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| author | mo khan <mo@mokhan.ca> | 2025-09-07 14:44:03 -0600 |
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| committer | mo khan <mo@mokhan.ca> | 2025-09-07 14:44:03 -0600 |
| commit | 92bbabf5f2dbbb7f8f18cbc5d568ff8b6a4f9f2e (patch) | |
| tree | 94eba6d283aaebfd1ec1430183a54682ff12595c /content/Content/03_StudyGuideActivitiesAndAssessments/03_Unit02/Section 4 Domain Name System.html | |
| parent | 6d7e70c7320ea9fcc503c8ff31e0176e7fe97b82 (diff) | |
chore: add course content
Diffstat (limited to 'content/Content/03_StudyGuideActivitiesAndAssessments/03_Unit02/Section 4 Domain Name System.html')
| -rw-r--r-- | content/Content/03_StudyGuideActivitiesAndAssessments/03_Unit02/Section 4 Domain Name System.html | 81 |
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diff --git a/content/Content/03_StudyGuideActivitiesAndAssessments/03_Unit02/Section 4 Domain Name System.html b/content/Content/03_StudyGuideActivitiesAndAssessments/03_Unit02/Section 4 Domain Name System.html new file mode 100644 index 0000000..4c4ee35 --- /dev/null +++ b/content/Content/03_StudyGuideActivitiesAndAssessments/03_Unit02/Section 4 Domain Name System.html @@ -0,0 +1,81 @@ +<!DOCTYPE html> +<html lang="en"><head> + <!-- Required meta tags --> + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> + + <!-- Bootstrap CSS --> + <link rel="stylesheet" href="/shared/LCS_HTML_Templates/Athabasca_Template_2021/Template_Files/sample_pages/../../_assets/thirdpartylib/bootstrap-4.3.1/css/bootstrap.min.css"> + <!-- Font Awesome CSS --> + <link rel="stylesheet" href="/shared/LCS_HTML_Templates/Athabasca_Template_2021/Template_Files/sample_pages/../../_assets/thirdpartylib/fontawesome-free-5.9.0-web/css/all.min.css"> + <!-- Template CSS --> + <link rel="stylesheet" href="/shared/LCS_HTML_Templates/Athabasca_Template_2021/Template_Files/sample_pages/../../_assets/css/styles.min.css"> + <link rel="stylesheet" href="/shared/LCS_HTML_Templates/Athabasca_Template_2021/Template_Files/sample_pages/../../_assets/css/custom.css"> + <title>Learning Objectives</title> +</head><body><div class="container-fluid"> +<div class="row"> +<div class="offset-sm-1 col-sm-10"> +<h2>Learning Objectives</h2> +<p>After successfully completing this section, you should be able to</p> +<ol> +<li>define the domain name system (DNS) and describe what it does.</li> +<li>explain how DNS works and why it is important to the Internet.</li> +</ol> +<h2>Learning Tasks</h2> +<p>Required:</p> +<ol> +<li>Watch the <a href="03_Documents02/comp347u2s4.pdf?isCourseFile=true" target="_self">slideshow</a> for this section.</li> +<li>Study Section 2.4, DNS—The Internet’s Directory Service, in the textbook.</li> +</ol> +<h2>Terms and Topics</h2> +<div class="row"> +<div class="col-11"> +<p><strong>Section 4 – Domain Name System </strong></p> +</div> +<div class="col-1"></div> +</div> +<div class="row"> +<div class="col-6"> +<p>DNS servers<br>Host aliasing<br>Canonical hostname<br>Mail server aliasing<br>Loading distribution among replicated servers<br>DNS design strategies<br>Problem with a centralized design<br>Single point of failure<br>Traffic volume<br>Distant centralized database<br>Maintenance of DNS servers<br>The hierarchy of Distributed DNS servers<br>Root DNS servers</p> +</div> +<div class="col-6"> +<p>Top-level domain (TLD) servers<br>Authoritative DNS servers<br>Local DNS server<br>Interaction of the various DNS servers<br>Recursive and iterative queries (to DNS servers)<br>DNS caching<br>DNS records and message<br>Resources Records (RRs)<br>Inserting records into DNS database<br>Registrar<br>ICANN</p> +</div> +</div> +<h2>Leading Questions</h2> +<ol> +<li>What is DNS? What is DNS used for?</li> +<li>How does the Domain Name System work?</li> +<li>Why is DNS so important for the Internet community?</li> +<li>In DNS, what is host aliasing? Why is it needed?</li> +<li>What is load distribution in DNS?</li> +<li>What problems does a centralized DNS design have?</li> +<li>Why is a distributed database important for DNS?</li> +<li>What are root DNS servers? What roles do they play?</li> +<li>What is a top-level domain (TLD) server?</li> +<li>What are authoritative DNS servers?</li> +<li>What are so-called local DNS servers?</li> +<li>What are recursive queries and iterative queries in DNS?</li> +<li>Why is DNS caching needed?</li> +<li>What are resource records (RRs) in DNS? What is the format of resource record?</li> +<li>What are DNS messages? What is the format?</li> +<li>What can the nslookup command do for you?</li> +<li>What roles does ICANN do?</li> +</ol> +</div> +<div class="col-12"><footer><!-- <p>© [Client] [Year]</p> --> <!-- <p><img src="/shared/LCS_HTML_Templates/Athabasca_Template_2021/_assets/img/logo.png" alt="logo"></p> --></footer></div> +</div> +</div> +<p> +<script src="/shared/LCS_HTML_Templates/Athabasca_Template_2021/Template_Files/sample_pages/../../_assets/thirdpartylib/jquery/jquery-3.4.1.min.js"> + </script> +<script src="/shared/LCS_HTML_Templates/Athabasca_Template_2021/Template_Files/sample_pages/../../_assets/thirdpartylib/popper-js/popper.min.js"> + </script> +<script src="/shared/LCS_HTML_Templates/Athabasca_Template_2021/Template_Files/sample_pages/../../_assets/thirdpartylib/bootstrap-4.3.1/js/bootstrap.min.js"> + </script> +</p> +<!-- Template JavaScript --> +<p> +<script src="/shared/LCS_HTML_Templates/Athabasca_Template_2021/Template_Files/sample_pages/../../_assets/js/scripts.min.js"></script> +<script src="/shared/LCS_HTML_Templates/Athabasca_Template_2021/Template_Files/sample_pages/../../_assets/js/custom.js"></script> +</p></body></html>
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