CAS-004 Security Architecture Practice Question
Which of the following is a key feature of TLS 1.3 compared to earlier versions?
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
✓
Reduced handshake latency
TLS 1.3 reduces handshake latency by eliminating unnecessary round trips and removing insecure cipher suites, improving both security and performance.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Mandatory use of static RSA key exchange
Why it's wrong here
TLS 1.3 removed static RSA and other insecure key exchanges.
- ✗
Support for RC4 cipher
Why it's wrong here
RC4 is deprecated and not supported in TLS 1.3.
- ✗
Backward compatibility with SSL 3.0
Why it's wrong here
TLS 1.3 is not backward compatible with SSL.
- ✓
Reduced handshake latency
Why this is correct
TLS 1.3 requires one round trip (or zero with pre-shared keys) compared to two in TLS 1.2.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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