16
AR WEBDESIGN II (Course 492650) Correlated to Lawrenceville Press - A Guide to Web Development Using Adobe Dreamweaver CS3 Internet Business Foundations Unit 1: Information Technology and the Internet 1.1 Define terminology 1.1.1 Prepare a list of terms with definitions 30-33 1.2 Identify job roles in the IT industry, including the responsibilities, tasks and skills they require 1.2.1 Examine individual job roles within the IT industry and the IT profession as a whole 26-28, 35 (Review Questions 39-40), 37 (Exercise 5), 39 (Exercise 13) 1.3 Identify the infrastructure required to access the Internet, including hardware and software components 1.3.1 Compare and contrast the client and a server 6, 10, 30, 334-335, 338, 340 (Review Question 17) 1.3.2 Explain Internet history and define current protocols, including: IPv4, IPv6, and related protocols 10, 69-70 (Exercises 6, 10) 1.3.3 Classify hardware and software connection devices and their uses, including: various types of modems such as analog, ISDN/ADSL, and cable 5-7, 10, 29-30, 34-35 (Review Questions 16-17, 41e) 1.4 Define important Internet communications protocols and their roles in delivering basic Internet services 1.4.1 Explain the purpose of remote access protocols, including: Point-to- Point, Point-to-Point Protocol over Ethernet Not addressed in this text. 1.4.2 Relate various types of Internet bandwidth technologies (link types), including: T and E carriers, fractional T and E lines, command DSL/ADSL and cable speeds 10, 30 1.4.3 Map protocols to specific business services (e.g., SMTP, IMP, and POP# to 12-13, 31-32, 36 (Exercise 1), 38 (Exercise 9), 357

Internet Business Foundations Unit 1: Information

  • Upload
    others

  • View
    2

  • Download
    0

Embed Size (px)

Citation preview

AR WEBDESIGN II (Course 492650) Correlated to Lawrenceville Press - A Guide to Web Development Using Adobe Dreamweaver CS3

Internet Business Foundations Unit 1: Information Technology and the Internet 1.1 Define terminology 1.1.1 Prepare a list of terms with

definitions 30-33

1.2 Identify job roles in the IT industry, including the responsibilities, tasks and skills they require

1.2.1 Examine individual job roles within the IT industry and the IT profession as a whole

26-28, 35 (Review Questions 39-40), 37 (Exercise 5), 39 (Exercise 13)

1.3 Identify the infrastructure required to access the Internet, including hardware and software components

1.3.1 Compare and contrast the client and a server

6, 10, 30, 334-335, 338, 340 (Review Question 17)

1.3.2 Explain Internet history and define current protocols, including: IPv4, IPv6, and related protocols

10, 69-70 (Exercises 6, 10)

1.3.3 Classify hardware and software connection devices and their uses, including: various types of modems such as analog, ISDN/ADSL, and cable

5-7, 10, 29-30, 34-35 (Review Questions 16-17, 41e)

1.4 Define important Internet communications protocols and their roles in delivering basic Internet services

1.4.1 Explain the purpose of remote access protocols, including: Point-to-Point, Point-to-Point Protocol over Ethernet

Not addressed in this text.

1.4.2 Relate various types of Internet bandwidth technologies (link types), including: T and E carriers, fractional T and E lines, command DSL/ADSL and cable speeds

10, 30

1.4.3 Map protocols to specific business services (e.g., SMTP, IMP, and POP# to

12-13, 31-32, 36 (Exercise 1), 38 (Exercise 9), 357

e-mail; HTTP and HTTPS to Web browsers; FTP to file transfer: NNTP to news servers)

1.5 Identify the basic principles of the Domain Name System (DNS)

1.5.1 Explain the purpose and structure of the Domain Name System (DNS)

357

1.5.2 Classify Internet domain names, including: top-level or original domains (edu, com, net, gov, org), country-level domains (uk, ch, tv) and newer domains (biz, info)

12, 32, 35 (Review Question 41f)

Internet Business Foundations Unit 2: Web Browsing 2.1 Define terminology 2.1.1 Prepare a list of terms with

definitions 11-13, 30-33, 41

2.2 Identify the functions of Web browsers, and use them to access the World Wide Web and other computer resources

2.2.1 Analyze a URL/URI, its functions and components, and the different types of URLs (relative and absolute)

12, 33-34, 92-93

2.2.2 Navigate between and within Web sites and use multiple browser windows

13-20

2.2.3 Differentiate between pop-up and pop-under windows

Opportunities to address this standard can be found on the following pages: 329, 333, 348 (Exercise 9), 373

