Huawei H13-527_V5.0 Exam With Confidence Using Practice Dumps

The statement is FALSE . Official OpenStack documentation clearly distinguishes pause from suspend . When a server is paused , OpenStack states that the state of the VM is stored in RAM , and the instance continues in a frozen state. This means memory is not written to disk during a pause operation. Because RAM is still occupied, a paused VM does not reduce resource usage to a minimal level in the way the question suggests.

By contrast, when a server is suspended , OpenStack documentation says that its state is stored on disk , all memory is written to disk , and the server is stopped. This is the action that is conceptually similar to hibernation. The distinction is important in OpenStack and Huawei Cloud Stack operations because pause is mainly used for temporary freezing of execution, while suspend is used when preserving state on disk is required. Therefore, the statement in the question incorrectly describes suspend , not pause . For that reason, the correct answer is B (FALSE) .

The correct answer is C. SaaS. In the Software as a Service model, the cloud provider delivers a complete application that users access over the network, while the provider is responsible for installation, maintenance, upgrades, and much of the operational management. This makes SaaS especially suitable for daily office work, such as email, document collaboration, office suites, and business productivity applications. Organizations, especially small- and medium-sized enterprises, can use the software directly without managing the underlying infrastructure or platform.

By comparison, IaaS mainly provides infrastructure resources such as compute, storage, and networking, so the enterprise still needs to manage operating systems and applications. PaaS provides an application development and runtime platform, which is useful for developers but not the best fit for general office users. MaaS is not the standard answer in this classic cloud-service-model classification.

In Huawei Cloud computing training and in mainstream cloud architecture, SaaS is the service model that best matches a scenario where customers want to use software immediately and avoid the burden of software deployment and maintenance. Therefore, the verified answer is C. SaaS.

The correct answer is PKI. In OpenStack Keystone, PKI (Public Key Infrastructure) tokens are cryptographically signed and specifically rely on a public/private key pair. Official OpenStack Keystone documentation states that PKI tokens are signed documents and that the Identity service uses public/private key pairs and certificates to create and validate them. It also explains that PKI and PKIZ tokens can be verified offline using Keystone’s public signing key, which directly matches the wording in the question about signing and verification.

By contrast, UUID tokens are simple persisted identifiers and do not inherently depend on public/private key signing. Fernet tokens are also a Keystone token format, but they are based on symmetric cryptography and shared key repositories rather than a public/private key pair. OpenStack documentation explicitly distinguishes Fernet and UUID from the deprecated PKI token mechanism. Therefore, among the listed options, the authentication method that uses a pair of private and public keys is clearly PKI. This aligns with standard OpenStack identity-service architecture and is consistent with Huawei Cloud Stack training topics that build on Keystone authentication concepts.