Memories can be differentiated based on ____________.a.Indexesb.Speedc.Costd.Both B & C

Break Down the Problem

1. Identify the factors that differentiate memories.
2. Determine which options are relevant to the characteristics of memory.

Relevant Concepts

• Memory can be characterized by several attributes, including speed (how quickly data can be accessed or written) and cost (the expense associated with storing data).
• Indexes are more about retrieval structures rather than a defining characteristic of memory types.

Analysis and Detail

1. Speed: Refers to how fast the memory can read or write data. For example, RAM is faster than disk storage.
2. Cost: Refers to how much it costs to implement a particular type of memory storage. Typically, faster memory (like SSDs) tends to be more expensive than slower options (like HDDs).
3. Indexes: While indexes are important for data retrieval in databases, they don’t inherently differentiate the types of memory.

Verify and Summarize

Only options B (Speed) and C (Cost) are relevant differentiators for types of memory. Hence, the correct answer involves both speed and cost.

Final Answer

d. Both B & C