When you used JPA in this chapter, you interacted with an existing database via classes that the NetBeans IDE generated from the database’s schema. You used the NetBeans Entity Classes from Database... option to add to your project classes that represented the database tables. Together, these classes and the corresponding settings are known as a ________ unit.
a. perseverance
b. perpetual
c. sticky
d. persistence.
d. persistence.
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When using Java's built-in monitors, every object has a(n) ________ or a(n) ________ that the monitor ensures is held by a maximum of only one thread at any time.
a. monitor lock, intrinsic lock b. built-in lock, free lock c. mutual exlcusion lock, synchronization lock d. None of the above.
What Gestalt principles contribute to the organization of the window depicted in the following figure? Explain.
Routing protocols that enable routers to communicate beyond neighboring routers, allowing each router to independently map the network, are known as which type of protocols?
a. interior gateway protocols b. border gateway protocols c. distance vector protocols d. link-state protocols
A user reports their wireless 802.11g Internet connection is intermittently disrupted. Which of the following is the cause of the problem?
A. Infrared printer B. Cordless phone C. Cell phone D. Incandescent light