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Reliable CLF-C02 Study Guide & CLF-C02 Exam Book

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Amazon CLF-C02 Exam Syllabus Topics:

Topic
Details

Topic 1

Billing, Pricing, and Support: This section contrasts pricing methods and budgeting resources management. It also tests understanding of billing methods, identifying support options, and technical resources.

Topic 2

Security and Compliance: This section involves understanding the shared responsibility framework of AWS in addition to compliance and governance. It also involves exploring the management capabilities of AWS by exploring its security capabilities.

Topic 3

Cloud Concepts: This section involves knowledge of value proposition and exploring design rules of AWS. It covers the advantages of techniques for moving over to AWS cloud and developing a good understanding of cloud economics.

Topic 4

Cloud Technology and Services: Describe ways to access AWS services in AWS Cloud and explore connectivity options. It deals with defining the global infrastructure of AWS, computing services, and network services.

Amazon AWS Certified Cloud Practitioner Sample Questions (Q152-Q157):

NEW QUESTION # 152
A company wants a time-series database service that makes it easier to store and analyze trillions of events each day.
Which AWS service will meet this requirement?

A. Amazon Neptune
B. Amazon DocumentDB (with MongoDB compatibility)
C. Amazon Forecast
D. Amazon Timestream

Answer: D

Explanation:
Amazon Timestream is a fast, scalable, and serverless time-series database service for IoT and other operational applications that makes it easy to store and analyze trillions of events per day up to 1,000 times faster and at as little as 1/10th the cost of relational databases1. Amazon Timestream saves you time and cost in managing the lifecycle of time series data, and its purpose-built query engine lets you access and analyze recent and historical data together with a single query1. Amazon Timestream has built-in time series analytics functions, helping you identify trends and patterns in near real time1.
The other options are not suitable for storing and analyzing trillions of events per day. Amazon Neptune is a graph database service that supports highly connected data sets. Amazon Forecast is a machine learning service that generates accurate forecasts based on historical dat a. Amazon DocumentDB (with MongoDB compatibility) is a document database service that supports MongoDB workloads.
Reference:
1: Time Series Database - Amazon Timestream - Amazon Web Services

NEW QUESTION # 153
According to security best practices, how should an Amazon EC2 instance be given access to an Amazon S3 bucket?

A. Modify the S3 bucket policy so that any service can upload to it at any time.
B. Hard code an IAM user's secret key and access key directly in the application, and upload the file.
C. Have the EC2 instance assume a role to obtain the privileges to upload the file.
D. Store the IAM user's secret key and access key in a text file on the EC2 instance, read the keys, then upload the file.

Answer: C

Explanation:
According to security best practices, the best way to give an Amazon EC2 instance access to an Amazon S3 bucket is to have the EC2 instance assume a role to obtain the privileges to upload the file. A role is an AWS Identity and Access Management (IAM) entity that defines a set of permissions for making AWS service requests. You can use roles to delegate access to users, applications, or services that don't normally have access to your AWS resources. For example, you can create a role that allows EC2 instances to access S3 buckets, and then attach the role to the EC2 instance. This way, the EC2 instance can assume the role and obtain temporary security credentials to access the S3 bucket. This method is more secure and scalable than storing or hardcoding IAM user credentials on the EC2 instance, as it avoids the risk of exposing or compromising the credentials. It also allows you to manage the permissions centrally and dynamically, and to audit the access using AWS CloudTrail. For more information on how to create and use roles for EC2 instances, see Using an IAM role to grant permissions to applications running on Amazon EC2 instances1 The other options are not recommended for security reasons. Hardcoding or storing IAM user credentials on the EC2 instance is a bad practice, as it exposes the credentials to potential attackers or unauthorized users who can access the instance or the application code. It also makes it difficult to rotate or revoke the credentials, and to track the usage of the credentials. Modifying the S3 bucket policy to allow any service to upload to it at any time is also a bad practice, as it opens the bucket to potential data breaches, data loss, or data corruption. It also violates the principle of least privilege, which states that you should grant only the minimum permissions necessary for a task.

NEW QUESTION # 154
A company needs to store data across multiple Availability Zones in an AWS Region. The data will not be accessed regularly but must be immediately retrievable.
Which Amazon Elastic File System (Amazon EFS) storage class meets these requirements MOST cost effectively?

A. EFS One Zone
B. EFS Standard-Infrequent Access(EFS Standard-IA)
C. EFS One Zone-Infrequent Access (EFS One Zone-IA)
D. EFS Standard

Answer: B

Explanation:
EFS Standard-Infrequent Access (EFS Standard-IA) is the storage class that meets the requirements of storing data across multiple Availability Zones in an AWS Region, that will not be accessed regularly but must be immediately retrievable, most cost-effectively. EFS Standard-IA is designed for files that are accessed less frequently, but still require the same high performance, low latency, and high availability as EFS Standard. EFS Standard-IA has a lower storage cost than EFS Standard, but charges a small additional fee for each access. EFS One Zone and EFS One Zone-IA store data in a single Availability Zone, which reduces the availability and durability compared to EFS Standard and EFS Standard-IA.

NEW QUESTION # 155
A company's IT team is managing MySQL database server clusters. The IT team has to patch the database and take backup snapshots of the data in the clusters. The company wants to move this workload to AWS so that these tasks will be completed automatically.
What should the company do to meet these requirements?

A. Migrate all the MySQL database data to Amazon S3.
B. Use an AWS Cloud Form at ion template to deploy MySQL database servers on Amazon EC2 instances.
C. Use Amazon RDS with a MySQL database.
D. Deploy MySQL database server clusters on Amazon EC2 instances.

Answer: C

Explanation:
Explanation
The company should use Amazon RDS with a MySQL database to meet the requirements of moving its workload to AWS so that the tasks of patching the database and taking backup snapshots of the data in the clusters will be completed automatically. Amazon RDS is a managed service that simplifies the setup, operation, and scaling of relational databases in the AWS Cloud. Amazon RDS automates common database administration tasks such as patching, backup, and recovery. Amazon RDS also supports MySQL and other popular database engines5

NEW QUESTION # 156
Which option is a perspective that includes foundational capabilities of the AWS Cloud Adoption Framework (AWS CAF)?

A. Reliability
B. Performance efficiency
C. Operations
D. Sustainability

Answer: C

Explanation:
Operations is an option that is a perspective that includes foundational capabilities of the AWS Cloud Adoption Framework (AWS CAF). Operations is one of the six perspectives of the AWS CAF, along with business, people, governance, platform, and security. Operations focuses on the processes and procedures to support the ongoing management and maintenance of the cloud-based IT assets. It covers topics such as monitoring, backup and recovery, change management, incident management, and automation5.
Sustainability is not a perspective of the AWS CAF, but a concept that refers to the ability of a system to operate in an environmentally friendly and socially responsible manner. Performance efficiency is not a perspective of the AWS CAF, but a pillar of the AWS Well-Architected Framework. It focuses on using the right resources and services for the workload, monitoring performance, and continuously improving the efficiency of the solution. Reliability is not a perspective of the AWS CAF, but a pillar of the AWS Well- Architected Framework. It focuses on the ability of a system to recover from infrastructure or service disruptions, dynamically acquire computing resources to meet demand, and mitigate disruptions such as misconfigurations or transient network issues.

NEW QUESTION # 157
......

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