joi, 25 iulie 2013

Ten Practice Questions for CCNA Exam - Exam Practice for CCNA 640-802 - Computers - Certification

Practice is the mother of learning. After studying your textbooks and learn the theory for the CCNA syllabus, the best approach to assimilate and strengthen your knowledge is to solve many practice questions and study test exams. This article provides ten practice questions which focus on a wide range of topics that you need to learn for passing your CCNA exam.

QUESTION 1: Which of the following CLI prompts indicates that you are working in privileged EXEC mode?

A. Hostname> B. Hostname# C. Hostname-config D. Hostname-exec>

ANSWER: B

QUESTION 2: What command do you type to save the configuration stored in RAM to NVRAM?

ANSWER: copy running-config startup-config

QUESTION 3: Which information does the show vlan command display?

A. Ports that are configured as trunks B. VMPS server configuration parameters C. Names of the VLANs and the ports that are assigned to the VLANs D. VTP domain parameters

ANSWER: C

QUESTION 4: What are two characteristics of OSPF? (Choose two.)

A. Proprietary B. Similar to RIP C. Hierarchical D. Open Standard E. Distance Vector Protocol

ANSWER: C, D

QUESTION 5: Which command can you type at the router prompt to verify the broadcast frequency for IGRP?

ANSWER: show ip protocols

QUESTION 6: Which command is used, and in what context, to stop routing updates from exiting a routers serial 0 interface?

ANSWER: Router(config-router)#passive-interface s0

QUESTION 7: Which subnet mask would be appropriate for a Class C address used for 9 LANs, each with 12 hosts?

A. 255.255.255.252 B. 255.255.255.240 C. 255.255.255.224 D. 255.255.255.0

ANSWER: B

QUESTION 8: Which command correctly specifies that network 10.0.0.0 is directly connected to a router that is running EIGRP?

A. Router(config-router)# network 10.0.0.0 B. Router(config-router)# router eigrp 10.0.0.0 C. Router(config)# network 10.0.0.0 D. Router(config)# router eigrp 10.0.0.0

ANSWER: A

QUESTION 9: What does a switch do when a frame is received on an interface and the destination hardware address is unknown or not in the filter table?

ANSWER: The switch floods the network with the frame attempting to ensure that the device receives the frame.

QUESTION 10: What protocol is used to find the hardware address of a local device?

ANSWER: Address Resolution Protocol (ARP)

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access point vs router

Google service convenience brought security hidden danger - Business

This article will express is about the author in the use of the system with two asus Eee Pad login Google service process found some questions. These problems can let us to this new product produce some new feelings and views.

When the author attempts to use Google account login, but found no connection to the web. The author's first reaction is to be linked to the public the wireless network, but found department just changed office area, and forget the new WPA2 password. Then, the author opened his Virgin Mobile Mi-Fi 2200 personal access equipment. Then the author in the Eee Pad for hot list, but to the surprise of the author, Eee Pad have found the Virgin hot spots, and has successfully access. The author has chosen just now is hot and enter the code? The answer must be wrong.

The authors of the study show the author noticed more problems, Eee Pad can not only be found and connection of the Virgin Hotspot hot spots, and even the authors of the other lists commonly used hot name, including the author in camping sites (45 minutes drive from distance office) the use of WiFi Hotspot, are found in the Eee Pad hot list. This phenomenon is the only explanation, Google not only stores we once visited the hot spot of the name, will also access password also were stored.

In addition to the obvious about personal privacy issues outside, still a potential problems. Some may think of, if you use the andros application, and also used Google services, then you may be not the knowledge of the state of the accepted andros system hidden function. But we actually use, many WiFi hotspot and we did not build, among them were some when use may need additional special conditions, so we are not generally will WiFi access point password told the third party. This is a very easy to understand is also widespread security strategy, but like Google to not pay any attention.

According to understand, for most andros system users, not quite clear how to ban andros operating system will WiFi access point name and password sent to the Google server to back up, and in the user use any other system based on the equipment and two login Google account to be automatic synchronous these data. If it is really so, then Google to the way users have only two: either don't use login encrypted andros equipment wireless network, or in violation of the agreement of the encrypted network, will share with Google password. And for those who wireless access points for managers, the most direct reaction may be banned those who adopt the equipment access network andros system. Such as the company USES is with a password protection of the wireless network, if any staff use andros equipment can send your password to the wireless networks will Google, it is the company network managers situation that is not acceptable. If want to make refused to login strategy, and so o n is not limited to the external personnel, but most of the company include his staff.