2.2.4 Illustrate the function of Secure Sockets Layer, Transport Layer Security, and other encryption methods in securing communication for various protocols (e.g., FTP/FTPS, HTTP/HTTPS, IMP/IMPS, POP3/POP3S)

23, 366, 368

2.2.5 Relate the following from a business standpoint: intranet, extranet, Internet, webinar

9-12, 27-28, 31, 34 (Review Question 14), 359

2.2.6 Configure common browser preferences, including: fonts, home pages, Bookmarks/Favorites, history, browser, cache, image loading, security settings

47, 216

2.2.7 Discover the concept of caching and its implications, including: client caching, cleaning out client-side cache, Web page update settings in browsers

3

Internet Business Foundations Unit 3: Multimedia on the Web 3.1 Define terminology 3.1.1 Prepare a list of terms with

definitions 42

3.2 Identify file formats 3.2.1 Illustrate document and multimedia file formats, including PDF, RTF, PostScript

42, 61, 64

3.3 Identify plug-ins and their file name extensions

3.3.1 Examine common plug-ins, add-ons, and viewers (e.g., Adobe Acrobat, Macromedia Flash and Shockwave, RealNetworks RealPlayer, Windows Media Player, Apple QuickTime) and identify their common file name extensions

61, 265-266, 272, 281, 294, 297-298, 354

Internet Business Foundations Unit 4: Database and Web Search Engines 4.1 Define terminology 4.1.1 Prepare a list of terms with

definitions 18, 30-32, 336, 338, 363

4.2 Use different types of Web search engines effectively

4.2.1 Conduct searches using Boolean operators and keywords

18-19

4.2.2 Distinguish among search engines and information portals

11, 18, 29, 32, 34-36 (Review Questions 19, 24, Exercise 3)

4.2.3 Illustrate unexpected Web search results

19, 37-38 (Exercises 5-9)

4.2.4 Explain the meta search engines and spiders ranking techniques

18, 363, 370 (Review Questions 21, 25j)

4.2.5 Evaluate Internet resources and verify factuality

20-21, 29, 37-38 (Exercises 6, 8-9)

4.3 Recognize essential database concepts

4.3.1 Distinguish between relational and no-relation database

Opportunities to address this standard can be found on the following pages: 335-336, 338

4.3.2 Examine common relational database concepts, including: table, row, record, column, field, data value, join

Opportunities to address this standard can be found on the following pages: 335-336, 338

4.3.3 Analyze relationships between tables, including: one-to-one, one-to-many, many-to-many

Opportunities to address this standard can be found on the following pages: 336

4.3.4 Explain the purpose of SQL in querying databases

Not addressed in this text.

Internet Business Foundations Unit 5: E-Mail 5.1 Define terminology 5.1.1 Prepare a list of terms with

definitions 12-13, 24-26, 30-33

5.2 Show how to use mail clients to send simple messages and files to other Internet users

5.2.1 Configure an e-mail client to send and receive e-mail, including: SMTP, POP3, IMAP, Web-based e-mail support

Opportunities to address this standard can be found on the following pages: 12

5.2.2 Compare MIME, S/MIME and PGP/GPG

Not addressed in this text.

5.2.3 Examine e-mail components (e.g., signature, blind-copy, attachment,

12, 25, 39 (Exercise 12)

forwarding, reply, automatic reply) 5.2.4 Demonstrate client-side filters to

combat SPAM 13

5.2.5 Identify ways that e-mail is used in the workplace (e.g., e-mail thread, e-mail etiquette)

21, 29, 34-35 (Review Questions 21, 28)

5.2.6 Examine ways that wireless devices interface with network devices using physical and network interfaces, and protocols such as Wireless Application Protocol

6-7

Internet Business Foundations Unit 6: Internet Services and Tools 6.1 Define terminology 6.1.1 Prepare a list of terms with

definitions 30-33, 160, 358

6.2 Define additional networking and Internet services

6.2.1 Relate use and purpose of newsgroups

20

6.2.2 Relate use and purpose of FTP 13, 31, 358 6.2.3 Compare and contrast Concurrent

Versions System (CVS) and Virtual Network Computing (VNC)

Not addressed in this text.

