Free Training Of CCNA and MCSE

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When there is less physical memory(Hardware Ram) than needed , then some virtual memory (virtual RAM) is created on the disk.When there is a limit set to the size of virtual memory usage and there is not enough of it present there is a warning that frequently comes “Virtual Memory too low”. Solution 1 : This problem occurs when physical RAM Plus Virtual RAM (usually created on hard disk) together are not sufficient to take care of the currently needed RAM size, or this error is arise. This usually happens when some fixed upper limit for Virtual Memory has been set. To solve this problem, you can either upgrade you physical RAM on your computer (recommended), or you can set the Virtual Memory to system managed size or you can do both. Setting Virtual Memory to system managed size means windows will set it to higher size whenever needed automatically for this. Right click on My computer –> go to properties> go to advanced tab, click on performance settings, now click on advanced,

There are many Simulators available in Market like GNS3, Packet Tracer and Boson etc.I will Prefer and refer Packet Tracer because it is easy to use and lab output also nearest to actual. Download the Packet Tracer(with Tutorials) from the following link, in next post i will post 1st lab of CCNA. http://www.mediafire.com/?bl0b76swpbae2q8

What is a Router? Router is a device which makes communication possible between two or more different networks present in same or different geographical locations. A router is a special type of computer. It has the same basic components as a standard desktop PC. However, routers are designed to perform some very specific functions. Just as computers need operating systems to run software applications, routers need the Internetwork Operating System software (IOS) to run configuration files. These configuration files contain the instructions and parameters that control the flow of traffic in and out of the routers. Other Vendors apart from Cisco Many companies are manufacturing Router: • Nortel • Juniper • Dlink • Linksys • 3Com etc. Router Classification: 1-FIXED ROUTER : (Non Upgradeable cannot add and remove the Ethernet or serial interfaces)   Doesn’t have any slot 2- MODULAR ROUTER :    (Upgradeable can add and remove interfaces as per the requirement)      Number of slot

There are many fake and unverified SMS is daily circulating in the market,Its also noted that at the end of every fake SMS contain that Sentence "Plz Forward that Msg :-)" Lets We See Some Fake and Irresponsible SMS and Prove them that are Fake and Just Frustrating Peoples. No.1(How to Detect Hidden Camera in Trial Room? ) How to Detect Hidden Camera in Trial Room? Please forward this to your friends to educate this issue to the public......To prevent our innocent ladies from HIDDEN CAMERA...... Come and Join your hands with "Just Share" It ============================ Read This Message.....!!!! How to Detect Hidden Camera in Trial Room? In front of the trial room take your mobile and make sure that mobile can make calls........ Then enter into the trail room, take your mobile and make a call..... If u can't make a call......!!!! There is a hidden camera...... This is due to the interference of fiber optic cable during the signal transfer......

VLSM :Variable Length Subnet Mask. Also called as Subnetting of Subnetting.Subnetting is used to break the network equally.If these networks are subnetted again, different subnets may have different subnet mask values, also called as Variable length subnet mask. With VLSM, IP addressing scheme is used more efficiently without wastage. we effectively reduce IP's wastege.(See Wan Links of above diagram) Route Summarization: Generally Supernetting concept is used in router advertisements, called as route summarization,combines network addresses of same class into one single address to reduce the size of the routing table.It is done on core router to reduce the size of routing table.It is implemented by ISP (internet service providers). For example , you may want to supernet the networks 192.168.10.0 and 192.168.11.0 to make a single, large network. Following two lines are the conversions of the above network addresses to binaries and the last line is the new subnet mask. 110