Implementation Manager (IM) Specialist CHTS Practice Test

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What is one key function of the Transmission Control Protocol (TCP)?

Fast transmission of data
Reliable data transfer with error checking
Connectionless communication
Multicast delivery of packets

The correct answer is: Reliable data transfer with error checking

The Transmission Control Protocol (TCP) is integral to networking as it ensures reliable communication between devices on a network. One of its key functions is to provide reliable data transfer, which involves establishing a connection before data is sent and verifying that the data has been received correctly. TCP uses techniques such as error checking through checksums, acknowledgments for received packets, and retransmission of lost packets to maintain the integrity of the data being transmitted. This process significantly enhances the reliability of data transfer over potential unreliable networks, making TCP a vital protocol for many applications where accuracy and data integrity are crucial. In contrast, the other options represent different characteristics or functionalities that do not align with TCP's operations. Fast transmission of data may be associated with other protocols that prioritize speed over reliability. Connectionless communication typically pertains to protocols like User Datagram Protocol (UDP), which does not establish a connection or ensure reliable transmission. Lastly, multicast delivery of packets relates to the distribution of data to multiple recipients simultaneously, which is not a function specific to TCP.