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| Section | Objectives |
|---|---|
| Topic 1: Operations | - Monitoring and performance management
|
| Topic 2: Deployment | - Cloud provisioning and migration
|
| Topic 3: Troubleshooting | - Cloud connectivity issues
|
| Topic 4: Security | - Data protection and compliance
|
| Topic 5: Cloud Architecture and Design | - Capacity planning and design principles
|
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問題 #50
A company recently experienced a power outage that lasted 30 minutes. During this time, a whole rack of servers was inaccessible, even though the servers did not lose power.
Which of the following should be investigated FIRST?
答案：B
解題說明：
Explanation
If a whole rack of servers was inaccessible during a power outage, even though the servers did not lose power, it is likely that the switch that connects them to the network lost power. Without network connectivity, the servers would not be able to communicate with other devices or services. The administrator should investigate the switch power source and ensure it has a backup power supply or UPS.
問題 #51
A cloud administrator has deployed a website and needs to improve the site security to meet requirements. The website architecture is designed to have a DBaaS in the back end and autoscaling instances in the front end using a load balancer to distribute the request. Which of the following will the cloud administrator MOST likely use?
答案：B
解題說明：
Explanation
A WAF (web application firewall) is a type of firewall that protects web applications from common web-based attacks, such as SQL injection, cross-site scripting, and denial-of-service. A WAF can be deployed on the load balancer or on the web servers to filter and block malicious requests before they reach the application or the database. A WAF is the most likely option to improve the site security in this scenario, as it can prevent attacks that target the web application layer.
References:
Web Application Firewall (WAF) - AWS WAF, AWS Firewall Manager, and AWS Shield Advanced What is a Web Application Firewall (WAF)?
Web Application Firewall (WAF) - Oracle Cloud Infrastructure
問題 #52
A systems administrator is configuring network management but is concerned about confidentiality. Which of the following should the administrator configure to address this concern?
答案：C
問題 #53
A cloud administrator has been using a custom VM deployment script. After three months of use, the script no longer joins the LDAP domain. The cloud administrator verifies the account has the correct permissions. Which of the following is the MOST likely cause of the failure?
答案：D
解題說明：
An expired password is the most likely cause of the failure of a custom VM deployment script that no longer joins the LDAP domain. LDAP (Lightweight Directory Access Protocol) is a protocol that allows access and management of directory services, such as user accounts, groups, permissions, etc., over a network. LDAP can be used to authenticate and authorize users or devices to access network resources or systems. An expired password is a password that has reached its validity period and needs to be changed or renewed. An expired password can prevent users or devices from joining or accessing an LDAP domain, as it may indicate that the account is inactive, compromised, or outdated.
問題 #54
A cloud administrator is reviewing the annual contracts for all hosted solutions. Upon review of the contract for the hosted mail solution, the administrator notes the monthly subscription rate has increased every year.
The provider has been in place for ten years, and there is a large amount of data being hosted. Which of the following is a barrier to switching providers?
答案：B
解題說明：
The correct answer is B. Vendor lock-in. Vendor lock-in is a situation where a customer becomes dependent on a certain cloud provider and cannot easily switch to another provider without significant costs or disruptions. This can happen when the customer uses features or services that are only available from that specific provider, or when the customer has a large amount of data stored with the provider that is difficult to migrate. According to the web search results, vendor lock-in is a common concern in cloud computing1234. A service level agreement, a memorandum of understanding, and encrypted data are not barriers to switching providers, as they do not create a dependency on a specific provider or make it difficult to move data. For more information on vendor lock-in and how to avoid it, you can refer to the Cloudflare website1 or the Seagate blog4.
問題 #55
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