One way that computer networks help to protect data is by backing up the data.
Computer networks are normally formatted to automatically back up all of the data that is stored on them. This protects the data in case of any type of computer system failure.
Answer:
PNG
Explanation:
PNG files can shrink to incredibly small sizes - especially images that are simple colours, shapes, or text. This makes it the ideal image file type for Web graphics.
A 50-year-old African American man
<span>Hard disk drives
</span><span>RAM<span>Random access memory (RAM)
</span></span><span>External hard disks
<span>USB port
</span></span>CD and DVD drives
<span>Memory cards</span>
Answer: True
Explanation:
Subset sum problem and Knapsack problem can be solved using dynamic programming.
In case of Knapsack problem there is a set of weights associative with objects and a set of profits associated with each object and a total capacity of knapsack let say C. With the help of dynamic programming we try to include object's weight such that total profit is maximized without fragmenting any weight of objects and without exceeding the capacity of knapsack, it is also called as 0/1 knapsack problem.
Similar to knapsack problem, in subset sum problem there is set of items and a set of weights associated with the items and a capacity let say C, task is to choose the subset of items such that total sum of weights associated with items of subset is maximized without exceeding the total capacity.
On the basis of above statements we can say that subset sum problem is generalization of knapsack problem.
