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
Carol must use any software which supports retail management. A software which he choose should be able to bill for the goods purchased, Handle the stock entries, maintains a reorder level, an alert system to order next set of goods, ability to find fast moving products, able to modify code on need, provide appropriate warning and error messages which are user-friendly etc. There are many such software in the market viz. “ShopKeep, Epos Now, Light speed Retail, Fattmerchant, Square for Retail”, etc.
Answer:
Operating core is the primary reason that organizations change their structure through downsizing, outsourcing, and offshoring as a means of improving their operating efficiency
Explanation:
- At the bottom of the organization is the operating core.
- These are the people that do the basic work of producing the products or delivering the services.
- In the simplest organizations, the operators are largely self-sufficient, coordinating through mutual adjustment.
- In those organizations, there is almost nothing but operating core.
Answer:
Yes, both of these segments (A and B) will be directed to the same socket at Host C .
Explanation:
Suppose both Host A and Host B each send a UDP segment to Host C with destination port number 6789, surely , both of these segments will be directed to the same socket at Host C .
Reason being that, the operating system will provide the process with the IP details to distinguish between the individual segments arriving at host C- for each of the segments (A and B) recieved at Host C.
