CS 008 Final
The code segment outputs "<p>How are you?</p>".function askQuestion() { echo "<p>$question</p>"; } $question = "How are you?"; askQuestion();
FALSE
The code segment outputs 6.function multiplyNumbers($x, $y) { $answer = $x * $y; return $answer; } $z = multiplyNumbers(2, 3); echo $answer;
FALSE
The developer can change the emulated width and height when the emulator is in Device mode.
FALSE
The emulator is only capable of emulating the iPhone.
FALSE
The fac_id column can have a NULL value.
FALSE
The following INSERT statements add two students into the students table. INSERT INTO student VALUES (777, 'Red', 'Rosy', 4.0); INSERT INTO student VALUES (777, 'White', 'Willow', 3.1);
FALSE
The following code uses the getData() function from the figure above and provides sufficient data validation for a 16 digit credit card number.$creditCardNum = getData("creditCardNum"); if (strlen($creditCardNum) == 16) { // Valid number } else { // Invalid number }
FALSE
The geolocation (latitude and longitude) of the emulated device is modified by moving the desktop computer to a different location.
FALSE
The height property is often used in the viewport meta tag.
FALSE
The include statement inserts the contents of another file before the PHP script executes.
FALSE
The max-width property should never be used in a fluid layout.
FALSE
The number 5 billion may be stored in an INTEGER column.
FALSE
The pool company will not know that the water level is too low unless the customer calls or someone happens to check the system status web page.
FALSE
The pool company would have to send a technician to the pool to change the control system settings.
FALSE
The range and number widgets are interchangeable choices for entering numbers.
FALSE
The record 123, 1004, C can be added to the enroll table.
FALSE
The sass command-line tool creates a .scss file from a .css file.
FALSE
The student table has a field for storing student addresses. True False
FALSE
The students table may contain two students with the same stuId.
FALSE
The text is horizontally centered in the web browser. <body> <div style="width:300px; margin:auto;">Some text</div> </body>
FALSE
The web browser will always create a new window for hyperlinks whose target attribute is _blank.
FALSE
The word "CREATE" must be capitalized in a CREATE statement.
FALSE
The www.whitehouse.gov home page looks identical in desktop Chrome and in an emulated iPhone 6 browser.
FALSE
To copy the functionality of another web page found on the web, just copy the HTML from the view source page.
FALSE
Two tags within the same HTML document may have the same id.
FALSE
TypeScript code is executed by the web browser.
FALSE
UI libraries always use JavaScript to govern the behavior of the UI widgets.
FALSE
Unlike the blind, people who are deaf do not need special accommodation for websites.
FALSE
Video is often played automatically on mobile websites.
FALSE
Web applications typically use the same physical database in both the development environment and deployment environment .
FALSE
Web developers typically create web pages using new features available exclusively on a particular browser.
FALSE
Web hosting companies generally charge more for hosting on Linux servers than for hosting on Windows servers.
FALSE
When an HTML form uses method="post" and submits to a PHP script, the form values appear in the URL's query string.
FALSE
What is $_SERVER["REQUEST_METHOD"] the first time a script is loaded in the web browser? GET POST
GET
What does the code below output?sayGoodbye("Sam"); function sayGoodbye($name) { echo "Goodbye, $name"; } Goodbye, Sam Goodbye, $name Goodbye,
Goodbye, Sam
What shows are selected by the following query?SELECT * FROM shows WHERE DATEDIFF('2016-08-01', releaseDate) > 365 * 10; All shows No shows Grey's Anatomy
Grey's Anatomy
Which expression evaluates to true if the user does not check any checkboxes?if (_______) { echo "No titles selected"; } count($_POST["books"]) == 0 !isset($_POST["books[]"]) !isset($_POST["books"])
!isset($_POST["books"])
Which expression evaluates to true if the user does not select any radio buttons?if (_______) { echo "No team selected"; } $_POST["team"] == "" isset($_POST["team"]) !isset($_POST["team"])
!isset($_POST["team"])
What is the second most preferred font for the <p> element?
"Arial"
Add Tim's grade to the $grades array.$grades = ["Beth" => "B", "Lance" => "C", "Jose" => "A"]; $grades[_____] = "D";
"Tim"
What is the most preferred font for the <p> element?
"Verdana"
What argument is missing? $sql = "SELECT * from songs WHERE artist LIKE :artist"; $stmt = $pdo->prepare($sql); $stmt = $pdo->bindValue(_____, "Black%"); $stmt->execute();
"artist"
What selector matches all elements with the mfg class attribute?
*.mfg
Assume a directory called "junk" is located in the hobbies directory, and the junk directory contains the file stuff.html. What relative URL would stuff.html use to link to index.html?
../../index.html
.highlight { border: { width: 2px; } }
.highlight { border-width: 2px; }
Cause all elements with the class name logbase to be displayed as superscript text. { vertical-align: super; font-size: smaller; }
.logbase
What CSS selector matches the numbers class attribute?
.numbers
What file extension does a PHP script have?
.php
$a = 2; if ($a == "2") { if ($a === "2") { $x = 1; } else { $x = 0; } }
0
$x = 0; if ($x > 10) { $x = 1; }
0
$x = 30; if ($x < 0) { $x++; } elseif ($x < 10) { $x--; } else { $x = 0; }
0
"3" - "2too" + "sixty6" = ?
1
if ("history" < "math") { $x = 1; } else { $x = 0; }
1
In what year did web browsing first become more likely on mobile rather than desktop?
2016
An image that is 50 x 50 logical pixels will use how many total device pixels on a 3 DPR display?
22,500
What is the total <div> width? <style> div { width: 200px; padding: 10px; border: 2px solid green; margin: 5px; } </style> <div>How wide am I?</div>
234 pixels
$value: 20pt + (10 / 2) ;
25pt
Add the name "Stacy" to the end of the $names array. $names = ["Beth", "Lance", "Jose"]; $names[___] = "Stacy";
3
How many JavaScript files are necessary for some Bootstrap components to work?
