Question
Read the passage below and choose the option that most
strengthens the argument. Passage: Skeptics of implementing "Smart Traffic Grids" in metropolitan cities argue that the reliance on automated sensors will lead to massive system failures during peak hours, causing gridlock. However, this concern is unfounded; in Singapore, a comprehensive Smart Traffic Grid has been operational for years, and the city has seen a consistent decrease in traffic congestion during peak times. Therefore, other major metropolises should confidently adopt similar automated systems. Which of the following, if true, most strengthens the argument?Solution
Analysis of the Argument: The passage uses the success of a system in one location (Singapore) to justify its implementation in other locations. This is an "argument by analogy." Statement C is correct: It strengthens the argument by validating the analogy. If the traffic patterns and urban density are similar, the success seen in Singapore is much more likely to be replicated in the new cities. This bridges the gap between the two different environments. A is incorrect: This might actually weaken the argument, as it suggests the system's success in Singapore might be due to fewer cars on the road rather than the technology itself. B is incorrect: The cost of the software is not the focus of the argument, which is concerned with system reliability and traffic flow. D is incorrect: Success in an unrelated sector (banking) does not necessarily prove that traffic sensors will be reliable under the physical stress of peak-hour road conditions.
In a star schema, what is the main advantage of using surrogate keys in fact tables?
Data cleansing is primarily concerned with:
In a data warehouse, which type of table stores quantitative data for analysis?
Which of the following is NOT a common OLAP operation?
Which of these is not a typical data warehouse characteristic?
Which of the following is used to maintain information about the structure of a data warehouse?
What is meant by 'cardinality' in data modeling?
Which of the following is a key process in ETL?
A star schema in a data warehouse consists of:
Which operation in OLAP allows selecting a single dimension from a cube?