Which of the following is incorrect regarding Google App Engine Queries and Indexes?

Suppose you retrieves the log data for an application, running on the App Engine by using severity as the option. What value will be retrieve for WARNING log message?

Which statement is incorrect with regard to Google App Engine?

The Datastore maintains Statistics about the data stored for an application, such as how many entities there are of a given kind. Which additional properties are supported by an entity of the kind __Stat_PropertyName_Kind__?

Which command line arguments are not supported by the development server?

Which features of the JDO interface are not supported by Google App Engine?

What is the shortest and longest duration you can set cookie expiration?

Which one feature from the given Communication features does not exist in GAE?

What is the safety measure to prevent unintended deletion of apps?

True or false? Generally available (GA) features have many sections. For instance section "Data storage, retrieval, and search" covers both PHP and Python environments for 100%.

Python 2.7 will use multi-threading technology. Why is this important for Google App Engine?