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Exam 200-125 : Interconnecting Cisco Networking Devices: Accelerated (CCNAX)

This training consists of ICND1 and ICND2 content completely, but merged into a single program.

CCNA Composite Exam: The 200-125 CCNAX is the composite exam associated with the Cisco CCNA Routing and Switching certification. Candidates can prepare for this exam by taking the Interconnecting Cisco Networking Devices: Accelerated (CCNAX) program. This exam tests a candidate's knowledge and skills required to install, operate, and troubleshoot a small to medium size enterprise branch network. The topics include all the areas covered under ICND 1 and ICND2 Exams.


Before attending this program, students must have:

  • Basic computer literacy Basic PC operating system navigation skills Basic Internet usage skills Basic IP address knowledge.

At Program Completion

After completing this program, students will be able to:

  • Describe network fundamentals and build simple LANs with an understanding of OSI model, TCP/IP model, TCP, UDP protocols; impact of Firewalls, Access Points, Wireless Controllers, cloud resources on enterprise infrastructure; Apply troubleshooting methodologies
  • Establish Internet connectivity; Configure, verify, and troubleshoot IPv4 addressing and subnetting; Configure, verify, and troubleshoot IPv6 addressing
  • Troubleshoot interface and cable issues (collisions, errors, duplex, speed); Configure, verify, and troubleshoot VLANs (normal/extended range) spanning multiple switches;
  • Interswitch connectivity; Configure, verify, and troubleshoot STP, Layer 2 protocols, Layer 2/Layer 3 EtherChannel
  • Routing fundamentals, components of routing table; Configure, verify, and troubleshoot inter-VLAN routing; static routing and dynamic routing; distance vector and link state routing protocols; interior and exterior routing protocols; Configure, verify, and troubleshoot IPv4 and IPv6 static routing
  • Configure, verify, and troubleshoot single area and multi-area OSPF v2 for IPv4 and OSPF v3 for IPv6 (excluding authentication, filtering, manual summarization, redistribution, stub, virtual-link, and LSAs)
  • Configure, verify, and troubleshoot EIGRP for IPv4 and IPv6 (excluding authentication, filtering, manual summarization, redistribution, stub)
  • Configure, verify, and troubleshoot RIPv2 for IPv4 (excluding authentication, filtering, manual summarization, redistribution)
  • Configure, verify, and troubleshoot PPPoE client-side interfaces using local authentication; PPP and MLPPP on WAN interfaces using local authentication; GRE tunnel connectivity; WAN topologies; Describe WAN access connectivity options e.g., MPLS, Metro Ethernet, Broadband PPPoE, Internet VPN (DMVPN, site-to-site VPN, client VPN)
  • Configure and verify single-homed branch connectivity using eBGP IPv4 (limited to peering and route advertisement using Network command only)
  • Describe basic QoS concepts, e.g., Marking, Device trust, Prioritization (Voice, Video, Data), Shaping, Policing, Congestion management, etc
  • DNS connectivity, Lookup operations, Configure and verify DHCP on a router (excluding static reservations); Troubleshoot client- and router-based DHCP connectivity issues; Configure, verify, and troubleshoot basic HSRP; NAT; NTP operations
  • Configure, verify, and troubleshoot port security; common access layer threat mitigation techniques; troubleshoot IPv4 and IPv6 access list; Verify ACLs using the APIC-EM Path Trace ACL analysis tool; basic device hardening; Describe device security using AAA with TACACS+ and RADIUS
  • Configure and verify device-monitoring protocols—SNMP v2, SNMP v3, Syslog; Troubleshoot network connectivity issues using ICMP echo-based IP SLA; Configure and verify initial device configuration & device management; Perform device maintenance; Use Cisco IOS tools to troubleshoot and resolve problems; Describe network programmability in enterprise network architecture

Skills Measured

The following information provides general guidelines for the content likely to be included on the exam: 

  1. ExamTopicsPDFNetwork Fundamentals  [15%]
  2. LAN Switching Technologies  [21%]
  3. Routing Technologies  [23%]
  4. WAN Technologies  [10%]
  5. Infrastructure Services  [10%]
  6. Infrastructure Security  [11%]
  7. Infrastructure Management  [10%]

However, other related topics may also appear on any specific delivery of the exam. In order to better reflect the contents of the exam and for clarity purposes the guidelines below may change at any time without notice.  You are advised to consult here for information about latest exam topics of CCNAX.

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