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Java Object Oriented Language Notation

An application running in a VPC needs to access instances owned by a different account and running in a VPC in a different Region. For compliance purposes, the traffic must not traverse the public internet. How should an Administrator configure network routing to meet these requirements?

From one account, create a VPC peering request. After an Administrator from the other account accepts the request, add routes in the route tables for each VPC that point to the CIDR block of the peered VPC.

Within each account, create a custom routing table containing routes that point to the other account’s virtual private gateway.

Within each account, set up a NAT gateway in a public subnet in its respective VPC. Then, using the public IP address from the NAT gateway, enable routing between the two VPCs.

From one account, configure a Site-to-Site VPN connection between the VPCs. Within each account, add routes in the VPC route tables that point to the CIDR block of the remote VPC.

You are implementing security group policies for a web application running on AWS. An Elastic Load Balancer connects to a fleet of Amazon EC2 instances that connect to an Amazon RDS database over port 1521. The security groups are named elbSG, ec2SG, and rdsSG, respectively. How should these security groups be implemented?

elbSG: allow port 80 and 443 from 0.0.0.0/0; ec2SG: allow port 443 from elbSG; rdsSG: allow port 1521 from ec2SG.

elbSG: allow port 80 and 443 from 0.0.0.0/0; ec2SG: allow port 80 and 443 from elbSG and rdsSG; rdsSG: allow port 1521 from ec2SG.

elbSG: allow port 80 and 443 from ec2SG; ec2SG: allow port 80 and 443 from elbSG and rdsSG; rdsSG: allow port 1521 from ec2SG.

elbSG: allow port 80 and 443 from ec2SG; ec2SG: allow port 443 from elbSG; rdsSG: allow port 1521 from elbSG.

An ecommerce company wants to lower costs on its nightly jobs that aggregate the current day's sales and store the results in Amazon S3. The jobs run on multiple on-demand instances, and the jobs take just under 2 hours to complete. The jobs can run at any time during the night. If the job fails for any reason, it needs to be started from the beginning. Which solution is the MOST cost-effective based on these requirements?

Submit a request for a Spot block.

Submit a request for all Spot Instances.

Use a mixture of On-Demand and Spot Instances.

You have some code that you would like to run occasionally and need to minimize costs. The completion time is typically under 10 minutes. Which solution is cost-effective and operationally efficient?

Run the code using an AWS Lambda function

Run the code on an Amazon EC2 instance

Run the code on an Amazon ECS task

How can you create a hierarchy that mimics a filesystem in Amazon S3?

Create buckets within other buckets

Upload objects within other objects

Use lifecycle rules to tier your data

An Architect is designing an application that will use hundreds of EC2 instances across multiple availability zones. A shared filesystem is required that can be mounted by all instances. Which storage service is suitable for this requirement?

Amazon Elastic File System (EFS)

Amazon Elastic Block Store (EBS)

Amazon Simple Storage Service (S3)

How can you control access to files and directories in Amazon EFS filesystems?

Using user and group-level permissions

Your organization has a pre-production VPC and production VPC. You need to be able to setup routing between these VPCs using private IP addresses. How can this be done?

Add a route table entry for the opposite VPCs Internet gateway

Use an Egress-only Internet gateway

You need to apply a firewall to a group of EC2 instances launched in multiple subnets. Which option should be used?

NACL (Network Access Control Lists)

How should subnets be used for fault tolerance?

Launch EC2 instances into subnets created in different availability zones

Create subnets that span multiple availability zones

Create subnets that have multiple Internet Gateways

Launch EC2 instances into subnets attached to a region

An attack has been identified from a group of IP addresses. What’s the quickest way to block these specific IP addresses from reaching the instances in your subnets?

Apply a Network ACL to the subnets involved with a deny rule

Apply a Security Group to the instances in the subnets with a deny rule

Change the IP addresses used by the instances

An Amazon RDS database is experiencing heavy demand and is slowing down. Most database calls are reads. What is the simplest way to scale the database without downtime?

Change to an instance type with more resources

A new application requires a database that can allow writes to DB instances in multiple availability zones with read after write consistency. Which solution meets these requirements?

Amazon Aurora Cross-Region Replicas

To improve security in your AWS account you have decided to enable multi-factor authentication (MFA). You can authenticate using an MFA device in which two ways? (2 choices)

Through the AWS Management Console

Your company would like to restrict the ability of most users to change their own passwords whilst continuing to allow a select group of users within specific user groups. What is the best way to achieve this? (choose 2)

Under the IAM Password Policy deselect the option to allow users to change their own passwords

Create an IAM Policy that grants users the ability to change their own password and attach it to the groups that contain the users

Create an IAM Role that grants users the ability to change their own password and attach it to the groups that contain the users

Create an IAM Policy that grants users the ability to change their own password and attach it to the individual user accounts

Disable the ability for all users to change their own passwords using the AWS Security Token Service

The financial institution you are working for stores large amounts of historical transaction records. There are over 25TB of records and your manager has decided to move them into the AWS Cloud. You are planning to use Snowball as copying the data would take too long. Which of the statements below are true regarding Snowball? (choose 2)

Uses a secure storage device for physical transportation

Petabyte scale data transport solution for transferring data into or out of AWS

Snowball can import to S3 but cannot export from S3

Can be used with multipart upload

Snowball can be used for migration on-premise to on-premise

An event in CloudTrail is the record of an activity in an AWS account. What are the two types of events that can be logged in CloudTrail? (choose 2)

Management Events which are also known as control plane operations

Data Events which are also known as data plane operations

System Events which are also known as instance level operations

Platform Events which are also known as hardware level operations

API events which are also known as CloudWatch events

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Practice Problem

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Armaan VERMA

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50 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

S3 is what kind of storage?

Block

NFS

EFS

Object

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dedicated hosts costs cheaper than reserved instances?

True

False

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

IAM roles can also be assigned to resources?

False

True

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

O365, Adobe CC are examples of...............?

SaaS

PaaS

IaaS

FaaS

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The AWS Cloud Platform works on ........................ responsibility model?

Shared

User

AWS

All of the above

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

in IAM, groups can be nested?

True

False

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

AWS Lamda is an example of ................. service.

IaaS

FaaS

PaaS

CaaS

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50 questions

S3 is what kind of storage?

Dedicated hosts costs cheaper than reserved instances?

IAM roles can also be assigned to resources?

O365, Adobe CC are examples of...............?

The AWS Cloud Platform works on ........................ responsibility model?

in IAM, groups can be nested?

AWS Lamda is an example of ................. service.

AWS Cloud Watch triggers alarm through the following service?

EC2 Security Groups are example of ........................ service.

AWS Trusted Advisor is a service to ensure we meet the governing and compliance requirements?

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