Google App Engine Cron Service allows you to configure regularly scheduled tasks that operate at defined times or regular intervals. Which of the following are correct schedule formats?

When programming your app to search for atom data, what will it search for?

What kind of environment would a Go application be tested in?

Users API allow users to grant a third party or application limited permission to access your app on his or her behalf without sharing credentials using the OAuth protocol

If you want to develop your app using Java, what is necessary before starting?

When coding the users API with Go, why would a programmer include an opaque value?