3
Write a heading for a book chapter titled "Introduction".
<h1>Introduction</h1>
Assuming no other CSS properties apply to the images below, the images appear directly next to each other. <img src="dog.jpg" class="img-fluid"> <img src="cat.jpg" class="img-fluid">
FALSE
Because Chrome is by far the leading browser worldwide, testing a web page only really needs to be done using Chrome
FALSE
Browser fallbacks are only used to make new features work on old browsers.
FALSE
Buttons always submit form data to a server.
FALSE
CSS front-end frameworks are required to build responsive websites that work well on mobile devices.
FALSE
Changing the device in the emulator changes the user agent in the "Network conditions" tab.
FALSE
Client-side data validation makes server-side data validation unnecessary.
FALSE
Color blindness is so rare that web developers do not have to consider the issue when selecting colors for a web page.
FALSE
Developers normally create 1x, 2x, and 3x SVG images to target various DPR devices.
FALSE
Every student is enrolled in at least one class
FALSE
Haml code can be rendered directly in a web browser.
FALSE
Hyperlinks may only contain text.
FALSE
If <h1> text appears too big, <h2> or <h3> tags should be used to decrease the text size.
FALSE
If disk cache is disabled, the cache remains disabled when the DevTools are closed.
FALSE
If two elements are stacked on top of each other and both have margin:20px, the total margin between the two elements is 40px.
FALSE
In the animation above, footer.php used a variable defined in header.php. header.php could also have used a variable defined in footer.php.
FALSE
Inline styles cannot be used with embedded stylesheets or external stylesheets.
FALSE
Which tag creates a text box widget?
<input>
It is better to avoid new HTML5 elements and attributes because of incomplete support for some new HTML5 features.
FALSE
Navigation links are often just as visible on mobile websites as on desktop websites.
FALSE
Only PHP files may be included with the include statement.
FALSE
PHP code runs in a web browser.
FALSE
Passwords from the password widget that are sent to the server using HTTP are safe from prying eyes.
FALSE
Phone numbers and addresses are typically of equal importance to desktop and mobile website users.
FALSE
RWD requires the web server to examine the user agent string in HTTP requests.
FALSE
RWD uses JavaScript to alter the page contents to fit the browser.
FALSE
Really small businesses are exempt from web accessibility requirements.
FALSE
Refer to the figure above that uses an UPDATE statement. If $stuid is not in the students table, a PDOException is thrown.
FALSE
Referring to the figures above, if the user submitted the name as "<h1>Pam</h1>" and howmany as 4 , the browser would display: "Pam ordered 4 widgets."
FALSE
Relational databases will likely not be used for many web applications in the future.
FALSE
SCSS is syntactically different than the original Sass syntax.
FALSE
SQL syntax from one RDBMS usually works without modification in another RDBMS.
FALSE
SVG is ideal for photographs.
FALSE
StatCounter is able to track mobile and desktop browser usage by using a device's camera to watch users accessing the web.
FALSE
The :focus selector normally selects more than one element at a time.
FALSE
The <br> tag has a closing tag.
FALSE
The <div> element from the example above always occupies the same percent of the browser width.
FALSE
The <p> tag can have another <p> tag inside.
FALSE
The audio element's audio can always be paused by the user.
FALSE
The business logic of an SPA should generally be encoded in the front-end.
FALSE
The W3C Markup Validator indicates the HTML below has an error. What attribute is missing from <meta>? <!DOCTYPE html> <html lang="en"> <meta> <title>Learning HTML</title> <body>Some HTML tags have attributes.</body> </html>
charset
Underline the first line in each blockquote. <blockquote>To be or not to be...</blockquote> { text-decoration: underline; }
blockquote::first-line
If the user clicks the "Rate 4" button, to what color is the fourth rating star set?
blue
What is the body's background color on an iPhone 8 in landscape mode with a viewport width of 667px?
blue
What Bootstrap file contains the definition of the bg-success CSS class?
bootstrap.min.css
Enables document interaction
JavaScript
A set of rules describing how to write HTML.
Language
A random website is more likely to have a visitor with low vision than a visitor who is totally blind.
TRUE
A relational database can be used to store documents, objects, graphs, and key-value pairs.
TRUE
A small company may host the company's own website on the company's own web server.
TRUE
A table commonly has at least one column that uniquely identifies each row.
TRUE
A technician installs devices that measure and report water chemical concentrations, water level, pump status, and water flow through the filter system.
TRUE
A website should use an external stylesheet to create styles that apply to all web pages.
TRUE
According to StatCounter, the Safari mobile web browser is most often used to access the web in North America.
TRUE
After the customer reports the water level, the receptionist could inform the caller that a service technician was already dispatched and was six minutes from arriving at the house. True False
TRUE
All the words in the paragraph below appear on the same line when rendered in a browser. <p> Aspire to inspire before you expire. </p>
TRUE
An RDBMS may be commercial or open-source software
TRUE
An SVG image may be defined in a .svg file or in the HTML with the <svg> tag.
TRUE
An advantage to using an SCSS variable to store a color value used multiple times in a stylesheet is that if the color needs to be changed in the future, only the variable needs to be changed.
TRUE
An attacker could use an XSS attack to redirect the user's browser to a malicious website.
TRUE
An inline style does not use a selector.
TRUE
Best practice is to set the initial-scale property to 1
TRUE
Both relational and non-relational databases have been implemented with open source software.
TRUE
COMP-245 has 2 enrolled students
TRUE
CSS preprocessors allow developers to write much less code compared to writing straight CSS.
TRUE
Changing the Network throttling dropdown to "Offline" allows the developer to test how the website behaves with no Internet connection.
TRUE
Changing the div CSS selector width to 30% makes the <div> resize when the browser width is resized.
