EX200 Deploy, configure, and maintain systems Practice Question
This EX200 practice question tests your understanding of deploy, configure, and maintain systems. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An administrator needs to configure a static IP address on an interface that will persist across reboots using NetworkManager. Which TWO commands or files can be used to achieve this?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
nmcli con mod eth0 ipv4.addresses 192.168.1.10/24
Option C is correct because the `nmcli con mod` command modifies the NetworkManager connection profile for the interface, setting a static IPv4 address that is stored persistently in the connection configuration. Option D is correct because editing the `/etc/sysconfig/network-scripts/ifcfg-eth0` file directly defines the static IP address in the ifcfg format, which NetworkManager reads on boot to apply persistent settings.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
systemctl restart network
Why it's wrong here
Restarts networking but does not set a static IP.
✗
nmcli con up eth0
Why it's wrong here
Brings the connection up but does not change IP configuration.
✓
nmcli con mod eth0 ipv4.addresses 192.168.1.10/24
Why this is correct
Modifies the connection configuration, which is saved and persists.
Related concept
Read the scenario before looking for a memorised answer.
✓
Edit /etc/sysconfig/network-scripts/ifcfg-eth0
Why this is correct
Directly editing the configuration file persists across reboots.
Related concept
Read the scenario before looking for a memorised answer.
✗
ip addr add 192.168.1.10/24 dev eth0
Why it's wrong here
This sets the IP temporarily and does not persist across reboots.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse runtime commands like `ip addr add` (which are temporary) with persistent configuration methods, or they mistakenly think restarting the network service (systemctl restart network) will save the IP address, when in fact it only reloads existing configurations without making changes permanent.
Detailed technical explanation
How to think about this question
NetworkManager stores connection profiles in `/etc/NetworkManager/system-connections/` (or in ifcfg files on RHEL-based systems). The `nmcli con mod` command updates the profile in the keyfile or ifcfg format, ensuring the static IP is applied by NetworkManager on boot. The ifcfg file uses directives like `IPADDR=192.168.1.10` and `PREFIX=24`; NetworkManager parses these on startup, making both methods equivalent for persistent configuration.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the EX200 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Deploy, configure, and maintain systems — This question tests Deploy, configure, and maintain systems — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: nmcli con mod eth0 ipv4.addresses 192.168.1.10/24 — Option C is correct because the `nmcli con mod` command modifies the NetworkManager connection profile for the interface, setting a static IPv4 address that is stored persistently in the connection configuration. Option D is correct because editing the `/etc/sysconfig/network-scripts/ifcfg-eth0` file directly defines the static IP address in the ifcfg format, which NetworkManager reads on boot to apply persistent settings.
What should I do if I get this EX200 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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