Splunk Enterprise Certified Admin Practice Test

What parameter defines the maximum data queue size on the forwarder if the receiver is unreachable?

1. maxQueueSize

2. maxBufferSize

3. maxDataLimit

4. maxTransmissionSize

The correct answer is: maxQueueSize

The parameter that defines the maximum data queue size on the forwarder when the receiver is unreachable is indeed maxQueueSize. This parameter plays a critical role in Splunk's data forwarding architecture. When a forwarder tries to send data to a receiver and the receiver is not available (due to network issues, the receiver being down, etc.), the forwarder caches the data in a queue. The maxQueueSize parameter limits how much data can be stored in this queue. Once this limit is reached, the forwarder will start to discard or drop data, depending on the configured behavior. This is significant for maintaining system performance and ensuring that the forwarder does not exhaust its resources by holding too much data when the receiver is not available. By tuning the maxQueueSize parameter, administrators can ensure optimal data transmission while managing the potential risk of data loss during outages. Other parameters mentioned in the choices, such as maxBufferSize and maxTransmissionSize, relate to different aspects of data handling and forwarding but do not specifically define the queue size for storing data when the receiver is unreachable.