Solving many practice questions after you study the CCNA theory is the way to go for mastering the CCNA material and get prepared for passing the exam. The following practice exam questions are for the Cisco CCNA 640-802 exam and will definitely help you towards your certification efforts.

Question 1: What command will show you the routed protocols running on your Cisco router?
Answer: show protocols
Question 2: What type of cable should you use to connect to the console port of a Cisco router?
Answer: Rollover cable
Question 3: What type of ethernet cable should you use to connect a Hub and a Switch or two Switches?
Answer: Crossover cable
Question4: RIP uses bandwidth and delay to the determine the best path to a destination network (True/False)
Answer: False. RIP uses only hop count
Question 5: Which statement about MAC addresses is correct?
A. The MAC address can never be changed.
B. A MAC address is represented by binary digits that are organized in pairs.
C. A MAC address is a number in hexadecimal format that is physically located on the NIC.
D. It is not necessary for a device to have a unique MAC address to participate in the network.

Answer: C
Question 6: Which of the following is an IOS command that can be used to increase the security of unused switch ports?
A. Port security
B. Mac-secure
C. Firewall
D. Shutdown

Answer: D
Question 7: IP addresses are represented by:
A. 16-bit decimal numbers
B. 32-bit binary numbers
C. 8 sets of 4-bit decimal numbers
D. 8-bit binary numbers

Answer: B
Question 8: What does the command ip route 192.168.50.0 255.255.255.0 10.2.1.3 specify?
A. The router should use network 192.168.50.0 to get to address 10.2.1.3.
B. Both 192.168.50.0 and 10.2.1.3 use a mask of 255.255.255.0.
C. You want the router to trace a route to network 192.168.50.0 via 10.2.1.3.
D. The router should use address 10.2.1.3 to get to devices on network 192.168.50.0.
Answer: D
Question 9: Which of the following protocols is an example of an exterior gateway protocol?

A. BGP
B. RIP
C. EIGRP
D. OSPF
Answer: A
Question 10: What does the configuration register 0×2102 do?

Answer: Instructs the router to look in NVRAM for the boot sequence.

 

About the Author

Harris Andrea is a Cisco Certified CCNA, CCNP and CCSP with more than 10 years experience in the networking field. He is currently employed as a senior network engineer in an ISP company in Europe.

For CCNA certification training, Harris Andrea Recommends this CCNA CBT Training to pass your CCNA exam guaranteed.

Spyware is malicious software (malware) that installs itself or runs on your computer without providing you with adequate notice, consent or control. It can monitor your online behaviour or collect your sensitive personal information such as personally identifiable information and passwords. It could as well display annoying pop-up advertisements, change your computer settings or cause your computer to run slowly. Because spyware does not obtain your consent before installing or running on your computer, and may not immediately display any noticeable symptoms after it infects your computer, you might not actually be aware of its presence in your PC.Spyware and other malware could be introduced into your computer system from many sources. They are most commonly installed through free software downloads, such as file sharing, screen savers and search toolbars. Also, they could be installed by websites, downloaded programs, or software you might install from a CD, DVD, external hard disk, or other removable media. Some spyware can be installed from a website through an embedded script, or program in a webpage while some potentially unwanted software require your help to install through web pop-ups or free software that requires you to accept a downloadable file. In other words, you can get spyware installed in your computer without knowing it.

Let us take a look at the signs you should look out for to know if your computer has been infected by spyware or other malware: 1. If you notice new toolbars, links, favorites or bookmarked web pages, which you did not intentionally add to your web browser, you should know that spyware has sneaked into your computer. 2. When your default homepage, mouse pointer or search program changes without your intervention, it indicates the presence of spyware. 3. If you typed the URL for a specific website (for instance, a search engine), but you are redirected to another web site without notice, is a typical action of potentially unwanted software. 4. If pop-up advertisements are constantly displayed on your screen, even when you are not currently working on the internet, your spyware alarm should be set off. 5. Spyware may also cause your computer to suddenly start to run very slowly.

It is possible to not have any of these symptoms but yet, your computer might still be infected by spyware. You are therefore expected to take proactive steps to keep this form of malware at bay. By diligently taking the actions below, you are ensuring that you protect your computer from spyware infection:  Run Up to Date Anti-Spyware Software - anti spyware software helps prevent malicious software, spyware, and other potentially unwanted software or adware from installing itself or running on your computer. Antispyware program can also perform a computer scan to locate and automatically remove malware that might already be installed on your PC. Windows Defender is a version of anti-malware software that is shipped together with windows operating system but there are other sources of anti spyware software including those which are customizable to handle all forms of malicious software.  Keep Your Computer Up to Date - always update the security features of your computer. To do this automatically, you need to turn your windows automatic updater on at all times. Similarly, you must visit your anti-spyware software publisher’s website often to check for and download updates of your software, to your computer.  Review License Agreements Before Installing Software - before you download any free software such as file sharing programs or screen savers, please read the license agreement carefully. Do not automatically agree to download any software offered by any website; rather look out for clauses where you might be required to accept advertisements and pop-ups from the company. In some instances, the software publisher may require you to agree that the program will send certain kinds of information back to them. In such cases, if you do not trust the website, refuse to download such software to avoid installing spyware in your computer.  When Pop-Up Won’t Close Except You Take An Action - sometimes a website could repeatedly display pop-ups asking you to install a toolbar, change your home page or take other similar action. The first action to take on such a situation is to try to close the pop-up browser window, if the pop-up still appears, right-click the internet explorer button in the task bar at the bottom of your screen and then click close group. If every effort to close the pop-up window fails, as a last resort, close any other program you have open and restart your computer. No effort should be spared in getting rid of spyware because of the enormous threat it poses to the health and efficiency of your PC and your online safety. I strongly recommend that you follow these simple steps diligently to achieve the desired results.
 