Recently on some blog we can see, many Internet users think that future life is built on Facebook, Google and Apple company developed under the various rules, and that will only make originally in Microsoft empire period the darkest days look also appears kind and not so dark, because such as Facebook, Google and other companies in the treat individual privacy exposed more than Microsoft more serious problem. We think these fears are valid, and the concern if not solved, there will be serious security problems. Just think, if has the unlawful molecules through the equipment to be automatic access the andros we the company network, and the damage is immeasurable. From this problem can also see that Google's engineers and programmers and project director in processing enterprise sensitive information and the protection of data privacy lack of basic cognition. In fairness, if can choose only one data don't be harvested, backup or in different between equipment synchronous, th at this kind of data should be password. For this, we have to wonder, Google also collected exactly what type of data, to help us better experience Google services "value-added".

Because, this is Google's a "function", and this function really is very convenient, especially for those who don't know the protection of privacy or are willing to sacrifice part of privacy for the convenience of the customer is higher. And this is what we worry about the most. But many users do not know the convenience brought about by the potential risk.

For Google's this way everybody should be how to treat? This is a careless up like that? Google will really heartfelt consider for the customer? Are we too indulgence Google's behavior, or Google themselves across the our bottom line? If readers found that is not like this article that said in the article comments can also give your opinion.

Although, at present, we have found the problem only appear in the purchase the asus Eee Pad Transformer, and in other before andros equipment, still did not pay attention to this problem. Therefore, we can also suspected that this was the Honeycomb zhuo the new functions of the system is the result of.



access point vs router

Tricks To Using The Internet On Notebook/Laptop Computers - Health

The Netgear N600 involves one USB port, but it is not designed for sharing the printer. The port with its ReadySHARE technology is used to share the USB storage accessibility which supports FAT16/32, NTFS Examine/Publish. If you need sharing the printer inside of the network, you want to create a print-server. So if the printer is very important in your network, you greater select the Belkin N600 routers.Visitor Safe Access Belkin N600 supports solitary SSID for your wireless network identify. But Netgear N600 supports numerous SSIDs. With many SSIDs you can develop separate security boundary for guest protected access. Many SSID or visitor secure entry is best for offices where enterprise partners / website visitors usually arrive to your place of work and require wireless net access from their laptops.So if the various protection policies for distinct groups of customers are necessary, Netgear N600 is your router. Netgear N600 also involves free dwell parental manage for clear internet. But for your property network, Belkin N600 can be your choice router with the functionality of sharing the storage and printer at the same time.Other capabilities among the Belkin N600 and Netgear N600 are virtually the identical including WPA/WPA2 wireless safety, NAT and SPI firewall, High quality of Solutions (QoS) and WMM (wireless multi-media) primarily based QoS.Figuring out the manufacturer specs is very critical in deciding to acquire the router for your wireless network atmosphere. Belkin N600 router may be the greatest for your house wants but it might not be acceptable for offices environments.By Ki GrinsingOne particular of the brilliant suggestions for cell computing is a wireless internet for laptops. Laptop is developed for cellular use, it is created with the exact same principle as a personalized pc, working in an running method, and employing software program purposes. It is so portable that you can have it in any location with out a requir e of a plug to electrical power, and what a mixture it is when related to a wireless web.To have a wireless world wide web link to your laptop computer, make confident that your laptop is wireless able. Laptop computer requirements demonstrate that it has hardware ability for wireless internet link. Other way to uncover out if a laptop is wireless able is to appropriate click on My laptop or computer then pick Qualities and go to the Gadget Manager, increase the Network Adapters, and if your laptop is wireless capable then you will see Wireless Network Adapters.There are various approaches to have a wireless web connection for laptops. A desktop personal computer linked to the web can use a wireless USB adapter or a USB antenna to offer net connection to a wireless able laptop computer. USB modem can also be employed for laptops to have a wireless connection, the modem makes use of micro waves from cell web sites therefore the world wide web subscription will be from a mobil e telecommunications business.A wireless web connection set up includes an net support provider, a modem, and a wireless router or a blended wireless modem-router. The up coming stage is to link the numerous hardware components.one. To connect the router to the modem, attach the cables to the router ports in accordance to the labels.



