Java I/O API and Securing Applications →easyMultiple ChoiceObjective-mapped

1Z0-829 Java I/O API and Securing Applications Practice Question

Exhibit

CLI output of 'keytool -list -keystore mykeystore.jks -storepass changeit':

alias: myserver
Certificate fingerprint (MD5): 0F:AA:3B:87:1C:3F:BE:21:4D:2E:5F:6A:7B:8C:9D:0E

Refer to the exhibit. Which algorithm was used to generate the certificate fingerprint shown?

⚠ Common exam trap

It's easy for candidates to confuse the output length of hash algorithms: MD5 (32 hex chars) is frequently mistaken for SHA-1 (40 hex chars) or SHA-256 (64 hex chars), leading them to pick a wrong answer based on familiarity rather than counting the hex digits.

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

✓

MD5

The certificate fingerprint shown is a 32-character hexadecimal string, which corresponds to a 128-bit hash. MD5 produces a 128-bit (16-byte) hash, displayed as 32 hex digits. This matches the fingerprint format exactly, confirming that MD5 was used.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
SHA-1
Why it's wrong here
The exhibit does not indicate SHA-1; it shows MD5.
✓
MD5
Why this is correct
The fingerprint shown is MD5 as indicated in the exhibit.
✗
SHA-384
Why it's wrong here
SHA-384 is not mentioned.
✗
SHA-256
Why it's wrong here
The label says MD5, not SHA-256.

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1Z0-829 Java I/O API and Securing Applications Practice Question

Exhibit

Why each option matters

Option-by-option breakdown

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