Which of the following statements is true? Select the correct answer.

Question

Options

• AWS-ReliableMessaging standardizes reliability levels associated with databases required to
• BWS-ReliableMessaging standardizes the issuance and delivery of positive and negative
• CWS-ReliableMessaging standardizes SOAP headers related to atomic transactions with rollback
• DWS-ReliableMessaging standardizes the expression of service composition logic, but only for

• B
  90% (28)
• C
  6% (2)
• D
  3% (1)

Explanation

WS-ReliableMessaging (WS-RM) is a SOAP-based protocol standard designed to guarantee message delivery between distributed systems, even in the presence of network or software failures. Option B is correct because WS-RM specifically defines the framework for issuing and delivering acknowledgments - positive (confirming successful receipt) and negative (signaling delivery failure) - ensuring messages are delivered exactly once and in order.

Option A is wrong because WS-RM has no involvement with databases; database reliability and transaction isolation levels fall under specifications like WS-AtomicTransaction or database-specific standards. Option C is wrong because atomic transactions with rollback behavior are governed by WS-AtomicTransaction (WS-AT) and WS-BusinessActivity, not WS-RM. Option D is wrong because service composition logic - orchestrating multiple services into a workflow - belongs to WS-BPEL (Business Process Execution Language), which is an entirely separate specification.

Memory tip: Think of WS-RM like certified mail - it exists solely to confirm whether your "letter" (SOAP message) was delivered (positive acknowledgment) or failed (negative acknowledgment). If it's about how messages get through reliably, that's WS-RM; everything else (transactions, databases, orchestration) belongs elsewhere.

No community discussion yet for this question.