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Huawei HCIP-HarmonyOS Application Developer V1.0 Sample Questions:

1. A developer uses the HarmonyOS Bluetooth Low Energy function to achieve cross-distance wireless communication, how does the central device and peripheral devices interact in this scenario?

A) Peripherals are responsible for sending broadcasts
B) The central device scans peripherals and discovers broadcasts
C) The peripheral device acts as a server and can receive GATT connection requests from the central device
D) After the peripheral device and the central device establish a GATT connection, the peripheral device can query various data supported by the central device

2. When a developer has multiple versions of the object-relational mapping database, and the developer calls the BookStoreUpgrade class to upgrade the database version, the version number of the BookStoreUpgrade class is configured as "2", and the actual version number of the current BookStore.db is "1".

A) True
B) False

3. In the declarative development paradigm, which of the following decorator decorated state variables needs to be initialized locally, and the initialized value can be overridden by the construction parameters?

A) @State
B) @Prop
C) @ObjectLink
D) @StorageLink

4. A developer defines an entity class Student.java and uses the following code to construct a teaching table:
Entity(tableName="student",ignoredColums =["ignoredColumn1"," ignoredColumn2", indices
=(@Index(value =("firstName." ,"lastName",name="name_index", unique = true))) Public class User extends OrmObject{
@PrimaryKey(autoGenerate= true)
Private Integer userld;
Private String firstName;
Private String lastName;
Private int age;
Private double balance;
Private int ignoredColumnl;
Private int ignoredColumn2;
}
Which of the following descriptions of this code is wrong?

A) lndices creates a composite index name_index for the firstName and 1astName fields
B) composite index name_index is not unique
C) lgnoredColumns indicates that the field does not need to be added to the attributes of the student table
D) The name of the data table is student
The index value of the

5. Which of the following does not belong to the system service layer in the HarmonyOS system architecture?

A) Distributed data management
B) Distributed task scheduling
C) Ability
D) Distributed soft bus

Solutions: