CIS 110 Final Questions - Flashcards

question

what is the best reason to include height and width attributes on an tag.

answer

to help the browser render the page faster because it reserves the appropriate space for the image

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What is the browser's action when you configure BOTH a background color and background image for the body selector?

answer

display the background color while the background image loads and before the background image is displayed

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When a web page uses graphics for the main navigation links, provide accessibility by:

answer

providing text links on the bottom of the page

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A(n) ________ is an image that is configured so that parts of the image can be used as one or more hyperlinks.

answer

image map

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What is the code below that will configure a background image called parchment.gif for a web page using CSS?

answer

body {background-image:url(parchment.gif); }

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what is the code below that uses CSS to eliminate the default border on an image configured as an image?

answer

img {border: 0; }

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The theorem that states that any program logic can be written using only three constructs is called the ________________theorem

answer

Structure

question

Counted repetition refers to the idea that an index is _________ and then tested each time the loop iterates.

answer

incremented

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What controls a for loop?

answer

iteration variable

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How many iterations will occur in this loop? for (again = 1; again ;=5; again = again + 1) {...}

answer

5

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what code iterates 10 times?

answer

) for (i = 1; i ;=10; i = i + 1)

question

What is an example of an infinite loop?

answer

for (i = 1; i ;= 4; i = i - 1)

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What does + mean in javascript?

answer

addition or concentration

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in the line: var rows = new Array(5); what will result?

answer

the first item in the array will be rows[0]

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what is clearTimeout used for?

answer

Cancelling a timer

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For the elements of the array to store an image, they must be initialized to a(n):

answer

image object

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In a for loop, the operation that sets the variable's value for the first iteration of the loop is the:

answer

initialization

question

What is an indexed base name?

answer

array

question

What is the standard form of the World-Famous Iteration? (WFI)

answer

) for ( j=0; j<n; j++) { . . . }

question

Which is the first step in the program development cycle?

answer

Analyze the problem

question

What is not a control structure?

answer

syntax

question

What is not one of the primary Javascript data types?

answer

float

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What data type can only have one of two possible values?

answer

Boolean

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What is not an acceptable variable name?

answer

1_Name

question

What is not an acceptable variable name for a friend?

answer

my friend

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If the variable hours = 10, what is the value of the variable salary after the following instruction has been executed: salary = hours * 8

answer

80

question

which method allows you to display text on an html page?

answer

write()

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Which method will retrieve the contents of an html element?

answer

getElementByld()

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Evaluate 8 % 7

answer

1

question

Given: a = 4 and b = 3, evaluate: (14 % a ) * a * b / 6 + (b * b)

answer

13

question

If car = "Honda", how does the following expression evaluate: (car < "Toyota");

answer

true value

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If beverage = "tea", which of the following is true?

answer

!(beverage != "tea");

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Which is equivalent to (X > 5) given that X is a numeric variable.

answer

!(X <= 5)

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Which of the following will assign the variable named timCall to the sentence: Tim called, "Lassie, come home!"

answer

var timCall = 'Tim called, "Lassie, come home!"';

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Which of the following is NOT a valid variable name for a dog?

answer

dogs-rule

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Given the following code snippet, what will be displayed on the web page if the user enters 4 at the prompt? var myNum = prompt("Enter a number:"); var result = myNum + myNum; document.write(result);

answer

44

question

Given the following code snippet, what will be displayed on the web page if the user enters 4 at the prompt? var myNum = prompt("Enter a number:"); var result = myNum * myNum; document.write(result);

answer

16

question

Given the following code snippet, what will be displayed on the web page? var X = 23; var Y = 3; var Z = X + Y; document.write(Z);

answer

26

question

Given the following code snippet, what will be displayed on the web page if the user enters 6.35 at the prompt? var A = prompt("Enter a number:"); document.write(parseFloat(A) + ", "); document.write(parseInt(A)); a. 6.35NaN b. 6.35 c. 6.35, 6 d. 6.35, 6.35

answer

6.35, 6

question

Given the following code snippet, what will be displayed on the web page if the user enters 55 at the prompt? var result = "Yes!"; var multiply = prompt("What is 5 * 11?"); result = (parseInt(multiply) == 55)?"Correct":"Incorrect"; document.write(result);

answer

correct

question

What type of loop executes at least once?

answer

post-test

question

what is the value of x after the following statement executes, given that initially x = 8: x*=3;

answer

24

question

How many times will "bye bye" display after the following code is executed? var b = 3; var g = 1; do { document.write("bye bye"); g++; } while (g > b)

answer

1

question

What is the result of the following code snippet? var car = 4; var result = isNaN(car); document.write(result);

answer

True

question

What is the value of the variable myLetter after the following statements are executed? var name = "Santa Claus"; var myLetter = name.charAt(3);

answer

"t"

question

What function will generate a random number between 1 and 100, inclusive

answer

. num = (Math.floor(Math.random() * 100) + 1;

question

Which of the following will display "cost is $23.95", assuming cost = 23.9487 ?

