Which statement is true regarding discrete beacon codes?

The statement that discrete beacon codes do not end with the numerals "00" is accurate. Discrete beacon codes, which are also known as SSR (Secondary Surveillance Radar) codes, are specific 4-digit codes assigned to individual aircraft. These codes are used to uniquely identify and track aircraft on radar screens.

Typically, discrete codes are assigned to each aircraft in operation to provide air traffic controllers with precise information about their location and identity. While some codes may indeed have the last two digits as "00," many others do not. The allocation of discrete codes is managed by air traffic control to avoid duplication and ensure clarity in identification. Therefore, it is safe to assert that discrete beacon codes do not consistently end with "00," making the chosen statement true.

In contrast, other statements may present misunderstandings about the nature of discrete codes; for instance, they are not limited to commercial aircraft and can be assigned to military or general aviation aircraft as well. Additionally, discrete codes are typically not interchangeable with non-discrete codes, as they serve different functions in air traffic control.