What two functions describe the TCP optimization tool used in the Cisco SD-WAN? (Choose two.)

While TCP uses ACKs, the specific optimization involves Selective ACKs (SACK) for improved retransmission efficiency, making the general statement about TCP ACK too broad.

TCP optimization employs Selective Acknowledgment (SACK) to enable efficient retransmission recovery by informing the sender of all received data segments, improving throughput in lossy environments.

The TCP optimization tool performs local termination of TCP connections at the WAN Edge device, acting as a proxy to break the end-to-end connection and optimize each segment independently over the WAN.

TCP optimization terminates connections locally at the *originating* WAN edge and then re-establishes them to the remote WAN edge, rather than terminating connections only at the remote WAN edge.

TCP optimization primarily addresses data traffic performance and reliability, not control traffic, which uses its own robust protocols and is not typically subject to the same TCP optimizations.