answer

document.write("cost is " + cost.toFixed(2);

question

In the following statement, what is the initial condition, given that y = 600? for(x = 500; x > y; x++)

answer

x = 500

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What is the value of count when the following loop is exited? var count = 20; while( count < 200) count*=3;

answer

540

question

What will be displayed after the following loop is exited? var name = "Liam"; for(var x = 3; x < 0; x--) document.write(name.charAt(x) + ", ");

answer

m a I L

question

What is the value of address, given: myAddress = "123 Duck Street, NW"; address = myAddress.length;

answer

19

question

What is the value of street given: var street = " "; myAddress = "123 Duck Street, NW"; for( var x = 4; x <= 7; x++) street = street + myAddress.charAt(x);

answer

Duck

question

From language to language, generally an identifier:

answer

starts with a letter and is followed by letters, numerals, or the underscore

question

Which of the following is a valid JavaScript variable name?

answer

BR549

question

In JavaScript, the escape symbol is the:

answer

backslash ()

question

Which of the following is not a suitable assignment statement?

answer

length * width = area

question

The value used for a variable on the right side of an assignment statement is:

answer

the value before the statement is executed

question

The first step in solving a programming expression is to process:

answer

the part of the expression inside the parentheses

question

In JavaScript, 17%5 is:

answer

2

question

An if statement must have:

answer

a semicolon at the end of it

question

How is an empty string written?

answer

""

question

string constants/literals are:

answer

surrounded by quotes in Javascript code

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Javascript is:

answer

an interpreted language, meaning that the program code is executed directly without compiling

question

what side programs do not require users to wait for data to be sent over the Internet to a Web server?

answer

client

question

What code can be inserted directly into an HTML file or placed in a separate text file that is linked to a Web page?

answer

Javascript

question

Placing JavaScript code in a Web page file means that users need to retrieve only ____ file from the server.

answer

1

question

What is the type of attribute value for Javascript?

answer

text/javascript

question

there is no limit to the number what elements used within a web page?

answer

script

question

what section of a web page can scripts be placed?

answer

head and body

question

JavaScript supports comment tags, using a set of double ____ at the beginning of a line that instructs the browser to ignore the line and not interpret it as a JavaScript command.

answer

slashes

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One way to handle the way that XML parsers treat the content of a JavaScript program is to place the JavaScript code within a(n) ____ section.

answer

CDATA

question

The text string specified by the document.write() method can be enclosed within what?

answer

double quotation marks or single quotation marks

question

Each JavaScript command line ends with a(n) ____ to separate it from the next command line in the program.

answer

semicolon

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An action for the browser to take in a script is called what?

answer

a command and a statement

question

You can display single quotation marks with the document.write() method by enclosing your text string within what?

answer

double quotation marks

question

Another method to write text to the Web page is the what method?

answer

document.writeIn()

question

Why must you pay attention to whether or not letters are capitalized in javascript?

answer

javascript is case sensitive

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what does javascript do with most occurrences of white space?

answer

ignores it

question

you can indicate that a statement continues on the next line using what?

answer

backslash

question

what are useful because they can store information created in one part of your program and use that information in another?

answer

variables

question

naming a variable, the first character must be either a letter or what?

answer

underscore

question

variable names cannot contain what?

answer

spaces

question

variable declarations should be placed at what part of a program to make interpretation easier?

answer

beginning

question

what is any group of characters such as "hello" or "happy holidays!"?

answer

text string

question

Variable names declared in a function can be used when? 19

answer

only inside that function

question

what is not a part of a function?

answer

global variables

question

output directly onto a web page from javascript is done using what?

answer

document.write()

question

a variable declared in a function is what?

answer

local variable

question

in javascript the result of a function call can be printed on the monitor how?

answer

with the alert( ) call interactively after the page is displayed while building the page on the fly

question

a function that cannot be reused:

answer

cannot be used as a building block

question

javascript function that retrieves the current date and time in numeric form is what?

answer

date()

question

the function toString():

answer

converts a numeric form to a printable form

question

what is another word for function?

answer

procedure, subroutine, method

question

how would you find the time between two dates?

answer

divide the difference by 1000 to find the seconds

question

which function loads the page that is specified as its first arguement?

answer

window.open()

question

what are inputs also called?

answer

parameters

question

the random numbers generated by math.random():

answer

are really pseudo-random

question

the values returned by the Math.random() function are between

answer

0 (inclusive) and 1 (exclusive)

question

before you use a variable in javascript you should what?

answer

declare it

question

what is an exemple of a non numeric value data type?

answer

"12"

question

how many data types does javascript support?

answer

4

question

you can cause a variable to have no value by assigning it what value?

answer

Null

question

what symbol can be used to combine text strings?

