Answer:
a. virtual reality
b. Master Boot Records
c. Primary function of a router
d. zoom
Explanation:
 
        
                    
             
        
        
        
Answer:
The Security Account Manager
Explanation:
The Security Account Manager (SAM), This is a database file found in Windows Operating Systems.... Windows XP, Windows Vista, Windows 7, 8.1 and 10 that stores users' passwords. It can be used to authenticate local and remote users. It is  an important and vital component of how Windows stores passwords locally on the computer.
 
        
             
        
        
        
 a hard copy stores data and information in the form of physical files it may be images text photographs and more a soft copy data and information in the form of virtual file saved on a computer or a drive you can preserve a hard copy for two long because its day subjected to wear and tear
 
        
                    
             
        
        
        
Answer:
Handle the exception in a catch block or throw the exception to the method that called this method.
Explanation:
The try and catch statements occur in pairs. The try statement allows the user to define a block of code to be tested for errors while it is being executed.
The catch statement allows the user to define a block of code to be executed, if an error occurs in the try block.
If an exception is checked by a method, the method either handles the exception in a catch block or throw the exception to the method calling it.
 
        
                    
             
        
        
        
Cloud computing is more complex than traditional approach due to the following reasons.
Explanation:
1.Cost Savings and Total Cost of Ownership. When you move to cloud computing you tend to save money in several ways in comparison to traditional IT, including the reduction of in-house equipment and infrastructure.
2.Dissatisfaction in Traditional IT. Many companies are frustrated with the negatives that come with traditional IT, such as poor data backup, managing and maintaining your own hardware, and lack of disaster recovery options. 
3.Time to Value and Ease of Implementation. Since you don’t have to spend time configuring hardware, maintain systems, and patching software, you can invest your resources elsewhere.
4.Access to Emerging Technology. Much like a car, the minute you purchase on-premise hardware and software, it immediately starts to age. You can access the latest and greatest innovations with a cloud provider who has more purchasing power and stays up-to-date with available solutions. Also, as new innovations are released, they become less likely to integrate with legacy solutions that are often inflexible. Instead, cloud-first development is coming to the forefront.
5.Using Hybrid to Optimize your Operations. Some organizations take the use of the cloud even further by using multiple clouds simultaneously, thus giving them even more agility. Workloads are placed where they perform best, and where costs are most efficient.