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Exam Information
Official specifications published by Cisco
Exam Format
90 min
50-60
Associate
Registration
$295 USD
Pearson VUE
[object Object], [object Object]
Validity
3 years
Pass any current CCNA exam before expiration; Pass current CCNP exam or higher; Pass CCIE lab exam
200-125 Exam Topics and Domains
200-125 is organized into 7 weighted domains. Expect to work with Cisco IOS, Cisco Catalyst switches, EIGRP, APIC-EM, and more.
1
Network Fundamentals
15%
Compare and contrast OSI and TCP/IP models
- OSI 7-layer model
- TCP/IP 4-layer model
- Layer responsibilities
- Protocol mapping
- Encapsulation process
- Layer identification
- Protocol operation at each layer
- PDU names at each layer
- Encapsulation/de-encapsulation
- TCP
- UDP
- IP
- Ethernet
- Identify the seven layers of OSI model
- Map protocols to appropriate OSI layers
- Explain encapsulation and de-encapsulation
Compare and contrast TCP and UDP protocols
- Connection-oriented vs connectionless
- Three-way handshake
- Port numbers
- Reliability mechanisms
- Flow control
- Windowing
- Protocol characteristics
- When to use TCP vs UDP
- Port number ranges
- TCP flags and operations
- TCP
- UDP
- Distinguish between TCP and UDP operations
- Explain TCP three-way handshake
- Identify common TCP and UDP port numbers
Describe the impact of infrastructure components in an enterprise network
FirewallsAccess pointsWireless controllers
- Network infrastructure design
- Component placement
- Traffic flow
- Infrastructure component roles
- Enterprise network design
- Component interaction
- Cisco ASA
- Cisco WLC
- Cisco Lightweight AP
- Explain role of firewalls in enterprise networks
- Describe wireless infrastructure components
- Identify appropriate component placement
Describe the effects of cloud resources on enterprise network architecture
Traffic path to internal and external cloud servicesVirtual servicesBasic virtual network infrastructure
- Cloud computing models
- Network virtualization
- Cloud connectivity options
- Cloud architecture impact
- Traffic flow changes
- Virtual infrastructure
- AWS
- Azure
- Cisco Cloud Services
- Explain cloud resource impact on network design
- Describe virtual network infrastructure
- Identify cloud connectivity patterns
Compare and contrast collapsed core and three-tier architectures
- Access layer
- Distribution layer
- Core layer
- Collapsed core design
- Three-tier design
- Scalability
- Redundancy
- Architecture selection criteria
- Layer functions
- Design trade-offs
- When to use each architecture
Cisco Catalyst switches
- Identify three-tier architecture components
- Explain collapsed core benefits and limitations
- Select appropriate architecture for given scenarios
Compare and contrast network topologies
StarMeshHybrid
- Physical topologies
- Logical topologies
- Topology advantages and disadvantages
- Topology identification
- Topology selection for scenarios
- Failure impact analysis
- Identify different network topologies
- Compare topology characteristics
- Select appropriate topology for requirements
Select the appropriate cabling type based on implementation requirements
- UTP categories (Cat5e, Cat6, Cat6a)
- Fiber optic (single-mode, multi-mode)
- Coaxial
- Cable distance limitations
- Bandwidth requirements
- Crossover vs straight-through
- Cable selection for distance
- Cable selection for bandwidth
- Fiber vs copper decisions
- Cable pinout configurations
- Identify cable types and specifications
- Select appropriate cable for distance requirements
- Understand cable bandwidth limitations
Apply troubleshooting methodologies to resolve problems