TRUE
Column databases are generally faster than relational databases for accessing vast amounts of data.
TRUE
Decreasing a desktop browser's width is an easy way to determine if RWD techniques are being used.
TRUE
Developers use ASP.NET, Java, PHP, Python, Node.js, and Ruby on Rails to create web APIs.
TRUE
Each MySQL user is assigned a username and password
TRUE
Every class has at least one enrolled student.
TRUE
Having users enter dates, colors, email, and numbers using the specialized widgets is preferable when an appropriate widget is available.
TRUE
If $_POST["name"] == "" then the user submitted the form without typing their name.
TRUE
If a form submits data with method="get" then $_POST will be empty.
TRUE
If the customer notices the low water level and calls, the company receptionist's browser can have the customer's pool status web page loaded by the time the receptionist answers the phone.
TRUE
If two elements are horizontally adjacent to each other and both have margin:20px, the total margin between the two elements is 40px.
TRUE
In the example above, removing the background-repeat property causes the background image to display repeatedly on the search input.
TRUE
JavaScript does not run as quickly on a mobile web browser.
TRUE
JavaScript frameworks often simplify the use of web APIs in the browser.
TRUE
Keeping the content on a desktop website and a separate mobile website consistent can be a challenge.
TRUE
Links are generally larger on mobile websites.
TRUE
Loading footer.php from the animation above in a web browser results in a warning.
TRUE
Many PHP applications run on Linux with an Apache web server and MySQL as the database.
TRUE
Many browsers add a border around an input when the input has the focus.
TRUE
Mobile websites often show less information than their desktop counterparts.
TRUE
Mobile websites should not rely on mouse hovering to trigger actions on the website.
TRUE
Most RDBMSs use SQL as the system's query language. True False
TRUE
Multiple <source> tags can be used to specify different video formats.
TRUE
MySQL is a popular choice for web hosting companies that provide an RDBMS for their customers.
TRUE
Only one student has less than a 3.0 GPA.
TRUE
PHP is used by Facebook, Wikipedia, and WordPress.
TRUE
Playing video uses significantly more network bandwidth than playing just audio.
TRUE
Progressive enhancement helps designers to simplify the amount of text displayed on a web page and remove unnecessary clutter.
TRUE
Referring to the figures above, if the user typed a space in the name field, the required attribute would allow the form to be submitted, but the server-side data validation would produce an error message.
TRUE
SPAs generally result in less data being sent over the network than web applications developed with dynamically generated web pages.
TRUE
Setting the viewport meta tag property user-scalable=no disables zooming.
TRUE
Some plug-ins are not available for all web browsers.
TRUE
The AAC and MP3 formats are supported by nearly all web browsers
TRUE
The Chrome browser seems to be replacing the Android browser on many phones.
TRUE
The Chrome screen emulator can display a mobile website in portrait or landscape.
TRUE
The SCSS below results in CSS that sets a web page's background color to blue. $theme-color: blue; body { background-color: $theme-color; }
TRUE
The University database has three tables.
TRUE
The audio element can play audio as soon as the audio file has downloaded to the browser.
TRUE
The default value for the target attribute is _self.
TRUE
The embedded stylesheet from the animation above makes all paragraphs in the web page orange.
TRUE
The example above uses the float property to place two containers next to each other.
TRUE
The following INSERT statements add two students into the students table. INSERT INTO student VALUES (999, 'Black', 'Bill', 3.9); INSERT INTO student VALUES (888, 'Green', 'Gary', 3.1);
TRUE
The fragment identifier for the <p id="location"> opening tag is location.
TRUE
The hire_date column can have a NULL value. True False
TRUE
The letters A and B appear on separate lines with a blank line in between when rendered in a browser. <p> A<br><br>B </p>
TRUE
The pool control system periodically transmits summary data over the Internet to a pool service company's web server.
TRUE
The rounded-circle class makes an image appear in an ellipse.
TRUE
The size of the video displayed by a video element is configurable.
TRUE
The student table has 4 records. True False
TRUE
The students table is empty after the table is created
TRUE
The students table may contain two students with the same name.
TRUE
The web server detects mobile browsers by examining the User-Agent request header.
TRUE
To see how a web page is constructed, a user can view the page source in the browser.
TRUE
Web developers can sometimes ignore really old web browsers.
TRUE
Web hosting companies provide various levels of security.
TRUE
When an HTML form uses method="get" and submits to a PHP script, $_GET will contain all the values entered in the form.
TRUE
When implementing separate websites, a mobile browser accessing the desktop website may redirect the mobile browser to the mobile site automatically.
TRUE
mouse.jpg resizes when the <div> resizes. <div class="container-fluid"> <img src="mouse.jpg" class="img-fluid"> </div>
TRUE
rowCount() returns 0 if the executed DELETE statement does not delete any rows.
TRUE
rowCount() returns the number of rows selected by a SELECT statement.
TRUE
Referring to the animation above, why might the PDO constructor throw an exception? The username and password are correct. The MySQL server is running on localhost. The "test" database does not exist.
The "test" database does not exist.
What is $c when the loop terminates? $c = 10; while ($c <= 20) echo $c; $c += 5;
The loop never terminates.
What is $c when the loop terminates?$c = 10; while ($c <= 20); { echo $c; $c += 5; }
The loop never terminates.
An HTML _____ is a program that indicates whether a document follows the HTML standard.
