What is the maximum ping time recommended between the BlackBerry Enterprise Server and the Microsoft Exchange Server? (Choose one)

Question

Options

• A10 ms
• B25 ms
• C35 ms
• D50 ms
• E100 ms

• A
  2% (1)
• B
  8% (5)
• C
  85% (51)
• D
  2% (1)
• E
  3% (2)

Explanation

BlackBerry Enterprise Server (BES) documentation specifies 35 ms as the maximum recommended round-trip ping latency between BES and the Microsoft Exchange Server - anything higher risks message delivery delays, synchronization failures, and degraded performance for mobile users. Options A (10 ms) and B (25 ms) are below the threshold and would be ideal network conditions, but they are not the stated maximum limit - the question asks for the ceiling, not the ideal. Options D (50 ms) and E (100 ms) exceed the recommended maximum and would indicate a network condition RIM/BlackBerry considered unacceptable for reliable BES operation.

Memory tip: Think "3 + 5 = BES is alive" - 35 ms is the magic number. If you picture a stopwatch ticking just past 35, the BES starts struggling to keep up with Exchange.

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