350-501 · Question #622
What is the purpose of DS-Lite technology?
The correct answer is A. It enables networks to pass encapsulated IPv4-in-IPv6 traffic over the ISP backbone. DS-Lite (Dual-Stack Lite) is a transition mechanism that enables ISPs to connect IPv4-only subscribers to the IPv4 Internet over an IPv6-only core network.
Question
What is the purpose of DS-Lite technology?
Options
- AIt enables networks to pass encapsulated IPv4-in-IPv6 traffic over the ISP backbone.
- BIt allows network administrators to implement shared IPv4 addresses between the ISP and its
- CIt allows an ISP to service IPv6 networks over an IPv4-enabled ISP backbone.
- DIt allows network administrators to transition a network to IPv6 while maintaining IPv4 support.
How the community answered
(35 responses)- A89% (31)
- B3% (1)
- D9% (3)
Why each option
DS-Lite (Dual-Stack Lite) is a transition mechanism that enables ISPs to connect IPv4-only subscribers to the IPv4 Internet over an IPv6-only core network.
DS-Lite addresses the IPv4 address exhaustion problem by allowing carriers with an IPv6-only backbone to provide IPv4 connectivity to customers by encapsulating IPv4 packets within IPv6 packets for transport across the ISP's IPv6 network.
While DS-Lite involves shared IPv4 addresses, its primary purpose is not just to allow shared IPv4 addresses, but specifically to facilitate IPv4-in-IPv6 encapsulation over an ISP backbone.
DS-Lite enables IPv4 networks over an IPv6 backbone, not IPv6 networks over an IPv4 backbone; that scenario would typically use 6to4 or similar mechanisms.
DS-Lite is a specific IPv4-over-IPv6 tunneling solution, not a general method for transitioning a network to IPv6 while maintaining IPv4 support, which is a broader concept that includes dual-stack.
Concept tested: DS-Lite technology purpose
Source: https://datatracker.ietf.org/doc/html/rfc6333
Topics
Community Discussion
No community discussion yet for this question.