The default implementation of hashCode in Java returns
A) a value determined from the class type of the object
B) a value derived from the memory address of the object
C) a value determined from the values of the fields in the object
D) None of the above
B) a value derived from the memory address of the object
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Which of these remarks about formal parameters is correct?
a) A formal parameter is a kind of place holder that is filled with the argument at the time of call to the function. b) A call-by-value formal parameter is a global variable that is initialized to the value set just before the function is called. c) A call-by-reference formal parameter is modeled on a substitution mechanism. The argument should be an expression, not a variable, since there is never a need to assign such a variable. d) The & (ampersand) character is used to indicate call-by-reference. This is done by placing the & after the type name which is followed by the parameter name in the definition of the parameter in the function header. e) The argument corresponding to a call-by-value parameter cannot be changed by anything that happens in the function call.
Which of the following is an example of a submacro within a macro?
A. OnClick.OpenCustomerTable B. frmInvoice.OnClose C. tblBilling.ListCustomer D. mcrLatePayment.OpenBillingTable
If you mix two complementary colors, you will get _____________ .
a. a neutral color b. very bright colors c. no color at all d. none of the above
A small business owner is setting up a SOHO office. The business owner needs one device that will allow for Internet access, trunk VLANs, translate multiple private IP addresses into public IP addresses, and filter packets. Which of the following network devices will allow for all functions?
A. A VPN concentrator B. A switch C. A router D. A firewall