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| - | CCNA | + | ====== |
| + | |||
| + | ===== **Exam:** CCNA 200-301 \\ ===== | ||
| + | **Time:** 120 minutes \\ | ||
| + | **Focus:** Modern enterprise networking – routing/ | ||
| + | |||
| + | The exam is built around **six domains**: | ||
| + | |||
| + | * Network Fundamentals (20%) | ||
| + | * Network Access (20%) | ||
| + | * IP Connectivity (25%) | ||
| + | * IP Services (10%) | ||
| + | * Security Fundamentals (15%) | ||
| + | * Automation and Programmability (10%) | ||
| + | |||
| + | ---- | ||
| + | |||
| + | ===== 1. Network Fundamentals (20%) ===== | ||
| + | |||
| + | **Goal:** Understand what a network is, what the parts do, and how IP addressing works. | ||
| + | |||
| + | === Devices & roles === | ||
| + | * Routers, Layer 2/3 switches | ||
| + | * Next-gen firewalls and IPS | ||
| + | * Access points and wireless controllers | ||
| + | * Endpoints and servers | ||
| + | * PoE (Power over Ethernet) | ||
| + | |||
| + | * **Topologies & designs** | ||
| + | * 2-tier vs 3-tier | ||
| + | * Spine-leaf | ||
| + | * WAN | ||
| + | * SOHO (small office / home office) | ||
| + | * On-prem vs cloud | ||
| + | |||
| + | * **Cabling & interfaces** | ||
| + | * Single-mode fiber, multimode fiber, copper | ||
| + | * Shared media vs point-to-point | ||
| + | * Common issues: collisions, errors, speed/ | ||
| + | |||
| + | * **IP basics** | ||
| + | * IPv4 addressing and subnetting | ||
| + | * Private IPv4 ranges | ||
| + | * IPv6 addressing and prefixes | ||
| + | * IPv6 types: unicast (global, ULA, link-local), | ||
| + | |||
| + | * **Clients & wireless** | ||
| + | * Verify IP parameters on Windows, macOS, Linux | ||
| + | * SSID, non-overlapping Wi-Fi channels, RF basics | ||
| + | * Wireless encryption basics | ||
| + | |||
| + | * **Virtualization & switching** | ||
| + | * Server virtualization, | ||
| + | * MAC learning and aging | ||
| + | * Frame switching and flooding | ||
| + | * MAC address table concepts | ||
| + | |||
| + | ---- | ||
| + | |||
| + | ===== 2. Network Access (20%) ===== | ||
| + | |||
| + | **Goal:** Get devices onto the LAN and WLAN safely and correctly. | ||
| + | |||
| + | * **VLANs** | ||
| + | * Data and voice VLANs | ||
| + | * Default VLAN | ||
| + | * VLANs spanning multiple switches | ||
| + | * Inter-VLAN connectivity | ||
| + | |||
| + | * **Trunks** | ||
| + | * 802.1Q tagging | ||
| + | * Native VLAN | ||
| + | * Access vs trunk ports | ||
| + | |||
| + | * **Neighbor discovery** | ||
| + | * Cisco Discovery Protocol (CDP) | ||
| + | * Link Layer Discovery Protocol (LLDP) | ||
| + | |||
| + | * **Link aggregation** | ||
| + | * EtherChannel (LACP) at Layer 2 / Layer 3 | ||
| + | |||
| + | * **Spanning Tree (Rapid PVST+)** | ||
| + | * Root bridge, root ports, other port roles | ||
| + | * Port states and roles | ||
| + | * PortFast | ||
| + | * Root guard, loop guard, BPDU guard, BPDU filter | ||
| + | |||
| + | * **Wireless access** | ||
| + | * Cisco wireless architectures and AP modes | ||
| + | * Physical connections: | ||
| + | * WLAN GUI basics: SSID creation, security, QoS profiles, advanced options | ||
| + | |||
| + | * **Device management access** | ||
| + | * Telnet, SSH, HTTP, HTTPS, console | ||
| + | * TACACS+ / RADIUS | ||
| + | * Cloud-managed devices | ||
| + | |||
| + | ---- | ||
| + | |||
| + | ===== 3. IP Connectivity (25%) ===== | ||
| + | |||
| + | **Goal:** Understand how routers make forwarding decisions. | ||
| + | |||
| + | * **Routing table components** | ||
| + | * Routing protocol code | ||
| + | * Prefix and network mask | ||
| + | * Next hop | ||
| + | * Administrative distance | ||
| + | * Metric | ||
| + | * Gateway of last resort | ||
| + | |||
| + | * **Forwarding decisions** | ||
| + | * Longest prefix match | ||
