Which of the following descriptions of the features and advantages of Huawei Cloud Data Access Service (DIS) is wrong?

Question

Options

• AEasy to use. Users can create a DIS data channel in seconds, easily put data into the channel, and
• BUnlimited scalability: The throughput of the DIS data channel can be expanded from several MB to
• CSerial processing: During the same time period, if one application runs real-time analysis, other
• DLow cost. DIS has no upfront cost and users only need to pay for the resources they actually use.

• A
  3% (2)
• B
  17% (11)
• C
  72% (47)
• D
  8% (5)

Explanation

Option C is the wrong description because DIS supports parallel processing, not serial processing - multiple applications can simultaneously read and analyze data from the same DIS stream at the same time, which is one of its core strengths for real-time analytics workloads.

Options A, B, and D are all accurate: DIS genuinely offers fast channel creation (A), elastic throughput scaling (B), and a pay-as-you-go pricing model with no upfront cost (D) - these are standard cloud-native service advantages that Huawei Cloud markets for DIS.

Memory tip: Think of DIS like a river with multiple boats - many applications can sail on it simultaneously. "Serial" implies a single-lane road where only one car moves at a time, which is the opposite of what a data streaming service is designed to do. If a feature description contradicts the fundamental value proposition of a streaming/ingestion service, it's almost certainly the wrong one.

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