Chapter 1 Introduction to Computers and the Internet Section 1.1 Introduction 1.1 Which of the following statements is false?
a) There are more than two billion Internet users worldwide—approximately 30%
of the Earth’s population.
b) In use today are more than a billion general-purpose computers, and bil-
lions more embedded computers are used in cell phones, smartphones, tablet computers, home appliances, automobiles and more—and many of these devices are connected to the Internet.
c) Client-side programming technologies are used to build applications that are run
on the server.
d) Both (b) and (c)
ANS: c
1.2 Which of the following is a server-side programming technology used to build web pages?a)HTML5.b)CSS3.c)PHP.d)JavaScript.
ANS: c
1.3 Which of the following is most closely associated with Moore's Law?
a) Every year or two, the price of computers has approximately doubled.
b) Object-oriented programming uses less memory than previous
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- Chapter 1 Introduction to Computers and the Internet
c) Demand for communications bandwidth is decreasing dramatically each year.
d) Every year or two, the capacities of computers have approximately doubled
without any increase in price.
ANS: d.
1.2 The Internet in Industry and Research 1.4 The ________ allows people worldwide to donate their unused comput- er-processing power, harnessing unused capacity.
a) World Community Grid
- cloud computing
c) Internet TV
d) GPS
ANS: a
1.3 HTML5, CSS3, JavaScript, Canvas and jQuery 1.5 HTML (HyperText Markup Language) is a special type of computer language called a(n) ________ language designed to specify the content and structure of web pages (also called documents) in a portable manner.
- scripting
- markup
- object-oriented programming
- procedural programming
ANS: b
1.6 ________ is used to specify the presentation, or styling, of elements on a web page (e.g., fonts, spacing, sizes, colors, positioning).
a) HyperText Markup Language (HTML5)
b) Cascading Style Sheets (CSS)
c) JavaScript
d) PHP
ANS: b
1.7 _______ is a language that helps you build dynamic web pages (i.e., pages that can be modified “on the fly” in response to events, such as user input, time changes and more) and computer applications.
a) XML
b) CSS3
c) HTML5
d) JavaScript
ANS: d
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1.8 ________ simplifies JavaScript programming by making it easier to manipulate a web page’s elements and interact with servers in a portable manner across various web browsers.
- jQuery
b) JavaScriptQuery
c) CSS3
d) PHP
ANS: a
1.4 Demos None.
1.5 Evolution of the Internet and World Wide Web
1.9 ________ is a technique in which digital data is sent in small bundles that contain address, error-control and sequencing information.
a) TCP/IP
b) Routing
c) Packet switching
d) Bandwidth
ANS: c
1.10 The protocol for communicating over the ARPANET became known as ________.
a) TCP (Transmission Control Protocol)
- packet switching
- the Internet
d) JavaScript
ANS: a
1.11 Each computer on the Internet has a unique ________.
- e-Mail address
b) Transmission Control Protocol
c) IP address
d) Both (b) and (c)
ANS: c
1.12 The latest IP standard is ________
a) Internet Protocol version 4 (IPv4)
b) Internet Protocol version 6 (IPv6)
c) Internet Protocol version 5 (IPv5)
d) None of the above.
ANS: b
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- Chapter 1 Introduction to Computers and the Internet
1.13 ________ wrote communication protocols to form the backbone the World Wide Web.
a) Dale Dougherty
b) Bill Gates
c) Marc Andreessen
d) Tim Berners-Lee
ANS: d
1.14 URL is an acronym for which of the following?
a) Uniform Resource Locator
b) Uniform Record Locator
c) Universal Resource Location
d) Uniform Resource Location
ANS: a
1.6 Web Basics 1.15 When the user clicks a hyperlink, a ________ locates the requested web page and sends it to the user’s web browser.
a) URL
- web server
- host
- packet
ANS: b
1.16 An Internet ________ maintains a database of hostnames and their corresponding IP addresses and performs the translations automatically.
a) Domain Name System (DNS) server
- host
- address
d) Uniform Resource Identifier (URI)
ANS: a
1.17 The ________ standard specifies data formats, which programs can use to interpret data correctly.
a) Data Translation Standard (DTS)
b) Uniform Resource Locator (URL)
c) HTML5
d) Multipurpose Internet Mail Extensions (MIME)
ANS: d
1.18 The two most common HTTP request types (also known as request methods) are ________ and ________.
- query, post
- get, post
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