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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

find the 15th term of the geometric sequince whose first is 18 and last term of 387
Jerwin Reply
I know this work
salma
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
Abhi
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?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
hmm
Abhi
is it a question of log
Abhi
🤔.
Abhi
I rally confuse this number And equations too I need exactly help
salma
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
salma
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
hii
Uday
hi
salma
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?
Kim
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Al
y=10×
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
how do you translate this in Algebraic Expressions
linda Reply
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
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit 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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