QUESTION: 37

Shell Solutions Pvt. Ltd. is an IT company that develops software products and services for

BPO companies. The organization became a victim of a cybersecurity attack. Therefore, it migrated its applications and workloads from on-premises to a cloud environment. Immediately, the organization established an incident response team to prevent such incidents in the future. Using intrusion detection system and antimalware software, the incident response team detected a security incident and mitigated the attack. The team recovered the resources from the incident and identified various vulnerabilities and flaws in their cloud environment.
Which step of the incident response lifecycle includes the lessons learned from previous attacks and analyzes and documents the incident to understand what should be improved?

Analysis
Post-mortem
Coordination and Information Sharing
Preparation

Answer(s): B

Explanation:

The post-mortem step of the incident response lifecycle is where the incident response team reviews and documents the incident to understand what happened, what was done to intervene, and what can be improved for the future.

1. Incident Review: The team conducts a thorough review of the incident, including how the attack occurred, what vulnerabilities were exploited, and how the team responded.

2. Lessons Learned: The team identifies lessons learned from the incident, which includes analyzing the effectiveness of the response and identifying areas for improvement.

3. Documentation: All findings and lessons learned are documented. This documentation serves as a historical record and a learning tool for improving future incident response efforts.

4. Improvement Plans: Based on the post-mortem analysis, the team develops plans to improve security measures, response protocols, and recovery strategies to better prepare for future incidents.

Reference:

The post-mortem phase is a critical component of the incident response lifecycle. It ensures that each security incident is used as an opportunity to strengthen the organization's defenses and response capabilities. This phase often leads to updates in policies, procedures, and technologies to mitigate the risk of similar incidents occurring in the future.

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QUESTION: 38

Rufus Sewell, a cloud security engineer with 5 years of experience, recently joined an MNC as a senior cloud security engineer. Owing to the cost-effective security features and storage services provided by AWS, his organization has been using AWS cloud-based services since 2014. To create a RAID, Rufus created an Amazon EBS volume for the array and attached the EBS volume to the instance where he wants to host the array. Using the command line, Rufus successfully created a RAID. The array exhibits noteworthy performance both in read and write operations with no overhead by parity control and the entire storage capacity of the array is used.

The storage capacity of the RAID created by Rufus is equal to the sum of disk capacity in the set, but the array is not fault tolerant. It is ideal for non-critical cloud data storage that must be read/written at a high speed.
Based on the given information, which of the following RAID is created by Rufus?

RAID 0
RAID 5
RAID 1
RAID 6

Answer(s): A

Explanation:

Rufus has created a RAID 0 array, which is characterized by the following features:

1. Performance: RAID 0 is known for its high performance in both read and write operations because it uses striping, where data is split evenly across two or more disks without parity information.

2. No Overhead by Parity Control: RAID 0 does not use parity control, which means there is no redundancy in the data. This contributes to its high performance but also means there is no fault tolerance.

3. Storage Capacity: The total storage capacity of a RAID 0 array is equal to the sum of all the disk capacities in the set, as there is no disk space used for redundancy.

4. Lack of Fault Tolerance: RAID 0 is not fault-tolerant; if one disk fails, all data in the array is lost. Therefore, it is not recommended for critical data storage.

5. Use Case: It is ideal for non-critical data that requires high-speed reading and writing, such as temporary files or cache data.

Reference:

RAID 0 is often used to improve the performance of disk I/O (input/output) and is suitable for environments where speed is more critical than data redundancy. However, due to its lack of fault tolerance, it is not recommended for storing critical data that cannot be easily replaced or recovered.

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QUESTION: 39

Rachel McAdams works as a cloud security engineer in an MNC. A DRaaS company has provided a disasterrecovery site to her organization. The disaster recovery sites have partially redundant equipment with daily or weekly data synchronization provision; failover occurs within hours or days with minimum data loss. Based on this information, which of the following disaster recovery sites is provided by the DRaaS company to Rachel's organization?

Warm Site
Cold Site
Remote site
Hot Site

Answer(s): A

Explanation:

The description provided indicates that the disaster recovery site is a Warm Site. Here's why:

1. Partially Redundant Equipment: Warm sites are equipped with some of the system hardware, software, telecommunications, and power sources.

2. Data Synchronization: They have provisions for daily or weekly data synchronization, which aligns with the description given.

3. Failover Time: Failover to a warm site typically occurs within hours or days, as mentioned.

4. Minimum Data Loss: Due to the regular synchronization, there is minimal data loss in the event of a failover.

Reference:

A Warm Site is a type of disaster recovery site that sits between a hot site, which is fully equipped and ready to take over immediately, and a cold site, which is an empty data center that requires setup before use. The warm site's readiness and partial redundancy make it suitable for organizations that need a balance between cost and downtime.

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QUESTION: 40

Scott Herman works as a cloud security engineer in an IT company located in Ann Arbor, Michigan. His organization uses Office 365 Business Premium that provides Microsoft Teams, secure cloud storage, business email, premium Office applications across devices, advanced cyber threat protection, and device management.

Which of the following cloud computing service models does Microsoft Office 365 represent?

DaaS
laaS
PaaS
SaaS

Answer(s): D

Explanation:

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SaaS, or Software as a Service, is a cloud computing model where software applications are delivered over the internet. Users subscribe to the service rather than purchasing and installing software on individual devices. Microsoft Office 365 fits this model as it provides access to various applications such as Microsoft Teams, secure cloud storage, business email, and more through a subscription service. Users can access these services from any device, provided they have an internet connection.

Here's a breakdown of how Office 365 aligns with the SaaS model:

1. Subscription-Based: Office 365 operates on a subscription model, where users pay a recurring fee to use the service.

2. Cloud-Hosted Applications: The suite includes cloud-hosted versions of traditional Microsoft applications, as well as new tools like Microsoft Teams.

3. Managed by Provider: Microsoft manages the infrastructure, security, and updates for these applications, relieving users from these responsibilities.

4. Accessible from Anywhere: As a cloud service, Office 365 can be accessed from anywhere, on any device with internet connectivity.

5. Business Services: It includes business services like email and device management, which are typical features of SaaS offerings.

Reference:

Microsoft's description of Office 365 as a cloud-based service1.

Microsoft Azure's definition of SaaS, mentioning Office 365 as an example2.

Microsoft support page explaining Microsoft 365 as a subscription service3.

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