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NEW QUESTION # 92
Which of the following best describes "containerization" in the context of cloud computing?
Answer: A
Explanation:
Containerization packages an application and its dependencies into a lightweight, portable unit (a container) that shares the host operating system's kernel, unlike virtual machines which each run a full separate OS.
NEW QUESTION # 93
Scott Herman works as a cloud security engineer in an IT company. His organization has deployed a 3-tier web application in the same Google Cloud Virtual Private Cloud. Each tier (web interface (UI), API, and database) is scaled independently of others. Scott Herman obtained a requirement that the network traffic should always access the database using the API and any request coming directly from the web interface to the database should not be allowed. How should Scott configure the network with minimal steps?
Answer: C
Explanation:
In Google Cloud Virtual Private Cloud (VPC), network tags are used to apply firewall rules to specific instances. Scott can use these tags to control the traffic flow between the tiers of the web application. Here's how he can configure the network:
* Assign Network Tags: Assign unique network tags to the instances in each tier - for example, 'ui-tag' for the web interface, 'api-tag' for the API, and 'db-tag' for the database.
* Create Firewall Rules: Create firewall rules that allow traffic from the API tier to the database tier by specifying the 'api-tag' as the source filter and 'db-tag' as the target filter.
* Restrict Direct Access: Ensure that there are no rules allowing direct traffic from the 'ui-tag' to the
'db-tag', effectively blocking any direct requests from the web interface to the database.
* Apply Rules: Apply the firewall rules to the respective instances based on their tags.
By using network tags and firewall rules, Scott can ensure that the database is only accessible via the API, and direct access from the UI is not permitted.
References:
* Google Cloud documentation on setting up firewall rules and using network tags1.
NEW QUESTION # 94
Georgia Lyman works as a cloud security engineer in a multinational company. Her organization uses cloud-based services. Its virtualized networks and associated virtualized resources encountered certain capacity limitations that affected the data transfer performance and virtual server communication. How can Georgia eliminate the data transfer capacity thresholds imposed on a virtual server by its virtualized environment?
Answer: D
Explanation:
Virtual servers can face performance limitations due to the overhead introduced by the hypervisor in a virtualized environment. To improve data transfer performance and communication between virtual servers, Georgia can eliminate the data transfer capacity thresholds by allowing the virtual server to bypass the hypervisor and directly access the I/O card of the physical server. This technique is known as Single Root I/O Virtualization (SR-IOV), which allows virtual machines to directly access network interfaces, thereby reducing latency and improving throughput.
* Understanding SR-IOV: SR-IOV enables a network interface card (NIC) to appear as multiple separate physical devices to the virtual machines, allowing them to bypass the hypervisor.
* Performance Benefits: By bypassing the hypervisor, the virtual server can achieve near-native performance for network I/O, eliminating bottlenecks and improving data transfer rates.
* Implementation: This requires hardware support for SR-IOV and appropriate configuration in the hypervisor and virtual machines.
References
* VMware SR-IOV
* Intel SR-IOV Overview
NEW QUESTION # 95
SevocSoft Private Ltd. is an IT company that develops software and applications for the banking sector. The security team of the organization found a security incident caused by misconfiguration in Infrastructure-as-Code (IaC) templates. Upon further investigation, the security team found that the server configuration was built using a misconfigured IaC template, which resulted in security breach and exploitation of the organizational cloud resources. Which of the following would have prevented this security breach and exploitation?
Answer: C
Explanation:
Scanning of Infrastructure-as-Code (IaC) templates can help identify misconfigurations, security vulnerabilities, and compliance issues before deployment. By scanning the IaC templates for potential security risks, the organization could have detected the misconfiguration that led to the security breach and exploitation of cloud resources, thereby preventing the incident from occurring.
NEW QUESTION # 96
Chris Noth has been working as a senior cloud security engineer in CloudAppSec Private Ltd. His organization has selected a DRaaS (Disaster Recovery as a Service) company to provide a disaster recovery site that is fault tolerant and consists of fully redundant equipment with network connectivity and real-time data synchronization. Thus, if a disaster strikes Chris' organization, failover can be performed to the disaster recovery site with minimal downtime and zero data loss. Based on the given information, which disaster recovery site is provided by the DRaaS company to Chris' organization?
Answer: A
Explanation:
* Disaster Recovery as a Service (DRaaS): DRaaS is a third-party service that provides organizations with a secondary site infrastructure, which employs cloud computing for application and data recovery from synchronous or asynchronous replication1.
* Fault Tolerance and Redundancy: A fault-tolerant disaster recovery site with fully redundant equipment ensures that all critical systems and components have backups ready to take over in case of failure1.
* Real-Time Data Synchronization: This feature ensures that data is continuously mirrored to the disaster recovery site, allowing for real-time recovery and zero data loss during failover1.
* Hot Site: A hot site is a fully operational offsite data center equipped with hardware and software, network connectivity, and real-time data synchronization. It is ready to assume operation at a moment's notice, which aligns with the description provided1.
* Minimal Downtime: The use of a hot site allows for minimal downtime during a disaster, as the site is already running and can take over immediately without the need to set up or configure equipment1.
References:
* Flexential's explanation of Disaster Recovery as a Service (DRaaS)1.
NEW QUESTION # 97
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