Validator
What selector matches <cite>, <span>, and <a> elements?
cite, span, a
What DSN value was omitted from the animation above? DSN prefix host port dbname
port
Enter the command to exit the mysql tool.
quit
Allow the user to use a slider to select a number between 0 and 10. <input type=" " min="0" max="10">
range
What is the id of the span containing the third rating star?
rating3
What is the body's background color for a desktop browser that is 900px wide?
red
Set the text color to blue for any links where the rel attribute contains nofollow. <a rel="abstract nofollow" href="https://example.com"> a[] { color: blue;
rel~="nofollow"
Which statement terminates the script if util.php is not found in the current directory? include "./util.php"; require "util.php"; require "./util.php";
require "./util.php";
Ensure the user enters a value in the input field. <input type="number" >
required
What CSS style floats an element to the right?
right
What is the third most preferred font for the <p> element?
sans-serif
section { article { &:hover { color: blue; } } }
section article:hover { color: blue; }
Complete the SQL command to display all the songs in the songs table.____ * from songs;
select
Enter the command to display all the tables in the music database.
show tables;
What CSS Bootstrap class makes the text red?
text-danger
What is the width of a block tag?
the full width of the block's parent container
How do the changes below affect the web page? nav { flex: 1 1 auto; } main { flex: 3.5 1 auto; } aside { flex: 1 1 auto; }
the layout will be the same as before
How wide must the browser be to display A and B each occupying 50% of the row? <div class="row"> <div class="col-md-9 col-sm-6">A</div> <div class="col-md-3 col-sm-6">B</div> </div>
≥ 576px and < 768px
666, 'Pratt', 'Becky', 'ENGG', '2017-07-16', FALSE Valid Invalid
INVALID
888, 'Gomez', 'Victor', 'PHY', '1990-12-16', TRUE Valid Invalid
INVALID
Create a combo box that uses the datalist with id "states". <input ="states">
list
$value: #ff1150 - #001120;
#ff0030
$value: #ff1150 + 2;
#ff1352
Cause the element with the ID special to be displayed with the text color red. { color: red; }
#special
Which variable is illegally named?
$2b_
Which constant is illegally named?
$A1_
What condition makes the loop output even numbers 2 through 20?$c = 2; while (_____) { echo $c; $c += 2; }
$c <= 20
Which code segment produces a notice error message?
$count = 2; echo $COUNT;
Output Jose's grade from the $grades array. $grades = ["Beth" => "B", "Lance" => "C", "Jose" => "A"]; echo ______;
$grades["Jose"]
Complete the foreach loop to output all the names and grades in the $grades array.$grades = ["Beth" => "B", "Lance" => "C", "Jose" => "A"]; foreach ($grades as __________) { echo "$name's grade is $grade.\n"; }
$name => $grade
Complete the foreach loop to output each name. $names = ["Beth", "Lance", "Jose"]; foreach (_______ as $name) { echo "$name\n"; }
$names
Output "Jose" from the $names array. $names = ["Beth", "Lance", "Jose"]; echo _____;
$names[2]
Which statement produces a parse error? $owner = "Pam's"; $owner = 'Pam's'; $owner = 'Pam"s';
$owner = 'Pam's';
Select the expression to complete the code below.$statement = $pdo->query("SELECT gpa FROM students"); foreach (_____ as $row) { echo "<p>$row[gpa]</p>"; } $statement $statement->fetch() $pdo
$statement
Select the function call to complete the code below.$statement = $pdo->query("SELECT gpa FROM students"); while ($row = _____) { echo "<p>$row[gpa]</p>"; } $statement->query() $statement->fetch() $statement->fetchAll()
$statement->fetch()
If the textarea below was added to the form in the animation above, what would be added to the query string when the form is submitted?<textarea name="comment">This is a gift</textarea> &comment=This is a gift &comment=This+is+a+gift
&comment=This+is+a+gift
What should C be replaced with? 123, 'Wallace', 'William', 'HIST' 'Wallace', 'William', 'HIST' 'Wallace', 'William', 'HIST', '2017-07-10'
'Wallace', 'William', 'HIST', '2017-07-10'
Which media query is true for a viewport width 1000px width?
(min-width: 500px)
Make the C item occupy the top 2 rows in the 2nd column. #grid-item-c { grid-column: 2 / 3; grid-row: ; }
1/3
Make the A item occupy the entire top row. #grid-item-a { grid-column: ; }
1/4
What does the code below output?$nums = [6, -3, 10, 2]; echo find_max($nums); function find_max($nums) { $max = $nums[0]; foreach ($nums as $n) { if ($n > $max) { $max = $n; } } return $max; } 6 -3 10
10
What is the text size for the <p> element?
10 pt
What are the first and last numbers output by the code segment? $c = 100; while ($c > 0) { echo $c; $c -= 10; }
100 and 10
If an image that is 50 x 50 logical pixels was modified for a 2 DPR display, how large is the new image?
100 x 100
A browser on a 3x screen downloaded dog-large.jpg, which was 300 x 225 pixels. What is the image size in logical pixels when displayed in the browser?
100 x 75
If a column uses the class col-lg-6, how much of the row does the column occupy when the browser is 900px wide?
100%
Which record contains correct values for a new Data Structures class? 1003, COMP-245, 1, MWF 2pm, SCI 200 1004, COMP, 1, MWF 2pm, SCI 200 1004, COMP-245, 1, MWF 2pm, SCI 200
1004, COMP-245, 1, MWF 2pm, SCI 200
In the animation above, the query() method throws a PDOException indicating the MySQL error 1146 occurred because the test.students table does not exist. What MySQL error does the SELECT statement below cause?$sql = "SELECT gpa IN students"; 1054 - Unknown column name 1064 - Parsing error, bad syntax 1336 - Bad value being inserted
1064 - Parsing error, bad syntax
Put a 10 pixel gap between each row and 20 pixel gap between each column. grid-gap: ;
10px 20px
$points = 10; $points--; $points + 2 = ?
11
What is the text size for the <span> element with the band id?
12 pt
What is the total <div> height? <style> div { height: 100px; margin: 10px 5px; } </style> <div>How tall am I?</div>
120 pixels
The default <strong> content width is 115px. What is the total <strong> width? <style> strong { width: 200px; margin: 5px; } </style> <strong>How wide am I?</strong>
125 pixels
3 + 5 * 2 = ?
