WGU D317 OBJECTIVE ASSESSMENT
AND PRACTICE EXAM LATEST 2026 TEST
BANK| D317 IT APPLICATIONS EXAM
PREP WITH COMPLETE 950 REAL EXAM
QUESTIONS AND CORRECT VERIFIED
ANSWERS/ ALREADY GRADED A+
(BRAND NEW!!)
Domain: IT Fundamentals / Networking
1. Which OSI layer is responsible for logical addressing and
routing?
A. Physical
B. Data Link
C. Network
D. Transport
Rationale: The correct answer is C. Network. The Network layer
(Layer 3) handles logical addressing (IP addresses) and routing packets
between networks. The Physical layer (A) deals with cables/signals;
Data Link (B) with MAC addresses and switches; Transport (D) with
end-to-end connections and ports.
,2. In Agile methodology, what is the primary purpose of a "sprint
retrospective"?
A. To demo completed work to stakeholders
B. To plan tasks for the next sprint
C. To review and improve team processes
D. To estimate story points
Rationale: The correct answer is C. A sprint retrospective is a meeting
where the team reflects on the past sprint to discuss what went well,
what didn’t, and how to improve processes. Sprint review (A) demos
work; sprint planning (B) plans the next sprint; story point estimation
(D) happens in backlog grooming.
3. A project has a CPI (Cost Performance Index) of 0.85. What does
this indicate?
A. The project is under budget
B. The project is over budget
C. The project is ahead of schedule
D. The project is behind schedule
Rationale: The correct answer is B. CPI = EV/AC. A CPI < 1.0 means
you are getting less value than what you’re spending → over budget.
CPI relates to cost, not schedule (C, D); over 1.0 would be under budget
(A).
4. Which database normalization form eliminates transitive
dependencies?
A. 1NF
,B. 2NF
C. 3NF
D. BCNF
Rationale: The correct answer is C. Third Normal Form (3NF) removes
transitive dependencies (where a non-key attribute depends on another
non-key attribute). 1NF removes repeating groups; 2NF removes partial
dependencies on a composite key; BCNF is stricter than 3NF for certain
dependency types.
5. In cybersecurity, what does "defense in depth" refer to?
A. Using multiple layers of security controls
B. Encrypting data at rest and in transit
C. Conducting regular penetration tests
D. Implementing strict access controls only
Rationale: The correct answer is A. Defense in depth is a strategy using
multiple, redundant security layers (physical, network, host, application,
data) so if one fails, another provides protection. B, C, and D are specific
controls but not the definition of the layered strategy.
6. RAID 5 requires a minimum of how many disks?
A. 2
B. 3
C. 4
D. 5
Rationale: The correct answer is B. RAID 5 uses block-level striping
with distributed parity and requires at least 3 disks (2 for data, 1 for
parity, though parity is distributed across all disks).
, 7. In IT service management (ITSM), which process is responsible
for managing long-term improvements to IT services?
A. Incident Management
B. Change Management
C. Service Level Management
D. Continual Service Improvement
Rationale: The correct answer is D. Continual Service Improvement
(CSI) focuses on aligning/realigning IT services to business needs
through incremental improvements. Incident (A) handles disruptions;
Change (B) manages changes; Service Level (C) manages agreements.
8. What does the "B" in B-tree stand for?
A. Binary
B. Balanced
C. Branching
D. Bayer (creator’s name)
Rationale: The correct answer is B. B-tree stands for Balanced tree,
meaning all leaf nodes are at the same depth, ensuring efficient search,
insert, delete operations in databases/file systems.
9. A stakeholder requests a major change late in the project. What
should the project manager do FIRST?
A. Implement the change immediately
B. Update the project plan and notify the team
C. Assess impact on scope, time, and cost
D. Deny the change to avoid scope creep
AND PRACTICE EXAM LATEST 2026 TEST
BANK| D317 IT APPLICATIONS EXAM
PREP WITH COMPLETE 950 REAL EXAM
QUESTIONS AND CORRECT VERIFIED
ANSWERS/ ALREADY GRADED A+
(BRAND NEW!!)
Domain: IT Fundamentals / Networking
1. Which OSI layer is responsible for logical addressing and
routing?
A. Physical
B. Data Link
C. Network
D. Transport
Rationale: The correct answer is C. Network. The Network layer
(Layer 3) handles logical addressing (IP addresses) and routing packets
between networks. The Physical layer (A) deals with cables/signals;
Data Link (B) with MAC addresses and switches; Transport (D) with
end-to-end connections and ports.
,2. In Agile methodology, what is the primary purpose of a "sprint
retrospective"?
A. To demo completed work to stakeholders
B. To plan tasks for the next sprint
C. To review and improve team processes
D. To estimate story points
Rationale: The correct answer is C. A sprint retrospective is a meeting
where the team reflects on the past sprint to discuss what went well,
what didn’t, and how to improve processes. Sprint review (A) demos
work; sprint planning (B) plans the next sprint; story point estimation
(D) happens in backlog grooming.
3. A project has a CPI (Cost Performance Index) of 0.85. What does
this indicate?
A. The project is under budget
B. The project is over budget
C. The project is ahead of schedule
D. The project is behind schedule
Rationale: The correct answer is B. CPI = EV/AC. A CPI < 1.0 means
you are getting less value than what you’re spending → over budget.
CPI relates to cost, not schedule (C, D); over 1.0 would be under budget
(A).
4. Which database normalization form eliminates transitive
dependencies?
A. 1NF
,B. 2NF
C. 3NF
D. BCNF
Rationale: The correct answer is C. Third Normal Form (3NF) removes
transitive dependencies (where a non-key attribute depends on another
non-key attribute). 1NF removes repeating groups; 2NF removes partial
dependencies on a composite key; BCNF is stricter than 3NF for certain
dependency types.
5. In cybersecurity, what does "defense in depth" refer to?
A. Using multiple layers of security controls
B. Encrypting data at rest and in transit
C. Conducting regular penetration tests
D. Implementing strict access controls only
Rationale: The correct answer is A. Defense in depth is a strategy using
multiple, redundant security layers (physical, network, host, application,
data) so if one fails, another provides protection. B, C, and D are specific
controls but not the definition of the layered strategy.
6. RAID 5 requires a minimum of how many disks?
A. 2
B. 3
C. 4
D. 5
Rationale: The correct answer is B. RAID 5 uses block-level striping
with distributed parity and requires at least 3 disks (2 for data, 1 for
parity, though parity is distributed across all disks).
, 7. In IT service management (ITSM), which process is responsible
for managing long-term improvements to IT services?
A. Incident Management
B. Change Management
C. Service Level Management
D. Continual Service Improvement
Rationale: The correct answer is D. Continual Service Improvement
(CSI) focuses on aligning/realigning IT services to business needs
through incremental improvements. Incident (A) handles disruptions;
Change (B) manages changes; Service Level (C) manages agreements.
8. What does the "B" in B-tree stand for?
A. Binary
B. Balanced
C. Branching
D. Bayer (creator’s name)
Rationale: The correct answer is B. B-tree stands for Balanced tree,
meaning all leaf nodes are at the same depth, ensuring efficient search,
insert, delete operations in databases/file systems.
9. A stakeholder requests a major change late in the project. What
should the project manager do FIRST?
A. Implement the change immediately
B. Update the project plan and notify the team
C. Assess impact on scope, time, and cost
D. Deny the change to avoid scope creep
