Encryption provides which of the following to data being transferred across the network?

Encryption converts plaintext into ciphertext using a cryptographic algorithm and key, ensuring that intercepted data cannot be read by unauthorized parties. This property - keeping data secret from unintended recipients - is the definition of confidentiality in the CIA triad. Whether data is in transit or at rest, encryption is the primary technical control used to enforce confidentiality.

Resistance to jitter is a network quality characteristic related to consistent packet delivery timing, typically addressed by QoS mechanisms and buffering, not encryption.

High availability refers to system uptime and redundancy strategies such as failover clustering or load balancing, which are unrelated to encryption.

Data integrity - ensuring data has not been altered - is provided by cryptographic hashing (e.g., SHA-256) or HMACs, not encryption alone.