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Download "ER Diagrams Symbols Learning" App (Android & iOS): In an E-R diagram, identifying relationship sets linked to weak entity sets, are represented by; MCQ with answers: dashed lines, diamonds, double diamonds, and double lines. Learn Database Design and ER Model Questions and Answers, Apple Book to download free chapter to strengthen system knowledge.

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MCQ 1151: In an E-R diagram, identifying relationship sets linked to weak entity sets, are represented by:

  1. Diamonds
  2. Dashed lines
  3. Double Lines
  4. Double diamonds

MCQ 1152: Oracle Database acquires a DDL lock on behalf of?

  1. Explicit action
  2. Transaction
  3. Query
  4. Retrieval

MCQ 1153: The Open Database Connectivity (ODBC) standard to use with the C language is a commonly used:

  1. Application process interface
  2. Adapter process interface
  3. Application program interface
  4. Adapter program interface

MCQ 1154: The second parameter to getConnection is a database:

  1. URL
  2. User identifier
  3. Password
  4. Machine address

MCQ 1155: A trigger can be dropped, which removes it:

  1. Temporarily
  2. Permanently
  3. For specific actions
  4. For limited time

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