The correct answer is increased risk of malware infections due to unmanaged devices, along with support complexity and data leakage. These three challenges directly impact information systems operations because unmanaged personal devices bypass centralized security controls, creating entry points for malware that can spread across the corporate network. Support complexity arises from the diverse hardware and software configurations that IT must manage, while data leakage occurs when sensitive corporate information is stored or transmitted on devices outside the organization’s direct control. On the Certified Information Systems Auditor CISA exam, this topic tests your understanding of how BYOD policy challenges affect operational risk and control design; a common trap is confusing an advantage—like increased employee productivity—with a challenge. To remember the three correct options, use the mnemonic “MAD” for Malware, Administrative complexity, and Data leakage, which are the core operational threats that auditors must evaluate when reviewing BYOD policies.
CISA Practice Question: Information Systems Operations and Business Resilience
This CISA practice question tests your understanding of information systems operations and business resilience. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which THREE of the following are common challenges when implementing a bring-your-own-device (BYOD) policy that affect information systems operations? (Select exactly 3.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Difficulty in enforcing data encryption and remote wipe capabilities
Options A, C, and D are correct. BYOD introduces security risks (A), support complexity (C), and data leakage (D). Option B is an advantage, not a challenge; Option E is less common as a challenge compared to the others.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Difficulty in enforcing data encryption and remote wipe capabilities
Why this is correct
Ensuring data security on personal devices is challenging.
Related concept
Static NAT maps one inside address to one outside address.
✗
Reduced hardware procurement costs for the organization
Why it's wrong here
Cost reduction is a benefit, not a challenge.
✗
Increased employee productivity due to device familiarity
Why it's wrong here
This is a benefit, not a challenge.
✓
Incompatibility between corporate applications and various device platforms
Why this is correct
Diverse devices may not support all enterprise apps, causing operational issues.
Related concept
Static NAT maps one inside address to one outside address.
✓
Increased risk of malware infections due to unmanaged devices
Why this is correct
Personal devices may lack security controls, increasing infection risk.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related CISA NAT questions on configuration and troubleshooting.
Information Systems Operations and Business Resilience — This question tests Information Systems Operations and Business Resilience — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Difficulty in enforcing data encryption and remote wipe capabilities — Options A, C, and D are correct. BYOD introduces security risks (A), support complexity (C), and data leakage (D). Option B is an advantage, not a challenge; Option E is less common as a challenge compared to the others.
What should I do if I get this CISA question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related CISA NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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