6.2.4 Relate use and purpose of LDAP Not addressed in this text. 6.2.5 Demonstrate how to manage files

using common compression software and techniques (e.g., zip/WinZip, gzip, bzip2, RAR, compress)

8, 160, 199, 201 (Review Question 5), 297, 379-380

Internet Business Foundations Unit 7: Internet Security 7.1 Define terminology 7.1.1 Prepare a list of terms with

definitions 9, 23, 30-34, 366, 368

7.2 Identify security issues related to Internet clients (e.g., Web browsers, e-

7.2.1 Analyze the three major types of encryption

23, 366, 368

mail, instant messaging) in the workplace, including: certificates, malware, illicit servers, viruses 7.2.2 Compare ways that

authentication, digital certificates, encryption and firewalls provide Web security

9, 23, 25, 28, 35 (Review Question 37), 366, 368

7.2.3 Compare a computer virus, worm, and spyware and explain how to protect your computer from attacks

22, 25, 29, 35 (Review Questions 37, 41), 39 (Exercise 12), 263 (Exercise 8), 366

7.2.4 Explain the functions of patches and updates to client software and associated problems, including desktop security, virus protection, encryption levels, Web browsers, e-mail clients

22, 25, 366

7.2.5 Explain security-related ethical and privacy issues faced by IT professionals

22-26, 29, 35 (Review Questions 32-34, 38), 366, 367, 371 (Exercise 4)

7.2.6 Relate basic copyright issues Internet Business Foundations Unit 8: IT Project Management

8.1 Define terminology 8.1.1 Prepare a list of terms with definitions

24-26

8.2 Relate project management concepts and terms to the IT profession

8.2.1 Classify the components of the project triangle

Not addressed in this text.

8.2.2 Outline the project life cycle and phases

Not addressed in this text.

8.2.3 Relate IT-based concerns to organizational policies and rules, and identify rights and responsibilities of IT workers

Opportunities to address this standard can be found on the following pages: 22-23, 26, 29, 35 (Review Questions 32-34, 38)

8.2.4 Use the concept of Return on Investment (ROI) to justify IT-based expenses in relation to a budget

Not addressed in this text.

Site Development Foundation Unit 1: Introduction to Web Site Development 1.1 Define terminology 1.1.1 Prepare a list of terms with

definitions 159-160, 336, 354

1.2 Identify technologies for enhancing the user's Web experience, including: programming languages, multimedia technologies

1.2.1 Analyze the uses and benefits of various document and multimedia file formats, including: PDF, RTF, PostScript, EPS, MOV, MPEG, streaming media, non-streaming media

159, 170, 197, 201 (Review Questions 1-6), 239, 274, 379

1.2.2 Examine the following Web-related mechanisms for audience development (i.e., attracting and retaining an audience): push technology, pull technology, visitor tracking

365, 372 (Exercise 5)

1.2.3 Identify common proprietary Web site and page enhancement elements, including: Macromedia Flash and Shockwave

2, 169, 354

1.2.4 Evaluate the benefits and drawbacks of proprietary technologies such as Flash, Shockwave, movie formats

Opportunities to address this standard can be found on the following pages: 2, 159, 169, 354

1.3 Identify essential Web site navigation issues, and ensure page/site accessibility

1.3.1 Test and validate Web documents 43, 353-357, 371 (Exercise 1)

1.3.2 Estimate download time for Web pages

350-351, 371 (Exercise 1)

1.4 Demonstrate knowledge of languages 1.4.1 Examine Gateway Interface (CGI) 334

commonly used to provide database connectivity to Web sites

methods, including: .Net, JavaServer Pages (JSP), Server-Side JavaScript (SSJS), Active Server Pages (ASP), PHP Hypertext Preprocessor (PHP)

1.4.2 Compare the relationship of SQL to Internet-enabled databases

Not addressed in this text.

