The openstack server list command provides information about virtual machine (VM) instances in the
OpenStack environment. Let’s analyze the exhibit and each statement:
Key Information from the Exhibit:
The output shows details about the myvSRX instance:
Status: ACTIVE (indicating the instance is running).
Networks: VN-A-10.1.0.3 (indicating the instance is part of a specific network).
Image: vSRX3 (indicating the instance was created using a custom image).
Flavor: vSRX-Flavor (indicating the instance was created using a custom flavor).
Option Analysis:
A . The myvSRX instance is using a default image.
Incorrect: The image name vSRX3 suggests that this is a custom image, not the default image
provided by OpenStack.
B . The myvSRX instance is a part of a default network.
Incorrect: The network name VN-A-10.1.0.3 indicates that the instance is part of a specific network,
not the default network.
C . The myvSRX instance is created using a custom flavor.
Correct: The flavor name vSRX-Flavor indicates that the instance was created using a custom flavor,
which defines the CPU, RAM, and disk space properties.
D . The myvSRX instance is currently running.
Correct: The ACTIVE status confirms that the instance is currently running.
Why These Statements?
Custom Flavor: The vSRX-Flavor name clearly indicates that a custom flavor was used to define the
instance's resource allocation.
Running Instance: The ACTIVE status confirms that the instance is operational and available for use.
JNCIA Cloud Reference:
The JNCIA-Cloud certification emphasizes understanding OpenStack commands and outputs,
including the openstack server list command. Recognizing how images, flavors, and statuses are
represented is essential for managing VM instances effectively.
For example, Juniper Contrail integrates with OpenStack Nova to provide advanced networking
features for VMs, ensuring seamless operation based on their configurations.
Reference:
OpenStack CLI Documentation: openstack server list Command
Juniper JNCIA-Cloud Study Guide: OpenStack Compute
Referring to the exhibit, which two statements are correct? (Choose two.)
Referring to the exhibit, which two statements are correct? (Choose two.)