In the dental industry, light-activated adhesives have been used for decades to help adhere braces to teeth as well as being used in other dental procedures. These adhesives are one-part translucent polymers that cure and harden when exposed to specific light spectrum. Many of these took up to 30 seconds to cure. New technology brings LED blue light curing which uses blue LED with UV light to cure and harden a light-activated adhesive in 3-5 seconds. Which result below would NOT be an advantage of this new technology?<u> A)There is a higher up-front expense.</u> B)Could be used in other areas such as sealing cracked pipes. C)No filters or cooling fan required due to quick curing and low heat emission. D)There is a major time savings when using the faster high–intensity curing lights.
Answer: (D) Database design follows the twelve principles proffered by Dr. Edgar F. Codd
Explanation:
The relational database is basically based on the relational model of the data which is proposed by the Dr Edger F. codd and he mainly introduced the twelve basics principle of the database designing in the database system. He also contributed various valuable principle in the computer science.
The twelve principle are:
- The first rule of the relational database is the information rule as it represented all data or information
- Independence of the integrity
- Viewing various updating rule
- Logically treatment of various NULL value
- Independence of the physical database
- Distribution in-dependency
- Various delete, insert and update rules
- The overall logical description of the database are basically stored in the database directory
- There is no subversion rule
- There is guarantee accessing rule
- Proper rule for data language
- The relational database level actions
Off the top of my head I know there was a lot of researching by means of books. Books were where you went to find information. So nowadays you can find everything with a search engine whereas you had to go to the bookstore back then.
Answer:
select the save option in the file menu
Explanation:I know bc i am great with computers
Answer:
Trunk
Explanation:
Gigabit switches are meant for expanding the ethernet. Through this, you can add more PC to the ethernet. A managed switch is meant for providing more tailored features and tools to the users. The unmanaged switch only allows the two devices on the network to communicate with each other, as it just provides the connectivity. And for setting up the VLANs on it, we need the Trunk Switch. And hence, the correct option is Trunk.
