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NEW QUESTION # 80
Which type of malware is designed to block access to a computer system until a sum of money is paid to the attacker?
Response:
- A. Trojan horse
- B. Spyware
- C. Ransomware
- D. Worm
Answer: C
NEW QUESTION # 81
Distributed locks, a fundamental feature in large-scale applications, are implemented in redis-based systems to ensure mutually exclusive access to shared resources. In scenarios where resources are accessed by multiple hosts, distributed locks prevent logical failures due to resource contention.
Understanding the properties of distributed locks helps in designing efficient synchronization mechanisms. Which of the following are features of distributed locks?
(Choose three)
Response:
- A. Mutual exclusion
- B. Atomicity
- C. Isolation
- D. Consistency
Answer: A,B,D
NEW QUESTION # 82
What is the purpose of a failover mechanism in High-Reliable Architectural Design?
Response:
- A. To intentionally cause system failures
- B. To switch to backup systems when a failure is detected
- C. To prevent any failures from occurring
- D. To reduce system scalability
Answer: B
NEW QUESTION # 83
In Alibaba Cloud, what is the term for using virtualization to run isolated virtual machines on a single physical server?
Response:
- A. Containerization
- B. Hypervisor-based Virtualization
- C. Server Multiplexing
- D. Virtual Machine Overloading
Answer: B
NEW QUESTION # 84
A company stores data in OSS buckets. According to the company's security policy, static data must be encrypted at rest. Which of the following methods can meet this requirement?
An e-commerce platform, implementing a highavailability architecture, uses an Alibaba Cloud Server Load Balancer (SLB) instance to connect user terminals to its applications. Users note login states not being updated after logging in and items disappearing from shopping carts. Addressing this issue revolves around the management of user sessions and persistence.
Which solutions can resolve issues such as session inconsistency and cleared shopping cart items?
(Choose three)
Response:
- A. Enable session persistence for SLB instances, ensuring user requests maintain session continuity with backend processing servers. Upload an object and specify a server-side encryption method for the object.
- B. Use custom keys to encrypt the data at the client before importing it to OSS.
- C. Use OSS bucket policies to restrict access to static data.
- D. Upload data over HTTPS and encrypt the data before transmitting it to OSS.
Answer: A,B,D
NEW QUESTION # 85
Which of the following is a common challenge in achieving high reliability in architectural design?
Response:
- A. Balancing cost and redundancy
- B. Reducing system availability
- C. Avoiding all forms of redundancy
- D. Centralizing all resources
Answer: A
NEW QUESTION # 86
In high-performance architecture, what is the purpose of a Content Delivery Network (CDN)?
Response:
- A. To store all data in a central location
- B. To improve data security
- C. To centralize all computing tasks
- D. To distribute content and reduce latency
Answer: D
NEW QUESTION # 87
In Cloud and Global Network Design, what is the primary benefit of using a direct cloud interconnect, such as AWS Direct Connect or Azure ExpressRoute?
Response:
- A. Lower latency and more reliable connections to cloud providers
- B. Reduced cloud service costs
- C. Enhanced cloud resource scalability
- D. Improved network security
Answer: A
NEW QUESTION # 88
What is a common challenge in managing distributed infrastructure for high-performance applications?
Response:
- A. Increased network latency
- B. Simplified system administration
- C. Limited scalability
- D. Decreased fault tolerance
Answer: A
NEW QUESTION # 89
What does the term "RPO" (Recovery Point Objective) refer to in High-Reliable Architectural Design?
Response:
- A. The maximum allowable downtime for a system
- B. The time it takes to recover from a failure
- C. The cost associated with system redundancy
- D. The amount of data loss that is acceptable during a recovery process
Answer: D
NEW QUESTION # 90
What is a key advantage of using multi-zone deployment in Alibaba Cloud?
Response:
- A. Increased fault tolerance
- B. Higher cost savings
- C. Simplified data replication
- D. Faster single-zone performance
Answer: A
NEW QUESTION # 91
What is the primary objective of IT Governance?
Response:
- A. Ensuring alignment of IT with organizational goals and managing IT risks
- B. Maximizing IT investment returns
- C. Minimizing IT complexity
- D. Reducing IT staff
Answer: A
NEW QUESTION # 92
Which Alibaba Cloud database service offers support for multiple database engines like MySQL, PostgreSQL, and SQL Server?
Response:
- A. PolarDB
- B. Table Store
- C. Cloud Enterprise Network
- D. ApsaraDB for RDS
Answer: D
NEW QUESTION # 93
Which network design approach can help organizations optimize their global network performance and reduce latency by strategically placing data centers and cloud resources worldwide?
Response:
- A. Network segmentation
- B. Content Delivery Network (CDN)
- C. Hybrid cloud deployment
- D. Global load balancing
Answer: D
NEW QUESTION # 94
Which cybersecurity principle emphasizes limiting access rights for users to the minimum levels necessary for their job functions?
Response:
- A. Least privilege
- B. Full access
- C. Open access
- D. Maximum privilege
Answer: A
NEW QUESTION # 95
In the context of high availability, what is the role of "Auto Scaling" in Alibaba Cloud?
Response:
- A. Auto Scaling automatically adjusts compute resources based on traffic load.
- B. Auto Scaling provides data backup services.
- C. Auto Scaling reduces the number of servers during high traffic periods.
- D. Auto Scaling only manages database scalability.
Answer: A
NEW QUESTION # 96
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