Microsoft
98-361 · Question #284
98-361 Question #284: Real Exam Question with Answer & Explanation
The correct answer is C. The client project does not contain a reference to the System.Collection namespace.. See the full explanation below for the reasoning.
Question
You are invoking a Web service method that returns an ArrayList object. The client application is written is C#, whereas the Web service is written in Visual Basic. The Web service is outside your corporate firewall. You receive an "object not found" error when you call the method that returns the ArrayList object but can call other methods successfully from the same Web service. What could be the problem?
Options
- AThe client and the Web service are not written in the same programming language.
- BThe firewall is blocking all SOAP calls.
- CThe client project does not contain a reference to the System.Collection namespace.
- DThe ArrayList class cannot be serialized.
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