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Elena L [17]
2 years ago
11

What is the difference between referential and entity integrity

Computers and Technology
1 answer:
Lisa [10]2 years ago
3 0

Answer:

Explanation:

Referential integrity is the state in which all values of all foreign keys are valid. Referential integrity is based on entity integrity . Entity integrity requires that each entity have a unique key.

Hope this helped and have a good day

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What are the disadvantages of a server-based network? -lack of centralized network security - need for a network administrator -
tigry1 [53]

Answer:

The server-based network has some disadvantages such as hardware-accelerated which is affordable. Effective operating system with a network. Requires a dedicated system administrator.

Explanation:

  • When one of the databases drops south all the people are being affected and the whole network can even be downgraded.
  • Costlier to set up and maintain.
  • Expensive: - The expensive server hardware equipment, database software platforms, and network installation can require significant source host and system administrator.
  • Administrating:-  Appears to require continual servicing by the system administrator and admin must behave with the relevant skills to preserve also that network infrastructure tracking is an important requirement.
  • Server Failure: - The complete functionality of the system is hosting events. If the server crashes, the whole system will go away even though all the customers rely solely on the computer.
  • Heavy Traffic:- The server is the infrastructure for managing entire elements of the organization that offer the server overload. Internet traffic will be even more relevant as the customer must start their contact session from boot time to disconnect. System routing must be properly maintained otherwise it tends to lead this same computer as a crowded state or the standard processes will be affected.
5 0
3 years ago
The sum of these 9 numbers is 36. 2, 2, 6, 2, 1, 8, 7, 5, 3 What is the mean of these 9 numbers?
fiasKO [112]

Answer:

4

Explanation:

The mean is the sum divided by the count of numbers, so 36/9 = 4

6 0
2 years ago
Read 2 more answers
The text discusses three approaches to combining overall cost leadership and differentiation competitive advantages. Which of th
dedylja [7]

Answer:

C. deriving benefits from highly focused and high technology markets

Explanation:

Firms that engage in cost-leadership approach seek to combine a low per-unit income with large sales for profit making purposes. Typically, but not always, they are more inclined to market their products and services to a large population base or a niche with a high demand volume. While differentiation enables a company to accomplish a competitive advantage. A Competitive advantage enables a company to achieve more strides over other companies offering related product substitutes. It is an important marketing process that is of critical economic importance to a business.

It should be noted that deriving benefits from highly focused and high technology markets is not part of the approaches to combining overall cost leadership and differentiation competitive advantages.

3 0
3 years ago
Andrea wants to to install a new internet connection . she eants to use the fastest one she can find . what are the maximum spee
DaniilM [7]

A dial-up access connection supports a speed up to <u>5</u><u>6kbps</u>, whereas an ISDN line goes up to 1.9Mbps. A DSL connection can support a maximum of 20<u>mbps</u>. Internet access speed through cable TV is capable of up to 1000mbps.

Dial-up connection is by far the slowest of all known internet connections. The maximum speeds that can be supported by this connection are about 56Kbps. Use of this type of connection requires a separate phone line. In an ISDN type of connection, the maximum speeds depend on where in the world you are. The highest to have ever been recorded is an ISDN E1 line that has a combined data rate of 1.9 Mbit/s. Speeds transmitted through DSL are generally the same ones that are transmitted through cable internet and satellite connection. You can expect DSL speeds of 512Kbps to a max of 20Mbps. The cable internet is a broadband internet access and the highest bit rates of cable internet can go be up to 1GBPS which is equivalent to 1000Mbps.

6 0
3 years ago
Look at the following description of a problem domain:The bank offers the following types of accounts to its customers: saving a
Alchen [17]

Answer:

The answers are explained below

Explanation:

1) Identify the potential classes in this problem domain be list all the nouns

class Customer

class Acco  unt

2) Refine the list to include only the necessary class names for this problem

the class customer is not necessary to solve the problem itself, therefore the only class could be the account class

3) Identify the responsibilities of the class or classes.

The responsibilities of the class account will be

* determination of the type of account--> Acc  ount . type(char)

*  deposit money into the account --> Acc  ount . de posit(float)

* withdraw money into the account --> Acc  ount . with draw(float)

* show balance of the account --> Acc  ount . bal ance()

* generate interest --> Acc  ount . int erest()

Please join the words together. I used spaces due to regulations

5 0
4 years ago
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