Question 260 of 481
1Z0-811 What is Java Practice Question
A team deploys a Java application and observes frequent Full GC pauses. Which garbage collector is designed to minimize pause times?
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
✓
Garbage-First (G1GC) (-XX:+UseG1GC)
G1GC (Garbage-First) is designed to provide predictable pause times and minimize Full GC pauses by dividing the heap into regions and collecting the regions with the most garbage first. Option B (CMS) was also designed for low pauses but is deprecated and can cause fragmentation. Option C (Serial) is for single-threaded environments and has long pauses. Option D (Parallel) focuses on throughput, not pause times.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Garbage-First (G1GC) (-XX:+UseG1GC)
Why this is correct
G1GC aims to limit pause times and reduce Full GC frequency.
- ✗
Concurrent Mark Sweep (CMS) (-XX:+UseConcMarkSweepGC)
Why it's wrong here
CMS is deprecated and can lead to fragmentation and longer pauses.
- ✗
Serial GC (-XX:+UseSerialGC)
Why it's wrong here
Serial GC uses a single thread and has long stop-the-world pauses.
- ✗
Parallel GC (-XX:+UseParallelGC)
Why it's wrong here
Parallel GC prioritizes throughput over pause times.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jun 23, 2026
This 1Z0-811 practice question is part of Courseiva's free Oracle 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 1Z0-811 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.