CCNA

CCNA, or Cisco Certified Network Associate, is Cisco Systems’ entry‑level professional certification. It is designed to validate foundational networking knowledge needed to install, operate, and troubleshoot small to medium enterprise networks, including LANs, WANs, and basic network security. The certification is aimed at network administrators, technicians, and engineers beginning their careers in networking.

History and scope: In 2020 Cisco consolidated its associate and specialist tracks into a single CCNA exam, reflecting a broad-based foundation for enterprise networking. The current CCNA curriculum covers six domains: Network Fundamentals, Network Access, IP Connectivity, IP Services, Security Fundamentals, and Automation and Programmability. Topics include IPv4 and IPv6, subnetting, VLANs, routing and switching concepts, security principles, and basic automation concepts.

Exam details: The CCNA exam is a single, proctored test taken at testing centers or via online proctoring. It combines multiple-choice, multiple-select, and simulation or drag-and-drop questions. The duration is typically around 120 minutes, and fees vary by region.

Audience and career relevance: The CCNA serves as a foundational credential for entry-level networking roles. It is commonly pursued by aspiring network administrators, support technicians, and engineers who seek formal validation of core networking skills and a pathway to more advanced Cisco certifications.

Prerequisites and related certifications: There are no formal prerequisites for CCNA, though familiarity with basic IT concepts and hands-on practice with networking gear is beneficial. After CCNA, professionals often advance to CCNP Enterprise or pursue higher-level Cisco certifications such as CCIE, or explore other vendor certifications.

Renewal: The CCNA credential is valid for three years. Recertification can be achieved by passing a qualifying Cisco exam or by earning continuing education credits before the expiration date.