Perform and document fault isolationResolve or escalateVerify and monitor resolution
- OSI model troubleshooting approach
- Divide and conquer method
- Top-down vs bottom-up
- Documentation best practices
- Troubleshooting methodology steps
- Scenario-based troubleshooting
- Proper documentation
- Apply systematic troubleshooting approach
- Document troubleshooting process
- Determine escalation points
Configure, verify, and troubleshoot IPv4 addressing and subnetting
- Binary to decimal conversion
- Subnet mask calculation
- CIDR notation
- VLSM
- Usable host addresses
- Network and broadcast addresses
- Subnetting practice
- Subnet calculations
- VLSM scenarios
- IP address assignment
- Subnet mask determination
- Binary operations
- Calculate subnet masks and addresses
- Implement VLSM designs
- Troubleshoot IP addressing issues
Compare and contrast IPv4 address types
UnicastBroadcastMulticast
- Address classification
- Communication patterns
- Address ranges
- Address type identification
- Appropriate use cases
- Address range classification
- Distinguish between address types
- Identify appropriate use for each type
- Understand multicast fundamentals
Describe the need for private IPv4 addressing
- RFC 1918 private ranges
- Public vs private addressing
- IPv4 address exhaustion
- NAT requirement
- Private address benefits
- Private address ranges
- When to use private addresses
- NAT interaction
- Address conservation
- Identify private IPv4 address ranges
- Explain need for private addressing
- Understand NAT relationship
Identify the appropriate IPv6 addressing scheme to satisfy addressing requirements
- IPv6 address format
- Address abbreviation
- IPv6 address types
- Address assignment methods
- IPv6 subnetting
- IPv6 address selection
- Address scheme design
- IPv6 prefix allocation
- Design IPv6 addressing schemes
- Select appropriate IPv6 prefixes
- Plan IPv6 deployments
Configure, verify, and troubleshoot IPv6 addressing
- IPv6 configuration
- EUI-64
- Link-local addresses
- Global unicast addresses
- IPv6 verification commands
- IPv6 troubleshooting
- IPv6 configuration commands
- Address verification
- Troubleshooting IPv6 issues
- Show command outputs
Cisco IOS
- Configure IPv6 on Cisco devices
- Verify IPv6 addressing
- Troubleshoot IPv6 connectivity
Configure and verify IPv6 Stateless Address Auto Configuration
- SLAAC process
- Router Advertisement
- Neighbor Discovery
- EUI-64 address generation
- DHCPv6 comparison
- SLAAC configuration
- SLAAC verification
- RA message content
- Auto-configuration process
- Cisco IOS
- IPv6
- Configure SLAAC on routers
- Verify SLAAC operation
- Explain SLAAC process
Compare and contrast IPv6 address types
- Global unicast
- Link-local
- Unique local
- Multicast
- Anycast
- Address scopes
- IPv6 address type identification
- Address type purposes
- Address range recognition
- Identify IPv6 address types
- Explain purpose of each type
- Recognize address type by prefix
2
LAN Switching Technologies
21%
Describe and verify switching concepts
MAC learning and agingFrame switchingFrame floodingMAC address table
- Layer 2 switching operation
- Frame forwarding decisions
- MAC address table management
- Switching fundamentals
- MAC address table operations
- Frame forwarding scenarios
Cisco Catalyst switches
- Explain switch learning process
- Verify MAC address table
- Troubleshoot switching issues
Interpret Ethernet frame format
- Ethernet II frame
- 802.3 frame
- Frame fields
- Preamble
- MAC addresses
- EtherType
- FCS
- MTU
- Frame field identification
- Frame format differences
- MTU concepts
- Identify Ethernet frame components
- Explain frame field purposes
- Understand frame size limitations
Troubleshoot interface and cable issues (collisions, errors, duplex, speed)