answer

+

question

what language forces programming to explicitly identify a variable's data type?

answer

strongly typed

question

when used with both numbers and text, what symbol treats the numbers as text?

answer

c. +

question

when variables are not strictly tied to specific data types, programmers refer to the language as_____ typed language

answer

loosely

question

if you follow z+1 with the statement z="3", then z has what data type?

answer

text string

question

If x has the value 5 and the variable y has the value "combo", then y + " no " + x results in what value?

answer

combo no 5

question

a function includes what function which identifies it?

answer

name

question

a function may require what values used by the function?

answer

parameters

question

what commands can be used in a function?

answer

return 3; z=1+2; document.write("Hello World");

question

What does the JavaScript command document.println("Hello" + "World"); print? 19

answer

HelloWorld

question

what is X in xml?

answer

extensible

question

what are the similarities between xml and html

answer

are markup languages derive from sgml use tags

question

what is mandatory in xml?

answer

document root element

question

where is other optional info placed?

answer

in the prolog

question

if you use and xml declaration at the top of an xml doc then

answer

it must be the 1st thing

question

the doc type definition is a statement of what?

answer

the permitted structure of the xml

question

what can you do if you know the structure and properties of data?

answer

retrieve it organize it manage it

question

in database terminology, a set of entity instances refers to what?

answer

table

question

the kind of info stored in a field in a database is what?

answer

data type

question

a project operation does what?

answer

a)return a table with as many rows as the original tables b)return only unique rows and merge duplicate rows c)automatically sort the list in alphabetical order by the first field

question

databases store data just once why?

answer

to avoid redundancy

question

how do you identify the type of data in xml?

answer

by its tag

question

what tag encloses everything in an xml?

answer

the root element

question

when is indenting required in xml?

answer

never

question

a database row is what?

answer

tuple or record

question

database rows are what?

answer

unordered

question

what is the main use of a database?

answer

find info

question

when using a select operation the test is applied to what?

answer

each row

question

the tag is what?

answer

a collection tag

question

the tag is what?

answer

an identification tag

question

what is the root tag?

answer

collection tag

question

what styles xml files for a browser?

answer

xsl

question

an incremental approach to development has the advantage of what?

answer

shortening development time making the final product smaller limiting errors to recently developed materials

question

when you open an xml file without a stylesheet what happens?

answer

it displays a tree showing the structure of your file

question

what are xsl tag rules called?

answer

templates

question

the second line of an xml file that uses an xsl template begins with what?

answer

;?xsl-stylesheet

question

iDiary is ordered by what?

answer

date

question

each attribute in an xsl file requires what?

answer

tag

question

to add entries to idiary you would do what?

answer

modify the xml file

question

xml and xsl files are combined in what to convert them to html?

answer

transformer

question

Virus protection software:

answer

should be installed on your computer immediately must be updated to keep it current must be operating at all times to protect against worms and viruses

question

European privacy standards are closest to the policy called what?

answer

no uses

question

American privacy standards are closest to what?

answer

no limits

question

The accuracy of personal info is who's responsibility?

answer

individual

question

Who is in charge of privacy policies and communication with individuals regarding their privacy?

answer

data controller

question

personal info can be tracked by what?

answer

cell phone use, cookies, ip address

question

if you disable cookies on your computer what happens?

answer

all cookies, including third-party cookies, will be blocked normal Web interaction will be more difficult you won't be able to do online transactions

question

Spyware is what?

answer

software that snoops private info

question

The RSA public key cryptosystem relies on what?

answer

prime numbers

question

where are cookies stored?

answer

on a client and retrieved by a server

question

Backups on you personal computer:

answer

are just as essential to a personal system as a business system

question

personal backups are not critical for what?

answer

information that has been backed up but not changed software programs unimportant files

question

The most important consideration in a disaster recovery plan is what?

answer

to have a backup of your data

question

What puts you at greater risk of being hacked?

answer

using a Web site that doesn't use encryption using email to respond to requests for personal information clicking on a URL instead of typing it in all of the above

question

when were OCED privacy principles developed?

answer

1980

question

Which OCED principle states that personal data should be protected by reasonable security measures against risks of disclosure, unauthorized access, misuse, modification, destruction, or loss?

answer

security Principal

question

Which privacy law was passed in 1996?

answer

Health Insurance Privacy and Accountability Act

question

A cookie contains info stored in how many fields?

answer

seven fields

question

The crime of posing as someone else for fraudulent purposes is known as what?

answer

identity theft

question

A combo of encryption and decryption methods is what?

answer

crytosystem

question

what is the mode in which a virus worm or other malware gets into your computer?

answer

vector of attack

question

What may result from malware?

answer

spam sent from your computer secure information obtained from your computer contents erased on the hard drive

question

When the send button is clicked what happens?

answer

two copies of the message are produced

CIS 110 Final Questions – Flashcards

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