Final answer:
The key x800 security concerns include data integrity, confidentiality, and availability, which are addressed in the TCP/IP suite through encryption protocols like SSL/TLS and IPsec, along with proper network management.
Step-by-step explanation:
The question concerns the security concerns related to the x800 security standards and how they are addressed by the TCP/IP protocol suite. The key security concerns in network communications include the integrity, confidentiality, and availability of data.
These concerns are addressed in TCP/IP through various measures, though TCP/IP itself is not inherently secure. For integrity and confidentiality, protocols such as Secure Sockets Layer (SSL)/Transport Layer Security (TLS) are used to encrypt data. For ensuring availability, measures such as redundant network architecture and proper network management are essential.
Additionally, other protocols such as Internet Protocol Security (IPsec) can be leveraged to provide a secure channel at the IP layer by authenticating and encrypting each IP packet of a data stream.