Telemetry consists of four key elements: -Data Collection - Data Enconding -Data Transport -Telemetry Receiver

Telemetry in Cisco Nexus switches is used to collect data from network devices and systems in real-time. The process consists of several components: Telemetry agent: The agent is responsible for collecting data from network devices and systems and forwarding it to the telemetry collector for processing and storage. Data encoding: Data encoding is the process of converting the collected data into a format that can be easily processed and stored by the telemetry collector. Data collection: Data collection is the process of collecting data from network devices and systems. Telemetry compression: Telemetry compression is the process of compressing the collected data to reduce the amount of bandwidth required for transmission and storage. Data manipulation: Data manipulation is the process of manipulating the collected data to ensure that it is accurate and usable. Therefore, options A (telemetry agent) and C (data collection) are the correct components used by the Cisco Nexus switches telemetry process.

It's BC https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/programmability/guide/b_Cisco_Nexus_9000_Series_NX-OS_Programmability_Guide_7x/b_Cisco_Nexus_9000_Series_NX-OS_Programmability_Guide_7x_chapter_011000.html

A. Telemetry Agent: The telemetry agent is a software component on the switch that is responsible for collecting data from various sources within the device. It gathers statistics, events, and other information based on the configured telemetry subscription. C. Data Collection: Data collection is a fundamental part of the telemetry process. It refers to the gathering of data from the network device, which can include a wide range of metrics such as interface statistics, system health indicators, and network performance metrics.

Telemetry agent: The agent is responsible for collecting data from network devices and systems and forwarding it to the telemetry collector for processing and storage. Data encoding: Data encoding is the process of converting the collected data into a format that can be easily processed and stored by the telemetry collector. Data collection: Data collection is the process of collecting data from network devices and systems. Telemetry compression: Telemetry compression is the process of compressing the collected data to reduce the amount of bandwidth required for transmission and storage. Data manipulation: Data manipulation is the process of manipulating the collected data to ensure that it is accurate and usable.

Data Collection, Data Encoding

Looks like answer is ok Telemetry Components and Process Telemetry consists of four key elements: Data Collection — Telemetry data is collected from the Data Management Engine (DME) database in branches of the object model specified using distinguished name (DN) paths. The data can be retrieved periodically (frequency-based) or only when a change occurs in any object on a specified path (event-based). You can use the NX-API to collect frequency-based data. Data Encoding — The telemetry encoder encapsulates the collected data into the desired format for transporting. NX-OS encodes telemetry data in the Google Protocol Buffers (GPB) and JSON format. Data Transport — NX-OS transports telemetry data using HTTP for JSON encoding and the Google remote procedure call (gRPC) protocol for GPB encoding. The gRPC receiver supports message sizes greater than 4 MB. (Telemetry data using HTTPS is also supported if a certificate is configured.)

Answer Would be B & C Telemetry Components and Process Data Collection Data Encoding Data Transport Telemetry Receiver