do. And of course, you have to get some voice support and you have to get some voice support and voice roaming support for some IP phones and some wireless IP phones so that doctors will be able to get their calls even though they are walking from the emergency room, they are walking from the operation room, up to the patient's room. So you will need to have entrance connectivity and you will need to consider roaming areas because you will have many elevators. Many shafts. And also, you need to consider safety while you are doing the site survey. You will not be able to get into certain areas, and some areas will need special access. But some areas will be harmful to your health because in those areas there will be high radiation in there.So you need some special equipment to go in there or you need to get the devices shut off for a certain amount of time so that you'll be able to do the necessary site survey. And due to having different equipment, hospital equipment especially, you need to award that RF interference. And of course, you will have some aesthetic concerns so that the customer knows that you will not have customers, but you will have patience. So they need to be able to feel safe in the environment and they don't have to see many different antennas or many different access points that are just blinking. Some patients will be extremely sensitive to those blinking lights, so go ahead and close their LEDs, as well as the LEDs of access points. And in certain rooms you shouldn't be going around because there will be places like the intensive care unit where those patients already have a difficult time there. Because they are in the intensive care unit,you shouldn't be going around disturbing them. So you need to get some scheduling information to be able to survey those certain areas and do your designs according to that. So we talked a lot about a lot of challenges. You need to support different applications, you need to consider the aesthetics, you need to consider your safety, the safety of the patients, you need to support location services for RFID tags, so you need to consider many different aspects of your design. So this video was all about the challenges of setting up a wireless network for healthcare and connecting a site survey. Thank you for watching.

14. CH01-V13 Challenges of Setting up a Wireless Network For Education

Hello and welcome to our new lesson. In this lesson we will discuss challenges for educational places such as schools, universities, and university campuses. And when you think about education, you think about new applications because day by day, schools get some smart ports for classroom environments. Some schools even have nice wireless access points just to support their educational purposes. And when you do that, you generally have a central server. So you will get all that data and distribute it when, in some schools, the tablets of each student will show such videos on the board. For example, you will have the board here and you will show the video here. At the same time, the tablets will get this video. So you will need to be supporting multicasting at huge densities and you will need to send this video to each student. Some schools have that. Some schools need different applications for the RFID tags of each tablet that students have, because tablets will be the property of the school and, in some schools, you will not be allowed to take them out. So you will again need support for different applications and location services, and you will also deal with different device densities. So, on university campuses, you will need to support many different devices per student. And all those students will be here, here, and here. So there will be many different faces here and here. And this means a huge device density due to the bring your own device concept on campuses. And there will be some difficult areas, such as auditoriums, outer environments in university campuses, and areas that will be filled with a variety of metal desks and metal cabinets, such as these. So you will have interference. You will have multiples in each classroom. And you need to support 40 students in a classroom. So you will have a huge density. You will have a load per classroom. So you might need many access points. And while deploying many access points, you also have to consider the health of the children because some children will be very curious about those access points and they will want to go on desks, try to reach them, try to poke them with some sticks,try to hold on to the antenna. So you might need to put them into ceiling tiles. You might also need to cover the antennas of the access points so the children will not see them. And you will have to fix those access points so that they will not be moved by poking around, by going through those ceiling tiles. So security in both physical and device security will be in effect. Network security will also be in effect. Also, you will need to be securing the access points physically because there will be many, many people on university campuses and, of course, there will be many students there, but there can be some people who just pose as, just act as an imposter and go and try to steal those access points. So you'll need to use some enclosed blacks and get just like the healthcare environment. You need to get the LEDs of the access points turned off so that you will not just attract children to go and check them out, and you need to apply some QS for each student so they will not be getting huge downloads from torrents. So each student will have a session count that is allowed and they will also have bandwidth limitations per student per society. So you will not be getting bottlenecks because some students are just getting all the bandwidth while downloading the latest movie from Torrent. So you need to think about all that while doing the design and deployment and you also need to be able to do site surveys while considering the interference sources and device densities because while doing the site survey, you probably won't have any children around, but you need to do the site survey and design as if you will have 40 children. Maybe 30 children. Maybe 40 children per classroom. So you need to put all those facts in and deal with your site survey and design according to those facts. So it is always important to gather the facts for the environment. You need to put your heart into those challenges. into those tests and while verifying your designs. You need to be able to test the environment. Maybe try it with 40 students using the tablet and creating a heavy traffic load while you are supporting the environment with one AP and whether you also need to consider the cell size according to the classrooms. For example, you have a classroom here, you might support two APS and you have another classroom here,so the sales size should be such that you will not affect other classrooms so much and because you'll be supporting maybe some secondary schoolers, some children, and they will not be getting too focused on connecting the right SSID per classroom. So you don't want the students here to get connected to this society and maybe get a science lab in front of the history class. OK, so you need to consider all that. I was actually working on a project that was considering the first deployment as 82,000 APS, and in the end, the project was going to be 620,000 APS and each student would get a tablet. I worked on the project from the beginning and did all of the demos, and we faced numerous challenges. So educational places are a beast to design and do the site survey and even do the demo. You have to consider many many different facts, and when you do something wrong, you just have to go back to school and do it all again. Believe me, I know that.

