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Answer 18

Question 19

True or False: XML is a language.

Answer 19

Question 20

True or False: Every custom markup language created using the XML specification must adhere to XML's underlying grammar.

Answer 20

Question 21

True or False: XML documents are saved with a .rss extension.

Answer 21

Question 22

True or False: An XML document simply stores and describes data.

Answer 22

Question 23

True or False: Good practice suggests that the names of the tags in an XML document should describe the data they contain.

Answer 23

Question 24

True or False: The first line of an XML document, (known as the XML declaration) , should be as shown in Listing 1 below (although the version number may be different at some point in the future):

Listing 1 . Question 24.
<?xml version="1.0"?>

Answer 24

Question 25

True or False: Just like HTML documents, XML documents may have multiple root elements.

Answer 25

Question 26

True or False: A root element can have one or more child elements that describe the root element in more detail.

Answer 26

Question 27

True or False: In Listing 2 below, units is called a parameter

Listing 2 . Question 27.
<height units="inches">66</height>

Answer 27

Question 28

True or False: The terminology "well-formed" is commonly used in conjunction with an XML document.

Answer 28

Question 29

True or False: All of the following must be true in order for an XML document to be well-formed:

  • A root element is required.
  • Closing tags are required.
  • Elements must be properly nested.
  • Values must be enclosed in quotation marks.
  • The document must be valid.

Answer 29

Question 30

True or False: An XML attribute is the most basic unit of an XML document.

Answer 30

Question 31

True or False: An XML element can contain text, attributes, and other elements.

Answer 31

Question 32

True or False: Attributes are contained within an element's opening tag and have values that are delimited by quotation marks.

Answer 32

Question 33

True or False: Tags that begin with the characters in the first line of Listing 3 and end with the characters in the second line of Listing 3 are called processinginstructions.

Listing 3 . Question 33.
<? ?>

Answer 33

Question 34

True or False: Processing instructions must be enclosed by the opening and closing tags of the root element.

Answer 34

Question 35

True or False: XML is not sensitive to upper and lower case.

Answer 35

Question 36

True or False: Element and attribute names must begin with a letter, a number, an underscore, or a colon.

Answer 36

Question 37

True or False: Closing tags are not optional in XML.

Answer 37

Question 38

True or False: Element names may begin with upper-case XML.

Answer 38

Question 39

True or False: The root element can have child elements, and child elements can have other child elements provided that they are properly nested.

Answer 39

Question 40

True or False: An attribute stores additional information about an element without adding text to the element's content.

Answer 40

Question 41

True or False: Attribute values must be in double quotes.

Answer 41

Question 42

True or False: Empty elements are elements that don't have any content of their own.

Questions & Answers

An investment account was opened with an initial deposit of $9,600 and earns 7.4% interest, compounded continuously. How much will the account be worth after 15 years?
Kala Reply
lim x to infinity e^1-e^-1/log(1+x)
given eccentricity and a point find the equiation
Moses Reply
12, 17, 22.... 25th term
Alexandra Reply
12, 17, 22.... 25th term
College algebra is really hard?
Shirleen Reply
Absolutely, for me. My problems with math started in First grade...involving a nun Sister Anastasia, bad vision, talking & getting expelled from Catholic school. When it comes to math I just can't focus and all I can hear is our family silverware banging and clanging on the pink Formica table.
find the 15th term of the geometric sequince whose first is 18 and last term of 387
Jerwin Reply
I know this work
The given of f(x=x-2. then what is the value of this f(3) 5f(x+1)
virgelyn Reply
hmm well what is the answer
how do they get the third part x = (32)5/4
kinnecy Reply
can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
okay, so you have 6 raised to the power of 2. what is that part of your answer
I don't understand what the A with approx sign and the boxed x mean
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
I'm not sure why it wrote it the other way
I got X =-6
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
oops. ignore that.
so you not have an equal sign anywhere in the original equation?
is it a question of log
I rally confuse this number And equations too I need exactly help
But this is not salma it's Faiza live in lousvile Ky I garbage this so I am going collage with JCTC that the of the collage thank you my friends
Commplementary angles
Idrissa Reply
im all ears I need to learn
right! what he said ⤴⤴⤴
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Embra Reply
Jeannette has $5 and $10 bills in her wallet. The number of fives is three more than six times the number of tens. Let t represent the number of tens. Write an expression for the number of fives.
August Reply
What is the expressiin for seven less than four times the number of nickels
Leonardo Reply
How do i figure this problem out.
how do you translate this in Algebraic Expressions
linda Reply
why surface tension is zero at critical temperature
I think if critical temperature denote high temperature then a liquid stats boils that time the water stats to evaporate so some moles of h2o to up and due to high temp the bonding break they have low density so it can be a reason
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
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Source:  OpenStax, Introduction to xml. OpenStax CNX. Dec 02, 2014 Download for free at https://legacy.cnx.org/content/col11207/1.18
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