13
5 + 3 ** 2 = ?
14
What is the total <div> width? <style> div { width: 100px; margin-left: 10px; margin-right: 15px; padding: 2px 5px 10px 20px; } </style> <div>How wide am I?</div>
150 pixels
(3 + 4) % 5 = ?
2
If #grid-container is modified, how many columns will the grid have? #grid-container { display: grid; grid-template-columns: auto auto; }
2
If Hamilton and Grit are the only books checked, what is the output? echo count($_POST["books"]);
2
The INSERT statement adds a student to the student table. How many clauses are in the INSERT statement? INSERT INTO student VALUES (888, 'Smith', 'Jim', 3.0); 1 2 3
2
What argument is missing?$sql = "SELECT * from songs WHERE title LIKE ? AND year > ?"; $stmt = $pdo->prepare($sql); $stmt = $pdo->bindParam(1, $title); $stmt = $pdo->bindParam(_____, $year); $stmt->execute();
2
Make the B item occupy 2 rows and 2 columns in the bottom-right grid corner. #grid-item-b { grid-area: ;
2 / 2 / 4 / 4
What does the code below output?function special_nums() { return [3.142, 2.718, 1.618]; } list($pi, $euler, $phi) = special_nums(); echo $euler; 3.142 2.718 1.618
2.718
If a browser viewport is 400px wide and 300px high, how wide is an element with width:50vmax?
200px
If a browser viewport is 400px wide, how wide is an element with width:50vw?
200px
If the grid container has 10 grid items, what grid-template-columns value creates a grid with 2 rows and 5 columns? #grid-container { width: 600px; display: grid; grid-template-columns: _____; }
200px auto auto auto 200px
What dates are selected? SELECT release_date FROM tv_show WHERE title = 'Arrow'; No dates 2012-10-10 2012-10-10 and 2009-04-09
2012-10-10
If the students table contains 10 students and 7 students have a GPA less than 3.0, how many names does the foreach loop output?$sql = "SELECT name FROM students WHERE gpa >= 3.0"; $statement = $pdo->query($sql); foreach ($statement as $row) { echo "<p>$row[name]</p>"; } 10 7 3
3
If a browser viewport is 300px high, how wide is an element with width:10vh?
30px
In the example on the right, what z-index value would make the green square appear on top of the orange and blue squares?
4
What number is returned by the following query?SELECT COUNT(*) FROM shows; 0 4 1
4
If #grid-container is modified, how wide is the second column? #grid-container { width: 600px; display: grid; grid-template-columns: 200px auto; }
400 px
"4e3" + 1 = ?
4001
If #grid-container is modified, how wide is the second column? #grid-container { width: 600px; display: grid; grid-template-columns: 20% auto; }
480 px
How many cars, machines, meters, and other IoT devices did Cisco, a major network equipment manufacturer, predict would be connected to the Internet in 2020?
49 BILLION
If a column uses the class col-lg-6, how much of the row does the column occupy when the browser is 1000px wide?
50%
What record must be added to the enroll table to give Tye a C in COMP-245? 555, 1001, C 555, 1004, C
555, 1004, C
$value: 20px - 15;
5px
How many columns does A span? <div class="row"> <div class="col-sm">A</div> <div class="col-sm">B</div> </div>
6
What is output? function addNumber($num) { global $sum; $sum += $num; } $sum = 0; addNumber(2); addNumber(5); echo $sum;
7
What is the grid's width if the browser is 800px wide? <div class="container"> <div class="row"> <div class="col-sm-10">A</div> <div class="col-sm-2">B</div> </div> </div>
768px
Change the text color to green for any text that is currently selected using the mouse. { color: green; }
::selection
Which element can create a button with an image?
<button>
What tag includes a picture in a web page?
<img>
The W3C Markup Validator indicates the HTML below has an error. What deprecated tag is causing the error? <!DOCTYPE html> <html lang="en"> <meta charset="UTF-8"> <title>Learning HTML</title> <body> <center>This page uses deprecated HTML.</center> </body> </html>
<center>
Which tag is a generic block tag without any implied meaning?
<div>
What output is produced by the PHP script?<h1>This is a test</h1> echo "This is only a test";
<h1>This is a test</h1> echo "This is only a test";
What tag is used for subchapter titles?
<h2>
Write an HTML fragment that creates a title for the fourth level of a document hierarchy. The title should be "Exquisite details"
<h4>Exquisite details</h4>
Start a table with the caption "store information".
<table><caption>store information</caption>
Create a table cell with datum of "open".
<td> open </td>
Which tag creates a text area widget?
<textarea>
Create a table cell with header of "hours".
<th> hours </th>
Create an empty table row with no content.
<tr> </tr>
What is missing from the parameterized SQL? $sql = "SELECT * from songs WHERE title = _____"; $stmt = $pdo->prepare($sql); $stmt = $pdo->bindValue(1, "Twist"); $stmt->execute();
?
Which media query matches devices with a 320px width screen that are in landscape mode?
@media screen and (device-width: 320px) and (orientation: landscape) { . . . }
If a browser viewport is 400px wide, how wide are the two inner <div> elements?<div width="300px"> <div width="50vw">A</div> <div width="50%">B</div> </div>
A = 200px, B = 150px
What default body font does Reboot use?
A sans-serif font
An <option> tag must have a value attribute.
FALSE
What is wrong with the SQL statement below? SELECT first_name from student "from" must be "FROM". The WHERE clause is missing. A terminating semicolon is missing.
A terminating semicolon is missing.
Assuming warnings and error messages are set to output to the browser, what would be displayed in the browser if require in the figure above was replaced with include, and color.php was not in the current directory? "That's so random!" A warning message only A warning message and fatal error message
A warning message and fatal error message
Visual clues that guide the user in figuring out how to use an app.
