- A
TLS for in transit and AES-256 for at rest
TLS secures data during transmission, and AES-256 (via cloud provider encryption) secures stored data, meeting both requirements.
- B
SSL for at rest and IPsec for in transit
Why wrong: SSL is a protocol for in-transit encryption, not at rest; IPsec is also for in-transit, so this combination leaves at-rest data unencrypted.
- C
VPN for in transit and hashing for at rest
Why wrong: A VPN encrypts traffic but is typically used for site-to-site connections, not necessarily for database connections; hashing is one-way and not suitable for encrypting stored data that needs to be decrypted.
- D
SSH tunneling for at rest and TLS for in transit
Why wrong: SSH tunneling encrypts data in transit, not at rest; this would double-encrypt in transit but leave stored data unprotected.
Quick Answer
The correct combination is TLS for data in transit and AES-256 for data at rest. TLS, or Transport Layer Security, encrypts the communication channel between the application and the cloud database, ensuring that sensitive customer information cannot be intercepted during migration or ongoing access. For data at rest, AES-256 is the industry-standard symmetric encryption algorithm used by cloud providers to protect stored data on disk, typically implemented through services like AWS EBS encryption or Azure SQL Transparent Data Encryption. On the CompTIA A+ Core 1 220-1201 exam, this question tests your understanding of how to pair encryption technologies with their specific use cases—a common trap is confusing TLS with at-rest encryption or assuming a single method covers both. Remember the memory tip: “TLS travels, AES stays” to quickly recall that TLS secures data in motion while AES-256 secures data sitting still.
220-1101 Cloud Computing Concepts Practice Question
This 220-1201 practice question tests your understanding of cloud computing concepts. 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.
A technician is migrating a database from an on-premises server to a cloud platform. The database contains sensitive customer information. The company requires that data be encrypted both at rest and in transit. Which combination of technologies should the technician implement?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
TLS for in transit and AES-256 for at rest
For data in transit, TLS/SSL encrypts communication between the application and the database. For data at rest, the cloud provider's encryption feature (e.g., AWS EBS encryption or Azure SQL TDE) encrypts the stored data. AES-256 is a common encryption standard for at-rest data, but it must be implemented by the provider's service.
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.
- ✓
TLS for in transit and AES-256 for at rest
- ✗
SSL for at rest and IPsec for in transit
- ✗
VPN for in transit and hashing for at rest
Why it's wrong here
A VPN encrypts traffic but is typically used for site-to-site connections, not necessarily for database connections; hashing is one-way and not suitable for encrypting stored data that needs to be decrypted.
- ✗
SSH tunneling for at rest and TLS for in transit
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 220-1201 NAT questions on configuration and troubleshooting.
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FAQ
Questions learners often ask
What does this 220-1201 question test?
Cloud Computing Concepts — This question tests Cloud Computing Concepts — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: TLS for in transit and AES-256 for at rest — For data in transit, TLS/SSL encrypts communication between the application and the database. For data at rest, the cloud provider's encryption feature (e.g., AWS EBS encryption or Azure SQL TDE) encrypts the stored data. AES-256 is a common encryption standard for at-rest data, but it must be implemented by the provider's service.
What should I do if I get this 220-1201 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 220-1201 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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Last reviewed: Jun 18, 2026
This 220-1201 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 220-1201 exam.
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