PCI ISA Exam Internal Security Assessor Certification
Official Practice Exam 2026/2027 Complete Exam-Style
Questions with Detailed Rationales | 100% Verified | Pass
Guaranteed – A+ Graded
TABLE OF CONTENTS
Section 1 | PCI DSS Overview & Requirements | Q1 – Q13
Section 2 | Risk Assessment & Gap Analysis | Q14 – Q23
Section 3 | SAQ, ROC & PCI DSS Validation | Q24 – Q33
Section 4 | Scoping & Segmentation | Q34 – Q40
Section 5 | Cloud, eCommerce & Emerging Technologies | Q41
– Q45
Section 6 | NGN-Style Case Analysis & Integrated Scenarios |
Q46 – Q50
Instructions: Choose the single best answer. Pass: 40 in 120
minutes.
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SECTION 1: PCI DSS OVERVIEW & REQUIREMENTS Q1 –
Q13
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Question 1 of 50
A regional retail chain processes 150,000 Visa transactions
annually through point-of-sale terminals that store primary
account numbers (PAN) until end-of-day batch processing.
During an internal audit, you discover that PANs are stored in
clear text on the POS terminal hard drives for up to 24 hours
before transmission. Which PCI DSS requirement is most
directly violated by this practice?
A. Requirement 3.1 – Prohibit storage of sensitive authentication
data after authorization
B. Requirement 3.2 – Do not store sensitive authentication data
after authorization
C. Requirement 3.4 – Render PAN unreadable wherever it is
stored ✓ CORRECT
D. Requirement 8.2 – Employ proper user authentication
mechanisms
Correct Answer: C
Rationale: PCI DSS Requirement 3.4 mandates that cardholder
data such as the Primary Account Number must be rendered
unreadable (via hashing, truncation, encryption, or tokenization)
when stored. While Requirements 3.1 and 3.2 specifically
address sensitive authentication data (such as CVV codes and
,3
full track data), which must never be stored after authorization,
the scenario describes PAN storage in clear text, making
Requirement 3.4 the directly applicable control.
Question 2 of 50
A mid-sized e-commerce merchant has implemented a firewall
between their public-facing web server and their internal
network containing the payment application database. The
default vendor passwords on the firewall have been changed to
complex values, but the merchant's IT team has not documented
any formal process for reviewing firewall rule sets. According to
PCI DSS, what additional action is required to satisfy
Requirement 1?
A. Establish a formal change management process for all system
modifications
B. Review firewall and router rule sets at least every six months
and upon any change ✓ CORRECT
C. Conduct quarterly vulnerability scans of all systems
connected to the CDE
D. Implement intrusion detection/prevention systems on all
network segments
, 4
Correct Answer: B
Rationale: PCI DSS Requirement 1.1.7 specifically requires
organizations to review firewall and router rule sets at least
every six months and whenever a change occurs to ensure only
necessary ports, protocols, and services are permitted. While
change management (Requirement 6.4) and vulnerability
scanning (Requirement 11.2) are important controls, they
address different requirements than the periodic review mandate
under Requirement 1.
Question 3 of 50
Your organization's information security policy was last updated
eighteen months ago. Since then, the company migrated its
payment processing to a new cloud-based platform, deployed
two-factor authentication for remote access to the cardholder
data environment, and eliminated all wireless access points from
the retail stores. What does PCI DSS require regarding this
situation?
A. The policy must be reviewed annually and updated whenever
the environment changes significantly ✓ CORRECT
B. The policy requires updating only when a Qualified Security
Assessor identifies gaps during an assessment