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Eva8 [605]
3 years ago
14

Which of the following is a true statement? Question 33 options: Data entities correspond to sources/sinks on a data flow diagra

m. An entity type is described many times in the data model. A data entity will have many possible instances. Verbs are used to name entity types. Relationships correspond to data flows on a data flow diagram.
Computers and Technology
1 answer:
hichkok12 [17]3 years ago
5 0

Answer:

A data entity will have many possible instances.

Explanation:

A data model is the relative representation of data objects, showing the relationships between them as well as the rules guiding the relationships.

The graphical representation of data model showing the data requirements of a database is Entity-Relationship Diagram (ERD).

<u>Components of ERD</u>

<em>1. Entities</em>: These refers to all the table that makes up a database. An specific example of an entity is called an Instance of an entity.  E.g London, Moscow, Johannesburg, Lagos are all records in a table called location. This example shows that a data entity will have many possible instances.

<em>2. Attribute:</em> This is the information needed to describe a particular table of database.

<em>3. Relationships</em><em>:</em> This shows how tables are linked together.

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What is the HIPAA Privacy rule, and why does it affect IT professionals?
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Solution:

The HIPAA Privacy Rule establishes national standards to protect individuals' medical records and other personal health information and applies to health plans, health care clearinghouses, and those health care providers that conduct certain health care transactions electronically.

IT affects it by these ways:

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This takes for patient.

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6 0
3 years ago
Write an if/else statement that compares the value of the variables soldYesterday and soldToday, and based upon that comparison
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Answer:

if(soldYesterday > soldToday){

salesTrend = -1;

} else if(soldToday > soldYesterday){

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}

Explanation:

The if/else statement is more explicit. The first if condition check if soldYesterday is greater than soldToday, if true, then -1 is assigned to salesTrend.

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What two statements about IPv6 addresses are true? This task contains the radio buttons and checkboxes for options. The shortcut
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Answer:

A and C

Explanation:

Option A:

In IPv6 there is a rule to reduce an IPv6 address when there are two or more consecutive segments of zeros just one time. This rule says that you can change the consecutive zeros for “::”  

Here is an example

How to reduce the following IPv6 address?

ff02:0000:0000:0000:0000:0000:0000:d500

Ans: ff02::d500

Example 2:

2001:ed02:0000:0000:cf14:0000:0000:de95

Incorrect Answer -> 2001:ed02::cf14::de95  

Since the rule says that you can apply “::” just one time, you need to do it for a per of zero segments, so the correct answer is:

Correct Answer -> 2001:ed02::cf14:0:0:de95

Or

2001:ed02:0:0:cf14::de95

Option C:

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