All of the Following Are Principles of Data Replication in a Distributed

question 19

Multiple Choice

All of the following are principles of data replication in a distributed database network, except ____.

• A) place a copy of every table at a central node to avoid having a bottleneck
• B) place copies of tables at the sites that use them most heavily in order to minimize telecommunications costs
• C) ensure that there are at least two copies of important or frequently used tables to realize the gains in availability
• D) limit the number of copies of any one table to control the security and concurrency issues
• E) avoid any one site becoming a bottleneck to maintain performance

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Definitions:

High Barriers

Obstacles that make it difficult for new entrants to enter a market, including high starting costs, stringent regulations, or strong competition.

Differentiated Products

Goods or services that are distinguished from others by quality, branding, or other features, leading to non-price competition among firms.

Collude

When two or more firms work together to set prices, limit supply, or engage in other practices to restrict competition and manipulate market outcomes.

Perfect Competitors

In a perfectly competitive market, firms that have no market power and cannot set prices, with many buyers and sellers trading identical products.