Question # 1 After a hardware upgrade on a private cloud system, the systems administrator notices a considerable drop in network performance. Which of the following is MOST likely the cause? A. The driver B. The memory C. The cluster placementD. The CPU
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A. The driver
Answer Description Explanation:
The driver is the most likely cause of the drop in network performance after a hardware upgrade on a private cloud system. A driver is a software component that enables communication and interaction between hardware devices and operating systems or applications. A driver may need to be updated or reinstalled after a hardware upgrade to ensure compatibility and functionality. If the driver is outdated, missing, or corrupted, it may affect the network performance of the system.
Question # 2 A DevOps administrator is designing a new machine-learning platform. The application needs to be portable between public and private clouds and should be kept as small as possible. Which of the following approaches would BEST meet these requirements? A. Virtual machines B. Software as a serviceC. Serverless computingD. Containers
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D. Containers
Answer Description Explanation:
Containers are the best approach to design a new machine-learning platform that needs to be portable between public and private clouds and should be kept as small as possible. Containers are isolated environments that can run applications and their dependencies without interfering with other processes or systems. Containers are lightweight, portable, and scalable, which makes them ideal for machine-learning applications. Containers can be moved easily between public and private clouds without requiring any changes or modifications. Containers can also reduce the size and complexity of applications by using only the necessary components and libraries.
Question # 3 A systems administrator is trying to establish an RDP session from a desktop to a server in the cloud. However, the connection appears to be refused even through the VM is responding to ICMP echo requests. Which of the following should the administrator check FIRST? A. The firewallB. The subnetC. The gatewayD. The services
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A. The firewall
Answer Description Explanation:
The firewall is the first thing that the administrator should check if an RDP (Remote Desktop Protocol) session from a desktop to a server in the cloud is refused even though the VM is responding to ICMP echo requests. A firewall is a device or software that controls the incoming and outgoing network traffic based on predefined rules or policies. A firewall may block RDP connections by default or require specific ports or rules to be opened or configured.
Question # 4 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? A. Incorrect encryption ciphersB. Broken trust relationshipC. Invalid certificatesD. Expired password
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D. Expired password
Answer Description Explanation:
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.
Question # 5 An administrator has been informed that some requests are taking a longer time to respond than other requests of the same type. The cloud consumer is using multiple network service providers and is performing link load balancing for bandwidth aggregation. Which of the following commands will help the administrator understand the possible latency issues? A. pingB. ipconfigC. tracerouteD. netstat
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A. ping
Answer Description Explanation:
Ping is the command that will help the administrator understand the possible latency issues between different network service providers and link load balancing for bandwidth aggregation. Ping is a network utility that sends packets of data to a specific IP address or hostname and measures the time it takes for them to be sent back (round-trip time). Ping can help to test connectivity, availability, and latency of network devices or systems. Ping can help to understand latency issues by comparing the round-trip times between different network service providers and link load balancing devices, and identifying any delays or variations in response times.
Question # 6 A cloud administrator who is troubleshooting DNS issues discovers zone transfers are not occurring between the primary and secondary name servers due to an error in the serial numbers. Which of the following records should the administrator query for the serial number? A. PTRB. TXTC. SOAD. SRV
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C. SOA
Answer Description Explanation:
SOA stands for Start of Authority, and it is a type of DNS record that contains information about a DNS zone, such as the name of the primary name server, the email address of the zone administrator, the serial number of the zone, and other parameters. The serial number is used to indicate when a zone has been updated, and it is incremented by the primary name server whenever a change is made to the zone data. The secondary name servers use the serial number to determine if they need to request a zone transfer from the primary name server to synchronize their data.
References: [CompTIA Cloud+ Study Guide], page 207.
Question # 7 While investigating network traffic, a cloud administrator discovers the monthly billing has increased substantially. Upon further review, it appears the servers have been compromised, and sensitive files have been exfiltrated. Which of the following can be implemented to maintain data confidentiality? A. HardeningB. IAMC. EncryptionD. IPSec
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C. Encryption
Answer Description Explanation:
The best method to maintain data confidentiality after discovering that the servers have been compromised and sensitive files have been exfiltrated is encryption. Encryption is a process that transforms data into an unreadable format using an algorithm and a key. Encryption can protect data at rest, in transit, or in use from unauthorized access, tampering, or leakage. The systems administrator should encrypt the sensitive files and their backups using strong encryption algorithms and keys, and also encrypt the network traffic using protocols such as SSL or IPSec. Reference: CompTIA Cloud+ Certification Exam Objectives, Domain 2.0 Security, Objective 2.5 Given a scenario, apply data security techniques in the cloud.
Question # 8 A marketing team is using a SaaS-based service to send emails to large groups of potential customers. The internally managed CRM system is configured to generate a list of target customers automatically on a weekly basis, and then use that list to send emails to each customer as part of a marketing campaign. Last week, the first email campaign sent emails successfully to 3,000 potential customers. This week, the email campaign attempted to send out 50,000 emails, but only 10,000 were sent. Which of the following is the MOST likely reason for not sending all the emails? A. API request limitB. Incorrect billing accountC. Misconfigured auto-scalingD. Bandwidth limitation
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A. API request limit
Answer Description Explanation:
An API request limit is a restriction on the number of requests that can be made to a web service or application programming interface (API) within a certain time period. API request limits are often used by SaaS-based services to control the usage and traffic of their customers and prevent overloading or abuse of their resources. An API request limit can cause a failure to send all the emails if the marketing team exceeds the number of requests allowed by the SaaS-based service in a week. The service may reject or block any requests that go beyond the limit, resulting in fewer emails being sent than expected. References: CompTIA Cloud+ Certification Exam Objectives, page 13, section 2.5
Reference: [Reference: https://developers.google.com/analytics/devguides/config/mgmt/v3/limits-quotas, ]
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