As the most popular open source cloud operating system platform, OpenStack mainly provides which of the following cloud computing service models?
- A . SaaS
- B . IaaS
- C . PaaS
- D . DaaS
Which of the following allows users to access OpenStack virtual machine instances from an external network?
- A . Floating IP
- B . Local IP
- C . LB
- D . Security Group Rules
During the OpenStack virtual machine instance provisioning process, which of the following descriptions of the status change process of the provisioning task is correct?
- A . Scheduling – Block Device Mapping – Spawning – Networking – None
- B . Scheduling – Block Device Mapping – Networking – Spawning – None
- C . Scheduling – Networking – Spawning – Block Device Mapping – None
- D . Scheduling – Networking – Block Device Mapping – Spawning – None
In OpenStack, which of the following components does Nova not include?
- A . nova-api
- B . nova-conductor
- C . nova-scheduler
- D . nova-proxy
To which of the following Neutron objects is the virtual network card of an OpenStack virtual machine instance directly bound?
- A . Network
- B . Subnet
- C . Router
- D . Port
Which of the following statements about Swift data reliability is wrong?
- A . Swift creates a certain number of copies of each object
- B . The granularity at which Swift manages copies is the object
- C . Object copies are implemented through Partition copies
- D . Each copy is stored in a different zone
In OpenStack, which of the following is not a persistent storage?
- A . Cinder
- B . Swift
- C . NFS
- D . Memory
In what form is the Object ultimately stored on the physical node in Swift?
- A . Stream File
- B . RAW files
- C . Text files
- D . Binary files
In Neutron, which of the following components is responsible for receiving and routing API requests to the Plugin?
- A . Messaging Queue
- B . Neutron Server
- C . Agent
- D . Plugins
In Huawei Cloud Stack, which of the following descriptions about CloudDNS is wrong?
- A . When the cloud server accesses internal cloud services such as OBS and performs resolution through public DNS, the access latency is small and the performance is high.
- B . One domain name can be associated with multiple VPCs
- C . When the cloud server accesses internal cloud services such as OBS and performs resolution through the intranet DNS, the access latency is small and the performance is high.
- D . Support any customized intranet domain name based on VPC
In Huawei Cloud Stack, which of the following descriptions about the VDC levels that a first-level VDC administrator can create is correct?
- A . Level 1 to 5
- B . Level 2 to 6
- C . Level 1 to 4
- D . Level 2 to 5
In Huawei Cloud Stack, if users need to protect ECS and its bound disk data, considering the cost, which of the following cloud services is most suitable?
- A . VHA
- B . CSBS
- C . CSDR
- D . VBS
In Huawei Cloud Stack, if multiple cloud servers in a VPC need to access the external network, which of the following cloud services can be used in conjunction with elastic IP to achieve this?
- A . NAT Gateway
- B . Network ACL
- C . DNS
- D . Security Group
In Huawei Cloud Stack, which of the following descriptions about the Elastic File Service (SFS) is wrong?
- A . Users can manage the file system, including capacity adjustment, viewing, uninstalling, restoring, and deleting the file system.
- B . After creating a file system, you need to mount the file system to the cloud server before you can use it.
- C . SFS can be elastically scaled up to TB scale at most
- D . Before using elastic file service, you must create a file system
In Huawei Cloud Stack, in order to facilitate administrators to manage cloud resources in combination with the company’s IT projects, enterprise projects can be created and the use of cloud resource pools by each department can be controlled through enterprise project quotas.
Which of the following roles cannot create an enterprise project?
- A . Secondary VDC Administrator
- B . Maintenance Administrator
- C . Operations Administrator
- D . Level 1 VDC Administrator
In Huawei Cloud Stack, which of the following descriptions about unified backup management is wrong?
- A . Under unified backup management, Huawei distributed storage connects to ManageOne operation and maintenance through BCM
- B . Unified backup management can simplify backup operations. You don’t need to log in to each cloud service interface to perform backup, which reduces operation time.
- C . Unified backup management supports backing up common components, FusionSphere, FusionStorage, CloudDB, and CloudMiddleWare data to an SFTP server
- D . Under unified backup management, common components and FusionSphere are connected to the Manage0ne operation and maintenance plane through Service 0M.
The customer’s needs are to reduce operating costs, visualize data, and identify risks. In Huawei Cloud Stack, which of the following functions in the operation and maintenance scenario layer is most suitable?
- A . Operation and maintenance analysis
- B . Centralized monitoring
- C . Application Analysis
- D . Control Center
In Huawei Cloud Stack, which of the following descriptions of the EVS function is wrong?
- A . EVS supports elastic expansion
- B . EVS supports elastic scaling
- C . EVS supports flexible mounting/unmounting
- D . EVS supports snapshot function
In Huawei Cloud Stack, which of the following descriptions about users using existing images to create elastic cloud servers is wrong?
- A . Create an ECS using a system disk image
- B . Create an ECS using a public image
- C . Create an elastic cloud server using a data disk image
- D . Create an ECS using a shared image
In OpenStack, which of the following network types can encapsulate data packets into UDP packets for transmission?
