This is true. In some languages, constructors can be made private to restrict the ways in which objects can be created.
 
        
             
        
        
        
Answer:
C. Confidentiality
Explanation:
With confidentiality, a person who intercepts messages you intend to remain private cannot read them and thus increases your document protection 
 
        
             
        
        
        
Answer:
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Answer:
The account record comprises of Invoice roll up summary fields.
Explanation:
The possible reason that this change was not permitted was that the account record comprises of Invoice roll up summary fields.
Invoice roll up summary fields: A roll-up summary field computes values from associated records, for example those in a linked list. a person or someone ca design a roll-up summary field to show a value in a master record by building  the values of fields in a particular record. 
The detail record must be associated to the master through a master-detail relationship. for instance, you want to show the sum of invoice amounts for all linked custom object records in an account’s Invoices related list. you can show the whole or sum in a custom account field refereed to as Total Invoice Amount.
 
        
             
        
        
        
The answer is <span>Unified Communications.  </span><span>You step out of your office and miss a telephone call. when you sit at your desk you notice that the voicemail light is blinking on your phone, you have a new email, and you have a transcribed instant message on your computer screen in the form of an instant message. your organization has most likely adopted Unified Communications type of technology.  </span>