You may have noticed that the dhcp request that phil-f¢s imac sends is a broadcast packet, sent to ethernet address: ff: ff: ff: ff: ff: ff, and ip address: 255.255.255.255. but when his imac sends the dhcp request it has already selected an ip address and it knows which server the selected offer came from. why does it send the request as a broadcast packet? a. this way all dhcp servers on the network will get a copy of it, so they can withdraw other offers that were not selected. b. all dhcp servers must get a copy of the request so they can update their mappingsc. dhcp is a distributed protocol and the broadcast packets ensures that servers are synchronizedd. there is a mistake in the implementation; the dhcp request should be a unicast packet.

In which of the following ways can using test-taking tips you? a. you can focus on the information that you need to study. b. you will see the answers to the test. c. you will study more. d. you will be less organized.

Between 1932 and 1938, chester carlson developed a process that enabled a "picture" of a document to be taken and then have it reproduced on another

8. create an abstract student class for parker university. the class contains fields for student id number, last name, and annual tuition. include a constructor that requires parameters for the id number and name. include get and set methods for each field; the settuition() method is abstract. create three student subclasses named undergraduatestudent, graduatestudent, and studentatlarge, each with a unique settuition() method. tuition for an undergraduatestudent is $4,000 per semester, tuition for a graduatestudent is $6,000 per semester, and tuition for a studentatlarge is $2,000 per semester. write an application that creates an array of at least six objects to demonstrate how the methods work for objects for each student type. save the files as student.java, undergraduatestudent.java, graduatestudent.java, studentatlarge.java, and studentdemo.java.