You need to create a new ECS instance for a 10-data test. Which of the following billing methods is most cost-effective?
According to the Alibaba Cloud ECS documentation1, the Pay-As-You-Go billing method is flexible and suitable for short-term or uncertain workloads. However, it is also the most expensive option compared to other billing methods. To reduce the cost of Pay-As-You-Go instances, you can purchase a Savings Plan, which is a discount plan that offers lower prices for a fixed amount of hourly usage. A Savings Plan can be applied to any Pay-As-You-Go instance in the same region, regardless of the instance type, operating system, or zone. Therefore, option A is the most cost-effective billing method for a 10-day test, as it allows you to enjoy the flexibility of Pay-As-You-Go and the savings of a fixed commitment. Reference: Billing methods and Savings Plan.
Which of the following Alibaba Cloud products can provide Anti-DDoS service? (Choose two.)
Alibaba Cloud provides two main products for Anti-DDoS protection: Anti-DDoS Origin Service, which protects against attacks at the origin server level, and Anti-DDoS Pro Service, which offers advanced DDoS mitigation for applications hosted on Alibaba Cloud. Security Center and Cloud Firewall offer different security functionalities but do not provide direct Anti-DDoS services.
Which of the following is not a potential cause of latency on an RDS read-only instance?
Latency on an RDS read-only instance can be caused by high loads on the instance itself, inadequate instance specifications, or excessive write operations on the master instance, as these factors directly impact replication delay and resource contention. However, a high load on the ECS instance connected to the RDS read-only instance would not inherently cause latency on the RDS instance, as the ECS and RDS operate independently in terms of processing.
A route table refers to the list of routing entries on a VRouter in an Alibaba Cloud VPC. You can create/delete any route tables in a VPC.
In Alibaba Cloud VPCs, only custom route tables can be created and deleted by users. The default route table associated with each VPC cannot be deleted, although custom routing entries within it can be modified. This limitation ensures the integrity of essential VPC networking components.
Which of the following database engines are compatible with RDS? (Choose three.)
Alibaba Cloud RDS supports several popular database engines, including MySQL, PostgreSQL, and SQL Server. PPAS (PostgreSQL Plus Advanced Server) is also supported but not Sybase, which is not available as an RDS option on Alibaba Cloud.
Ivory
3 days agoIluminada
1 months agoCarissa
1 months agoMalcom
2 months agoGlory
2 months agoRodolfo
2 months agoTabetha
3 months agoKayleigh
3 months agoNidia
3 months agoAmos
3 months agoEdda
4 months agoMakeda
4 months agoAngelyn
4 months agoShelton
5 months agoHuey
5 months agoGail
5 months agoGregoria
5 months agoGerman
5 months agoJusta
6 months agoJacquelyne
6 months agoSarah
6 months agoLashon
6 months agoVashti
6 months agoMalcom
7 months agoGlory
7 months agoLuis
7 months agoFidelia
7 months agoKristal
7 months agoDustin
8 months agoColette
8 months agoAmie
8 months agoKeshia
8 months agoIzetta
9 months agoLouis
10 months agoChantell
10 months ago