____ are built-in, predefined methods that are part of each Alice object.
A. Primitive methods
B. Constructors
C. Instance methods
D. User-defined methods
Answer: A
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Which statement is false?
a. When a method call is made, the called method must know how to return to its caller, so the return address is pushed onto the program execution stack. b. Stacks support recursive method calls in the same manner as conventional, nonrecursive method calls. c. The program execution stack contains the space created for a method's global variables on each invocation of that method during a program's execution. d. When a method returns to its caller, the memory for that method's local variables is popped off the stack and those variables are no longer known to the program.
Public key systems
a. use the same key for sending and receiving data b. require users to exchange keys in advance c. use asymmetric keys d. can not be used to send digitally signed messages
Your company has decided that security is very important and wants to add a second security check when workers are logging in to their computers. The company issued key fobs to all the employees. The key fob generates a code for them to enter when logging in to the computer. ? What type of security is your company using?
A. Key fob B. Smart card C. Biometric lock D. Hardware token
Three-factor authentication consists of: _________, __________, and __________.
Fill in the blank(s) with the appropriate word(s).