What does jitter directly affect in a network?

Jitter directly affects packet delivery consistency in a network. Jitter refers to the variability in packet arrival times, which can lead to inconsistent delivery of data packets over a network connection. When jitter is present, it can disrupt the smooth flow of data, causing packets to arrive out of order or with varying delays. This inconsistency can significantly impact applications that require real-time data transmission, such as VoIP (Voice over Internet Protocol) and video conferencing, where timing and synchronization of data packets are crucial for maintaining audio and video quality.

In contrast, data integrity refers to the accuracy and completeness of data being transmitted, which, while potentially impacted by jitter, is not its direct effect. The speed of connection pertains to the overall bandwidth or throughput of the network, and that is more related to latency and bandwidth capacity rather than jitter itself. Security protocols involve safeguarding data during transmission, which does not relate to the timing and delivery consistency issues that jitter addresses. Thus, the most relevant impact of jitter in a network context is on packet delivery consistency.