- Duplex mismatch
- Speed mismatch
- Collision detection
- Interface errors
- CRC errors
- Auto-negotiation
- Duplex/speed troubleshooting
- Error interpretation
- Show command analysis
- Auto-negotiation issues
Cisco IOS
- Troubleshoot duplex mismatches
- Interpret interface statistics
- Resolve cable issues
Configure, verify, and troubleshoot VLANs (normal/extended range) spanning multiple switches
Access ports (data and voice)Default VLAN
- VLAN fundamentals
- VLAN ranges (1-1005 normal, 1006-4094 extended)
- VLAN configuration
- VLAN verification
- VLAN troubleshooting
- VLAN configuration commands
- VLAN assignment
- Voice VLAN setup
- VLAN troubleshooting
- Cisco Catalyst switches
- VTP
- Configure VLANs on switches
- Assign ports to VLANs
- Configure voice VLANs
- Verify VLAN operation
Configure, verify, and troubleshoot interswitch connectivity
Trunk portsAdd and remove VLANs on a trunkDTP, VTP (v1&v2), and 802.1QNative VLAN
- Trunk configuration
- VLAN Trunking Protocol
- Dynamic Trunking Protocol
- 802.1Q encapsulation
- Trunk configuration
- VTP operation
- DTP modes
- Native VLAN issues
- Cisco Catalyst switches
- VTP
- DTP
- Configure trunk ports
- Implement VTP
- Troubleshoot trunking issues
- Verify trunk operation
Configure, verify, and troubleshoot STP protocols
STP mode (PVST+ and RPVST+)STP root bridge selection
- Spanning Tree Protocol fundamentals
- Root bridge election
- Port states
- Port roles
- BPDU
- Convergence
- STP configuration
- Root bridge selection
- Port state transitions
- STP troubleshooting
- Cisco Catalyst switches
- PVST+
- RPVST+
- Configure STP
- Manipulate root bridge election
- Verify STP operation
- Troubleshoot STP issues
Configure, verify and troubleshoot STP related optional features
PortFastBPDU guard
- PortFast
- BPDU Guard
- STP enhancements
- Access port optimization
- PortFast use cases
- BPDU guard configuration
- Feature troubleshooting
Cisco Catalyst switches
- Configure PortFast
- Implement BPDU guard
- Understand feature interaction
Configure and verify Layer 2 protocols
Cisco Discovery ProtocolLLDP
- CDP fundamentals
- LLDP fundamentals
- Neighbor discovery
- Protocol comparison
- CDP configuration
- LLDP configuration
- Protocol selection
- Security considerations
- CDP
- LLDP
- Configure CDP
- Configure LLDP
- Verify neighbor information
- Understand security implications
Configure, verify, and troubleshoot (Layer 2/Layer 3) EtherChannel
StaticPAGPLACP
- EtherChannel fundamentals
- Load balancing
- Bundling interfaces
- Protocol comparison
- EtherChannel configuration
- Protocol selection
- Load balancing methods
- Troubleshooting
- PAgP
- LACP
- Configure EtherChannel
- Select appropriate protocol
- Verify EtherChannel operation
- Troubleshoot EtherChannel issues
Describe the benefits of switch stacking and chassis aggregation
- Switch stacking
- VSS (Virtual Switching System)
- StackWise
- Single management plane
- Increased bandwidth
- Simplified management
- Stacking benefits
- VSS advantages
- Use case scenarios
- Cisco StackWise
- VSS
- Explain switch stacking benefits
- Describe chassis aggregation
- Identify appropriate use cases
3
Routing Technologies
23%
Describe the routing concepts
Packet handling along the path through a networkForwarding decision based on route lookupFrame rewrite
- Routing fundamentals
- Forwarding vs routing
- Route lookup process
- Routing concepts
- Packet forwarding
- Frame rewriting
Cisco IOS routers
- Explain routing process
- Describe packet handling
- Understand frame rewrite
Interpret the components of a routing table
PrefixNetwork maskNext hopRouting protocol codeAdministrative distanceMetricGateway of last resort
