Which technology enables networks to use one set of IP addresses for internal traffic and a second set for external traffic?
A. NAT
B. DHCP
C. IPSec
D. VLANs
Answer: A
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Which of the following statements is false?
a) The HasValue property returns true if a nullable-type variable contains a value; otherwise, it returns false. b) The Value property returns the nullable-type variable’s underlying value. c) The null coalescing operator (??) has two operands. If the left operand is not null, the entire ?? expression evaluates to the left operand’s value; otherwise, it evaluates to the right operand’s value. d) All of the above statements are true.
The facts that a function assumes to be true of the arguments that it receives are called __________.
a. function input validations b. local variables c. postconditions d. preconditions e. none of the above
____ storage services such as Microsoft SkyDrive offer remote storage space on an internet-based server.
A. Sky B. Data backup C. Cloud D. Space usage
Many organizations use relational databases for payroll, accounts receivable, accounts payable, general ledger, inventory, order entry, invoicing, and other business-related functions.
Answer the following statement true (T) or false (F)