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Section 1
Rack and cable server hardware safely
Preview
Preview: 1. Server Hardware Installation and Management (18%)
Preview includes- 4 of 6 lesson topics
- 1 overview segment
- 3 core concepts
- 2 exam tips
Lesson Topics
- Rack loading and stability
- Rail and lifting safety
- Cable-management and labeling
- Redundant power-feed design
Overview
Safe server installation is a physical-engineering problem before it is a software problem. Rack loading, rails, power feeds, airflow, cabling, and service access must all be planned before equipment is energized.
Core Concepts
- Install heavy equipment low in the rack and follow rack/rail weight limits and vendor mounting instructions; a top-heavy or partially anchored rack is a safety hazard.
- Use cable-management arms, labeling, proper bend radius, and separate power/data paths where practical so cabling does not obstruct airflow or maintenance.
- Dual power supplies improve resilience only when connected to independent supported power paths; plugging both PSUs into one PDU or circuit preserves a common failure point.
Exam Tips
- Trace every redundant component upstream to see whether a shared PDU, UPS, circuit, or feed defeats redundancy.
- If a question involves a heavy chassis, rack stability and safe lifting outrank convenience.
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Section 2
Plan power and cooling
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Section 3
Choose RAID for performance and fault tolerance
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Section 4
Use shared storage appropriately
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Section 5
Perform out-of-band management
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Section 6
Control firmware and hot-swap maintenance
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Section 7
Select partitions and file systems during installation
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Section 8
Configure IP addressing, DNS, DHCP, and VLANs
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Section 9
Monitor server roles and performance
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Section 10
Migrate data with validation and rollback
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Section 11
Implement clustering, load balancing, and failover
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Section 12
Allocate host and guest virtualization resources
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Section 13
Automate server tasks with scripts
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Section 14
Maintain asset and lifecycle records
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Section 15
Protect data at rest and in transit
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Section 16
Apply physical and environmental security
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Section 17
Manage accounts, permissions, and multifactor authentication
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Section 18
Harden a server operating system
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Section 19
Decommission servers and media securely
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Section 20
Test backups, recovery, and failover
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Section 21
Troubleshoot power and hardware faults
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Section 22
Troubleshoot storage failures
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Section 23
Troubleshoot operating-system and application errors
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Section 24
Troubleshoot latency and connectivity
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Section 25
Validate disaster-recovery readiness
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