[NEW] CCIE Enterprise Infrastructure [2026]

Routing & Switching Technologies (30%) Topics include OSPF, IS-IS, and BGP advanced configuration, Ethernet technologies (VLANs, VxLAN, QinQ), MPLS Layer 3 VPNs and traffic engineering, and Multicast routing and optimization,

Network Services & Security (25%) Topics include learn 300 715 implementing cisco identity services engine tests (ISE) and AAA policies, Secure device management (SSH, PKI, TrustSec), Infrastructure services (NTP, DHCP, DNS, SNMP), and QoS design and implementation,

Automation, Assurance, & Troubleshooting (20%) Topics include Cisco DNA Center and SD-Access automation, Network telemetry, streaming telemetry, and NetFlow, Python scripting and RESTCONF/NETCONF APIs, and Advanced troubleshooting methodologies,

B) Management Plane

C) Control Plane

D) Orchestration Plane

E) Forwarding Plane

F) Security Plane

Correct Answer: C

Explanation:

Option A is incorrect because the data plane (WAN Edge routers) handles the actual forwarding of user traffic, not the distribution of policies,

Option B is incorrect because the management plane (vManage) is a centralized dashboard used for configuration and monitoring, not real-time route distribution,

Option C is correct because the control plane (vSmart) securely distributes routing and policy information to edge devices,

Option D is incorrect because the orchestration plane (vBond) authenticates devices joining the network and orchestrates initial connectivity,

Option E is incorrect because the forwarding plane is simply another term for the data plane,

Option F is incorrect because there is no separate entity called the security plane in this specific functional breakdown, security is integrated across all planes,

Question 2: In a BGP routing environment, which attribute is evaluated first in the standard path selection process to determine the best path to a destination network?

B) AS-Path length

C) Multi-Exit Discriminator (MED)

D) Origin type

E) Weight

F) Router ID

Correct Answer: E

Explanation:

Option A is incorrect because Local Preference is evaluated second, immediately after Weight,

Option B is incorrect because AS-Path length is evaluated third, after Local Preference,

Option C is incorrect because MED is evaluated much later in the process, typically sixth,

Option D is incorrect because Origin type is evaluated fourth, after AS-Path length,

Option E is correct because Weight is a Cisco-proprietary attribute that is always checked first, with the highest weight preferred,

Option F is incorrect because the Router ID is evaluated near the very end of the selection process as a tiebreaker,

Question 3: When utilizing NETCONF for network programmability and device management, which data encoding format is primarily used for transmitting configuration data and operational state?

B) YAML

C) XML

D) Protocol Buffers

E) CSV

F) TOML

Correct Answer: C

Explanation:

Option A is incorrect because JSON is typically associated with RESTCONF, not natively with standard NETCONF payloads,

Option B is incorrect because YAML is often used in automation tools like Ansible but is not the native protocol encoding for NETCONF,

Option C is correct because XML is the mandated encoding format for NETCONF Remote Procedure Calls (RPCs) and data,

Option D is incorrect because Protocol Buffers (Protobuf) are commonly used for streaming telemetry (like gRPC), not standard NETCONF,

Option E is incorrect because CSV is a plain text tabular format and lacks the hierarchical structure required for network configuration modeling,

Option F is incorrect because TOML is used for minimal configuration files, not structured programmatic network management via NETCONF,

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