- Routing table structure
- Route entry components
- Administrative distance
- Metric
- Routing table interpretation
- Show ip route analysis
- Route selection logic
Cisco IOS
- Read routing table entries
- Interpret routing codes
- Understand AD and metrics
Describe how a routing table is populated by different routing information sources
Admin distance
- Connected routes
- Static routes
- Dynamic routing protocols
- Administrative distance values
- Route source comparison
- AD values for protocols
- Route selection process
- Explain route population methods
- Compare administrative distances
- Understand route preference
Configure, verify, and troubleshoot inter-VLAN routing
Router on a stickSVI
- Inter-VLAN routing methods
- Subinterface configuration
- SVI configuration
- VLAN routing comparison
- ROAS configuration
- SVI configuration
- Method comparison
- Troubleshooting inter-VLAN
- Cisco routers
- Cisco Layer 3 switches
- Configure router-on-a-stick
- Configure SVIs
- Verify inter-VLAN routing
- Troubleshoot VLAN routing
Compare and contrast static routing and dynamic routing
- Static route advantages/disadvantages
- Dynamic routing advantages/disadvantages
- Use cases for each
- Scalability considerations
- When to use static vs dynamic
- Characteristic comparison
- Appropriate scenarios
- Compare routing types
- Select appropriate method
- Understand trade-offs
Compare and contrast distance vector and link state routing protocols
- Distance vector characteristics
- Link state characteristics
- Algorithm differences
- Convergence
- Routing loops
- Protocol classification
- Characteristic comparison
- Algorithm understanding
- RIP
- EIGRP
- OSPF
- Distinguish protocol types
- Explain algorithm differences
- Compare convergence behavior
Compare and contrast interior and exterior routing protocols
- IGP vs EGP
- Autonomous systems
- BGP fundamentals
- Protocol purposes
- IGP vs EGP distinction
- Use case scenarios
- AS concepts
- OSPF
- EIGRP
- BGP
- Differentiate IGP and EGP
- Explain autonomous systems
- Identify appropriate protocol type
Configure, verify, and troubleshoot IPv4 and IPv6 static routing
Default routeNetwork routeHost routeFloating static
- Static route configuration
- IPv4 static routes
- IPv6 static routes
- Route types
- Static route commands
- Route type configuration
- Verification
- Troubleshooting
Cisco IOS
- Configure static routes
- Implement floating static routes
- Verify static routing
- Troubleshoot static routes
Configure, verify, and troubleshoot single area and multi-area OSPFv2 for IPv4
Neighbor adjacenciesPoint-to-pointBroadcast (DR/BDR selection)Router ID
- OSPF fundamentals
- Area concepts
- LSA types
- OSPF states
- Network types
- OSPF configuration
- Area design
- Adjacency troubleshooting
- DR/BDR election
- OSPFv2
- Cisco IOS
- Configure single-area OSPF
- Configure multi-area OSPF
- Verify OSPF operation
- Troubleshoot OSPF
Configure, verify, and troubleshoot single area and multi-area OSPFv3 for IPv6
- OSPFv3 fundamentals
- IPv6 OSPF configuration
- OSPFv2 vs OSPFv3 differences
- OSPFv3 configuration
- IPv6 OSPF verification
- OSPFv3 troubleshooting
- OSPFv3
- Cisco IOS
- Configure OSPFv3
- Verify OSPFv3 operation
- Compare OSPFv2 and OSPFv3
Configure, verify, and troubleshoot EIGRP for IPv4
Feasible distance, feasible successors, administrative distanceFeasibility conditionMetric compositionRouter IDAuto-summaryPath selectionLoad balancing
- EIGRP fundamentals
- DUAL algorithm
- Neighbor relationships
- Metric calculation
- EIGRP configuration
- Metric understanding
- Path selection
- Troubleshooting
- EIGRP
- Cisco IOS
- Configure EIGRP
- Understand DUAL algorithm
- Verify EIGRP operation