Affordances
What is the value of $_POST["team"] if the user selects Texas A&M University? Texas A&M University Aggies Impossible
Aggies
What dates are selected? SELECT release_date FROM tv_show WHERE NOT title = 'The Office'; No dates All dates 2012-10-10
All dates
What shows are selected by the following query?SELECT * FROM shows; All shows Arrow No shows
All shows
How do the changes below affect the web page? #container { display: flex; flex-direction: row; justify-content: center; } nav { flex: 0 1 auto; } main { flex: 0 1 auto; } aside { flex: 0 1 auto; }
All three flex items are default width and centered horizontally in the flex container.
How does the change below affect the web page? #container { display: flex; flex-direction: column; }
All three flex items are stacked on top of one another
What shows are selected by the following query?SELECT * FROM shows WHERE seasons <= 10 AND seasons >= 5; All shows Arrow and Parks and Recreation Grey's Anatomy
Arrow and Parks and Recreation
What shows are selected? SELECT * FROM tv_show WHERE seasons <= 10 AND seasons >= 6; All shows Arrow and Parks and Recreation Grey's Anatomy
Arrow and Parks and Recreation
What shows are selected? SELECT * FROM tv_show WHERE seasons = 6 OR release_date > '2013-01-01'; All shows Arrow and Parks and Recreation Arrow and The Blacklist
Arrow and The Blacklist
In what order are the shows retrieved by the following query?SELECT * FROM shows ORDER BY title; Grey's Anatomy, Arrow, The Blacklist, Parks and Recreation Arrow, Grey's Anatomy, Parks and Recreation, and The Blacklist The Blacklist, Parks and Recreation, Grey's Anatomy, Arrow
Arrow, Grey's Anatomy, Parks and Recreation, and The Blacklist
What is the last name output by the for loop?$names = ["Beth", "Lance", "Jose"]; for ($i = count($names) - 1; $i >= 0; $i--) { echo $names[$i], "\n"; }
Beth
What types of tags can be inside a block tag?
Both inline and block tags
Which of the media queries evaluate to true on a desktop browser that is 900px wide?
Both media queries.
Which table should be modified to add an instructor? course class
CLASS
Manages document presentation
CSS
The process of combining multiple style rules and resolving conflicts between those rules.
Cascading
The _____ data type is ideal for creating a column that stores a student's date of birth. DATETIME DATE
DATE
Document Object Model
DOM
An INSERT statement must name the table's columns.
FALSE
An inline style uses curly braces ({}).
FALSE
What is the title for the class with class_id 1002? English Composition European History Data Structures
English Composition
"123" !== "123"
FALSE
"123" === 123
FALSE
"bat" < "ball"
FALSE
2 > 10 || 1 > 2
FALSE
A developer that modifies an existing desktop website for a mobile device is using a progressive enhancement design strategy.
FALSE
A mobile user should never have access to the desktop version of a website when a mobile version is available
FALSE
A single INSERT statement can insert only one row into a table.
FALSE
A web hosting company that hosts websites for free is likely to provide services like automated backups, unlimited disk space, and 24-hour customer support.
FALSE
A website should serve a 3x image to a 2 DPR device even if a 2x image is available.
FALSE
According to StatCounter, mobile browsers will likely account for more web traffic than desktop browsers in the next year.
FALSE
An <h3> tag should be placed inside a <p> tag.
FALSE
What is selected by the following query?SELECT title, YEAR(releaseDate) FROM shows; Grey's Anatomy 2005 2005, 2012, 2013, 2009 Grey's Anatomy 2005, Arrow 2012, The Blacklist 2013, Parks and Recreation 2009
Grey's Anatomy 2005, Arrow 2012, The Blacklist 2013, Parks and Recreation 2009
What shows are selected? SELECT * FROM tv_show WHERE (seasons >= 6 AND seasons <= 10) OR release_date = '2005-03-27'; All shows Arrow and Parks and Recreation Grey's Anatomy, Arrow, and Parks and Recreation
Grey's Anatomy, Arrow, and Parks and Recreation
Which record contains correct values for a new history course? HIST-120, HIST, History and Culture of Africa, 3 HIST-211, COMP, History and Culture of Africa, 3 HIST-211, HIST, History and Culture of Africa, 3
HIST-211, HIST, History and Culture of Africa, 3
Specifies document structure
HTML
What is the current recommended version of the HTML standard?
HTML5
Which method will the browser use to communicate with the server?
HTTP GET request
What does the below code output?sayHello("Sam"); sayHello("Juan", "Hola"); function sayHello($name, $greeting = "Hello") { echo "$greeting, $name\n"; } Hello, Sam Hello, Juan Hello, Sam Hola, Juan Hola, Sam Hola, Juan
Hello, Sam Hola, Juan
What values are required to create a PDO object? Username and password only Hostname only Hostname, database name, username, and password
Hostname, database name, username, and password
Text that contains connections to other documents.
HyperText
Are human doctors or IBM's Watson more likely to keep up with new medical information in 2020?
IBM'S WATSON
Which browser lost the most market share between 2010 and 2015?
IE
A polyfill is code that creates a browser fallback for a feature if the web browser does not support that feature.
TRUE
Where should the data validation code be placed?if ($_POST["num"] == "") { echo "<p>You didn't type a number.</p>"; } Before if ($_SERVER["REQUEST_METHOD"] == "POST") { ... } Inside if ($_SERVER["REQUEST_METHOD"] == "POST") { ... } After if ($_SERVER["REQUEST_METHOD"] == "POST") { ... }
Inside if ($_SERVER["REQUEST_METHOD"] == "POST") { ... }
Part of a document that explains how to interpret or structure other parts of the document.
