300-320 · Question #110
Which four primary attributes define a WAN service? (Choose four.)
The correct answer is A. bandwidth B. bursting capacity E. QoS classes and policies G. multicast support. The four primary attributes that define and differentiate WAN service offerings are: (A) Bandwidth - the committed information rate (CIR) or guaranteed throughput; (B) Bursting capacity - the ability to temporarily exceed the committed bandwidth up to a maximum rate; (E) QoS…
Question
Which four primary attributes define a WAN service? (Choose four.)
Options
- Abandwidth
- Bbursting capacity
- Cmemory
- DCPU
- EQoS classes and policies
- Flatency
- Gmulticast support
How the community answered
(45 responses)- A87% (39)
- C7% (3)
- D4% (2)
- F2% (1)
Explanation
The four primary attributes that define and differentiate WAN service offerings are: (A) Bandwidth - the committed information rate (CIR) or guaranteed throughput; (B) Bursting capacity - the ability to temporarily exceed the committed bandwidth up to a maximum rate; (E) QoS classes and policies - the service tiers and traffic treatment guarantees offered by the provider, critical for voice and video; and (G) Multicast support - whether the WAN service can carry multicast traffic, which is required for certain enterprise applications. Memory (C) and CPU (D) are hardware specifications of the router, not attributes of the WAN service itself. Latency (F), while an important performance metric, is not listed as one of the four primary service-defining attributes in this curriculum context.
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