1.4.3 Compare database connectivity technologies, including: Open Database Connectivity (ODBC), Java Database Connectivity (JDBC)

335-336

Site Development Foundation Unit 2: Site Development Essentials 2.1 Define terminology 2.1.1 Prepare a list of terms with

definitions 24-25, 116-118, 233

2.2 Identify steps in the Web site planning and development process

2.2.1 Demonstrate the impact of color combinations to various audiences and culture

Opportunities to address this standard can be found on the following pages: 233

2.2.2 Evaluate Web page design and layout

115, 117-125, 128-129, 141 (Review Question 3), 157 (Exercises 8-9)

2.2.3 Document and communicate a Web site plan to technical and non-technical members of the organization

117-122, 157 (Exercises 8-9), 389 (Entrepreneur Website Project), 391 (Group Project – School Website)

2.2.4 Categorize fundamentals of project management, including: major stages of Web design/development project cycle

Not addressed in this text.

2.3 Identify essential Web site navigation issues, and ensure page/site accessibility

2.3.1 Verify compliance with government and industry accessibility standards, including: W3C Web Accessibility Initiative (WAI), U.S. Government Section 508, Americans

55, 80, 161, 218

with Disabilities Act (ADA) 2.3.2 Verify Web site usability, view-

ability and browser compatibility 351-357, 371 (Exercise 1), 389 (Entrepreneur Website Project)

2.3.3 Address diversity and corporate/organizational culture when communicating your message

116-117, 122-123, 143 (Exercise 1), 155 (Exercise 7), 157 (Exercises 8-9), 389 (Entrepreneur Website Project), 391 (Group Project – School Website)

2.3.4 Analyze legal issues related to a Web site, including: trade-marking, licensing, copyrighting, licensing copyrighted materials, scope of copyright, reach of copyright, copyrighting process, copyright infringement and consequences

23-25, 29-30, 35 (Review Questions 37), 45, 63, 69 (Exercise 7), 135, 138, 142 (Review Questions 24, 25m)

Site Development Foundation Unit 3: XHTML Coding Basics 3.1 Define terminology 3.1.1 Prepare a list of terms with

definitions 70 (Exercise 11), 220

3.2 Demonstrate knowledge required to create a Web page

3.2.1 Relate the history of markup languages to current techniques and technologies, including: SGML, previous versions of HTML and XML

42, 70 (Exercise 11)

3.2.2 Classify the format and various versions of HTML, including: HTML 4.01, Extensible HTML (XHTML)

42, 70 (Exercise 11)

3.2.3 Create HTML tags to format paragraphs and text

47, 53, 63, 65 (HTML Tags), 67-70 (Exercises 1-11), 220, 230

3.2.4 Explain the use of cascading style sheets (CSS)

218-222, 243-250

Site Development Foundation Unit 4: Coding Graphic Elements 4.1 Define terminology 4.1.1 Prepare a list of terms with 48, 56, 233

definitions 4.2 Identify steps in the Web site planning and development process

4.2.1 Apply the Web-safe color palette 233-236, 241, 254-263 (Exercise 1-9)

4.3 Add images and graphical formatting to HTML files

4.3.1 Incorporate graphical images into HTML pages

55, 67 (Exercise 2)

4.3.2 Compare the uses and benefits of various graphic file formats, including: GIF, GIF89a, JPEG, PNG, TIFF, and BMP

55, 159, 201 (Review Question 1)

4.3.3 Create lines, colors and tiled background images in HTML

48-49, 56-57, 67-68 (Exercises 1-5)

Site Development Foundations Unit 5: Hyperlinks 5.1 Define terminology 5.1.1 Prepare a list of terms with

definitions 52, 199, 251

5.2 Demonstrate knowledge required to create a Web page

5.2.1 Create HTML hyperlinks for text, images, local files and remote sites (internal and external links)

52-55, 67-69 (Exercises 1-5), 93-94, 237-238, 255 (Exercise 1), 261 (Exercise 6)

5.2.2 Create and link client-side image maps

163-167, 207 (Exercise 3), 211 (Exercise 5)

Site Development Foundation Unit 6: Tables 6.1 Define terminology 6.1.1 Prepare a list of terms with

definitions 64, 99

6.2 Demonstrate knowledge required to create a Web page

6.2.1 Design and format HTML tables to present information in an organized way

52-55, 78-84, 104-114 (Exercises 1-8)

Site Development Foundations Unit 7: Web Forms 7.1 Define terminology 7.1.1 Prepare a list of terms with

definitions 338

7.2 Demonstrate knowledge required to create a Web page

7.2.1 Create HTML tags for Web form fields (e.g., text box, check box, radio button)

323-334, 341-348 (Exercises 1-9)

Site Development Foundation Unit 8: Frames 8.1 Define terminology 8.1.1 Prepare a list of terms with

definitions Not addressed in this text.

