You want to ensure a service backup.service runs only after the network is fully up. Which directive should you add to the service unit file?

hard📝 Application Q9 of 15

Linux CLI - System Administration

You want to ensure a service backup.service runs only after the network is fully up. Which directive should you add to the service unit file?

AAfter=network-online.target

BRequires=network.target

CBefore=network.target

DWants=network.service

Step-by-Step Solution

Solution:

Step 1: Understand systemd target dependencies
To run after network is fully ready, use After=network-online.target.
Step 2: Analyze other options
Requires=network.target only ensures network service is started but not fully online; Before=network.target runs before network; Wants=network.service is weaker dependency.
Final Answer:
After=network-online.target -> Option A
Quick Check:
Use After=network-online.target for full network readiness [OK]

Quick Trick: Use After=network-online.target to wait for full network [OK]

Common Mistakes:

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