100-150 Question 233
Select 3A network administrator needs to collect data about a network device to analyze its performance and troubleshoot issues. Which of the following methods can they use to access and gather this data?
- A
Using SNMP (Simple Network Management Protocol) to query device metrics
- B
Using SSH (Secure Shell) to log in and manually retrieve data
- C
Using an HTTP-based REST API provided by the device
- D
Physically inspecting the device for status lights and hardware indicators
- E
Using a Packet Analyzer to capture traffic directly from the device
Show answer and explanation
Correct answers: A, B, C
Explanation
Network administrators have multiple ways to access and collect data about network devices. SNMP, SSH, and REST APIs are common methods that provide detailed and accurate information about device performance, configuration, and status. Physical inspection and traffic analysis serve other purposes and are not primary methods for collecting device-specific data.
- A. Correct.
SNMP is a widely used protocol for monitoring and managing network devices. It allows administrators to query and collect data such as CPU usage, memory, and interface statistics.
- B. Correct.
SSH provides secure remote access to the command-line interface (CLI) of the device, enabling administrators to manually retrieve configuration and performance data.
- C. Correct.
Many modern network devices provide REST APIs for programmatic access to device data, including configuration and status information.
- D. Incorrect.
While physical inspection might provide some high-level information (e.g., status lights), it does not provide detailed performance or configuration data, making it less effective for comprehensive analysis.
- E. Incorrect.
Packet analyzers are primarily used to capture and analyze network traffic, not to gather device-specific data like performance metrics or configurations.