Cisco ENCOR Wireless and Automation 2 — Questions and Answers
Question 1: What does NETCONF use as its transport protocol?
- HTTP
- HTTPS/TLS
- SSH (Correct answer)
- UDP
Correct answer: SSH
NETCONF (RFC 6241) uses SSH as its mandatory transport protocol, operating over TCP port 830.
Question 2: Which data encoding format is preferred by RESTCONF for API interactions?
- XML only
- JSON or XML (Correct answer)
- CSV
- YAML
Correct answer: JSON or XML
RESTCONF supports both JSON and XML encoding for data exchange, with JSON being more commonly used in modern implementations.
Question 3: In infrastructure as code, what is the key characteristic of an idempotent operation?
- It runs faster each time it executes
- It produces the same result regardless of how many times it is applied (Correct answer)
- It requires elevated privileges
- It reverses previous changes
Correct answer: It produces the same result regardless of how many times it is applied
An idempotent operation can be applied multiple times without changing the result beyond the first application, ensuring consistent state.
Question 4: Which CAPWAP port does control traffic between an AP and WLC use?
- UDP 5246 (Correct answer)
- UDP 5247
- TCP 443
- TCP 22
Correct answer: UDP 5246
CAPWAP control traffic uses UDP port 5246, while CAPWAP data traffic uses UDP port 5247.
Question 5: What is the purpose of Ansible playbooks in network automation?
- Monitor network traffic
- Define and execute a set of ordered automation tasks against managed devices (Correct answer)
- Generate network diagrams
- Capture packet traces
Correct answer: Define and execute a set of ordered automation tasks against managed devices
Ansible playbooks are YAML files that define a series of automation tasks (plays) to be executed against one or more managed hosts.
Question 6: Which 802.11 standard introduced OFDMA and MU-MIMO for both uplink and downlink, significantly improving dense environment performance?
- 802.11ac (Wi-Fi 5)
- 802.11n (Wi-Fi 4)
- 802.11ax (Wi-Fi 6) (Correct answer)
- 802.11g
Correct answer: 802.11ax (Wi-Fi 6)
802.11ax (Wi-Fi 6) introduced OFDMA and full MU-MIMO (uplink and downlink) to improve efficiency in high-density environments.
Cisco ENCOR Wireless and Automation 2
What does NETCONF use as its transport protocol?