1. Which of the following is not a key component of the epidemiologic

triad?

A) Host factors

B) Environmental factors

C) Socioeconomic factors

D) Genetic factors

Answer: D) Genetic factors

Rationale: The epidemiologic triad consists of three key components -

host factors, environmental factors, and agent factors.

2. Which of the following is a measure of disease frequency in a

population?

A) Prevalence

B) Incidence

C) Mortality rate

D) Case fatality rate

Answer: A) Prevalence

Rationale: Prevalence is the proportion of a population affected by a

particular disease or condition at a specific point in time.

3. Which of the following is considered a core function of public health

surveillance?

A) Disease prevention

B) Data collection

C) Health education

D) Policy development

Answer: B) Data collection