PCI-DSS ISA Exam Questions and
Answers Graded A+
Perimeter firewalls installed ______________________________. ✔✔between all wireless
networks and the CHD environment.
Where should firewalls be installed? ✔✔At each I
...
PCI-DSS ISA Exam Questions and
Answers Graded A+
Perimeter firewalls installed ______________________________. ✔✔between all wireless
networks and the CHD environment.
Where should firewalls be installed? ✔✔At each Internet connection and between any DMZ and
the internal network.
Review of firewall and router rule sets at least every __________________. ✔✔6 months
If disk encryption is used ✔✔logical access must be managed separately and independently of
native operating system authentication and access control mechanisms
Manual clear-text key-management procedures specify processes for the use of the following:
✔✔Split knowledge AND Dual control of keys
What is considered "Sensitive Authentication Data"? ✔✔Card verification value
When a PAN is displayed to an employee who does NOT need to see the full PAN, the minimum
digits to be masked are: All digits between the ___________ and the __________. ✔✔first 6;
last 4
Regarding protection of PAN... ✔✔PAN must be rendered unreadable during the transmission
over public and wireless networks.
Under requirement 3.4, what method must be used to render the PAN unreadable? ✔✔Hashing
the entire PAN using strong cryptography
Weak security controls that should NOT be used ✔✔WEP, SSL, and TLS 1.0 or earlier
Per requirement 5, anti-virus technology must be deployed_________________ ✔✔on all
system components commonly affected by malicious software.
Key functions for anti-vius program per Requirement 5: ✔✔1) Detect
2) Remove
3) Protect
Anti-virus solutions may be temporarily disabled only if ✔✔there is legitimate technical need, as
authorized by management on a case-by-case basis
When to install "critical" applicable vendor-supplied security patches? ---> within _________ of
release. ✔✔1 month
When to install applicable vendor-supplied security patches? ✔✔within an appropriate time
frame (for example, within three months).
When assessing requirement 6.5, testing to verify secure coding techniques are in place to
address common coding vulnerabilities includes: ✔✔Reviewing software development policies
and procedures
Requirements 7 restricted access controls by: ✔✔Need-to-know and least privilege
Inactive accounts over _____________days need to be removed or disabled. ✔✔90 days
To verify user access termination policy, an ISA need to select a sample of user terminated in the
past _______________ months, and review current user access lists—for both local and remote
access—to verify that their IDs have been deactivated or removed from the access lists. ✔✔6
months
How many logon attempts should be allowed until resulting temporarily account locked-out?
✔✔6 attempts
Once user account is locked-out, it will remain locked for a minimum of
________________________ or until a system administrator resets the account. ✔✔30 minutes
System/session idle time out must be set to_________ minutes or less. ✔✔15 minutes
What are the methods to authenticate users? ✔✔- "Something you know", such as a password or
passphrase
- "Something you have", such as a token device or smart card, or
- "Something you are", such as a biometric.
Where passwords or pass-phrases are used, they must be at least _______ characters long and
contain both numeric and alphabetic characters. ✔✔7
Passwords must be changed at least once every__________________. ✔✔90 days
Password history must also be in place to ensure that users' ________ previous passwords can't
be re-used. ✔✔4
An example of a "one-way" cryptographic function used to render data unreadable is: ✔✔SHA-2
Data from video cameras and/or access control mechanisms is reviewed, and that data is stored
for at least ________________. ✔✔3 months
The visitor logs must contain the relevant information and be retained for at
least_________________. ✔✔3 months
Verify that the storage location security is reviewed at least ____________________ to confirm
that backup media storage is secure. ✔✔annually
Review media inventory logs to verify that logs are maintained and media inventories are
performed at least______________. ✔✔annually
Using time-synchronization technology, synchronize all critical system clocks and times and
ensure that the following is implemented for: ✔✔acquiring, distributing, and storing time
All security events and logs of (a) all system components that store, process, or transmit CHD;
(b) critical system components; (c) components that perform security functions (for example,
firewalls, intrusion-detection systems/intrusion-prevention systems (IDS/IPS), authentication
servers, e-commerce redirection servers, etc.) to be reviewed at least ______________. ✔✔daily
Audit logs must be immediately available for analysis for a period of ________ and must be
retained for a period of _________. ✔✔3 months; 1 year
Detection and identification of authorized and unauthorized wireless access points must occur
_________________. ✔✔quarterly
Run internal and external network vulnerability scans at least ____________________ and after
any significant change in the network ✔✔quarterly
"External" vulnerability scans must be run by ____________ and perform ________________.