15. CH01-V14 Challenges of Setting up a Wireless Network For Retail

And welcome to our new lesson. In this lesson now, we will focus on the retail part. Again, we will have many different challenges, but some of them will be similar to those in other environments. First of all, in every situation we will have some real-time application support needs because we will be using some 800 and 211 phones; we will also be using some wireless tablets to take orders and provide choices; and we will also need to provide some hotspots so people will be able to use them. But those hot spots again need to support real-time applications because sometimes people even go live from stores. Utah rules are everywhere. And even in some stores, there are price tags that can be controlled wirelessly. So you need to put some support into those wireless tags. They will be needing to check price tags every 30 minutes, an hour, or per day so that they will be updated all the time. And you will have hot spots in different stores. So there will be a coffee shop here, a Starbucks here, and there will be some stores that will provide wireless hot spots for their clients when they are going through the store. Maybe there will be some department stores here so that people will spend a lot of time dealing with the purchasing and looking for different products. So those stores actually need to provide some hotspots. But all those hot spots need to have a design that is bought and be susceptible to channel overlap because they need to be controlled by a central organisation or by the IT team of the department store or retail store. And if you don't do that, there will be many different hotspots because even the hotspots in here will be providing wireless to the clients on the ground floor. And this is not something we want. We want those hotspots to be limited to the store that it provides.And we will also have some heavy usage times during certain hours. Those could be inventory check hours, or those could be some holiday seasons that we are approaching fast. Even some department stores and retail stores experience high traffic during lunch and dinner hours. People also go there to get lunch, dinner, and then go shopping. So you will have different scheduling in terms of usage. And even at night, there will be some inventory checks. As a result, each department store will see high usage, and purchasing information must be uploaded to the central, cloud, or central server by each store. And you need to be able to permit each store to have their own wireless design, have their owndamage requirements provided, and you also need to get them in order by doing a proper site survey after all those stores are operational. So you need to consider the site survey here for each hotspot, and you also need to consider the benefit limitations. This will also be important and you will need different types of paging devices in each store. You will have different types of paging devices, you will have even wireless card stations that will help the customer pay the total amount by just going through certain areas so that they will not have to wait in line for long queues. So you need to consider a lot during that wild site survey for retail and also for the overall design and getting everything working in line. There will be all sorts of devices, so you also need to support some legacy devices, old devices that will require slower speeds, and you also have to consider some sort of clientele trans beam forming, so that you'll be able to give higher speeds to clients with better technology. Clients with higher bandwidth requirements will have more polluted devices, and you will have different interference sources because there will be many different devices in there operating at different frequencies, some of which will overlap. 4 will have some warehouses in between those retail stores, some storage facilities, and even in those storage facilities, you will need to provide wireless because the barcode scanners will be using barcodes for inventory purposes. So all those requirements need to be provided in just one building. And as you can see in this picture, you will have some ceilings that will be too long and too high. So you should think about using different directional antennas, but you should also put them in ceiling boards so that you don't lose an aesthetic look. You will not be messing with that. So these are all the challenges, but most of the challenges that you will face for retail stores, and you need to consider all of them for the wild side survey and also for the wirelessly.

16. CH01-V15 Challenges of Setting up a Wireless Network For Production Environment

Hello and welcome to our new lesson. In this lesson, we will talk about challenges in design and production fields, and we will also talk about the site surveys for production environments and some warehouse storage rooms. So first of all, we need to think about those places, and we need to get some requirements from the customer properly, because you might see this whole huge facility and you might think how are we supposed to cover wires end to end, and you might see the high ceilings, because this will definitely create a huge challenge for us. And we will have many different metals, many different metal storage cabinets, so you will have different interference sources, but at the same time you will have an issue of multipath because all that matter will just reflect the signal from here to here, from there to this place. So you need to think about all that and you need to think about the antenna direction because you need to cover all those LS between those metal cabinets. But you also need to talk with the customer about the details of the wireless coverage because they can tell you that they will need some application support, real-time application support. They will need some location tracking. But will they need it throughout the whole factory, throughout the whole ruction field? Or will they need it for certain places, such as the storage room? Or will they need it just to, for example, track these cars from the beginning of the production field to the end? And will you also need to think about some moving objects such as forklifts because they will create multiple tissues, some brokerage during those transactions, and will there be any changes in the layout of the facility? Is it always the same or does it change in season, in times where they produce certain different products? So we all need to think about all that. We need to consider robots because there will be double products throughout the plant, and if they go to certain areas, will we tag them with roofed tags? And because the ceilings are high and the aisles are long, how far will it be to the switch? Will we need to think about some mesh deployment because we will not have certain switches in those high ceilings? And maybe we will need to consider getting some extenders because the distance will be greater than 100 meters, which is the Ethernet standard. So power is also another concern if you are not using any switches, or if you are using mesh deployment, because we will need to give power to all those mesh devices, and also safety will be another concern. While we are doing the site survey, we need to maybe wear some hard hats. We need to go and check places with special access. So these are all things that need to be considered previously and need to be mentioned in the customer meeting. So in this video we talked about production fields and warehouses, and there will be many, many different challenges that can arise during the site survey and design. So, while you cannot consider all of them in the initial customer meeting, it is a good idea to discuss the majority of them. Thank you for watching.

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