Answer:
Explanation:
Three limittaions of computer are:
It requires reqular power supply to operate .
It needs instructions to perform a task.
It cannot memorize and recall.
Answer:
2 values
Explanation:
boolean statements can only be True or False
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
Answer:
The values of existing data can be modified using the SQL ___Update_____ command, which can be used to change several column values at once.
Explanation:
However, if you are interested in modifying some columns, then you must specify the columns of interest by using Update (table name) Set column1, column2, etc., which assigns a new value for the columns that you want to update, with each column value separated by a comma. The SQL (Structured Query Language) Update command is used to update data of an existing database table.
Answer:
The answer to this question is "The main closet or telecommunications closet".
Explanation:
A multimedia terminal or multimedia terminal adapter (MTA) is also known as a Landline modem that operates just like a wireless router, but in terms of high-speed Internet, an MTA can provide Home Phone service only.
- In the case of a significant power failure, MTAs have only a backup battery that will fuel the MTA for many hours.
- This device is used to connect to a main or telecommunications closet.
