Quick Answer
TLS 1.2 is the correct choice because it is the industry-standard secure protocol for data in transit, providing robust encryption, integrity, and authentication for HTTP traffic handling sensitive financial transactions. Unlike deprecated SSL 3.0, which has known practical vulnerabilities, TLS 1.2 offers strong cipher suites and perfect forward secrecy, ensuring that intercepted data cannot be decrypted even if a private key is later compromised. On the Systems Security Certified Practitioner (SSCP) exam, this question tests your understanding of cryptographic protocols in the Communications and Network Security domain, often appearing as a straightforward scenario where you must distinguish between secure and insecure options. A common trap is choosing SSL 3.0 or TLS 1.0 due to their historical prevalence, but remember that only TLS 1.2 or higher meets current security standards for protecting data in transit. Memory tip: think “TLS 1.2, the trusted two-step” — it requires both a valid certificate and a strong handshake to secure the channel.
This SSCP practice question tests your understanding of cryptography. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 company deploys a web application that handles sensitive financial transactions. To protect data in transit, which protocol should be used?
SSH (Secure Shell)
Why wrong: SSH is for secure remote login, not web traffic.
SSL 3.0
Why wrong: SSL 3.0 is deprecated and vulnerable to POODLE attack.
IPsec in transport mode
Why wrong: IPsec is typically used for VPNs, not directly for web applications.
TLS 1.2
TLS 1.2 is secure and appropriate for web applications.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
TLS 1.2
TLS 1.2 is the correct choice because it is the industry-standard protocol for securing HTTP traffic, providing encryption, integrity, and authentication for data in transit. It is widely supported, has no known practical vulnerabilities (unlike SSL 3.0), and is specifically designed for web application protocols like HTTPS, making it ideal for protecting sensitive financial transactions.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
SSH (Secure Shell)
Why it's wrong here
SSH is for secure remote login, not web traffic.
SSL 3.0
Why it's wrong here
SSL 3.0 is deprecated and vulnerable to POODLE attack.
IPsec in transport mode
Why it's wrong here
IPsec is typically used for VPNs, not directly for web applications.
TLS 1.2
Why this is correct
TLS 1.2 is secure and appropriate for web applications.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates often confuse SSH with a general-purpose encryption protocol or think SSL 3.0 is still acceptable because it was historically used, but the exam tests awareness of deprecated protocols and the correct protocol for web-specific security.
Detailed technical explanation
TLS 1.2 uses a combination of symmetric encryption (e.g., AES-256), asymmetric key exchange (e.g., ECDHE), and message authentication codes (e.g., HMAC-SHA256) to provide forward secrecy and data integrity. In practice, a web application handling financial transactions would enforce HTTPS over TLS 1.2, often with HSTS headers to prevent downgrade attacks, and must disable older protocols like SSL 3.0 and TLS 1.0 to comply with PCI DSS requirements.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A developer is choosing between AES-256 (symmetric) and RSA-2048 (asymmetric) for encrypting a large file that will be sent to a partner. Symmetric encryption is fast but requires key exchange; asymmetric is slower but solves the key distribution problem. A hybrid approach — encrypt the file with AES, encrypt the AES key with RSA — is standard. Questions like this test whether you understand when each approach applies.
What to study next
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FAQ
Cryptography — This question tests Cryptography — Read the scenario before looking for a memorised answer..
The correct answer is: TLS 1.2 — TLS 1.2 is the correct choice because it is the industry-standard protocol for securing HTTP traffic, providing encryption, integrity, and authentication for data in transit. It is widely supported, has no known practical vulnerabilities (unlike SSL 3.0), and is specifically designed for web application protocols like HTTPS, making it ideal for protecting sensitive financial transactions.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 25, 2026
This SSCP practice question is part of Courseiva's free ISC2 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 SSCP exam.
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