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20250429 AWS DynamoDB ๋…ผ๋ฌธ ๋‹จ์–ด/๋ฌธ์žฅ ์ •๋ฆฌ

Chann._.y 2025. 4. 29. 23:34
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๐Ÿ“š ๋‹จ์–ด & ๋ฌธ์žฅ ์ •๋ฆฌ

1. is eligible to

  • ์˜๋ฏธ: โˆผํ•  ์ž๊ฒฉ์ด ์žˆ๋‹ค
  • ์šฉ๋ก€:
    1. She is eligible to apply for the scholarship.
    2. He is eligible to vote in the upcoming election.
    3. Only members are eligible to receive the benefits.

2. for sake of

  • ์˜๋ฏธ: โˆผ์„ ์œ„ํ•ด์„œ
  • ์šฉ๋ก€:
    1. She gave up her career for the sake of her family.
    2. Let's try to stay calm for the sake of the children.
    3. He studied hard for the sake of his future.

3. yields a system

  • ์˜๋ฏธ: ํ•˜๋‚˜์˜ ์‹œ์Šคํ…œ์„ ์‚ฐ์ถœํ•˜๋‹ค, ์‹œ์Šคํ…œ์„ ๋งŒ๋“ค์–ด๋‚ด๋‹ค
  • ์šฉ๋ก€:
    1. Combining these equations yields a system that can be solved easily.
    2. This process yields a system of linear inequalities.
    3. The experiment yields a system capable of autonomous movement.

4. quorum-like system

  • ์˜๋ฏธ: ์ •์กฑ์ˆ˜ ๊ธฐ๋ฐ˜ ์‹œ์Šคํ…œ
  • ์šฉ๋ก€:
    1. The blockchain network uses a quorum-like system to validate transactions.
    2. In a quorum-like system, actions can only proceed if enough members agree.
    3. The distributed database employs a quorum-like system for data consistency.

5. is dictated by

  • ์˜๋ฏธ: โˆผ์— ์˜ํ•ด ๊ฒฐ์ •๋˜๋‹ค, โˆผ์— ์˜ํ•ด ์ง€๋ฐฐ๋˜๋‹ค
  • ์šฉ๋ก€:
    1. The schedule is dictated by the manager.
    2. The market price is dictated by supply and demand.
    3. Their behavior is dictated by cultural traditions.

6. deems to be causally unrelated

  • ์˜๋ฏธ: ์ธ๊ณผ์ ์œผ๋กœ ๊ด€๋ จ์ด ์—†๋‹ค๊ณ  ์—ฌ๊ธฐ๋‹ค
  • ์šฉ๋ก€:
    1. The researcher deems the two events to be causally unrelated.
    2. The court deems the injury to be causally unrelated to the accident.
    3. The scientist deems the fluctuations to be causally unrelated to external factors.

7. superseding

  • ์˜๋ฏธ: ๋Œ€์ฒดํ•˜๋Š”, ๊ต์ฒดํ•˜๋Š”
  • ์šฉ๋ก€:
    1. New technology is superseding traditional methods.
    2. The policy is superseding the old regulations.
    3. A newer version of the software is superseding the outdated one.

8. hinted handoff

  • ์˜๋ฏธ: ํžŒํŠธ๋œ ์ธ๊ณ„, ์˜ˆ์ •๋œ ์ž„์‹œ ์ธ๊ณ„ (์ฃผ๋กœ ๋ถ„์‚ฐ ์‹œ์Šคํ…œ์—์„œ ์‚ฌ์šฉ)
  • ์šฉ๋ก€:
    1. Cassandra uses a hinted handoff mechanism to ensure data availability when a node is down.
    2. During a network partition, hinted handoff helps maintain system consistency.
    3. After recovery, the server processes the hinted handoff to synchronize the missed updates.

9. imperative

  • ์˜๋ฏธ: ํ•„์ˆ˜์ ์ธ, ๊ธด๊ธ‰ํ•œ / (๋ช…์‚ฌ) ๋ช…๋ น
  • ์šฉ๋ก€:
    1. It is imperative to act quickly in an emergency.
    2. Honesty is imperative for building trust.
    3. The general gave an imperative to retreat immediately.

10. churn

  • ์˜๋ฏธ: ์ดํƒˆ, ๋ณ€๋™, ํœ˜์ “๋‹ค
  • ์šฉ๋ก€:
    1. The company is trying to reduce customer churn.
    2. High employee churn can hurt a company's performance.
    3. The waves churn the ocean during the storm.

11. transient

  • ์˜๋ฏธ: ์ผ์‹œ์ ์ธ, ์ˆœ๊ฐ„์ ์ธ, ์ž ๊น ๋จธ๋ฌด๋ฅด๋Š”
  • ์šฉ๋ก€:
    1. The storm caused a transient power outage.
    2. Happiness is often transient in nature.
    3. The hotel mainly accommodates transient guests.

12. anti-entropy protocol

  • ์˜๋ฏธ: ๋ฌด์งˆ์„œ ๋ณต๊ตฌ ํ”„๋กœํ† ์ฝœ (๋ถ„์‚ฐ ์‹œ์Šคํ…œ์—์„œ ๋ฐ์ดํ„ฐ ์ผ๊ด€์„ฑ ์œ ์ง€ ๋ฐฉ๋ฒ•)
  • ์šฉ๋ก€:
    1. The database uses an anti-entropy protocol to synchronize replicas.
    2. An anti-entropy protocol helps maintain consistency even when nodes fail.
    3. Gossip-based systems often implement an anti-entropy protocol to repair inconsistencies.

13. Merkle tree

  • ์˜๋ฏธ: ๋จธํด ํŠธ๋ฆฌ (ํ•ด์‹œ ํŠธ๋ฆฌ)
  • ์„ค๋ช…: ๋ฐ์ดํ„ฐ ๋ฌด๊ฒฐ์„ฑ์„ ๊ฒ€์ฆํ•˜๊ธฐ ์œ„ํ•ด ๋ฐ์ดํ„ฐ๋ฅผ ํ•ด์‹œ๋กœ ๋ฌถ์–ด ํŠธ๋ฆฌ ํ˜•ํƒœ๋กœ ๊ด€๋ฆฌํ•˜๋Š” ๊ตฌ์กฐ. ๋ธ”๋ก์ฒด์ธ์—์„œ ์‚ฌ์šฉ.
  • ์šฉ๋ก€:
    1. Bitcoin uses a Merkle tree to efficiently verify transactions.
    2. A Merkle tree helps detect data corruption in distributed storage systems.
    3. Each block in the blockchain contains a Merkle tree summarizing its transactions.

14. tree traversal scheme

  • ์˜๋ฏธ: ํŠธ๋ฆฌ ์ˆœํšŒ ๋ฐฉ์‹, ํŠธ๋ฆฌ ํƒ์ƒ‰ ๋ฐฉ๋ฒ•
  • ์ฃผ์š” ๋ฐฉ์‹: Pre-order, In-order, Post-order, Level-order
  • ์šฉ๋ก€:
    1. The algorithm defines a tree traversal scheme for visiting all nodes.
    2. Choosing the right tree traversal scheme is crucial for optimizing performance.
    3. In a binary search tree, in-order tree traversal schemes are often used to retrieve sorted data.
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