Select the correct answer. Sandra is configuring a packet filtering firewall. Which is the best method to do so?
OA.
isolating the packets for whom no instructions are found and sending a notification to the user
B.
allowing all packets to pass
OC.
blocking only those packets that the firewall considers unsafe
D.
blocking all the packets

Ineed a good science fair name i’m doing a homemade water filter and i have no idea what the title should be plz

Consider the following code snippet: #ifndef cashregister_h#define cashregister_hconst double max_balance = 6000000.0; class cashregister{public: cashregister(); cashregister(double new_balance); void set_balance(double new_balance); double get_balance() const; private: double balance[12]; }; double get_monthly_balance(cashregister bk, int month); #endifwhich of the following is correct? a)the header file is correct as given.b)the definition of max_balance should be removed since header files should not contain constants.c)the definition of cashregister should be removed since header files should not contain class definitions.d)the body of the get_monthly_balance function should be added to the header file.

You are consulting for a beverage distributor who is interested in determining the benefits it could achieve from implementing new information systems. what will you advise as the first step?