Request-Reply Protocol Quiz
University
•10 Qs
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Request-Reply Protocol Quiz
Quiz
•
Computers
•
University
•
Practice Problem
•
Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main characteristic of synchronous request-reply communication?
Server may be executing an operation more than once for the same request
Messages are not guaranteed to be delivered in sender order
Clients are blocked until the server performs the requested operation
Clients can afford to retrieve replies later
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method is used by clients to invoke remote operations?
doOperation
getRequest and sendReply
sendReply
getRequest
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the getRequest() method do in server process?
Generates a requestId for each request message
Sends the reply message to the client
Acquires a client request via the server port
Sends a request message to the remote object and returns the reply
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using a timeout in the doOperation method?
To acquire a client request via the server port
To send the request message repeatedly until it gets a reply
To discard duplicate request messages
To indicate to the client that the doOperation has failed
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the Request (R) Protocol used for?
When the called procedure has nothing to return and the client requires no confirmation
To queue separate RPC requests in a transmission buffer on the client side
To send the reply message to the client
To acquire a client request via the server port
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main characteristic of the Request/Reply (RR) Protocol?
It is based on the request-reply protocol
It is used to queue separate RPC requests in a transmission buffer on the client side
It is used when the called procedure has nothing to return and the client requires no confirmation
It is used to acquire a client request via the server port
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the Request/Reply/Acknowledge-Reply (RRA) Protocol?
To discard duplicate request messages
To acquire a client request via the server port
To send the request message repeatedly until it gets a reply
To serve as an ack for the request msg
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