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Chapter 61 — Change and Configuration Management Review

A complete networking lesson based on the course chapter menu.

26 topicsPractical examplesTroubleshooting checksReview Q&A

Estimated reading time0% read

Chapter 61: Change and Configuration Management Review

This chapter follows the topics shown in the Networking chapter menu. Work through each section in order, then use the review questions to check recall and troubleshooting reasoning.

61.1 Change Management

Change management reduces operational risk by documenting purpose, scope, approvals, implementation steps, validation, and rollback before production changes.

Scenario: a user reports a problem related to Change Management. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Change Management without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.2 Change Requests

Change Requests is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Change Requests. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Change Requests without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.3 Change Approval

Change Approval is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Change Approval. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Change Approval without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.4 CAB

CAB is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to CAB. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain CAB without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.5 Maintenance Windows

Maintenance Windows is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Maintenance Windows. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Maintenance Windows without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.6 Change Impact

Change Impact is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Change Impact. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Change Impact without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.7 Risk Assessment

Risk Assessment is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Risk Assessment. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Risk Assessment without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.8 Backups

Backups is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Backups. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Backups without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.9 Rollback Plans

A rollback plan defines how to return to a known working state if a change causes unacceptable impact.

Scenario: a user reports a problem related to Rollback Plans. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Rollback Plans without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.10 Testing Plans

Testing Plans is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Testing Plans. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Testing Plans without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.11 Stakeholder Notification

Stakeholder Notification is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Stakeholder Notification. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Stakeholder Notification without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.12 Emergency Changes

Emergency Changes is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Emergency Changes. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Emergency Changes without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.13 Unauthorized Changes

Unauthorized Changes is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Unauthorized Changes. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Unauthorized Changes without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.14 Configuration Management

Configuration Management is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Configuration Management. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Configuration Management without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.15 Configuration Drift

Configuration Drift is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Configuration Drift. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Configuration Drift without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.16 Golden Configurations

Golden Configurations is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Golden Configurations. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Golden Configurations without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.17 Version Control

Version Control is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Version Control. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Version Control without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.18 Audit Trails

Audit Trails is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Audit Trails. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Audit Trails without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.19 Policies

Policies is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Policies. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Policies without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.20 Procedures

Procedures is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Procedures. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Procedures without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.21 AUP

AUP is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to AUP. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain AUP without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.22 BYOD

BYOD is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to BYOD. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain BYOD without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.23 MDM

MDM is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to MDM. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain MDM without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.24 Password Policies

Password Policies is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Password Policies. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Password Policies without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.25 Remote-Access Policies

Remote-Access Policies is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Remote-Access Policies. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Remote-Access Policies without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

61.26 Incident-Response Policies

Incident-Response Policies is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

Scenario: a user reports a problem related to Incident-Response Policies. Start by writing the exact symptom, affected users, first known failure time, and recent changes. Then choose the smallest safe test that can prove or disprove one cause.

What to check

Confirm the symptom and determine whether the problem affects one host, one segment, one site, or many sites.
Compare actual configuration and measurements with the intended design, baseline, or documentation.
Change one variable at a time, verify the result, and document both the cause and the final fix.

Practice: Practice: explain Incident-Response Policies without reading the definition. Then draw or describe one network where it is used, name one failure symptom, and list the first two checks you would perform.

Chapter 61 Review Questions

1. What should you remember about Change Management?

Answer: Change management reduces operational risk by documenting purpose, scope, approvals, implementation steps, validation, and rollback before production changes.

2. What should you remember about CAB?

Answer: CAB is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

3. What should you remember about Risk Assessment?

Answer: Risk Assessment is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

4. What should you remember about Rollback Plans?

Answer: A rollback plan defines how to return to a known working state if a change causes unacceptable impact.

5. What should you remember about Emergency Changes?

Answer: Emergency Changes is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

6. What should you remember about Configuration Drift?

Answer: Configuration Drift is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

7. What should you remember about Audit Trails?

Answer: Audit Trails is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

8. What should you remember about Procedures?

Answer: Procedures is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

9. What should you remember about MDM?

Answer: MDM is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.

10. What should you remember about Incident-Response Policies?

Answer: Incident-Response Policies is one of the core topics in Change and Configuration Management Review. Understand what the term represents, where it operates in the network, what information it uses, and what observable behavior confirms that it is working correctly.