Answer:
yes
Explanation:
If it is guranteed the key is only known to Alice and Bob and there is no risk of man in the middle attack or channel spoofing so we can achieve data origin authentication
Answer:
Free/busy settings can be enabled.
One extra time zone can be created.
Display and theme settings can be changed.
Options are accessed through the Backstage view.
Explanation:
Just took it
Answer:
public: virtual void print()=0;
Explanation:
An abstract class contains a pure virtual function. Pure virtual class cannot be instantiated but it can be subclassed and the subclass can provide an implementation of the function.
A virtual function declaration in the class is preceded by the virtual keyword. For example, virtual void print();
A pure virtual function declaration is followed by '=0;'
public: virtual void print()=0;