8.2 Create HTML frames and a form that accepts user input

8.2.1 Explain the purpose and use of the <frame>, <frameset>, <noframe>, and <iframe>

Not addressed in this text.

8.2.2 Create code to target HTML frames

Not addressed in this text.

8.2.3 Create borderless HTML frames Not addressed in this text. Site Development Foundations Unit 9: GUI HTML Editors

9.1 Define terminology 9.1.1 Prepare a list of terms with definitions

76

9.2 Discuss uses of GUI-based HTML editing software to create Web pages

9.2.1 Evaluate a GUI HTML editor according to the W3C Authoring Tool Accessibility Guidelines

Opportunities to address this standard can be found on the following pages: 42, 55, 161, 218

9.2.2 Use font and page appearance options in a GUI HTML editor

215, 227-230, 235-236

9.2.3 View source code and preview Web pages in a browser

77, 211 (Exercise 6), 213 (Exercises 8-9), 261 (Exercise 6), 305-309 (Exercises 1-3), 346-348 (Exercises 4-9), 352-353, 371 (Exercise 1)

9.2.4 Create HTML tables using a GUI HTML editor

80-86, 104-114 (Exercises 1-8)

Site Development Foundations Unit 10: Advanced Web Technologies 10.1 Define terminology 10.1.1 Prepare a list of terms with

definitions 357

10.2 Identify the benefits and drawbacks of running your own Web server versus using a service provider

10.2.1 Investigate costs associated with placing and developing your own server versus an Application Service Provider

Opportunities to address this standard can be found on the following pages: 357, 367, 370 (Review Questions 15, 17), 389 (Entrepreneur Website Project), 392

(Travel Agency Website Project) 10.2.2 Distinguish among dedicated

hosting, co-location and virtual servers 357, 367, 368

10.2.3 Examine relevant information required to publish a site (e.g., account information, passwords, IP addresses

357-360, 371 (Exercise 1)

Site Development Foundations Unit 11: E-Commerce Practices 11.1 Define terminology 11.1.1 Prepare a list of terms with

definitions 11-12, 30, 315-316, 338, 366, 375

11.2 Define electronic commerce (ecommerce) and related technologies and concepts necessary to develop a secure, useful interface, (i.e., storefront)

11.2.1 Relate e-commerce terms and concepts, including: EDI, business-to-business (B2B), business-to-consumer (B2C), Electronic Funds Transfer, Electronic Data Interchange (EDI), Open Trading Protocol (OTP), merchant systems, relationship management, customer self-service, Internet marketing, SET (Secure Electronic Transactions)

11-12, 30, 34 (Review Question 19), 36 (Exercise 3), 109-111 (Exercise 4), 315-316, 338, 340 (Review Questions 5-6)

11.2.2 Compare payment models used in ecommerce, including payment gateways

375

11.2.3 Illustrate the importance of SSL/TLS to a transaction that contains sensitive information

366

Networking Technology Foundations Unit 1: Introduction to Networking 1.1 Define terminology 1.1.1 Prepare a list of terms with

definitions 6-7, 9-10, 30-32, 357

1.2 Demonstrate knowledge of basic data communications components

1.2.1 Illustrate basic network topologies (e.g., ring, mesh)

6-7, 30-32, 34-35 (Review Questions 10, 41), 36 (Exercise 1)

1.2.2 Analyze the Open Systems Interconnection reference model (OSI/RM) in terms of packet creation

Not addressed in this text.

1.2.3 Explain the nature, purpose and operation essentials of Transmission Control Protocol/Internet Protocol (TCP/IP)

10, 32, 357, 367-368 (Chapter Summary, Vocabulary), 370 (Review Questions 14)

1.2.4 Compare local area network (LAN) and wide area network (WAN)

5-7, 36 (Exercise 1)

1.2.5 Classify the core network components and how they relate to each other, including: routers, network access points (NAPs), backbone networks, hub, switch

6-7, 9-10, 31-32, 34 (Review Question 10)

1.2.6 Distinguish among common cable types used in networking (e.g., CAT5, CAT6, crossover)

Not addressed in this text.