✔✔an ASV; quarterly
For external scans, no vulnerabilities exist that are scored _____________ by the CVSS. ✔✔4.0
or higher
Penetration testing for "Service Provider" in which targeting segmentation controls must be
perform every __________________. ✔✔6 months
FIM tools must be configured to perform critical file comparisons check at
least_______________, ✔✔weekly
A retail location that does not use wireless devices in store must test for the presence of
unauthorized wireless devices every ________________. ✔✔quarter
Verify that personnel attend security awareness training upon hire and at least
___________________. ✔✔annually
Appendix A1 applies to ✔✔hosting providers
Appendix A2 applies to ✔✔entities using SSL/Early TLS
Appendix A3 applies to ✔✔Designated Entities Supplemental Validation (DESV)
An entity is required to undergo an assessment according to this Appendix ONLY if instructed to
do so by
an acquirer or a payment brand.
Designated entities (DESV) must document and confirm the accuracy of PCI DSS scope at
least_________ and upon significant changes to the in-scope environment. ✔✔quarterly
Designated Entities (DESV) must ensure that pen tests are performed on "segmentation controls"
every _________________, and after significant changes. ✔✔6 months
In regards to DESV, user accounts and access privileges are reviewed at least
every______________. ✔✔6 months
ASV scans must cover__________________________________. ✔✔ALL Internet-Facing IP
addresses in existence at the entity.
Compensating controls need to be evaluated at least_________________. ✔✔annually
Compensating controls requirement 1: ✔✔Constrains
Compensating controls requirement 2: ✔✔Objective
Compensating controls requirement 3: ✔✔Risk
Compensating controls requirement 4: ✔✔Definition
Compensating controls requirement 5: ✔✔Validation
Compensating controls requirement 6: ✔✔Maintenance
QSAs are required to retain work papers for a minimum of ____________, and it is also
recommended that ISAs retain work papers for a minimum of ___________. ✔✔3 years; 3 years
The decision about a merchant's level is made by the: ✔✔merchant's acquirer
Service provider levels are defined by ___________________________. ✔✔the payment brands
according to transaction volume and/or type of service provider.
Issuer ✔✔Bank or other organization issuing a payment card on behalf of a Payment Brand.
Merchant ✔✔Organization accepting the payment card for payment during a purchase
Acquirer ✔✔Bank or entity the merchant uses to process their payment card transactions
Acquirer is also called:
Merchant Bank
ISO (sometimes)
Payment Brand - Amex, Discover, JCB
Never Visa or MasterCard
only one primary function ✔✔Verify system configurations that
________________________________ is implemented per server.
Do not store _____ AFTER authorization even if ___________. ✔✔sensitive authentication
data; encrypted
(sensitive auth data: track data, verification code, PIN)
Req 3.3: Protection of PAN that displayed on screens, paper receipts, etc. by
_____________________ ✔✔masking the PAN and only show first 6 digits and last 4 digits.
Req 3.4: Protection of PAN when stored in files, databases, etc. by ______________.
(hint: do what to the information?) ✔✔render the information unreadable.
Disk Encryption ✔✔Must verify that logical access to encrypted file systems is implemented via
a mechanism that is separate from the native operating system's authentication mechanism.
Key-encrypting keys are ___________________ as data-encrypting keys and
___________________. ✔✔at least as strong; stored separately.
Key Management documentation must specifies the following: ✔✔Procedures to:
1. Generate strong keys
2. Securely distribute keys
3. Securely store keys
4. Defined cryptoperiod
PAN must be ✔✔render unreadable during transmission over PUBLIC wireless network.
Split knowledge ✔✔Two or more entities need to separately have key components that
individually convey no knowledge of the resultant cryptographic key
Dual control ✔✔Required the present of two individuals to perform a task
Critical vendor supplied patches should be installed within_______________. ✔✔1 month
What is the proper handling of displaying an error message? ✔✔by returning generic rather than
specific error details (to not leak too much information about the system)
For public web facing application, do we use both or either one of these methods?
1) Use either manual or automated vulnerability security assessment tools or methods at least
annually and after any changes.
2) Use of automated technical solution that detects and prevents web-based attacks (WAP)
✔✔Either One
Req 7.1 - Limited access to what user roles based on _______________. ✔✔Least privileges and
need-to-know basis based on job functions.
Req 7.2 - Access control system must be set to _____________ by default. ✔✔deny-all
Multi-factor authentication is required for: ______________________ and _________. ✔✔All
remote access by personnel (user and administrator) and all third-party/vendor remote access
An example of a "one-way" cryptographic function used to render data unreadable is: ✔✔SHA-2
Req 10.4: Time-synchronization technology - What type of server is required to receives time
signals from external sources, and time signals from external sources are based on International
Atomic Time or UTC. ✔✔Central time server(s)
- Where there is more than one designated time server, the time servers peer with one another to
keep accurate time
- Systems receive time information only from designated central time server(s).
IDS and IPS must be in place to monitor all traffic at ______________ and ____________.
✔✔the perimeter and at critical points
Reviewing and confirming that personnel are following security policies and operational
procedures, and that reviews cover:
- Daily log reviews
- Firewall rule-set reviews
- Applying configuration standards to new systems
- Responding to security alerts
- Change management processes
This must be review at least ______________. ✔✔Quarterly
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