Computer A (with IP address 10.0.10.230) and computer B (with IP address 10.0.12.14) are connected to the same workgroup switch and are within the same broadcast LAN. When computer A needs to communicate with computer B, how does it determine that no routing is required

Jenny needs to record the names of 30 students, write down the subjects they studied, and note their grades in each subject after the midsemester exams and the end-of-semester exams. she divides the midsemester and end-of-semester information into two separate worksheets, sheet 1 and sheet 2. how will she rename the two worksheets?