1. False. Queues create a definitive interface, which decouples components from one another.
2. False. Any datatype can be placed into a queue.
3. No, omitting the underlying formatting allows more flexibility for the producers of items to be queued. If the data isn't tied to a specific format, the format can be modified without affecting the queue or the consumer of data coming out of the queue.
4. Possible answers include the following:
   • A queued item's lifetime doesn't need to be taken into consideration since a copy of it is made. 
   • The queued item's scope doesn't need to be taken into account if it is passed by value into the queue. 
   • If an item is passed by reference, a clear understanding of who owns the item is necessary, as well as who is responsible for freeing the resources associated with it.
5. Possible answers include the following:
   • Latency introduced by deep queues
   • Non-deterministic behavior caused by requests sitting in a queue instead of being immediately executed (or rejected)
   • Memory constraints