Answer: VLAN(Virtual local area network)
Explanation: VLAN(Virtual local area network) is the networking device that displays the flexible nature due to the logical connection of one or more LANs. VLAN is used for the purpose of the management, security, scaling etc.
VLAN also has the ability to provide the segmentation in the network by dividing the physical network into segments and making logical network. Router is the source for maintaining the communication in the VLAN.
Thus according to the requirement mentioned in the question ,VLAN is the network device that should be used.
 
        
             
        
        
        
Answer:
b. adds to Iterator the ability to move backwards in the collection
Explanation:
In Java programming, the ListIterator interface adds to Iterator the ability to be bidirectional i.e move backwards and forward in the collection and it is a sub-interface of the Iterator interface.
The ListIterator interface makes it possible to modify any list during iteration and determine its position in the list. 
 
        
             
        
        
        
Answer:
twainQuotes = ['I have never let my schooling interfere with my education.', 'Get your facts first, and then you can distort them as much as you please.', "If you tell the truth, you don't have to remember anything.", 'The secret of getting ahead is getting started.', "Age is an issue of mind over matter. If you don't mind, it doesn't matter. "]
print(twainQuotes)
twainQuotes.sort()
print(twainQuotes)
twainQuotes.insert(1,'Courage is resistance to fear, mastery of fear, not absence of fear.' )
print(twainQuotes)
Explanation:
ok
 
        
             
        
        
        
Answer:
Code
Explanation:
The code is instructions that you can write yourself or download from online
 
        
                    
             
        
        
        
D. Field data because that it a report of what happened over the week that a manager can reflect on for possible changes.