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Exam DES-5221 topic 1 question 57 discussion

Actual exam question from Dell's DES-5221
Question #: 57
Topic #: 1
[All DES-5221 Questions]

Which field in an IP header is used for QoS marking?

  • A. ToS
  • B. SA
  • C. CoS
  • D. DA
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Suggested Answer: A 🗳️
by lobana at June 5, 2021, 2:39 p.m.

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Praveen2929
3 years, 2 months ago
Selected Answer: A
ToS - Type of service (ToS). Originally defined as the type of service (ToS), this field specifies differentiated services (DiffServ) per RFC 2474.[a] Real-time data streaming makes use of the DSCP field. An example is Voice over IP (VoIP), which is used for interactive voice services.
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lobana
3 years, 10 months ago
Correct
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