access point vs router

miercuri, 24 iulie 2013

Making an older desktop PC wireless - Computers - Hardware

Okay so your looking for information on making a desktop PC wireless. You'll be happy to know that just about any desktop PC can support a wireless internet connection. Even older desktops can connect to the internet via a wireless internet connection.First, make sure your desktop PC is in good working order. What I mean by good working order is just to make sure the desktop PC is free of unwanted spyware and other harmful files which could make a desktop computer's wireless connection slow down to a crawl. If you plan on making an older desktop PC wireless then you should really scan your computer for spyware and infections because the last thing you want is something stealing all your system resources when you don't have very much to begin with.WHATS NEEDED TO MAKE DESKTOP PC WIRELESSLet's start by assuming you already have an internet service (not dial-up) and are cruising the web with ease. You should have a cable modem connected to your desktop PC. If this is the case , then you're ready to begin your wireless setup. If you don't have an existing internet service and a cable modem then you'd better stop reading this because a wireless internet connection on your desktop PC can't be accomplished legally without them.MAKING PC WIRELESS - WIRELESS ROUTERFirst, before anything, you need to purchase a wireless router. If you've never owned a wireless router before then grabbing the most expensive model probably won't benefit you all that much unless you plan on receiving a wireless internet connection from inside of a multiple story building. In this case a more expensive router will offer a few features that are worth the extra money.Remember when you go ahead and purchase a wireless router in hopes of making your desktop computer wireless you'll be happy to know that you'll be halfway done with your mission for wireless internet on your desktop. The only thing left is a wireless PC adapter.MAKING PC WIRELESS - WIRELESS DESKTOP ADAPTERSIt's a ctually very easy to add a wireless desktop adapter to your comupter's arsenal of computing tools. There are two different types of wireless networking components that you can choose from. They are as follows.1. Wireless USB adapter2. Wireless PCI adapter*both wireless devices are packaged with a setup CD-ROM which quickly installs everything needed to configure and use your PC's wireless internet connection.A wireless USB adapter is the easiest way to make a desktop PC wireless. The cons of using a wireless USB adapter are the signal strength which is considerably weaker than a wireless PCI card. Most people experience no problems with signal strength as long as they stay within range of the wireless router that's sending out the wireless signal.Basically, installing a wireless USB adapter plugs into any available USB port. In reality, it only takes a matter of seconds to plug in a USB adapter and start using the internet without the wires.The second wireless device that ca n make desktop computers wireless is called a wireless PCI (PCI = white slots inside a computer) card adapter. This device enables high performance wireless connectivity for your desktop PC with extended range.Installation is not as hard as you might have thought. Simply remove the side panel from your desktop PC and insert the wireless PCI card into any one of the white slots inside. There is only one way the card can be installed. Reading the directions that are included when you purchase your wireless networking device is by far the best thing you can do to ensure a smooth installation and launch of your wireless connection.MAKING DESKTOP PC WIRELESS



access point vs router

Expert Advice on Selecting the Best Wood Router: A Woodworkers Review of the Hitachi Router KM12VC - Home - Home Accessories

The Hitachi KM12VC Plunge and Fixed Base Router Kit is specifically made for camphering, shaping, trimming, window cutting, groove cutting, and pattern cutting. This wonderful Hitachi Router is an asset for any workshop. The powerful motor of the router is well protected inside a nickel casing. The speed of the motor can be adjusted between 8000 and 24000 to provide perfection to different types of application. The most amazing feature of the product is the electronic speed control device that helps it maintain constant rpm. Quick changes of base can be accomplished with the specially designed clamp for motor release. The router is easy to handle because of its light weight and ergonomic design of the handle. This Hitachi Router can work with both 0.5 inch and 0.25 inch bits.

This awesome tool has been ranked amongst the top 50 routers by Amazon.com. The overall user rating is 4.5 stars, thanks to the fantastic response from the customers.

The Negative Reviews

Unfortunately, some of the users were disappointed by the performance of Hitachi KM12VC Router.

Some customers had mentioned that the plunge base of the router is very stiff, and they had to work on it for several hours before it started working properly. There have been complaints about the two collets that are supplied with the kit. Customers have alleged that their bits have come out suddenly and ruined their work piece on several occasions.

In some cases, the bit and collet have gotten stuck in the router permanently. It could not be removed in spite of all possible efforts. The collet and nut design is also defective. The nut tends to slip off with the slightest amount of torque. One person also mentions that the bearings are of poor quality, and the motor makes a loud noise. Another drawback of this Hitachi router is that the speed control is not labeled with the rpm of the motor. Some customers have serious doubts about the durability of the plastic parts.

