15 Messaging Models questions from the Message Queues bank, written for Indian campus drives and tech interviews. Every question has a verified answer and an AI-tutor explanation on placd.
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A.a token attached to a request and echoed in its response so the sender can match the answer to the original message
B.a model where each message is delivered to exactly one of the competing consumers reading from the same destination
C.a two-way pattern where the sender includes a return address and waits for a correlated response from the receiver
D.distributing a single incoming message to multiple downstream destinations so several consumers process it in parallel
Answer + AI explanation with Pro
2. Which term means: "a model where each message is delivered to exactly one of the competing consumers reading from the same destination"?
Junior
A.Fan-out
B.Point-to-point queue
C.Publish-subscribe
D.Correlation identifier
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3. Which statement is correct?
Junior
A.Point-to-point queue — a model where each message is delivered to exactly one of the competing consumers reading from the same destination
B.Point-to-point queue — a model where a message is broadcast so that every subscriber to a topic receives its own copy
C.Point-to-point queue — a two-way pattern where the sender includes a return address and waits for a correlated response from the receiver
D.Point-to-point queue — a token attached to a request and echoed in its response so the sender can match the answer to the original message
Answer + AI explanation with Pro
4. What is Publish-subscribe?
Junior
A.a token attached to a request and echoed in its response so the sender can match the answer to the original message
B.a model where each message is delivered to exactly one of the competing consumers reading from the same destination
C.distributing a single incoming message to multiple downstream destinations so several consumers process it in parallel
D.a model where a message is broadcast so that every subscriber to a topic receives its own copy
Answer + AI explanation with Pro
5. Which term means: "a model where a message is broadcast so that every subscriber to a topic receives its own copy"?
Junior
A.Correlation identifier
B.Point-to-point queue
C.Request-reply
D.Publish-subscribe
Answer + AI explanation with Pro
6. Which statement is correct?
Junior
A.Publish-subscribe — a token attached to a request and echoed in its response so the sender can match the answer to the original message
B.Publish-subscribe — distributing a single incoming message to multiple downstream destinations so several consumers process it in parallel
C.Publish-subscribe — a model where a message is broadcast so that every subscriber to a topic receives its own copy
D.Publish-subscribe — a two-way pattern where the sender includes a return address and waits for a correlated response from the receiver
Answer + AI explanation with Pro
7. What is Fan-out?
Mid
A.a two-way pattern where the sender includes a return address and waits for a correlated response from the receiver
B.a model where each message is delivered to exactly one of the competing consumers reading from the same destination
C.a token attached to a request and echoed in its response so the sender can match the answer to the original message
D.distributing a single incoming message to multiple downstream destinations so several consumers process it in parallel
Answer + AI explanation with Pro
8. Which term means: "distributing a single incoming message to multiple downstream destinations so several consumers process it in parallel"?
Mid
A.Correlation identifier
B.Fan-out
C.Request-reply
D.Point-to-point queue
Answer + AI explanation with Pro
9. Which statement is correct?
Mid
A.Fan-out — a model where each message is delivered to exactly one of the competing consumers reading from the same destination
B.Fan-out — a model where a message is broadcast so that every subscriber to a topic receives its own copy
C.Fan-out — a two-way pattern where the sender includes a return address and waits for a correlated response from the receiver
D.Fan-out — distributing a single incoming message to multiple downstream destinations so several consumers process it in parallel
Answer + AI explanation with Pro
10. What is Request-reply?
Mid
A.a token attached to a request and echoed in its response so the sender can match the answer to the original message
B.distributing a single incoming message to multiple downstream destinations so several consumers process it in parallel
C.a two-way pattern where the sender includes a return address and waits for a correlated response from the receiver
D.a model where a message is broadcast so that every subscriber to a topic receives its own copy
Answer + AI explanation with Pro
11. Which term means: "a two-way pattern where the sender includes a return address and waits for a correlated response from the receiver"?
Mid
A.Request-reply
B.Fan-out
C.Correlation identifier
D.Publish-subscribe
Answer + AI explanation with Pro
12. Which statement is correct?
Mid
A.Request-reply — a model where a message is broadcast so that every subscriber to a topic receives its own copy
B.Request-reply — distributing a single incoming message to multiple downstream destinations so several consumers process it in parallel
C.Request-reply — a two-way pattern where the sender includes a return address and waits for a correlated response from the receiver
D.Request-reply — a token attached to a request and echoed in its response so the sender can match the answer to the original message
Answer + AI explanation with Pro
13. What is Correlation identifier?
Senior
A.a model where each message is delivered to exactly one of the competing consumers reading from the same destination
B.a token attached to a request and echoed in its response so the sender can match the answer to the original message
C.a model where a message is broadcast so that every subscriber to a topic receives its own copy
D.a two-way pattern where the sender includes a return address and waits for a correlated response from the receiver
Answer + AI explanation with Pro
14. Which term means: "a token attached to a request and echoed in its response so the sender can match the answer to the original message"?
Senior
A.Correlation identifier
B.Publish-subscribe
C.Point-to-point queue
D.Fan-out
Answer + AI explanation with Pro
15. Which statement is correct?
Senior
A.Correlation identifier — distributing a single incoming message to multiple downstream destinations so several consumers process it in parallel
B.Correlation identifier — a token attached to a request and echoed in its response so the sender can match the answer to the original message
C.Correlation identifier — a model where a message is broadcast so that every subscriber to a topic receives its own copy
D.Correlation identifier — a model where each message is delivered to exactly one of the competing consumers reading from the same destination
Answer + AI explanation with Pro
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