- Troubleshoot EIGRP
Configure, verify, and troubleshoot EIGRP for IPv6
- EIGRP for IPv6
- Configuration differences
- IPv6 EIGRP operation
- IPv6 EIGRP configuration
- Verification commands
- Troubleshooting
- EIGRP
- Cisco IOS
- Configure EIGRP for IPv6
- Verify IPv6 EIGRP
- Compare IPv4 and IPv6 EIGRP
Configure, verify, and troubleshoot RIPv2 for IPv4
- RIPv2 fundamentals
- Distance vector
- Hop count metric
- Periodic updates
- RIPv2 configuration
- RIPv2 configuration
- Verification
- Troubleshooting
- Limitations
- RIPv2
- Cisco IOS
- Configure RIPv2
- Verify RIPv2 operation
- Understand RIPv2 limitations
Troubleshoot basic Layer 3 end-to-end connectivity issues
- Ping and traceroute
- Routing table analysis
- ARP troubleshooting
- Gateway issues
- Connectivity troubleshooting methodology
- Troubleshooting commands
- Connectivity scenarios
- Problem isolation
- Root cause analysis
Cisco IOS
- Troubleshoot Layer 3 connectivity
- Use diagnostic tools
- Analyze routing issues
4
WAN Technologies
10%
Configure and verify PPP and MLPPP on WAN interfaces using local authentication
- PPP fundamentals
- CHAP authentication
- PAP authentication
- MLPPP
- PPP configuration
- PPP configuration
- Authentication setup
- MLPPP configuration
- Verification
- PPP
- Cisco IOS
- Configure PPP
- Implement PPP authentication
- Configure MLPPP
- Verify PPP operation
Configure, verify, and troubleshoot PPPoE client-side interfaces using local authentication
- PPPoE fundamentals
- DSL connections
- Dialer interfaces
- PPPoE configuration
- PPPoE configuration
- Client setup
- Troubleshooting PPPoE
- Show commands
- PPPoE
- Cisco IOS
- Configure PPPoE client
- Verify PPPoE connectivity
- Troubleshoot PPPoE
Configure, verify, and troubleshoot GRE tunnel connectivity
- GRE tunnel fundamentals
- Tunnel interfaces
- Tunnel source/destination
- Keepalive
- Routing over tunnels
- GRE configuration
- Tunnel setup
- Routing through tunnels
- Troubleshooting
- GRE
- Cisco IOS
- Configure GRE tunnels
- Verify tunnel operation
- Route over tunnels
- Troubleshoot GRE
Describe WAN topology options
Point-to-pointHub and spokeFull meshSingle vs dual-homed
- WAN topologies
- Design considerations
- Scalability
- Redundancy
- Topology identification
- Design selection
- Trade-off analysis
- Identify WAN topologies
- Compare topology options
- Select appropriate design
Describe WAN access connectivity options
MPLSMetro EthernetBroadband PPPoEInternet VPN (DMVPN, site-to-site VPN, client VPN)
- WAN technologies
- Access methods
- Technology comparison
- Technology identification
- Technology comparison
- Appropriate selection
- MPLS
- Metro Ethernet
- VPN
- Describe WAN technologies
- Compare access options
- Select appropriate technology
Configure and verify single-homed branch connectivity using eBGP IPv4
- BGP fundamentals
- eBGP vs iBGP
- AS numbers
- Neighbor relationships
- BGP configuration
- eBGP configuration
- BGP verification
- Single-homed setup
- BGP
- Cisco IOS
- Configure basic eBGP
- Verify BGP operation
- Understand AS concepts
Describe basic QoS concepts
MarkingDevice trustPrioritizationVoiceVideoShapingPolicingCongestion management
- QoS fundamentals
- Traffic classification
- Queue management
- QoS mechanisms
- QoS concepts
- Mechanism identification
- QoS requirements
Cisco QoS
- Explain QoS concepts
- Identify QoS mechanisms
- Understand QoS requirements
5
Infrastructure Services
10%
Describe DNS lookup operation
- DNS hierarchy
- DNS resolution process
- Iterative vs recursive
- DNS records (A, AAAA, CNAME, MX, PTR)
- DNS process
- Record types
- Resolution methods
DNS
- Explain DNS operation
- Identify DNS record types
- Understand resolution process