The Positive Reviews

More than 90% of the users have strongly recommended this Hitachi Router for any type of precision work. Some of the most significant points mentioned by them are summarized below.

Most users have told us that the quality offered by this router is unthinkable for a product with such low price. The start up is very smooth, and it gains speed quickly. The overall unit is very stable and operates without any noise at all. It can plough through thick wooden planks and blocks without losing speed or straining the motor. The electronic speed control works perfectly and provides ease of operation.

The customers love their new Hitachi router because it gives them the options of both fixed and plunge base. The great power of the motor has also been appreciated my most users. Almost all users have thanked the manufacturer for providing a three year warranty for the product.

For more information and videos on this wood router, check out Hitach Router Reviews:Hitachi KM12VC

The Conclusion

The Hitachi Router KM12VC Plunge and Fixed Base Kit is a perfect blend of performance and affordability. The name of Hitachi is enough to create a sense of trust. Moreover, the product has been strongly recommended by over 90% of the people who used has it. This can be the end of your search for a perfect router.



access point vs router

Call Today and Order Your 15" Refurbished Lap Top Computer

This affordable laptop has all the central features and functions you need in a computer, the HP Pavilion G60-519WM is the laptop everyone is looking for.

With its smooth design and stylish look it covers a wide range of duties.

The 250GB of memory and 2.2 GHz Intel Celeron 900 Processor supports the clearness of the 1366 x 768 panel resolution.

With 3GB of DDR2 RAM for great performance, this device has the ability of leaving behind all the competitors in the market.

You might find interesting that this laptop has a DVD+RW with LightScribe in addition to easy wireless connectivity through Wireless 802.11b/g that keeps you connected.

With Windows 7 you can get online anytime with the high speed wireless LAN.

With a 15.6 Inch High Definition Screen, this laptop is the best of both clarity and portability.

With dimensions of 14.9 x 9.9 x 1.4 inches and weight of mere 6.6 pounds this laptop can be carried anywhere.

It is equipped with Intel GMA 4500M, supporting up to 1309MB of shared graphics memory with Windows 7 Home Premium.

With 250GB SATA HDD at 7200rpm that adds to its appeal, this laptop as all the qualities and features of its division.

Any glitches that were reported with this laptop were small and have been handled by the manufacturer.

Blacking out of screens were registered by consumers for the first few days and the manufacturers soon addressed the problem.

All flawed pieces were exchanged by the manufacturers.

Remember again with Windows 7 you can get online anytime with the high speed wireless LAN.



access point vs router

How to Find the Right Juicer Machine: Three Simple Things You Need to Understand

ing a juicer machine includes a few special challenges. It's not only that you have to wring as much juice from the fruit as you can, which means getting every single drop of juice out of the thick pulp, but you also neet to break through the tough skin. That is basically what defines what a juicer machine does. It applies force to break through that skin and to squeeze out more fruit juice than what one could get using a non-electric lemon squeezer.



Yet there's much more to a juicer machine than simply putting some fruits in and bitting the On button. If you're thinking of getting a citrus juicer, here are some things you should know.



1. Nutrition: Juice made in a juicer machine is healthier than juice created manually. This is simply due to the simple fact that a citrus juicer is more efficient than a hand-operated lemon squeezer, meaning much more of the materials from inside the fruit get extracted. Using a lemon squeezer, you generally just obtain the liquid, which doesn't bring all of that extra pulpy stuff that contains most of the vitamins. For most citrus fruits, these include lots of tiamine, calcium, Vitamin C, potassium, and niacinall very healthy stuff.



2. Different types of juice: When you are looking for a juicer machine, remember that you'll find different kinds of juicers which are designed to make different varieties of juice. The most simple type of citrus juicer functions essentially like a lemon squeezer. It gets the liquid out, and it does not get the pulpy material. Another kind of citrus juicer combines what gets squeezed out together with water to produce a lighter, watery juice. Finally, the most powerful type creates 100% juice. If you're ready to put in a fairly big chunk of dough, you can aquire a juicer machine that includes all of these abilities.



3. Flexible juicer machines: If you buy a nice citrus juicer, then there's a high probability that the very same appliance will be capable of making juice using many different resources, including non-citrus fruit and veggies. If you are interested in getting innovative with your juice making, you might consider purchasing one of the more advanced juicers available on the market. As opposed to a citrus juicer or lemon squeezer, these machines can create juice from virtually any kind of element you want to utilize.



access point vs router