Welcome to my profile :) Lets you test me purification of my work is unafraid and I am looking for opportunity.Lets show my profile:) But when I worked on Mikrotik Router in Bangladeshi market place,then I have to faced a problem.In every industry,they use Mikrotik Router for routing protocol.But for switching,they use Cisco Manageable Switch.For this reason,I have to learn about Cisco,to do a complete course on Cisco Certified Network Associate(CCNA). Also I have done Mikrotik Certified.My enrolled number is (1901NA0013) (MTCNA,MTCRE). Mikrotik Certified MTCNA, MTCRE. Cisco CCNA Routing and Switching Subnetting Super Netting VLAN and Inter VLAN Password Break/Reset Telnet/SSH Configure DHCP Server Configure NAT VTP (Virtual Trunking Protocol) STP (Spanning Tree Protocol) HSRP (Hot Standby Routing Protocol) VLSM(Variable Length Subnet Mask) Ether channel Cisco Port Security Equal and Unequal Load Balancing EIGRP BGP OSPF Frame Relay