Có 20+ tài liệu thuộc chủ đề "Hành trình mạng không dây"
tailieu.vn Xem trực tuyến Tải xuống
Hành trình mạng không dây: Từ WiFi đến WiMax h:55. M ng không dây là m t trong nh ng b ạ ộ ữ ướ c ti n l n nh t c a ngành máy ế ớ ấ ủ tính. Năm ngoái, hàng ch c tri u thi t b Wi-Fi đã đ ụ ệ ế ị ượ c...
tailieu.vn Xem trực tuyến Tải xuống
Get Smart at Dummies.com. Plus, each month you can win valuable prizes by entering our Dummies.com sweepstakes. Find out “HOW” at Dummies.com. Get More and Do More at Dummies.com. www.dummies.com/cheatsheet/wirelessaio. 10475 Crosspoint Boulevard Indianapolis, IN 46256 www.wiley.com. www.wiley.com/go/permissions.. Trademarks: Wiley, the Wiley Publishing logo, For Dummies, the Dummies Man logo, A Reference for the Rest of Us!, The Dummies Way,...
tailieu.vn Xem trực tuyến Tải xuống
If you’re using a cordless phone or a cell phone, you can simply continue your conversation while you walk to the door.. You’re stuck with a slow dial-up connection to the Internet. Broadband is tempting, however, even if you’re out of range of your phone company for a DSL connection or cable and fiber connections are unavailable. You’re pretty much...
tailieu.vn Xem trực tuyến Tải xuống
you’re limited to 11 Mbps on an 802.11b network.. 802.11n will coexist with 802.11a, as long as you’ve got a dual band net- work card in your computer. Go to the store and you’re going to see an assortment of products, all by dif- ferent manufacturers. You’re going to see a few manufacturers, some you recognize, some you don’t. I...
tailieu.vn Xem trực tuyến Tải xuống
If you have another device that’s doing the job of DHCP and you plug in your device, then you’ll have two devices handing out addresses.. As you add more pieces to your network, you’ll probably come across the situation where you get two DHCP servers. Without a default gateway, you’re not going to get on the Internet.. This chapter has...
tailieu.vn Xem trực tuyến Tải xuống
Ge ttin g Y ou r P C On the Net. Your computer can be discovered on the network, and firewall restrictions are somewhat relaxed.. This location is virtually identical to the Home location, except that the firewall is further tuned to allow management connections in.. The icon indicates you are connected to a network (otherwise there would be a...
tailieu.vn Xem trực tuyến Tải xuống
If you’ve got through the previous section and still can’t connect to the router, then skip ahead to the end and look at updating drivers.. Look back at the network diagram. Because you can connect to the router, you know that your computer is all right and the wireless network works. While you’re at it, make sure that all the...
tailieu.vn Xem trực tuyến Tải xuống
You’re adding a wireless network and want it to piggyback on an exist- ing wired Ethernet network. You want to bridge two wired Ethernet networks. You want to extend the range of a wireless network. You need a network adapter, which serves as a communications point between your computer and the network, for each network you want to bridge. If...
tailieu.vn Xem trực tuyến Tải xuống
Clicking on the link in the previ- ous figure brings you to Figure 1-3.. It’s not perfect, but it’s an addi- tional layer of protection.. The essence of the scam is that you sign up for a free trial of some prod- uct and only have to pay a couple of dollars shipping. What you missed in the reams of...
tailieu.vn Xem trực tuyến Tải xuống
The dialog box shown in Figure 3-6 is light on details. You’re being asked to decide whether or not an application should accept connections. If you allow it, the Windows firewall will allow incoming connections into this application.. The first question you should ask is “Did I just launch that applica- tion?” If the query came while you were in...
tailieu.vn Xem trực tuyến Tải xuống
If you can’t get to it, and they can’t get to it, chances are the problem lies closer to the Web site than it does for you (for this to work, the other person should really be in a different house).. This is a Web site where you can type in the name of another Web site, and it’ll happily...
tailieu.vn Xem trực tuyến Tải xuống
I ’m assuming that you’ve successfully connected your wireless device to your wireless network and are ready for the next step: actually using that wireless link to move data across the network. If you’re not there yet, check out Book V, Chapter 2, which provides the instructions for connecting.. In this chapter, I discuss synchronizing your wireless device with informa-...
tailieu.vn Xem trực tuyến Tải xuống
Now it’s almost expected, especially among mid- to high-end hotels, that you’ll have wireless Internet access from your room and possibly the lobby, too. For example, these large hotel chains offer some services (if you’re in the U.S.):. Most of the chain’s more than 200 hotels have Wi-Fi access;. The service is available in the lobby, other public areas, and...
tailieu.vn Xem trực tuyến Tải xuống
Generally, as the frequency goes higher, so does the maximum distance you can take the handset from the base station, and the clarity gets better. You can buy one of these phones pretty cheaply, but many manufacturers are phasing them out, favoring instead the 2.4 GHz and 5.8 GHz models. If you’re on a budget, you can buy one of...
tailieu.vn Xem trực tuyến Tải xuống
If you’re thinking about streaming high-definition video, you’re looking at bit rates that can approach 20 Mbps. Then there’s the issue of quality of service. If you’ve ever watched a video streamed from the Internet, and noticed lots of interruptions or breakups in the picture, that’s poor quality of service. Windows Media Center in Windows Vista and Windows 7 can...
tailieu.vn Xem trực tuyến Tải xuống
On the other hand, if you have tight space constraints, perhaps because you have a particular piece of furniture that will house the HDTV, then that will dictate the maximum size of the unit.. Content Source: What’s the source of the HD content? If you want to use an over-the-air antenna exclusively, you’ll need an HDTV with a built-in tuner...
tailieu.vn Xem trực tuyến Tải xuống
There are quite a few reasons why I think you’ll find that having a connec- tion between your GPS receiver and your PC awfully handy. That’s one reason many GPS receivers offer the option to connect to your PC — so you can update the maps in the GPS receiver.. By downloading this tracking information to your PC, you can...
tailieu.vn Xem trực tuyến Tải xuống
WPA: See Wi-Fi protected access.. Wi-Fi: Wireless fidelity. Wi-Fi protected access: WPA. Wi-Fi protected access version 2: WPA2. Wi-Fi Protected Setup (WPS): A mechanism to automatically configure a wireless device to a supported access point.. 8900+ GPS Wi-Fi Series, 295. Network Connection Status dialog box, Windows Vista, 87, 174 ad hoc networks, defined,. Add a Network feature, Windows Vista, 155...
tailieu.vn Xem trực tuyến Tải xuống
Aside from this specific exception concerning reusable code, no part of this publication may be stored in a retrieval system, transmitted, or reproduced in any way, including but not limited to photo- copy, photograph, magnetic, or other record, without the prior agreement and written permission of the publisher.. in the United States and/or other countries.. in the United States and...
tailieu.vn Xem trực tuyến Tải xuống
The neighbor table is used to collect information on which of the following?. All routes through the network. What is the purpose of the set clause in a route map?. What BGP command syntax identifies the AS of the remote router that the local router will initiate a session with?. Which of the following is Cisco proprietary?. Which of the...