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Kipish [7]
2 years ago
9

XYZ Corp.’s facilities in Nashua, New Hampshire, are two office buildings 400 feet apart, each with its own LAN. To connect the

two networks, you plan to dig a trench and lay cable in conduit between the two buildings. You want to use fiber-optic cable, but your budget-conscious facilities manager wants to use 100 Mbps Ethernet over twisted-pair cable. Which of the following reasons can you use to justify fiber-optic cable in this case, and why?
a: Twisted pair won't span a 400-foot distance ·
b: Fiber-optic cable is cheaper and easier to work with than twisted pair
c: Twisted pair is a conductive cable and can, therefore, carry current based on the difference in ground potential between the two buildings.
d: Fiber-optic cable leaves more room for growth and future needs for · increased bandwidth than twisted pair does
Computers and Technology
1 answer:
damaskus [11]2 years ago
6 0

Answer:

a: Twisted pair won't span a 400-foot distance.

Explanation:

The maximum distance that twisted pair cables can support without attenuation is 100 meters which is approximately 328 feet and the two office buildings are 400 feet apart, so it is useless to install a twisted pair cable for such a large distance. A much better option would be to install optic fiber. Though it is a bit expensive but it is the best option in this case.

Hence option (a) is the correct reason for installing an optic fiber cable rather than a twisted pair cable.

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When you are shopping online and finalizing your order, you usually fill in forms for your name, address, email, and payment met
aksik [14]

Answer:

a.JavaScript

Explanation:

<em>Form validation</em> is adopted to prevent the abuse of web form by malicious users, data that are not properly validated causes or leads to security vulnerabilities, thereby making a website to be at a risk of being attacked by malicious users.

<em>Validation rules</em> checks that the data a user enters in a record meets the specify standards before the user is allowed to save the record, a validation rule evaluates the data in one or more fields and return it as true or false.

<em>JavaScript form validation  can be used to check all required fields, the steps are adopted are:</em>

<em>i) Basic validation − The form is first checked to make sure that all the mandatory fields are filled.</em>

<em>ii) Data format validation −The data that is entered is then checked for correct form and value before allowing to proceed, submit or save the record.</em>

6 0
1 year ago
Write a SQL query to find the population of the planet named 'Caprica' -- 10 points Find the first name, last name, and age of p
Artemon [7]

The question is incomplete! Complete question along with answer and step by step explanation is provided below.

Please find the attached question.

Answer:

a) SQL Query:

SELECT population

FROM bsg_planets

WHERE name='Caprica';

b) SQL Query:

SELECT fname, lname, age

FROM bsg_people

WHERE lname!='Adama';

c) SQL Query:

SELECT name, population

FROM bsg_planets

WHERE population > 2600000000

d) SQL Query:

SELECT fname, lname, age

FROM bsg_people

WHERE age IS NULL;

Explanation:

a) Write a SQL query to find the population of the planet named 'Caprica'

Syntax:

SELECT  Column

FROM TableName

WHERE Condition;

For the given case,

Column = population

TableName  = bsg_planets

Condition = name='Caprica'

SQL Query:

SELECT population

FROM bsg_planets

WHERE name='Caprica';

Therefore, the above SQL query finds the population of the planet named 'Caprica' from the table bsg_planets.

b) Find the first name, last name, and age of people from bsg_people whose last name is not 'Adama'

Syntax:

SELECT  Column1, Column2, Column3

FROM TableName

WHERE Condition;

For the given case,

Column1 = fname

Column2 = lname

Column3 = age

TableName  = bsg_people

Condition = lname!='Adama'

SQL Query:

SELECT fname, lname, age

FROM bsg_people

WHERE lname!='Adama';

Therefore, the above SQL query finds the first name, last name and age of people whose last name is not 'Adama' from the table bsg_people.

c) Find the name and population of the planets with a population larger than 2,600,000,000

Syntax:

SELECT  Column1, Column2

FROM TableName

WHERE Condition;

For the given case,

Column1 = name

Column2 = population

TableName  = bsg_planets

Condition = population > 2600000000

SQL Query:

SELECT name, population

FROM bsg_planets

WHERE population > 2600000000

Therefore, the above SQL query finds the name and population of the planets with a population larger than 2,600,000,000 from the table bsg_planets.

d) Find the first name, last name, and age of people from bsg_people whose age is NULL

Syntax:

SELECT  Column1, Column2, Column3

FROM TableName

WHERE Condition;

For the given case,

Column1 = fname

Column2 = lname

Column3 = age

TableName  = bsg_people

Condition = age IS NULL

SQL Query:

SELECT fname, lname, age

FROM bsg_people

WHERE age IS NULL;

Therefore, the above SQL query finds the first name, last name and age of people whose age is NULL from the table bsg_people.

6 0
2 years ago
Read 2 more answers
Drag each label to the correct location on the image.
pantera1 [17]

Answer:

1.computer-based  training modules  is an example of hierarchical technique.

Explanation:

Computer based training modules are the example of hierarchical model or technique of website. In this technique courses or modules are linked with each other in hierarchical structure. To start some advance module we should learn some basic modules first.

2.school website is an example of Linear Structure of Website.

Explanation:

In linear structure of website, pages are linked in a sequence. We can follow the links to find some information in sequential manner.

3.bookstore  website is an example of Linear Structure of Website.

Explanation:

In linear structure of website, pages are linked in a sequence. We can follow the links to find some information in sequential manner.

4.single-product  websites is an example of Linear Structure of Website.

Explanation:

In linear structure of website, pages are linked in a sequence. We can follow the links to find some information in sequential manner.

5.county library  website is an example of Webbed technique.

Explanation:

Computer based training modules are the example of webbed model or technique of website. In this technique many pages are connected or linked to many other pages and each page can access any other page. This is a complex structure of website.

6.online gift store  website is an example of Linear Structure of Website.

Explanation:

In linear structure of website, pages are linked in a sequence. We can follow the links to find some information in sequential manner.

7.federal government  website is an example of Webbed technique.

Explanation:

Computer based training modules are the example of webbed model or technique of website. In this technique many pages are connected or linked to many other pages and each page can access any other page. This is a complex structure of website.

3 0
2 years ago
. Write a statement that throws an IllgalArgumentException with the error message Argument cannot be negative.
dybincka [34]

Answer:

public class PostAccount

{

  public void withdraw(float savings)

  {

     if (savings >=0 )

     {

        IllegalArgumentException exception

              = new IllegalArgumentException("Savings cannot be negative");

        throw exception;

     }

     balance = savings - withdraw;

  }

 }

Explanation:

IllgalArgumentException is a type of NumberFormatException  of runtime exception. Here in the program we have created an object of IllgalArgumentException class and after that we have thrown the error to show the condition if it does not satisfy the if condition.

8 0
1 year ago
Assuming that the list newAnimals is initially empty, what would this list contain after the following code segment is run?
allochka39001 [22]

Answer:

b

Explanation:

4 0
2 years ago
Read 2 more answers
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