Question # 1 Which of the following actions should a systems administrator perform during the containment phase of a security incident in the cloud? A. Deploy a new instance using a known-good base image.B. Configure a firewall rule to block the traffic on the affected instance.C. Perform a forensic analysis of the affected instance.D. Conduct a tabletop exercise involving developers and systems administrators.
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B. Configure a firewall rule to block the traffic on the affected instance.
Answer Description Explanation:
Configuring a firewall rule to block the traffic on the affected instance is what the administrator should perform during the containment phase of a security incident in the cloud. A security incident is an event or situation that affects or may affect the confidentiality, integrity, or availability of cloud resources or data. A security incident response is a process of managing and resolving a security incident using various phases, such as identification, containment, eradication, recovery, etc. The containment phase is where the administrator tries to isolate and prevent the spread or escalation of the security incident. Configuring a firewall rule to block the traffic on the affected instance can help to contain a security incident by cutting off any communication or interaction between the instance and other systems or networks, which may stop any malicious or unauthorized activity or access.
Question # 2 A systems administrator wants to verify the word "qwerty" has not been used as a password on any of the administrative web consoles in a network. Which of the following will achieve this goal?
A. A service availability scanB. An agent-based vulnerability scanC. A default and common credentialed scanD. A network port scan
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C. A default and common credentialed scan
Answer Description Explanation:
A default and common credentialed scan is what the administrator should use to verify the word “qwerty” has not been used as a password on any of the administrative web consoles in a network. A credentialed scan is a type of vulnerability scan that uses valid credentials or accounts to access and scan target systems or devices. A credentialed scan can provide more accurate and detailed results than a non-credentialed scan, as it can perform more actions and tests on target systems or devices. A default and common credentialed scan is a type of credentialed scan that uses default or common credentials or accounts, such as admin/admin, root/root, etc., to access and scan target systems or devices. A default and common credentialed scan can help to identify weak or insecure passwords on administrative web consoles, such as “qwerty”, and recommend stronger passwords.
Question # 3 A systems administrator is planning to deploy a database cluster in a virtualization environment. The administrator needs to ensure the database nodes do not exist on the same physical host. Which of the following would best meet this requirement? A. OversubscriptionB. Anti-affinityC. A firewallD. A separate cluster
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B. Anti-affinity
Answer Description Explanation:
Anti-affinity is a rule that specifies that certain virtual machines should not run on the same physical host. This can help to improve availability and performance by avoiding single points of failure and resource contention. For example, if the database nodes are running on the same host and the host fails, the entire database cluster will be unavailable. By using anti-affinity rules, the systems administrator can ensure the database nodes are distributed across different hosts in the virtualization environment. References: CompTIA Cloud+ CV0-003 Study Guide, Chapter 2: Deploying a Cloud Environment, page 76.
Question # 4 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 # 5 A system administrator is migrating a bare-metal server to the cloud. Which of the following types of migration should the systems administrator perform to accomplish this task? A. V2VB. V2PC. P2PD. P2V
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D. P2V
Answer Description Explanation:
P2V (Physical to Virtual) is a type of migration that converts a physical server into a virtual machine (VM). P2V migration can help to move a bare-metal server to the cloud by creating an image of its disk and configuration and uploading it to a cloud platform that supports VM creation from custom images.
Question # 6 A company is concerned about the security of its data repository that contains customer PII. A systems administrator is asked to deploy a security control that will prevent the exfiltration of such data. Which of the following should the systems administrator implement? A. DLPB. WAFC. FIMD. ADC
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A. DLP
Answer Description Explanation:
Reference: [Reference: https://cloud.google.com/blog/products/identity-security/4-steps-to-stop-data-exfiltration-with-google-cloud, , Implementing DLP (Data Loss Prevention) is the best solution to prevent the exfiltration of customer PII (Personally Identifiable Information) from a data repository. DLP is a security control that monitors, detects, and blocks sensitive data from leaving or being accessed by unauthorized parties. DLP can be applied at different levels, such as network, endpoint, storage, or cloud. DLP can help to protect customer PII from being leaked, stolen, or compromised.]
Question # 7 An organization is developing a new solution for hosting an external website. The systems administrator needs the ability to manage the OS. Which of the following methods would be MOST suitable to achieve this objective? A. Deploy web servers into an laaS provider.B. Implement a cloud-based VDI solution.C. Provision web servers in a container environment.D. Use PaaS components in the cloud to implement the product.
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A. Deploy web servers into an laaS provider.
Answer Description Explanation:
Deploying web servers into an IaaS (Infrastructure as a Service) provider is the most suitable method to achieve the objective of hosting an external website and managing the OS. IaaS is a cloud service model that provides basic computing resources such as servers, storage, network, etc., to the customers. The customers have full control and flexibility over these resources and can install and configure any software they need on them. IaaS is suitable for hosting web servers and managing the OS, as it allows the customers to choose their preferred OS, web server software, settings, etc., and customize them according to their needs.
Question # 8 A cloud administrator is configuring several security appliances hosted in the private laaS environment to forward the logs to a central log aggregation solution using syslog. Which of the following firewall rules should the administrator add to allow the web servers to connect to the central log collector? A. Allow UDP 161 outbound from the web servers to the log collector .B. Allow TCP 514 outbound from the web servers to the log collector.C. Allow UDP 161 inbound from the log collector to the web servers .D. Allow TCP 514 inbound from the log collector to the web servers .
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B. Allow TCP 514 outbound from the web servers to the log collector.
Answer Description Explanation:
As mentioned in the question, the security appliances are using syslog to forward the logs to a central log aggregation solution. According to the web search results, syslog is a protocol that runs over UDP port 514 by default, or TCP port 6514 for secure and reliable transport1. However, some implementations of syslog can also use TCP port 514 for non-secure transport2. Therefore, to allow the web servers to connect to the central log collector using syslog over TCP, the firewall rule should allow TCP 514 outbound from the web servers to the log collector.
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