Exam Objectives Covered:
- 3.4 Given a scenario, implement IPv4 and IPv6 network services.
- 5.5 Given a scenario, use the appropriate tool or protocol to solve networking issues.
Links:
- TestOut Courseware: https://labsimapp.testout.com/
Overview:
The Domain Name System (DNS) is critical for locating services and hosts on the Internet and on corporate networks. SOHO and enterprise Linux and Windows systems usually rely on DNS server infrastructure for name resolution and service discovery. In the absence of DNS servers, network client machines will be unable to log on or connect to services or servers. DNS problems can also affect external websites and services. As a network technician, you will often be called upon to troubleshoot issues with name resolution.
Text Lessons:
- 6.6.2 Name Resolution Issues
Text and Video Lessons:
- 6.6.1 Client DNS Issues (00:52 minutes)
- 6.6.3 nslookup (3:39 minutes)
- 6.6.4 dig (5:29 minutes)
Lab/Activity:
- 6.6.5 Lab: Explore nslookup
- 6.6.6 Lab: Use nslookup
Quiz/Assessment:
- 6.6.7 Lesson Review (10 questions)
Topics Discussed:
- What are the symptoms of name resolution problems?
- What is the role of the HOSTS file in the name resolution process?
- What is the difference between nslookup and dig?
Assignment:
- Access the TestOut Courseware through the provided link.
- Study Lesson 6.6: DNS Troubleshooting and complete the 6.6.5 Lab: Explore nslookup, 6.6.6 Lab: Use nslookup, and the 10 question 6.6.7 Lesson Review Exam to complete the Section.
Assigned: May 8th, 2025
Teacher Pacing Due Date: May 9th, 2025