ACA Database Services

Question 1

In Alibaba Cloud Certified Associate, what is the purpose of a literature review in database services?

Accepted Answer

To survey existing research and identify gaps that the current study addresses

Answer

To copy findings from other researchers

Answer

To list all publications by a single author

Answer

To determine the budget for the study

Question 2

What is the difference between qualitative and quantitative research in Alibaba Cloud Certified Associate?

Accepted Answer

Qualitative explores experiences and meanings; quantitative measures and counts numerical data

Answer

Qualitative is always more rigorous than quantitative

Answer

Quantitative cannot be used in social sciences

Answer

There is no meaningful difference between them

Question 3

In Alibaba Cloud Certified Associate, what does "statistical significance" mean?

Accepted Answer

The result is unlikely to have occurred by chance alone (typically p < 0.05)

Answer

The result is practically important in real-world terms

Answer

The study used a large sample size

Answer

The findings confirm the researcher's hypothesis

Question 4

What is a "control group" in Alibaba Cloud Certified Associate research?

Accepted Answer

A group that does not receive the experimental treatment, serving as a baseline comparison

Answer

The group that receives the experimental treatment

Answer

A group of researchers overseeing the study

Answer

The largest group in any experiment

Question 5

In Alibaba Cloud Certified Associate, what is sampling bias?

Accepted Answer

A systematic error where some members of a population are more likely to be selected than others

Answer

Selecting a perfectly representative sample

Answer

Using the largest possible sample size

Answer

Randomly selecting participants from the entire population

Question 6

What is the purpose of peer review in Alibaba Cloud Certified Associate database services?

Accepted Answer

To have qualified experts evaluate research quality before publication

Answer

To allow friends to proofread for spelling errors

Answer

To speed up the publication process

Answer

To guarantee that all research is approved