680 Exam Questions for H14-231_V1.0 Updated Versions With Test Engine
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NEW QUESTION # 57
Which of the following security mechanisms can ensure that application data is not maliciously used?
- A. Permission management
- B. App permissions
- C. Application security
- D. port security
Answer: B
NEW QUESTION # 58
A developer needs to use the emulator in DevEco Studio, click to log in to the emulator and enter your HUAWEI ID, and the browser will directly jump to the real-name authentication interface. What are the reasons for this problem?
- A. Account is not registered
- B. has just completed real-name authentication, but the authentication has not yet taken effect
- C. uses the Chrome browser
- D. The HUAWEI ID is not verified
Answer: B,D
NEW QUESTION # 59
An engineer uses a local simulator for application debugging, which of the following describes the wrong local simulator?
- A. Youcan run both the application-compatible signed and unsigned HAP (HarmonyOSAbility Package) on the local simulator
- B. The default shortcut to start running is Shift+F10
- C. The local emulator can run and debug HarmonyOS applications for LiteWearable and Smart Vision devices
- D. By default, DevEco Studio does not automatically match the corresponding device emulator
Answer: C
NEW QUESTION # 60
What is wrong about the animation parameter in the attribute animation?
- A. The default value of tempo is 1.0
- B. parameter delay cannot be greater than duration
- C. parameter curve can be left unset
- D. parameter iterations can be left unset
Answer: B
NEW QUESTION # 61
When developing a HarmonyOS application, if you want to set the background color for a Text component in the page, the following is correct
- A. ohos:background_element="$color:green"
- B. ohos:background_element="#0000FF"
- C. ohos:background_element="$graphic:background
- D. ohos:background_element="#880000FF"
Answer: A,B,C,D
NEW QUESTION # 62
In the HarmonyOS system architecture, which of the following can shield the differences between multiple cores and provide basic kernel capabilities for the upper layer?
- A. UI
- B. HDF (Hardware Driver Foundation)
- C. Ability
- D. KAL (Kernel Abstract Layer)
Answer: D
NEW QUESTION # 63
What kind of struct is used to decoratively indicate that the structure has the ability to be componentized?
- A. @Component
- B. @Entry
- C. @Preview
- D. @Builder
Answer: A
NEW QUESTION # 64
There is a config.json configuration file in the root directory of each HAP (HarmonyOS Ability Package) of an application.
- A. Version information for the app
- B. deviceType
- C. Layout property configuration information
- D. deviceConfig information
Answer: A,B,D
NEW QUESTION # 65
In the distributed terminal scenario, the "correct person" refers to the data accessor and business operator who have passed identity authentication. The "right person" is a prerequisite to ensure that user data is not illegally accessed and user privacy is not leaked. What does HarmonyOS use to implement collaborative authentication?
- A. Multi-factor fusion authentication
- B. Collaborative Mutual Aid Certification
- C. Zero Trust model
- D. Trusted Execution Environment
Answer: A,B,C
NEW QUESTION # 66
What attributes are supported by attribute animations?
- A. opacity
- B. rotate
- C. width
- D. scale
Answer: A,B,C,D
NEW QUESTION # 67
When a developer uses the Text component for development, because the length ofthe input string is too long, which of the following codes can be used to display the entire content?
- A. ohos:auto_font_size="true"
- B. ohos:truncation_mode="none"
- C. ohos:truncation_mode="ellipsis_at_start"
- D. ohos:multiple_lines="true"
Answer: A,D
NEW QUESTION # 68
There is a configljson configuration file in the root directory of each HAP (HarmonyOS Ability Package) of a HarmonyOS application.
- A. module
- B. deviceConfig
- C. app
- D. abilities
Answer: A,B,C
NEW QUESTION # 69
Cross-terminal migration and collaboration are the capabilities of which HarmonyOS feature
- A. can be divided or combined
- B. Unified ecology
- C. Develop multiple deployments at one time
- D. Free circulation
Answer: B
NEW QUESTION # 70
A HarmonyOSuser downloads and installs a new application, which has declared some non-sensitive permissions in the config.json file, and the application may involve some sensitive permissions during running. Which of the following is correct in this scenario?
- A. Non-sensitive permissions declared by the app in the config.json file are automatically granted when the user installs the app
- B. For the non-sensitive permissions declared by the app in the config.json file, the authorization method is user authorization (user_grant)
- C. For the sensitive permissions that may be involved in the running process of the application, the authorization method is system authorization (system_grant).
- D. For the non-sensitive permissions declared by the application in the config.json file, the application will be dynamically applied for during use
Answer: A
NEW QUESTION # 71
Which of the following can set the rounded corner effect of the ShapeElement?
- A. Bin Java code set: int radius =
- B. is set in Java code:
element.setCornerRadius(AttrHelper.vp2px(8)) - C. AttrHelper.vp2px(8)
element.setCornerRadiiArray(new float[]
{radius,radius,radius,radius,radius,radius,radius,radius}) - D. Set in XML:
Answer: B,C,D
NEW QUESTION # 72
When a developer is developing a game application, in order to display the download progress of game resources, it is necessary to use a circular progress bar, which of the following components can help the developer complete this function?
- A. PageSlider
- B. ToastDialog
- C. RoundProgressBar
- D. ProgressBar
Answer: C
NEW QUESTION # 73
Which of the following statements is correct?
- A. The number of data stored in the preference is recommended not to exceed 10,000
- B. Preference is to access data in the form of Key-Value
- C. preference follows the ACID characteristic
- D. The key of the preference is of type String
Answer: A,B,D
NEW QUESTION # 74
If you need to use a composite animation, you can combine multiple animated objects and add them to the AnimatorGroup. The AnimatorGroup provides two methods: runSerially() and runParallel(). Indicates that the animation starts at the same time and that the animation starts sequentially.
- A. False
- B. True
Answer: A
NEW QUESTION # 75
When a developer is developing an application, he calls the IAbilityContribution interface to migrate between multiple pages, what are the methods that belong to the interface?
- A. onStartContinuation()
- B. onAbilityConnectDone()
- C. onRestoreData()
- D. onCompleteContinuation()
Answer: A,C,D
NEW QUESTION # 76
What are the reasons why a developer wants to use the previewer in DevEco Studio to view the application interface of the design, but the previewer cannot be used?
- A. Projectis not synchronized successfully
- B. The previewer resource was not downloaded
- C. SDK has not been updated to the latest version
- D. Preview is not supported for files currently open in the editor
Answer: A,B,C,D
NEW QUESTION # 77
The KV data model is a SQL-type database whose data is organized, indexed, and stored in the form of key-value pairs.
- A. False
- B. True
Answer: A
NEW QUESTION # 78
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