It isn't clear, or isn't properly written. When the cities are ranked by descending size, the "second largest" is the second one in the list. This question asks for more than one second largest city, which implies more than one way in which "largest" is measured, but this is not explained.
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Niladri14"What is the second largest city, with respect to size, in Malaysia?"with respect to size" does not add anything to "largest". It needs to say how size is measured -- though if no method is mentioned then population would normally be assumed.
GPYWhat is the second largest city in Malaysia by population?Actually, "second-largest city" is more strictly correct, though many people don't bother with the hyphen.