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20250429 AWS DynamoDB ๋ ผ๋ฌธ ๋จ์ด/๋ฌธ์ฅ ์ ๋ฆฌ
Chann._.y
2025. 4. 29. 23:34
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๐ ๋จ์ด & ๋ฌธ์ฅ ์ ๋ฆฌ
1. is eligible to
- ์๋ฏธ: โผํ ์๊ฒฉ์ด ์๋ค
- ์ฉ๋ก:
- She is eligible to apply for the scholarship.
- He is eligible to vote in the upcoming election.
- Only members are eligible to receive the benefits.
2. for sake of
- ์๋ฏธ: โผ์ ์ํด์
- ์ฉ๋ก:
- She gave up her career for the sake of her family.
- Let's try to stay calm for the sake of the children.
- He studied hard for the sake of his future.
3. yields a system
- ์๋ฏธ: ํ๋์ ์์คํ ์ ์ฐ์ถํ๋ค, ์์คํ ์ ๋ง๋ค์ด๋ด๋ค
- ์ฉ๋ก:
- Combining these equations yields a system that can be solved easily.
- This process yields a system of linear inequalities.
- The experiment yields a system capable of autonomous movement.
4. quorum-like system
- ์๋ฏธ: ์ ์กฑ์ ๊ธฐ๋ฐ ์์คํ
- ์ฉ๋ก:
- The blockchain network uses a quorum-like system to validate transactions.
- In a quorum-like system, actions can only proceed if enough members agree.
- The distributed database employs a quorum-like system for data consistency.
5. is dictated by
- ์๋ฏธ: โผ์ ์ํด ๊ฒฐ์ ๋๋ค, โผ์ ์ํด ์ง๋ฐฐ๋๋ค
- ์ฉ๋ก:
- The schedule is dictated by the manager.
- The market price is dictated by supply and demand.
- Their behavior is dictated by cultural traditions.
6. deems to be causally unrelated
- ์๋ฏธ: ์ธ๊ณผ์ ์ผ๋ก ๊ด๋ จ์ด ์๋ค๊ณ ์ฌ๊ธฐ๋ค
- ์ฉ๋ก:
- The researcher deems the two events to be causally unrelated.
- The court deems the injury to be causally unrelated to the accident.
- The scientist deems the fluctuations to be causally unrelated to external factors.
7. superseding
- ์๋ฏธ: ๋์ฒดํ๋, ๊ต์ฒดํ๋
- ์ฉ๋ก:
- New technology is superseding traditional methods.
- The policy is superseding the old regulations.
- A newer version of the software is superseding the outdated one.
8. hinted handoff
- ์๋ฏธ: ํํธ๋ ์ธ๊ณ, ์์ ๋ ์์ ์ธ๊ณ (์ฃผ๋ก ๋ถ์ฐ ์์คํ ์์ ์ฌ์ฉ)
- ์ฉ๋ก:
- Cassandra uses a hinted handoff mechanism to ensure data availability when a node is down.
- During a network partition, hinted handoff helps maintain system consistency.
- After recovery, the server processes the hinted handoff to synchronize the missed updates.
9. imperative
- ์๋ฏธ: ํ์์ ์ธ, ๊ธด๊ธํ / (๋ช ์ฌ) ๋ช ๋ น
- ์ฉ๋ก:
- It is imperative to act quickly in an emergency.
- Honesty is imperative for building trust.
- The general gave an imperative to retreat immediately.
10. churn
- ์๋ฏธ: ์ดํ, ๋ณ๋, ํ์ ๋ค
- ์ฉ๋ก:
- The company is trying to reduce customer churn.
- High employee churn can hurt a company's performance.
- The waves churn the ocean during the storm.
11. transient
- ์๋ฏธ: ์ผ์์ ์ธ, ์๊ฐ์ ์ธ, ์ ๊น ๋จธ๋ฌด๋ฅด๋
- ์ฉ๋ก:
- The storm caused a transient power outage.
- Happiness is often transient in nature.
- The hotel mainly accommodates transient guests.
12. anti-entropy protocol
- ์๋ฏธ: ๋ฌด์ง์ ๋ณต๊ตฌ ํ๋กํ ์ฝ (๋ถ์ฐ ์์คํ ์์ ๋ฐ์ดํฐ ์ผ๊ด์ฑ ์ ์ง ๋ฐฉ๋ฒ)
- ์ฉ๋ก:
- The database uses an anti-entropy protocol to synchronize replicas.
- An anti-entropy protocol helps maintain consistency even when nodes fail.
- Gossip-based systems often implement an anti-entropy protocol to repair inconsistencies.
13. Merkle tree
- ์๋ฏธ: ๋จธํด ํธ๋ฆฌ (ํด์ ํธ๋ฆฌ)
- ์ค๋ช : ๋ฐ์ดํฐ ๋ฌด๊ฒฐ์ฑ์ ๊ฒ์ฆํ๊ธฐ ์ํด ๋ฐ์ดํฐ๋ฅผ ํด์๋ก ๋ฌถ์ด ํธ๋ฆฌ ํํ๋ก ๊ด๋ฆฌํ๋ ๊ตฌ์กฐ. ๋ธ๋ก์ฒด์ธ์์ ์ฌ์ฉ.
- ์ฉ๋ก:
- Bitcoin uses a Merkle tree to efficiently verify transactions.
- A Merkle tree helps detect data corruption in distributed storage systems.
- Each block in the blockchain contains a Merkle tree summarizing its transactions.
14. tree traversal scheme
- ์๋ฏธ: ํธ๋ฆฌ ์ํ ๋ฐฉ์, ํธ๋ฆฌ ํ์ ๋ฐฉ๋ฒ
- ์ฃผ์ ๋ฐฉ์: Pre-order, In-order, Post-order, Level-order
- ์ฉ๋ก:
- The algorithm defines a tree traversal scheme for visiting all nodes.
- Choosing the right tree traversal scheme is crucial for optimizing performance.
- In a binary search tree, in-order tree traversal schemes are often used to retrieve sorted data.
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