HPC Big Data Certification Practice Test – Study Guide, Prep & Questions

When discussing the latency introduced by TCP (Transmission Control Protocol) between two nodes, it is important to consider the nature of TCP as a reliable transport layer protocol. TCP establishes a full-duplex connection, ensures the reliable delivery of packets, and manages error checking, which can contribute to some degree of latency.

The appropriate answer regarding latency for TCP connections typically falls in the low microsecond range under ideal conditions. Latency can vary based on several factors, including network conditions, the distance between nodes, and the specific configurations of the TCP stack, but the range usually does not extend to milliseconds in standard configurations.

Considering the context of the other options provided, the introduction of latency as 0.2 milliseconds would imply significantly higher delay than what is typical for TCP communication in local area networks, where latency is usually expected to be measured in microseconds rather than milliseconds. Connecting two nodes via TCP tends to yield latencies closer to the single-digit microsecond range, depending on the speed and efficiency of the underlying network infrastructure.

Therefore, the selection that reflects a realistic latency figure for TCP connections in high-performance environments would be in the microsecond range, aligning with what is typically observed in the industry. This understanding helps solidify the expectation of TCP performance in