| + | * Administrative distance | ||
| + | * Routing protocol metric | ||
| + | |||
| + | * **Static routing (IPv4 and IPv6)** | ||
| + | * Default route | ||
| + | * Network route | ||
| + | * Host route | ||
| + | * Floating static routes | ||
| + | |||
| + | * **OSPFv2 (single area)** | ||
| + | * Neighbor adjacencies | ||
| + | * Point-to-point networks | ||
| + | * Broadcast networks and DR/BDR | ||
| + | * Router ID | ||
| + | |||
| + | * **First Hop Redundancy** | ||
| + | * Purpose: keep default gateway available using redundancy concepts | ||
| + | |||
| + | ---- | ||
| + | |||
| + | ===== 4. IP Services (10%) ===== | ||
| + | |||
| + | **Goal:** Know the common network services that support connectivity. | ||
| + | |||
| + | * **NAT** | ||
| + | * Inside source NAT (static and pools) | ||
| + | |||
| + | * **Time and naming** | ||
| + | * NTP client and server roles | ||
| + | * Role of DHCP and DNS | ||
| + | |||
| + | * **Monitoring and logging** | ||
| + | * SNMP in network operations | ||
| + | * Syslog facilities and severity levels | ||
| + | |||
| + | * **DHCP operations** | ||
| + | * DHCP client | ||
| + | * DHCP relay | ||
| + | |||
| + | * **QoS basics** | ||
| + | * Classification and marking | ||
| + | * Queuing and congestion management | ||
| + | * Policing and shaping | ||
| + | |||
| + | * **Remote access and file services** | ||
| + | * Configure network devices for SSH access | ||
| + | * TFTP / FTP capabilities and functions | ||
| + | |||
| + | ---- | ||
| + | |||
| + | ===== 5. Security Fundamentals (15%) ===== | ||
| + | |||
| + | **Goal:** Protect devices, data, and users. | ||
| + | |||
| + | * **Security concepts** | ||
| + | * Threats, vulnerabilities, | ||
| + | * Mitigation techniques | ||
| + | |||
| + | * **Security program elements** | ||
| + | * User awareness and training | ||
| + | * Physical access control | ||
| + | |||
| + | * **Device access security** | ||
| + | * Local passwords for device access | ||
| + | * Password policy (management, | ||
| + | * Alternatives: | ||
| + | |||
| + | * **VPNs** | ||
| + | * IPsec remote-access VPNs | ||
| + | * IPsec site-to-site VPNs | ||
| + | |||
| + | * **Access control** | ||
| + | * Configure and verify ACLs | ||
| + | |||
| + | * **Layer 2 security** | ||
| + | * DHCP snooping | ||
| + | * Dynamic ARP inspection (DAI) | ||
| + | * Port security | ||
| + | |||
| + | * **AAA concepts** | ||
| + | * Authentication | ||
| + | * Authorization | ||
| + | * Accounting | ||
| + | |||
| + | * **Wireless security** | ||
| + | * WPA, WPA2, WPA3 | ||
| + | * Configure WLAN (GUI) with WPA2-PSK | ||
| + | |||
| + | ---- | ||
| + | |||
| + | ===== 6. Automation and Programmability (10%) ===== | ||
| + | |||
| + | **Goal:** Understand how automation and APIs change network management. | ||
| + | |||
| + | * **Automation impact** | ||
| + | * Why automation matters for consistency, | ||
| + | |||
| + | * **Traditional vs controller-based networking** | ||
| + | * Comparison of management and control methods | ||
| + | |||
| + | * **SDN and controller-based architecture** | ||
| + | * Overlay vs underlay vs fabric | ||
| + | * Separation of control plane and data plane | ||
| + | * Northbound and southbound APIs | ||
| + | |||
| + | * **AI / ML in network operations** | ||
| + | * Generative and predictive uses for monitoring and troubleshooting | ||
| + | |||
| + | * **REST-based APIs** | ||
| + | * Authentication types | ||
| + | * CRUD operations | ||
| + | * HTTP verbs | ||
| + | * Data encoding formats | ||
| + | |||
| + | * **Configuration management tools** | ||
| + | * Capabilities of Ansible | ||
| + | * Capabilities of Terraform | ||
| + | |||
| + | * **JSON** | ||
| + | * Recognize JSON-encoded structures and fields | ||
| + | |||
| + | |||
| + | == Links == | ||
| + | |||
| + | [[https:// | ||