H19-410_V1.0 · Question #277
GPON technology has more advantages than EPON, such as the downstream bandwidth of GPON is twice that of EPON.
The correct answer is A. True. A is correct because GPON (Gigabit Passive Optical Network) does offer significant advantages over EPON (Ethernet Passive Optical Network), and the downstream bandwidth claim holds up: GPON delivers ~2.488 Gbps downstream compared to EPON's ~1.25 Gbps - making GPON roughly…
Question
GPON technology has more advantages than EPON, such as the downstream bandwidth of GPON is twice that of EPON.
Options
- ATrue
- BFalse
How the community answered
(51 responses)- A80% (41)
- B20% (10)
Explanation
A is correct because GPON (Gigabit Passive Optical Network) does offer significant advantages over EPON (Ethernet Passive Optical Network), and the downstream bandwidth claim holds up: GPON delivers ~2.488 Gbps downstream compared to EPON's ~1.25 Gbps - making GPON roughly twice the downstream capacity. Beyond bandwidth, GPON also supports higher split ratios (up to 1:128 vs. EPON's typical 1:32) and greater line efficiency (~93% vs. ~72%).
B is incorrect because dismissing GPON's advantages would contradict the measurable technical specifications - the bandwidth difference alone is well-documented in ITU-T G.984 (GPON) vs. IEEE 802.3ah (EPON) standards.
Memory tip: Think "G is Greater" - GPON's "G" stands for Gigabit, and it consistently outperforms EPON in bandwidth (2.5G vs 1.25G downstream), split ratio, and efficiency. The 2:1 downstream ratio is the headline number to remember for exams.
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