C100DBA PDF & C100DBA考試題庫

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MongoDB C100DBA Exam Syllabus Topics:

SectionObjectives
Replication- Replica Sets
  • 1. Elections
  • 2. Write Concerns
  • 3. Primary and Secondary Nodes
  • 4. Read Preferences
CRUD Operations- Data Manipulation
  • 1. Read Queries
  • 2. Insert Operations
  • 3. Delete Operations
  • 4. Update Operations
Indexes- Index Management
  • 1. Query Performance Optimization
  • 2. Index Selection
  • 3. Compound Indexes
  • 4. Single Field Indexes
Philosophy and Features- MongoDB Architecture
  • 1. Collections and Databases
  • 2. Scalability Concepts
  • 3. High Availability Concepts
  • 4. Document Model
Application Administration- Security and Access Control
  • 1. Role-Based Access Control
  • 2. Authentication
  • 3. User Management
  • 4. Authorization
Server Administration- Database Operations
  • 1. Backup and Restore
  • 2. Monitoring
  • 3. Configuration Management
  • 4. Storage Management
Sharding- Cluster Scaling
  • 1. Balancer Operations
  • 2. Shard Keys
  • 3. Chunk Distribution
  • 4. Query Routing

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最新的 MongoDB Certified DBA Associate C100DBA 免費考試真題 (Q168-Q173):

問題 #168
The Production MongoDB Cluster contains Personally Identifiable Information, such as Name, Demographics, Date of Birth, and Government Identification Number. Due to strict compliance requirements, a database administrator is tasked to ensure a client ' s side encryption.
What feature should the administrator use to meet the requirement?

答案：A

解題說明：
Queryable Encryption is designed for client-side protection of sensitive fields while preserving supported query capabilities over encrypted values. With this model, appropriately configured client drivers encrypt selected fields before data is transmitted to the MongoDB server and decrypt authorized results on the client side. That architecture is well suited to highly sensitive PII such as government identification numbers, dates of birth, or regulated demographic information because the database server stores encrypted field values rather than plaintext for those protected fields. The Encrypted Storage Engine, option A, protects database files at rest but the server can still process decrypted data internally. TLS/SSL, option B, protects data while it is moving across the network, not the application field values from the database server itself. Role-Based Access Control, option C, restricts which authenticated principals can perform actions but does not itself cryptographically protect the field contents. Queryable Encryption complements, rather than replaces, TLS, authentication, authorization, auditing, and storage encryption. For the specific requirement of client-side encryption of sensitive application data, option D is the correct MongoDB feature.
Study Guide reference/topic:Security, Networking, and Encryption - Queryable Encryption, client-side encryption, sensitive fields, and key management.


問題 #169
You perform the following operation in the shell: db.foo.insert( { } ); What gets inserted?

答案：E


問題 #170
Consider the following posts document:

Which of the following queries will return the documents but with only the first two tags in the tags array?

答案：B


問題 #171
The following aggregation option is used to specify the specific fields that needs to be passed to the next stage of the aggregation pipeline:

答案：D


問題 #172
Which of the following commands finds all the documents in the posts collection with post timestamp field as null?

答案：C


問題 #173
......

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