- A . GRE
- B . VLAN
- C . VXLAN
- D . Flat
Which of the following configuration files defines the permissions of the OpenStack service role?
- A . keystone. policy. yaml
- B . policy.conf
- C . policy.json
- D . keystone.conf
Which of the following descriptions of nova-conductor functions is correct?
- A . Create and delete VM instances through the Hypervisor API
- B . Filter and determine the compute nodes where the VM instances run
- C . Carrying out the interaction between nova-compute and the database
- D . Receive and respond to API call requests initiated by end users for OpenStack computing resources
Which of the following descriptions about the correspondence between Port and Subnet in Neutron is correct?
- A . 1: N
- B . N: N
- C . N: 1
- D . 1:1
In Huawei Cloud Stack, which of the following is not a metering and pricing function?
- A . Monitoring Performance
- B . Account Management
- C . Metrics Report
- D . Service Pricing
When Nova issues a virtual machine instance, the filter selects two hosts that meet the requirements from the 10 hosts. Host A has 128 GB of available memory and 1024 GB of available disk space; Host B has 64 GB of available memory and 2048 GB of available disk space.
By default, which host will the virtual machine instance be provisioned to?
- A . Randomly select a host
- B . Host A
- C . Insufficient information to determine which host to choose
- D . Host B
A big promotion or flash sale by an e-commerce company will cause its business traffic to surge in a short period of time. How to deal with the concurrent access of massive users, handle the problem of increased pressure, avoid wasting resources after the big promotion, and prevent and stop malicious attacks and malicious panic buying during the operation.
If the e-commerce company migrates its business to the cloud platform, in order to solve the above problems, which of the following descriptions of the cloud-based solution for the e-commerce business is wrong?
- A . To meet the high security requirements of the business, you can use security services such as Web application firewalls
- B . To avoid wasting resources after a big promotion, the backend elastic cloud server uses elastic scaling to increase or decrease ECS according to detailed strategies. After the business data is processed by the cloud database, the persistent data is stored in the cloud hard disk bound to the ECS.
- C . To ensure the reliability of the business, elastic load balancing can be used to distribute network traffic to the backend elastic cloud server.
- D . Traffic needs to be filtered by the firewall before entering the cloud
In Huawei Cloud Stack, when the cloud server in the VPC needs to provide services to the external network, which of the following NAT gateway rules can be configured to achieve this?
- A . HNAT
- B . QNAT
- C . DNAT
- D . SNAT
In Huawei Cloud Stack, which of the following public components can block some illegal requests and prevent the internal management API from being exposed?
- A . API Gateway
- B . NTP
- C . Combination API
- D . CCS
In Huawei Cloud Stack, Service OM is responsible for providing basic operation and maintenance capabilities for which of the following resources?
- A . DaaS
- B . PaaS
- C . IaaS
- D . SaaS
In Huawei Cloud Stack, which of the following is not a VDC self-operation and maintenance function?
- A . Divide the organization
- B . Monitoring Performance
- C . Setting Thresholds
- D . Subscribe to notifications
In Huawei Cloud Stack, which of the following is not an external dependency of TaskCenter?
- A . DMK
- B . IAM
- C . ICAgent
- D . NTP
In Huawei Cloud Stack, which of the following network cloud services cannot achieve intercommunication between different regions and different VPC?
- A . Cloud connection
- B . Peer connection
- C . Cloud Private Line
- D . Virtual Private Network
In Huawei Cloud Stack, if users want to view the creation status of ECS instances, which of the following public components can be used to achieve this?
- A . TaskCenter
- B . HelpCenter
- C . OperationCenter
- D . API Gateway
In OpenStack, which of the following descriptions about how the cloud platform or its core services work is wrong?
- A . Nova makes asynchronous calls to request responses. When a request is accepted, a callback is triggered immediately. Due to the use of asynchronous communication, no user action will be placed in a waiting state for a long time.
- B . When deploying an OpenStack cloud, the message queues and databases used for communication between different processes in a service are selected one-to-one.
- C . Swift adopts a completely symmetrical, resource-oriented distributed storage architecture design. All components are scalable to avoid the spread of single point failures and affect the operation of the entire system.
- D . Each openstack service is composed of multiple processes. All services (except Keystone) have at least one API process that listens for API requests, pre-processes the requests and passes them to other parts of the service.
In OpenStack, which of the following descriptions about Ceilometer data management is wrong?
- A . Ceilometer allows multiple sampling frequencies of measurement data at the same time
- B . In Ceilometer, Transformer can perform various operations on one or more data samples of the same type.
- C . In Ceilometer, Transformer can perform various operations on one or more different types of data samples.
- D . Ceilometer allows multiple ways of publishing measurement data at the same time
In Huawei Cloud Stack, operational process governance can be divided into five stages: resource application, compliance check, resource distribution, resource management, and application-centric. To which of the following stages does quota control belong?
- A . Resource Application
- B . Resource Distribution
- C . Resource Management
- D . Compliance Check
In OpenStack, which of the following descriptions of Keystone-related concepts is wrong?
- A . Endpoints are divided into Admin Internal and Public. These different types of endpoints are open to different users or services.
- B . Roles can be granted at the domain or project level, roles can be assigned at the individual user or group level, and role names are unique within the domain that owns the role
- C . The service in Keystone verifies the validity of the token for the user, locates the location of other services and provides the location endpoint to the user, and can also call other services
- D . All user names, group names, project names, and role names are not globally unique in OpenStack, but are unique only in the domain to which they belong.
In OpenStack, which of the following descriptions of nova-related services is wrong?
- A . nova_api will send long-duration task requests to nova_conductor. In addition to long-duration tasks, nova_conductor also needs to act as a database proxy for nova_compute
- B . nova_ap receives the user request, and nova_ap sends the request to Nova_conductor or nova_compute based on whether the request is a long-term task or a short-term task.
- C . Nova is mainly composed of four core services: nova_ap, nova_compute, nova_conductor, and nova_scheduler. They communicate through RPC
- D . After nova_api receives a request to create or delete a virtual machine, it needs the participation of nova_conductor and nova_scheduler services to complete the corresponding request.
In OpenStack, which of the following Neutron components implements various network services such as Router, SecurityGroups, and FwaaS?
- A . Service AP1
- B . Service Plugin
- C . Neutron Agent
- D . Core Plugin
In Huawei Cloud Stack, which of the following operations is completed in the Service OM interface?
- A . Configure host network port mapping
- B . Configure the distributed block storage reuse ratio
- C . Configure the host group CPU reuse ratio
- D . Configure the host group memory reuse ratio
In Huawei Cloud Stack, after logging into the operation page using a first-level VDC administrator account, which of the following operations cannot be performed by a first-level VDC administrator?
- A . Remove a shared image
- B . Create a public image
- C . Create a private image
- D . Shared private images
In Huawei Cloud Stack, which of the following descriptions about the use of peer connections is wrong?
- A . If the operating user has management rights for the project where the peer VPC is located, after the peer connection is created, the peer project administrator or salesperson needs to manually accept the connection request and then add routes in the VPCs at both ends.
- B . Peering connections are not transitive. If multiple VPCs need to communicate through peering connections, peering connections need to be established between each other.
- C . Both the local and remote ends need to configure routing
- D . After the peer connection configuration is completed, you also need to configure the security group and network ACL rules to allow the corresponding traffic
In Huawei Cloud Stack, which of the following descriptions of AutoOps capabilities is wrong?
- A . When AutoOps uses the same file as the file input parameter for an operation on a large number of elastic cloud servers, the operation orchestration may be slow or timed out.
- B . When the account for executing an operation is one of multiple system users with the same UID and the operation contains file input parameters, AutoOps will automatically create two operations, one for file download and the other for implementing operation and maintenance automation.
- C . AutoOps can manage non-OpenStack resource pool tenant virtual machines to achieve automated operation and maintenance
- D . When AutoOps clones an ECS with Agent installed, you must first manually uninstall the Agent, clone the ECS, and then install the Agent.
In OpenStack, Keystone supports multiple authentication methods. Which of the following operations can enable OpenStack to use different authentication methods to meet different security requirements?
- A . Create different projects and configure multiple authentication methods by modifying the configuration files
- B . Create different roles and configure multiple authentication methods by modifying the configuration files
- C . Create different domains and configure multiple authentication methods by modifying the configuration files
- D . Create different user groups and configure multiple authentication methods by modifying the configuration files
In Huawei Cloud Stack, which of the following components is not related to the ECS instance provisioning process?
- A . TaskCenter
- B . DMK
- C . Combination API
- D . HAProxy
In Service OM, which of the following descriptions about creating an external network is wrong?
- A . The external network used for elastic IP can also be used for VPN service
- B . If the network type is LOCAL, the messages of the ECS created using this network will not enter the physical network
- C . If you select VLAN as the network type, the packets of the ECS created using this network will not enter the physical network
- D . Before creating an external network, it is recommended to configure the VLAN or subnet on the switch for users to create external networks.
In Huawei Cloud Stack, which of the following does not belong to ManageOne daily operation and maintenance?
- A . Approval Process
- B . Health Inspection
- C . Automatic operation
- D . Backup Management
In Keystone, ownership of resources belongs to which of the following objects?
- A . Project
- B . Role
- C . User
- D . Service
Which of the following commands can convert the Glance image from raw format to qcow2 format?
- A . qemu-img convert -s raw -d qcow2
- B . qemu-img convert -f qcow2 -O raw
- C . qemu-img convert -s qcow2 -d raw
- D . qemu-img convert -f raw -O qcow2
A user needs to start a new instance using the cirrus_test image. The instance uses the test.nano specification and is accessed through the testkey key pair. The name is instance_test. Which of the following commands can meet the user’s requirements?
- A . nova create instance_test –image cirrus_test –flavor test.nano –key-name test_key
- B . nova create instance_test –image cirrus test test key test.nano –flavor –key-name
- C . nova boot instance_test –image cirrustest test.nano –flavor –key-name test_key
- D . nova boot instance_test –image cirrus_test –flavor test.nano –key-name test_key