About the Author

Mike Okpulor is a computer and online safety expert. He has devoted his time to help numerous computer users from all over the world to achieve the best optimized performance for their PCs, and maintain the integrity of their personal information while working online. To receive further up to date information and free tips on maintaining online safety and stopping malware attack; Visit: http://pchealthsoftware.blogspot.com/2009/05/protect-your-computer-from-spyware.html

by JR Lang

For computer gaming a powerful computer is necessary, and includes specific features, like, a fast processor, lots of RAM and great graphics capabilities. Several Dell computer models are built for gaming, but a basic formula to follow for any model you choose is Graphics + RAM + Processor Speed + Screen/Display will deliver a great gaming experience. These features are necessary for those who game often and serious gamers would never settle for less. They are also very useful for any power users because of their great graphics capabilities, such as, movie editing, watching and other media and entertainment.

6 Must Have Computer Features for Gaming

1. Monitor/Display
Obviously one of the best features of computer games is the stunning graphics and a good large monitor will deliver a fantastic gaming experience. Another factor to consider is the response time and a high refresh rate of the display in order to have smooth motion in the display. With today’s superb LCD monitors, in a variety of sizes, the images and gaming is better than ever.

2. Processor
A fast high performance processor is necessary for gaming. Some of the best processors are Intel Core 2 Duo, Core 2 Quad and Core 2 Extreme.

3. Sound
Sound is important for gaming and delivered via quality sounds card, preferably those that have accelerated technology that offer powerful sound without putting too much of a load on the CPU. Good speakers, such as Digital 5.1 are also a must have, with surround sound being the best option for gaming.

4. Memory - RAM
Having enough RAM memory is crucial for the best gaming experience as RAM regulates the amount of programs that can run on a computer without running into slow downs and crashes. Since game software is usually quite large at least 2GB to 4GB of 800MHz or 1,066MHz DDR2 memory is recommended for the optimal gaming experience.

5. Graphics - VRAM
For gaming you must have a high performance dedicated graphics card with its own power supply for optimal display of the graphics that come with modern games and especially for 3D gaming. VRAM memory is a special form of memory that is dedicated to video, graphics and all visuals and is specified with the graphics card. Some of the best options in graphics cards are, ATI Radeon and Nvidia GeForce.

6. Game Pad
The game pad you choose can greatly enhance the gaming experience. For this feature usually you get what you pay for so get the best one you can afford.
 

About the Author

Read more computer guides, such as, complete list of computer terms, Dell model reviews, memory installation and more. Shop for all brands and models of desktops, including, Apple, Dell, HP and more and all accessories at cheap prices at Dell Computers as well as Cheap Laptops for gaming.

The new file extension being talked about, 7z, is the new backup, archive - compressed file format, providing high compression ratio. This then allows you to save more on limited space.

File extension 7z, features Open architecture which is so convenient as it can support any new compression method. It also features a High compression ratio with a very strong AES-256 encryption. One of the other highlights of the file extension 7z, is that it can support very large files with sizes up to 16000000000 GB, WOW!!

The following methods currently are integrated into the File Extension 7z:

By Aoibheann Waller

On your search to find the best mini notebook laptop you will come across several different selections. The choice you make in the end will depend on your preference. What you like in a laptop will also decide the total cost as well. Finding the right one can be difficult if you don’t know exactly what you want. When you begin your search you may want to check out the five most popular mini notebook laptops that are out right now and go from there.

The first notebook laptop to consider, and one of the most popular, would be the Acer Aspire. The Acer Aspire is popular for several reasons. The Acer sports a wide 9 inch widescreen which is perfect if you plan to use this laptop a lot. It has sharp and bright color that is adjustable to help you see better. Acer is a little bit larger than the other mini notebooks but not by much. The Aspire is the best mini laptop if you want to find a smaller notebook but still keep a lot of your great features.

The second mini laptop that is growing in popularity is the Asus Eee PC 1000. This model is larger than the original Asus notebooks that are already out, but it is still considered a mini. It has the same Intel Atom processor that you can find in all the other Asus models. One good feature to the Asus is that it runs less on energy, so your battery lasts longer while you are out.

The third mini to consider is the Dell Inspiron Mini 9 inch. One good thing about the Dell Inspiron mini laptop is the fact that it can be upgraded with a 16GB drive for more storage. The battery lasts for about 31/2 hours without charging. This is not quite as long as other batteries, but it’s still competitive. With Dell Inspiron you can personalize your notebook and build it from scratch only adding what you want to put into your mini.

The fourth mini to consider is the HP mini laptop. One problem that consumers seem to run into when searching for a HP mini  is the price. While they do run a bit more expensive they still do not offer anything extraordinary that would settle your decision to go with an HP. If you choose an HP then it is because it has the features you are looking for. The HP mini’s come with a full size keyboard.

The final notebook to consider is the Sony VAIO. The Sony mini comes with an 8.9 inch screen and features a big 80GB of hard drive. The Sony mini notebook weighs in at a little over three pounds. It also features the Windows Vista home Basic.

If you are still having a hard time deciding on which mini notebook laptop to purchase, make yourself a list of what is most important to you. Then you can use that list to rule out the ones that will not provide what you need. Once you have narrowed down your list then you can make your mind up based on the one notebook laptop that has everything you need.

Take a look at the Mini Laptop Computers on offer: http://www.minilaptopcomputers.net

Article Source: http://EzineArticles.com/?expert=Aoibheann_Waller