WCF Set 2

1.

In WCF, which of the following code snippets is used to create a service class?

[OperationBehavior(TransactionScopeRequired = true)] public bool Debit(int accountId, double amount) { // Debit logic goes here }

[OperationBehavior(TransactionScopeRequired = false)] public bool Debit(int accountId, double amount) { // Debit logic goes here }

[OperationBehavior(TransactionScopeRequired = null)] public bool Debit(int accountId, double amount) { // Debit logic goes here }

None of these

2.

In WCF, which of the following codes is used to configure a per-call service?

[ServiceContract] interface IMyContract {...} [ServiceBehavior (InstanceContextMode = InstanceContextMode.PerCall)] class MyService : IMyContract {...}

[ServiceContract] interface IMyContract {...} [ServiceBehavior (InstanceMode = InstanceMode.PerCall)] class MyService : IMyContract {...}

[ServiceContract] interface IMyContract {...} [ServiceBehavior (InstanceContextMode = InstanceContextMode.PerCall)] {...}

None of these

3.

In WCF, which of the following codes is used to enable the transaction service?

[OperationContract] [TransactionFlow(TransactionFlowOption.Allowed)] bool Debit(int accountId, double amount);

[OperationContract] [TransactionFlow(TransactionFlowOption.NotAllowed)] bool Debit(int accountId, double amount);

[OperationContract] bool Debit(int accountId, double amount);

[OperationContract] bool Debit(int accountId)

4.

In WCF, which of the following functions is called within a transaction?

TransactionFlowOption.Mandatory TransactionFlowOption.Allowed TransactionFlowOption.NotAllowed TransactionFlow.NotAllowed

5.

In WCF, which of the following communications is not used in a fault contract?

Request or Response One-way Duplex Response

6.

In WCF, which of these requires CallbackContract?

Request-Response Oneway Duplex None of these

7.

In WCF, which of these is a mechanism for transmitting large binary attachments with SOAP messages as raw bytes, allowing for smaller messages?

MTOM MEP MTOP TOP

8.

In WCF, which of the following attributes provides Callback service?

DataContract ServiceContract OperationContract None of these

9.

In WCF, what is the correct default value for maxConcurrentCalls?

16 12 14 15

10.

In WCF, which of these supports reliability?

BasicHttpBinding NetTcpBinding NetMsmqBinding NetNamedPipeBinding

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WCF Set 2

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