Troubleshoot client connectivity issues involving DNS
- DNS troubleshooting
- Nslookup
- DNS configuration verification
- Common DNS issues
- DNS troubleshooting steps
- Command usage
- Problem identification
- DNS
- Cisco IOS
- Troubleshoot DNS issues
- Use DNS diagnostic tools
- Verify DNS configuration
Configure and verify DHCP on a router (excluding static reservations)
ServerRelayClientTFTP, DNS, and gateway options
- DHCP fundamentals
- DORA process
- DHCP configuration
- DHCP server setup
- Relay agent configuration
- Option configuration
- Verification
- DHCP
- Cisco IOS
- Configure DHCP server
- Configure DHCP relay
- Verify DHCP operation
Troubleshoot client- and router-based DHCP connectivity issues
- DHCP troubleshooting
- Lease issues
- Relay problems
- DHCP debugging
- DHCP troubleshooting
- Problem scenarios
- Show commands
- Debug commands
- DHCP
- Cisco IOS
- Troubleshoot DHCP issues
- Verify DHCP operation
- Use diagnostic commands
Configure, verify, and troubleshoot basic HSRP
PriorityPreemptionVersion
- HSRP fundamentals
- FHRP concepts
- Virtual IP
- Active/standby routers
- HSRP configuration
- Priority/preemption
- Verification
- Troubleshooting
- HSRP
- Cisco IOS
- Configure HSRP
- Manipulate active router selection
- Verify HSRP operation
- Troubleshoot HSRP
Configure, verify, and troubleshoot inside source NAT
StaticPoolPAT
- NAT fundamentals
- Inside/outside interfaces
- NAT types
- Translation table
- NAT configuration
- NAT type selection
- Verification commands
- Troubleshooting
- NAT
- Cisco IOS
- Configure static NAT
- Configure dynamic NAT
- Configure PAT
- Verify NAT operation
Configure and verify NTP operating in a client/server mode
- NTP fundamentals
- Time synchronization
- Stratum levels
- NTP configuration
- NTP configuration
- Client/server setup
- Verification
- Stratum understanding
- NTP
- Cisco IOS
- Configure NTP client
- Configure NTP server
- Verify NTP operation
6
Infrastructure Security
11%
Configure, verify, and troubleshoot port security
StaticDynamicStickyMax MAC addressesViolation actionsErr-disable recovery
- Port security fundamentals
- MAC address limiting
- Violation handling
- Port security configuration
- Violation modes
- Troubleshooting
- Recovery procedures
Cisco Catalyst switches
- Configure port security
- Select appropriate violation action
- Verify port security
- Troubleshoot violations
Describe common access layer threat mitigation techniques
802.1xDHCP snoopingNondefault native VLAN
- Access layer security
- Attack mitigation
- Best practices
- Security techniques
- Attack types
- Mitigation methods
Cisco Catalyst switches
- Describe 802.1x
- Explain DHCP snooping
- Understand VLAN security
Configure, verify, and troubleshoot IPv4 and IPv6 access list for traffic filtering
StandardExtendedNamed
- ACL fundamentals
- Wildcard masks
- ACL placement
- Implicit deny
- ACL processing order
- ACL configuration
- ACL types
- Placement decisions
- Troubleshooting
- IPv6 ACL differences
Cisco IOS
- Configure standard ACLs
- Configure extended ACLs
- Apply ACLs to interfaces
- Verify ACL operation
- Troubleshoot ACLs
Verify ACLs using the APIC-EM Path Trace ACL analysis tool
- APIC-EM
- Path Trace
- ACL analysis
- SDN tools
- APIC-EM usage
- Path Trace tool
- ACL verification
APIC-EM
- Use APIC-EM Path Trace
- Analyze ACL behavior
- Verify ACL impact
Configure, verify, and troubleshoot basic device hardening
Local authenticationSecure passwordAccess to deviceSource addressTelnet/SSHLogin banner
- Device hardening
- Access control
- Password security
- Management access
- Hardening configuration
- SSH setup
- Access restrictions
- Best practices
Cisco IOS
- Configure device hardening
- Implement SSH
- Secure management access
