Exam 199-01 topic 2 question 51 discussion

Actual exam question from Riverbed's 199-01

Question #: 51
Topic #: 2

Your Steelhead appliance deployment includes users accessing the Internet from branch offices with the traffic being back-hauled to the data center before going out to the Internet. However, HTTP latency optimization does not appear to be very effective, and in certain cases, is slower than without optimization. What settings might help with this Internet-bound traffic?

A. Riverbed recommends you turn off URL Learning and Parse-and-Prefetch and only enable OPT
B. Riverbed recommends you enable URL Learning and Parse-and-Prefetch and turn off OPT
C. Riverbed recommends you turn off URL Learning and only enable Parse-and-Prefetch and OPT
D. Riverbed recommends you turn off URL Learning, Parse-and-Prefetch, and OPT
E. Riverbed recommends you enable URL Learning, Parse-and-Prefetch, and OPT

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Suggested Answer: A 🗳️

by Volkano at Sept. 15, 2021, 2:24 p.m.

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Volkano

3 years, 2 months ago

Similar to other Layer-7 optimization modules, the HTTP optimization module expects the latency between the server and the server-side SteelHead to be LAN latency. With internet-bound traffic, the latency between the server-side SteelHead and the server is going to be far greater than typical LAN latency. In this case, the URL learning and parse-and-prefetch features are not very effective, and in certain cases they are slower than without optimization. we recommend that you do not disable HTTP automatic configuration—the SteelHead adjusts as necessary. > From SteelHead Deployment Guide - Protocols

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