Markup
If Hamilton and Grit are the only books checked, what is the output?echo $_POST["books"][0]; Miranda Hamilton: The Revolution Miranda and Duckworth
Miranda
A web development approach that advocates first creating a reduced-feature version of a website for mobile users. Then, the developer creates a full-featured website for visitors using desktop computers.
Mobile first
Are columns A and B ever on the same row? <div class="row"> <div class="col-sm-9">A</div> <div class="col-sm-4">B</div> </div>
NO
Can two classes with the same course_id have a different number of credit hours?
NO
Must every primary key value be used in a foreign key?
NO
Does removing the keyword "only" from the media queries have any effect on the latest Chrome browser?
No
Is there a media type that specifically targets mobile devices?
No
Must media queries have at least one expression after the media type?
No
What dates are selected? SELECT release_date FROM tv_show WHERE title = 'The Office'; No dates 2012-10-10 2012-10-10 and 2009-04-09
No dates
Assuming the students table has only the three students in the animation above, what is output by the code below?$sql = "SELECT name FROM students WHERE stuId = 999"; $statement = $pdo->query($sql); $row = $statement->fetch(); if ($row) { echo $row["name"]; } else { echo "Not found"; } A PDOException is thrown. Sue Not found
Not found
Greys Anatomy 12 drama The Blacklist 5 drama Parks and Recreation 7 comedy Community 6 comedy Arrow 6 action ORDER BY seasons DESC ORDER BY genre ORDER BY genre DESC
ORDER BY genre DESC
Arrow 6 action Community 6 comedy Parks and Recreation 7 comedy The Blacklist 5 drama Greys Anatomy 12 drama ORDER BY seasons, genre ORDER BY genre, seasons ORDER BY genre, title
ORDER BY genre, seasons
The Blacklist 5 drama Arrow 6 action Community 6 comedy Parks and Recreation 7 comedy Greys Anatomy 12 drama ORDER BY title ORDER BY seasons ORDER BY genre
ORDER BY seasons
Arrow 6 action Community 6 comedy Greys Anatomy 12 drama Parks and Recreation 7 comedy The Blacklist 5 drama ORDER BY title ORDER BY seasons ORDER BY genre
ORDER BY title
What types of tags can be inside an inline tag?
Only inline tags
Referring to the figure above, what is $_SERVER["REQUEST_METHOD"] when the user clicks the "Guess" button a second time? GET POST
POST
A/an _____ executes SQL statements. RDBMS table
RDBMS
A web design approach that creates web pages that automatically move and resize parts depending on the display size and orientation.
Responsive Web Design
What is output when the user selects University of Arkansas?if ($_POST["team"] == "razorbacks") { echo "Woo Pig Sooie!"; } else { echo "Roll tide!"; } Woo Pig Sooie! Roll tide!
Roll tide!
Choose the correct call to the function below.function sayGoodbye($name) { echo "Goodbye, $name"; } sayGoodbye(); SAYGOODBYE("Sam"); say_goodbye("Sam");
SAYGOODBYE("Sam");
A dynamic web page might look different for two different users who are accessing the same page.
TRUE
A fluid layout widens to fit the browser's width.
TRUE
A pinch gesture usually zooms in and out of the web page
TRUE
A plug-in is often required to play media embedded in a web page using <embed> or <object>.
TRUE
Physical dimension in pixels of a device's screen.
Screen Size
A language describing the visual presentation of structured documents.
Style Sheet
!(2 > 10 && 5 > 0)
TRUE
"123" == 123
TRUE
("10" <=> "010") == 0
TRUE
("bat" <=> "ball") > 0
TRUE
2 > 10 || (3 % 2 != 2 && 5 > 0)
TRUE
A 1x image looks pixelated on a 2 DPR device.
TRUE
A 2x image will look the same as an equivalent 1x image on a 1 DPR device.
TRUE
A <fieldset> can group drop-down menus, buttons, and other widgets.
TRUE
A NULL value in the last_name column may indicate the faculty member has no last name. True False
TRUE
A VPS generally runs slower than a dedicated host.
TRUE
A developer can drag the image that looks like a mobile device to modify the accelerometer's alpha (rotation around the z-axis), beta (left-to-right tilt), and gamma (front-to-back tilt) values.
TRUE
A drop-down menu only allows one option to be selected.
TRUE
What shows are selected by the following query?SELECT * FROM shows WHERE seasons < 5; All shows Arrow and The Blacklist The Blacklist
The Blacklist
What shows are selected? SELECT * FROM tv_show WHERE seasons < 6; All shows Arrow and The Blacklist The Blacklist
The Blacklist
What is wrong with the SQL statement below? SELECT gpa --FROM student; The FROM clause is a comment. The WHERE clause is missing. gpa should be a table name.
The FROM clause is a comment.
What happens when the Modal is displayed and the user clicks the dark part of the screen outside of the Modal or presses the ESC key?
The Modal hides, and no Alerts are displayed.
What is wrong with the SQL statement below? SELECT first_name FROM student WHERE last_name = Smith; The identifier Smith must be surrounded by single quotes. first_name should be a table name. No students have the last name "Smith".
The identifier Smith must be surrounded by single quotes.
How will a website image that looks good on a standard display look like on a Retina display?
The image will look pixelated or blocky.
What is the value of $_GET["comment"] for the query string below?http://localhost/order.php?name=Bob&howmany=1&comment=This+is+a+gift This is a gift This+is+a+gift
This is a gift
777, 'Cruise', 'Tommy', 'COMP', '1999-01-20', TRUE Valid Invalid
VALID
999, 'Jones', 'Pam', 'ART', '2000-02-10', FALSE Valid Invalid
VALID
What organization defines web standards?
W3C
Must PHP statements be terminated by a semicolon?
YES
Must every foreign key value come from an existing primary key value?
YES
Should column classes always be nested inside of a row class?