- Configure banners
Describe device security using AAA with TACACS+ and RADIUS
- AAA fundamentals
- Authentication, Authorization, Accounting
- TACACS+
- RADIUS
- Protocol comparison
- AAA concepts
- TACACS+ vs RADIUS
- AAA services
- Protocol selection
- TACACS+
- RADIUS
- Explain AAA
- Compare TACACS+ and RADIUS
- Understand AAA benefits
7
Infrastructure Management
10%
Configure and verify device-monitoring protocols
SNMPv2SNMPv3
- SNMP fundamentals
- Version comparison
- SNMP configuration
- SNMP configuration
- Version selection
- Verification
- SNMP
- Cisco IOS
- Configure SNMP
- Compare SNMP versions
- Verify SNMP operation
Configure and verify device management
Backup and restore device configurationUsing syslog for network managementLogging to a syslog serverUse of show commands for device managementFile management
- Configuration management
- Logging
- File management
- Device monitoring
- Configuration backup/restore
- Syslog setup
- File operations
- Show commands
- Cisco IOS
- TFTP
- Syslog
- Backup configurations
- Configure syslog
- Manage IOS files
- Use show commands effectively
Configure and verify initial device configuration
- Initial configuration
- Hostname
- IP addressing
- Default gateway
- Interface configuration
- Initial setup steps
- Basic configuration
- Verification
Cisco IOS
- Perform initial configuration
- Configure basic parameters
- Verify initial setup
Perform device maintenance
Cisco IOS upgrades and recovery (TFTP, FTP, USB, MD5 verify)Password recovery and configuration registerFile system management
- IOS management
- Device recovery
- File system operations
- IOS upgrade process
- Password recovery
- Configuration register
- File management
Cisco IOS
- Upgrade IOS
- Perform password recovery
- Manage file system
Use Cisco IOS tools to troubleshoot and resolve problems
Ping and traceroute with extended optionTerminal monitorLog events
- Troubleshooting tools
- Diagnostic commands
- Log analysis
- Ping/traceroute usage
- Debug commands
- Log analysis
- Terminal monitor
Cisco IOS
- Use extended ping/traceroute
- Configure terminal monitor
- Analyze logs
Describe network programmability in enterprise network architecture
Function of a controllerSeparation of control plane and data planeNorthbound and Southbound APIs
- SDN fundamentals
- Network programmability
- Controller-based architecture
- SDN concepts
- Controller functions
- API types
- APIC-EM
- SDN
- Explain SDN
- Describe controller functions
- Understand APIs
How do I earn this certification?
Passing 200-125 earns the Cisco Certified Network Associate (CCNA) Routing and Switching certification. It sits in the Routing and Switching (Retired) track.
Practice with Precision
The PlanetCert Simulator mirrors the real exam environment with authentic questions and timed pressure.
How to study for this exam?
The most effective way to prepare for 200-125 is by using the PlanetCert Simulator to practice questions and review detailed explanations.
What's changed on this exam?
Current Status
- RETIRED
- Last content update: 2016-08-20
- Announcement date: 2019-06-11
Updates
- Software-Defined Networking (SDN) New exam includes SDN fundamentals and controller-based networking • Release date: 2020-02-24
- Network Automation and Programmability 10% of new exam dedicated to automation topics • Release date: 2020-02-24
- Wireless Networking Wireless fundamentals now part of unified CCNA • Release date: 2020-02-24
- Legacy Technologies Deprecated Release date: 2020-02-24
Who should take this exam?
- Basic computer literacy
- Basic PC operating system navigation skills
- Basic Internet usage skills
- Basic IP address knowledge
- 6-12 months of networking experience