CCNA Articles

Wildcard masks define the subset of the 32 bits in the IP address that must be matched. Wildcards are used with access lists to specify a host, network or part of a network. Wild card masks work exactly the opposite of subnet masks. In subnet masks, 1 bits ...

Cisco IOS Upgradation I have long been engaged in computer network management, in the CISCO router's long-term daily maintenance and management practices has accumulated some experience.  Are now summarized a CISCO router IOS image upgrade several methods for a vast network of enthusiasts, or colleagues for reference. ...

By: Chris Bryant, CCIE #12933 There are plenty of articles out there about how to prepare for the CCNA exam. However, there are also things you can do to increase your chances of success on exam day during the most important part of the entire process -- ...

Information Requires By Router The router needs the following key information: Destination Address  -   The destination (typically an IP  address ) of the information being sent. Source of Information   -   Where the information came from (typically an IP Address) Possible Routes  -  Likely routes to get from source to destination Best Route   -  The best ...

Q1)   What is routing ? Ans  Routing is the process in which itmes are forwarded fromone location to another. Routing is hop-by-hop paradigm.   Q2)   Describe routing & Switching in Cisco Router. Ans  Routing function is the mechanism of learning and maintaining awareness of the network ...

Q1 ) What is the Cisco Catalyst store-and-forward switching method ? Ans In this mode switches receives the entire frame before it forwards it. The switch reads the cyclic redundancy check (CRC) to make sure the frame is not bad. If the frame is ...