WGU D402 COMMUNITY AND PUBLIC HEALTH OA EXAM – QUESTIONS AND ANSWERS | VERIFIED AND WELL
DETAILED ANSWERS | PLUS RATIONALES | DOWNLOAD AND PASS | LATEST EXAM UPDATE 2026/2027
Core Domains
Epidemiology and Disease Surveillance
Program Planning and Evaluation
Health Behavior Theory
Public Health Policy and Law
Environmental Health
Ethics in Public Health
Emergency Preparedness and Response
Cultural Competency and Health Equity
Community Engagement and Advocacy
Global Health and Disparities
Introduction
This comprehensive examination is designed to assess the knowledge, critical thinking, and decision-making skills
essential for success in community and public health practice. The assessment covers foundational theories, applied
,professional knowledge, regulatory frameworks, and ethical standards. It incorporates multiple-choice questions and
real-world scenarios to evaluate your ability to synthesize information and apply concepts to practical situations. The
emphasis is on professional judgment and the application of public health principles to protect and improve the health
of populations. This exam reflects the rigorous standards expected of a public health professional and serves as a
valuable tool for preparation and self-assessment.
SECTION ONE: QUESTIONS 1–50
Question 1
A community health nurse is planning a primary prevention strategy to address the rising rate of type 2 diabetes in a
local population. Which of the following activities best exemplifies this level of prevention?
A. Organizing a community-wide diabetes screening event to identify undiagnosed cases.
B. Teaching a nutrition and physical activity course at a local senior center.
C. Managing a support group for individuals newly diagnosed with diabetes.
D. Coordinating a program to help diabetic patients manage their medications.
🟢 Correct Answer: B. Teaching a nutrition and physical activity course at a local senior center.
,🔴 Explanation: Primary prevention aims to prevent disease before it occurs. Teaching a nutrition and physical
activity course is a proactive measure to prevent the onset of type 2 diabetes by promoting healthy behaviors.
Screening is secondary prevention, and managing support groups or medications are tertiary prevention strategies.
Question 2
According to the epidemiological triangle, which component represents the underlying factors that contribute to
disease transmission, such as population density and sanitation?
A. Agent
B. Host
C. Environment
D. Vector
🟢 Correct Answer: C. Environment
🔴 Explanation: The epidemiological triangle consists of agent, host, and environment. The environment includes
external factors that affect the agent and the opportunity for exposure, such as population density, sanitation, and
climate. Agents are the causes of disease (e.g., bacteria), hosts are the organisms harboring the disease, and vectors
are organisms that transmit the agent.
, Question 3
A public health official is reviewing the leading health indicators for a community to assess overall health status.
Which of the following is considered a leading health indicator?
A. Total number of hospital beds in the community.
B. The rate of unemployment in the region.
C. The prevalence of obesity among adults.
D. The number of primary care physicians per capita.
🟢 Correct Answer: C. The prevalence of obesity among adults.
🔴 Explanation: Leading health indicators are high-priority health issues that reflect major public health concerns.
Obesity is a key indicator because it is a significant risk factor for many chronic diseases. While hospital beds,
unemployment, and physician count are relevant social determinants, they are not standard leading health
indicators for public health surveillance.
Question 4
DETAILED ANSWERS | PLUS RATIONALES | DOWNLOAD AND PASS | LATEST EXAM UPDATE 2026/2027
Core Domains
Epidemiology and Disease Surveillance
Program Planning and Evaluation
Health Behavior Theory
Public Health Policy and Law
Environmental Health
Ethics in Public Health
Emergency Preparedness and Response
Cultural Competency and Health Equity
Community Engagement and Advocacy
Global Health and Disparities
Introduction
This comprehensive examination is designed to assess the knowledge, critical thinking, and decision-making skills
essential for success in community and public health practice. The assessment covers foundational theories, applied
,professional knowledge, regulatory frameworks, and ethical standards. It incorporates multiple-choice questions and
real-world scenarios to evaluate your ability to synthesize information and apply concepts to practical situations. The
emphasis is on professional judgment and the application of public health principles to protect and improve the health
of populations. This exam reflects the rigorous standards expected of a public health professional and serves as a
valuable tool for preparation and self-assessment.
SECTION ONE: QUESTIONS 1–50
Question 1
A community health nurse is planning a primary prevention strategy to address the rising rate of type 2 diabetes in a
local population. Which of the following activities best exemplifies this level of prevention?
A. Organizing a community-wide diabetes screening event to identify undiagnosed cases.
B. Teaching a nutrition and physical activity course at a local senior center.
C. Managing a support group for individuals newly diagnosed with diabetes.
D. Coordinating a program to help diabetic patients manage their medications.
🟢 Correct Answer: B. Teaching a nutrition and physical activity course at a local senior center.
,🔴 Explanation: Primary prevention aims to prevent disease before it occurs. Teaching a nutrition and physical
activity course is a proactive measure to prevent the onset of type 2 diabetes by promoting healthy behaviors.
Screening is secondary prevention, and managing support groups or medications are tertiary prevention strategies.
Question 2
According to the epidemiological triangle, which component represents the underlying factors that contribute to
disease transmission, such as population density and sanitation?
A. Agent
B. Host
C. Environment
D. Vector
🟢 Correct Answer: C. Environment
🔴 Explanation: The epidemiological triangle consists of agent, host, and environment. The environment includes
external factors that affect the agent and the opportunity for exposure, such as population density, sanitation, and
climate. Agents are the causes of disease (e.g., bacteria), hosts are the organisms harboring the disease, and vectors
are organisms that transmit the agent.
, Question 3
A public health official is reviewing the leading health indicators for a community to assess overall health status.
Which of the following is considered a leading health indicator?
A. Total number of hospital beds in the community.
B. The rate of unemployment in the region.
C. The prevalence of obesity among adults.
D. The number of primary care physicians per capita.
🟢 Correct Answer: C. The prevalence of obesity among adults.
🔴 Explanation: Leading health indicators are high-priority health issues that reflect major public health concerns.
Obesity is a key indicator because it is a significant risk factor for many chronic diseases. While hospital beds,
unemployment, and physician count are relevant social determinants, they are not standard leading health
indicators for public health surveillance.
Question 4
