350-501 Architecture Practice Question
In a service provider network, the access layer connects end customers. Which technology is commonly used for fibre-based access in GPON deployments?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
GPON
GPON (Gigabit Passive Optical Network) is a fibre-based access technology standardized by ITU-T.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
DSL
Why it's wrong here
DSL uses copper, not fibre.
- ✗
MPLS
Why it's wrong here
MPLS is a core/backbone technology.
- ✗
Metro Ethernet
Why it's wrong here
Metro Ethernet is an aggregation technology, not access for GPON.
- ✓
GPON
Why this is correct
GPON is the correct fibre access technology.
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