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I passed the CCNA exam in September 2020. The qualification is aimed at those seeking these roles:

  • Entry-level network engineer
  • Network administrator
  • Network support technician
  • Help desk technician

Specifically, the qualification certifies my ability to:

  • Identify the components of a computer network and describe their basic characteristics
  • Understand the model of host-to-host communication
  • Describe the features and functions of the Cisco Internetwork Operating System software
  • Describe LANs and the role of switches within LANs
  • Describe Ethernet as the network access layer of TCP/IP and describe the operation of switches
  • Install a switch and perform the initial configuration
  • Describe the TCP/IP Internet layer, IPv4, its addressing scheme, and subnetting
  • Describe the TCP/IP Transport layer and Application layer
  • Explore functions of routing
  • Implement basic configuration on a Cisco router
  • Explain host-to-host communications across switches and routers
  • Identify and resolve common switched network issues and common problems associated with IPv4 addressing
  • Describe IPv6 main features and addresses, and configure and verify basic IPv6 connectivity
  • Describe the operation, benefits, and limitations of static routing
  • Describe, implement, and verify Virtual Local Area Networks (VLANs) and trunks
  • Describe the application and configuration of inter-VLAN routing
  • Explain the basics of dynamic routing protocols and describe components and terms of Open Shortest Path First (OSPF)
  • Explain how Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP) work
  • Configure link aggregation using EtherChannel
  • Describe the purpose of Layer 3 redundancy protocols
  • Describe basic WAN and VPN concepts
  • Describe the operationof Access Control Lists (ACLs) and their applications in the network
  • Configure Internet access using Dynamic Host Configuration Protocol (DHCP) clients and explain and configure Network Address Translation (NAT) on Cisco routers
  • Describe basic Quality of Service (QoS) concepts
  • Describe the concepts of wireless networks, which types of wireless networks can be built, and how to use Wireless LAN Controllers (WLCs)
  • Describe network and device architectures and introduce virtualization
  • Introduce the concept ofnetwork programmability and Software-Defined Networking (SDN) and describe smart network management solutions such as Cisco DNA Center, Software-Defined Access (SD-Access), and Software-Defined Wide Area Network (SD-WAN)
  • Configure basic IOS system monitoring tools
  • Describe the management of Cisco devices
  • Describe the current security threat landscape
  • Describe threat defense technologies
  • Implement a basic security configuration of the device management plane
  • Implement basic steps to harden network devices