4A0-107 · Question #30
Which of the following are categories of forwarding classes on the Alcatel-Lucent 7750 SR? (Choose two)
The correct answer is A. Real-time D. High priority. On the Alcatel-Lucent 7750 SR, forwarding classes are organized into defined scheduling categories, and Real-time (A) and High priority (D) are two of the recognized categories - Real-time handles delay-sensitive traffic like voice/video with strict scheduling treatment, while…
Question
Which of the following are categories of forwarding classes on the Alcatel-Lucent 7750 SR? (Choose two)
Options
- AReal-time
- BAssured
- CNon-conforming
- DHigh priority
- EIn-profile
How the community answered
(23 responses)- A87% (20)
- B9% (2)
- C4% (1)
Explanation
On the Alcatel-Lucent 7750 SR, forwarding classes are organized into defined scheduling categories, and Real-time (A) and High priority (D) are two of the recognized categories - Real-time handles delay-sensitive traffic like voice/video with strict scheduling treatment, while High priority serves important control or premium traffic that needs preferential queuing over best-effort flows.
Why the distractors are wrong:
- B (Assured) sounds plausible because "Assured Forwarding" (AF) is a specific forwarding class name on the 7750 SR, but it is not itself a forwarding class category - this is a classic naming-trap distractor.
- C (Non-conforming) and E (In-profile) describe traffic conformance states used in policing/metering contexts (i.e., whether traffic stays within a committed rate), not categories of forwarding classes.
Memory tip: Use "RH" - Real-time and High priority are the categories that get special treatment. If an answer sounds like a policing term (conforming, in-profile, non-conforming), it's describing a rate concept, not a forwarding class category.
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