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VTP pruning

VLAN Trunking Protocol (VTP) pruning is a feature in Cisco switches, which stops VLAN update information traffic from being sent down trunk links if the updates are not needed.

ARP

The main task of ARP or Address Resolution Protocol is to map a known IP address to a MAC layer address.

MAC address

MAC, or Media Access Control, uniquely identifies a device on the network. It is also known as physical address or Ethernet address. A MAC address is made up of 6-byte parts.

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Hell yeahh! Network engineering skills and ability to code/script is an awesome recipe to succeed as an engineer. It's in supreme demand across the industry, especially when everyone is trying to scale up. There more openings and network automation. Still TCL and PERL has demands.

Python went to top today. Python become most wanted programming. Python is now in demand especially in first world countries like United States and part of Europe. It's now the language of the web and compete along with PHP. In general, network automation skills are in high demand. This is especially true at large-scale network infrastructures (e.g., IaaS and web-scale providers). Having the ability to control traffic flows via the automation in place reaps benefits for the network owner.

Are you a manual tester? Learning automation always helps. It will build your profile plus you can learn some cool programming.

Protocol testing the functionality of protocols implemented on a networking product like STP on a switch, routing protocols on a router. It can also include testing the functionality of protocols on network and security applications like SNMP, WPA on supplicants etc. The design documents are referred for developing the test plan.

Once you are aware of networking and protocol testing in addition automation. If you write test cases and testplan. Then you are the king of the networking.

Learn networking TCL PERL PYTHON UNIX and Testing everything on a single page. It's update daily and gonna have all topics soon. Update yourself .