Cisco Systems CCNA – Network Administrator

CCNA Certified Network Administrator

Cisco Systems CCNA – Network Administrator

  1. Network Fundamentals:
  • Introduces basic networking concepts, including network types (LAN, WAN, WLAN), OSI model, and TCP/IP.
  • Learns about IP addressing and subnetting for the correct configuration of networks.
  • Covers fundamental routing and switching concepts to enable effective data communication between devices.
  1. Network Access:
  • Exposes practices for implementing and configuring VLANs on network devices.
  • Explains how to configure Layer 2 switches to ensure efficient connectivity within your network.
  • Deepens the security of physical device ports to protect unauthorized access to your network.
  1. IP Connectivity:
  • Teaches how to configure static and dynamic routing to allow packets to be routed correctly in the network.
  • Explores the concepts of OSPF (Open Shortest Path First) and illustrates the configuration of IPv6 addresses.
  • Provides the skills needed to troubleshoot IP connectivity issues that may occur in a network.

4.IP Services:

  • Explains how to configure a DHCP server to automatically assign IP addresses to devices on the network.
  • Explains how Network Address Translation (NAT) works to allow internal hosts to access external resources on the Internet.
  • Describes the use of Access Control Lists (ACLs) to control the flow of traffic on the network and ensure data security.

Each module provides essential knowledge that enables IT professionals to design, implement and manage complex networks in compliance with Cisco standards.

  • In network management, IT professionals are responsible for designing, implementing, and maintaining computer networks to ensure reliable and secure connectivity between devices. This includes:
  • Network design: Define the optimal network architecture to meet business needs, considering factors such as capacity, scalability and security.
  • Configuration and Installation: Set up and configure network hardware and software such as routers, switches, firewalls, and monitoring systems to ensure proper network operation.
  • Performance Monitoring: Constantly monitor network traffic, resource usage and overall performance to identify any issues or inefficiencies.
  • Security Management: Implement security measures such as firewalls, virtual private network (VPNs), and intrusion detection tools to protect your network from external and internal threats.
  • Troubleshooting: Identify and promptly resolve any network malfunctions through thorough diagnosis and corrective action.
  • Updates and patching: Keep firmware, software and security patches updated to protect your network from known vulnerabilities.
  • User Management: Create user accounts with appropriate privileges, manage network access, and ensure compliance with company cybersecurity policies.

Effective network management requires advanced technical skills, in-depth knowledge of industry standards (such as Cisco CCNA), and a solid understanding of the fundamental principles of computer networking.