1.2.7 Compare Ethernet and Token Ring 7 1.2.8 Examine common TCP/IP

network parameters, including: IP addresses (static versus DHCP), subnet mask, default gateway, DNS information

357

1.3 Discuss configuring and troubleshooting wireless networks

1.3.1 Illustrate connecting wireless networks to Foundation standard wired LANs

7

1.3.2 Explain security issues with wireless networks

Opportunities to address this standard can be found on the following pages: 7

Networking Technology Foundations Unit 2: TCP/IP Suite and Internet Addressing 2.1 Define terminology 2.1.1 Prepare a list of terms with 357

definitions 2.2 Identify the relationship between IP addresses and domain names, including: assignment of IP addresses with in a subnet

2.2.1 Explain IP addressing and the concept of uniqueness, including IP address, subnet mask

357

2.2.2 Show how IP address classes are used on the Internet and determine valid IP addresses

Opportunities to address this standard can be found on the following pages: 357

2.2.3 Determine default subnet masks and describe the ANDing process

Not addressed in this text.

2.2.4 Examine common TCP/IP network parameters, including: IP addresses (static versus DHCP), subnet mask, default gateway, DNS information

357

2.2.5 Explain basic IPv6 concepts Not addressed in this text. 2.3 Identify common performance issues affecting Internet clients, including: analysis, diagnosis

2.3.1 Evaluate issues to consider when troubleshooting IP-enabled systems, including: DNS/name resolution, correct default gateway and subnet mask, hosts file configuration, DHCP versus static IP configuration

Opportunities to address this standard can be found on the following pages: 357

2.3.2 Select when to use various diagnostic tools for troubleshooting and resolving Internet problems, including: ping, winipcfg, ipconfig, route, arp, traceroute, netstat, network analyzers (packet sniffers)

Not addressed in this text.

Networking Technology Foundations Unit 3: Internetworking Servers 3.1 Define terminology 3.1.1 Prepare a list of terms with

definitions 10-11, 13, 30-33, 357

3.2 Identify the functions and components of network servers commonly used on the Internet

3.2.1 Distinguish between network servers

6, 10, 13, 21, 27, 30-32

3.2.2 Relate the functions and features of common Internet-based services, and identify protocols used by each, including: file, print, HTTP, proxy, caching, mail, mailing list, instant messaging, media, DNS, FTP, news, certificate, directory, catalog, fax, transaction, mirrored, UNIX

11-13, 30-36, 38, 357

Networking Technology Foundations Unit 4: Hardware & Operating System Maintenance 4.1 Define terminology 4.1.1 Prepare a list of terms with

definitions 3

4.2 Identify basic hardware and system maintenance for network systems

4.2.1 Demonstrate connecting common peripherals, including: parallel, serial, USB, FireWire devices (e.g.., printers, hard drives, scanners), CD-ROM/DVD

2-3

4.2.2 Compare common file systems (e.g., NTFS, FAT, Ext3, ReiserFS)

Opportunities to address this standard can be found on the following pages: 5

4.2.3 Demonstrate the use of file system management tools, including: convert, Chkdsk, Disk Cleanup, Disk Defragmentor

Opportunities to address this standard can be found on the following pages: 4

4.2.4 Demonstrate file management including: backup, delete, restore

16-17

Networking Technology Foundations Unit 5: Network Security & IT Career Opportunities 5.1 Define terminology 5.1.1 Prepare a list of terms with

definitions 9, 31, 366, 368

5.2 Identify common Internet security and availability issues

5.2.1 Analyze network attack types and procedures to counter each attack type

366, 368

5.2.2 Evaluate benefits and drawbacks of symmetric, asymmetric and hash encryption

Opportunities to address this standard can be found on the following pages: 366

5.2.3 Illustrate Virtual Private Networks (VPNs) and the purposes of remote access protocols, including: Point-to-Point Tunneling Protocol (PPTP), Layer 2 Tunneling Protocol (L2TP)

Not addressed in this text.

5.2.4 Distinguish among the following security methods: DMZ, (including dual-homed and triple-homed firewalls), VLAN, intranet, extranet, PKI

9, 28, 31, 34 (Review Question 14)

5.3 Manage career opportunities in the IT industry

5.3.1 Demonstrate using Internet technology to obtain employment

37 (Exercise 5), 39 (Exercise 13)