YES
What argument is missing that makes the prepared statement select songs with artists that start with "Black"?$sql = "SELECT * from songs WHERE artist LIKE :artist"; $stmt = $pdo->prepare($sql); $stmt->execute(____);
["artist" => "Black%"]
What does the code output?$test = "adios"; echo "$test test";
adios test
Center each grid items vertically in the grid. : center;
align-content
What media type is used if no media type is specified?
all
Create a border for images where the alt attribute starts with test. <img src="pic1.jpg" width="50" height="50" alt="testing"> img[] { border: red 1px solid; }
alt^="test"
Which field cannot have duplicate values? dept_code class_id credit_hrs
class_id
What CSS class initially hides an Alert?
collapse
Allow the user to select some combination of red, blue, and green. <input type=" ">
color
Allow the user to enter a day, month, and year. <input type=" ">
date
Which statement is equivalent to const EMAIL = "[email protected]";?
define("EMAIL", "[email protected]");
Cause the text background of any div to be changed to light blue when the mouse hovers (moves over) any part of the div contents. { background-color: lightblue; }
div::hover
Which image is requested by a device with a 1.5 DPR?
dog-medium.jpg
Which image is requested by an old browser that doesn't understand the "srcset" attribute?
dog-small.jpg
What image is requested by a 1x device with width = 600px?
dog400.jpg
What image is requested by an old browser that does not know what the "sizes" and "srcset" attributes are?
dog400.jpg
What image is requested by a 2x device with width = 400px?
dog800.jpg
What image is requested by a 3x device with width = 800px?
dog800.jpg
What should A be replaced with? fac_id faculty table_name
faculty
In which file would you expect to find the hyperlink below? <a href="index.html">Home page</a>
family.html
What property makes the Main flex item wider than Nav and Aside?
flex-basis
The var_dump(variable) function outputs the data type of a variable. What is the output of the code below?$x = 1.23; var_dump($x); int(1.23) float(1.23) number(1.23)
float(1.23)
Which attribute inside the <label> tag is used to associate the label with a widget?
for
In which file would you expect to find the hyperlink below? <a href="../family.html">Family</a>
geocaching.html
To which server will the browser send the form data?
google.com
If all three squares are given the same z-index value of 5, which square appears on top?
green
What is the body's background color on an iPhone 8 in portrait mode with a viewport width of 375px?
green
Add a CSS declaration to #grid-container so the first row is 20 pixels tall and the second row is 30 pixels tall. : 20px 30px;
grid-template-rows
Cause all heading 1 text to be displayed with the bold font-weight attribute. { font-weight: bold; }
h1
What alteration to the CREATE TABLE statement prevents hire_date from having a NULL value? hire_date NOT NULL DATE, hire_date DATE NOT NULL,
hire_date DATE NOT NULL,
Assume a directory called "junk" is located in the hobbies directory. What relative URL would index.html use to link to a file called stuff.html in the junk directory?
hobbies/junk/stuff.html
Make the first letter uppercase in all list items. <li>Bread</li> { text-transform: uppercase; }
li::first-letter
Which statement generates a warning if util.php is not found? include "util.php"; require "util.php"; require "./util.php";
include "util.php";
The W3C Markup Validator warns that the HTML below is missing an attribute. What attribute is missing from <html>? <!DOCTYPE html> <html> <meta charset="UTF-8"> <title>Learning HTML</title> <body>A warning is not as serious as an error </body> </html>
lang
What should B be replaced with? fac_id, last_name, first_name, dept_code, hire_date last_name, first_name, dept_code, hire_date fac_id
last_name, first_name, dept_code, hire_date
What CSS style avoids left-floating elements? clear:
left
What CSS selector matches all list items?
li
What CSS selector matches all the <li> elements?
li
What CSS declaration sets the margin to have a uniform space of 20 pixels?
margin: 20px
Ensure that the date entered will not be greater than the end of 2025. <input type="date" ="2025-12-31">
max
Which input element attribute limits the number of characters the user can type in a text box or password field?
maxlength
What CSS Bootstrap class only affects an element's margin?
mb-0
Ensure that the temperature entered will not be less than -273.16. <input type="number" ="-273.16">
min
What data-target attribute value makes a button display a Modal?
modal's ID
Allow the user to enter a month, and year. <input type=" ">
month
Which attribute must be set to create a text box widget?
no attribute
Ensure the user types a valid number between 0 and 10. <input type=" " min="0" max="10">
number
What selector matches list items of ordered lists but not unordered lists?
ol > li
What selector matches ordered and unordered lists?
ol, ul
p { em { color: red; } }
p em { color: red; }
Add a red asterisk at the end of each paragraph. <p>Turn the switch on.</p> { content: "*"; color: red; }
p::after
What CSS declaration changes the right padding to be 10 pixels wide?
padding-right: 10px
What CSS declaration changes the top and bottom padding to be 20 pixels and right and left to be 30 pixels?
padding: 20px 30px
Ensure that the user types only one letter in the range A through F. <input type="text" ="[A-F]">
pattern
What is the text variant for the <span> element with the music id?
small-caps
A browser that is only capable of playing MP3 audio will download which file?
sound.mp3
Place an equal amount of horizontal space between each grid item, including the grid edges. justify-content: ;
space-evenly
Which media type targets users who are blind?
speech
Which image tag attribute specifies the image's URL?
src
Ensure that the value will change by multiples of 100. <input type= "range" ="100">
step
Cause all hyperlinks inside a table to be displayed with the bold font-weight attribute. { font-weight: bold; }
table a
Which is NOT a required attribute for images?
title
Set the text color for input buttons of type submit. <button type="submit">Submit</button> button[] { color: green; }
type="submit"
Set the input area width for any text input elements to 300 pixels. <input type="text" name="firstName"> input[] { width: 300px; }
type="text"
What CSS selector matches the span elements contained in <ul> elements?
ul span
Enter the command to select the music database.
use music;
What CSS Bootstrap class only affects an element's width?
w-50
