Answer:
True.
Explanation:
In the code given in the question we have an abstract class A.Then we have a class B which inherits the class A it is also an example of single inheritance.
Line A c; creates a reference of A type.
Line c=new B(); states that the reference of A type will refer to an object of class B.
Hence we conclude that the answer is True.
Answer:
a. Data flow diagrams and flowcharts are difficult to prepare and revise using software packages.
Explanation:
A data flow diagram is a graphical description of the source and destination of data that shows how data flow within an organization.
Documentation tools are used extensively in the systems development process.
Data flow diagrams and flowcharts are the two most frequently used systems development documentation tools. Also, documentation tools save an organization both time and money.
The answer is Insert control B
Answer: Ask a member of the Enterprise Admins group to authorize the server.
Explanation:
From the information given, we are informed that Rachel installed a new server running Windows Server 2016 on the new subnet and configure it as a DHCP server but then realizes that the DHCP server service has started, but that the server does not respond to DHCP lease requests.
In this case, the reason for this can be attributed to the fact that the server hasn't been authorized, therefore, she can ask a member of the Enterprise Admins group to authorize the server.
