WorksheetsAWS-460-430
Total questions: 31
Worksheet time: 16mins
A user has configured ELB with Auto Scaling. The user temporarily suspended the Auto Scaling terminate process. What might the Availability Zone Rebalancing process (AZRebalance) conse-quently cause during this period?
Auto Scaling will keep launching instances in all AZs until the maximum instance number is reached.
AZ Rebalancing might now allow Auto Scaling to launch or terminate any instances.
AZ Rebalancing might allow the number instances in an Availability Zone to remain higher than the maximum size
It is not possible to suspend the terminate process while keeping the launch active.
If you specify only the general endpoint (autoscaling.amazonaws.com), Auto Scaling directs your request to the:
us-west-2 endpoint
eu-central-1.
eu-west-1 endpoint.
us-east-1 endpoint.
Which of the following statements is true about Auto Scaling?
You can only delete your Auto Scaling group but not your Auto Scaling setup.
If the Auto Scaling infrastructure is being deleted, it is not mandatory to delete the launch con-figuration.
You can only delete your Auto Scaling set up but not your Auto Scaling group.
If the Auto Scaling infrastructure is being deleted, it is mandatory to delete the launch configura-tion.
A placement group in Amazon EC2 can
place high memory instances in one logical group.
logically name and tag different tiers of the system (DB, application, business logic etc).
isolate any instance-type physically so that groups access local resources.
reduce network latency and increase network throughput
Which of the following comes before Auto Scaling group creation?
Creating the Auto Scaling launch config
Creating the Auto Scaling policy
Creating the Auto Scaling tags
Creating the Auto Scaling instance
Can a user depict CloudWatch metrics such as CPU utilization in % and Network I/O in bytes on a single graph?
No, a user cannot graph two separate metrics on the same graph.
Yes, a user can graph several metrics over time on a single graph.
No, a user cannot plot several metrics on a single graph since the units are different.
Yes, a user can graph multiple metrics on the same graph provided they are of the same instance in the same AZ.
In the context of sending metrics to CloudWatch using Amazon Kinesis, which of the following statements best describes the metric "PutRecord.Latency"?
It is the time taken per PutRecord operation, measured over the specified time period.
It is the number of successful records in a PutRecords operation per Amazon Kinesis stream, measured over the specified time period.
It is the time taken per PutRecords operation to calculate the statistics of the PutRecords opera-tions.
It is the number of successful PutRecord operations per Amazon Kinesis stream, measured over the specified time period.
Which of the CloudWatch services mentioned below is NOT a part of the AWS free tier?
10 alarms/month
1 million API request/month
10 metrics/month
15 detailed monitoring metrics
In which screen does a user select the Availability Zones while configuring Auto Scaling?
Auto Scaling Group Creation
Auto Scaling Instance Creation
Auto Scaling Launch config Creation
Auto Scaling Policy Creation
What is a placement group in Amazon EC2?
It is a logical grouping of EC2 instances within a single Availability Zone
It the edge location of your web content.
It is a group used to span multiple Availability Zones.
It is the AWS region where you run the EC2 instance of your web content.
Your VPC automatically comes with a modifiable default network ACL, which by default _____
blocks outbound traffic
allows only inbound traffic
allows all inbound and outbound traffic
blocks all inbound and outbound traffic
Network ACLs in a VPC operate at the ______.
TCP level
instance level
subnet level
gateway level
Which of the following terms is NOT a key CloudWatch concept?
Namespaces
Units
Time Stamps
Indexes
Which of the following is an incorrect statement about Amazon CloudWatch?
You can use CloudWatch to collect and track metrics, which are the variables you want to measure for your resources and applications.
You can set CloudWatch alarms to send notifications or automatically make changes to the resources you are monitoring, based on rules that you define.
You can control and monitor all Security Groups and their related rules.
You gain system-wide visibility into resource utilization, application performance, and operation-al health.
Which of the following statements is NOT true of CloudWatch?
CloudWatch can be accessed using the AWS SDKS.
CloudWatch can be accessed using the AWS console.
CloudWatch can be accessed using CloudWatch API.
CloudWatch can be accessed using the CloudWatch CLI for iOS.
A route table in VPC can be associated with multiple subnets. However, a subnet can be associated with only ______ route table(s) at a time.
four
two
three
one
How often is metric data is sent to CloudWatch when detailed monitoring is enabled on an Amazon EC2 instance?
Every 30 seconds
Every 5 minutes
Every 15 minutes
Every minute
What is the default maximum number of VPCs allowed per region?
5
15
100
10
Which of the following states is not possible for the CloudWatch alarm?
ALERT
ALARM
OK
INSUFFICIENT_DATA
In AWS Storage Gateway, Gateway-cached volumes allow you to retain ________________.
a durable and inexpensive offsite backup that you can recover locally
your primary data locally, and asynchronously back up point-in-time snapshots of this data to Amazon S3
your backup application with online access to virtual tapes
low-latency access to your frequently accessed data
What does Amazon ELB stand for?
Elastic Load Balancing
Elastic Linux Box
Encrypted Load Balancing
Encrypted Linux Box
A custom network ACL that you create ____ until you add rules, and is not associated with a sub-net until you explicitly associate it with one.
blocks only inbound traffic by default
allows outbound traffic by default
allows all inbound and outbound traffic by default
blocks all inbound and outbound traffic by default
Amazon RDS provides Amazon CloudWatch metrics for your DB Instance deployments at no ad-ditional charge. You can use the AWS Management Console to view key operational metrics for your DB Instance deployments, including ____.
I/O activity, DB Instance connections, and number of users
DB Engine Version Management
username, I/O activity, and DB Instance connections
compute/memory/storage capacity utilization, I/O activity, and DB Instance connections
A user is collecting 1000 records per second. The user wants to send the data to CloudWatch using a custom namespace. Which of the below mentioned options is recommended for this activi-ty?
Create one csv file of all the data and send a single file to CloudWatch
Aggregate the data with statistics, such as Min, max, Average, Sum and Sample data and send the data to CloudWatch
It is not possible to send all the data in one call. Thus, it should be sent one by one. CloudWatch will aggregate the data automatically
Send all the data values to CloudWatch in a single command by separating them with a comma. CloudWatch will parse automatically
Which of the following statements describes launch configuration in Auto Scaling?
A launch configuration is a template that an Auto Scaling group uses to launch EC2 instances.
A launch configuration is a template that an Auto Scaling group uses to define the max/minimum of instances.
A launch configuration is a template that an Auto Scaling group uses to schedule the scaling ac-tivity.
A launch configuration is a template that an Auto Scaling group uses to define the instance count.
An instance has enabled basic monitoring only for CloudWatch. What is the minimum time period available for basic monitoring?
60 seconds
360 seconds
300 seconds
240 seconds
An Auto Scaling group is running at the desired capacity of 5 instances and receives a trigger from the Cloudwatch Alarm to increase the capacity by 1. The cool down period is 5 minutes. Cloudwatch sends another trigger after 2 minutes to decrease the desired capacity by 1. What will be the count of instances at the end of 4 minutes?
7
6
4
5
Can you use CloudWatch to monitor memory and disk utilization usage for your Amazon EC2 Linux instances?
CloudWatch can only measure memory usage.
CloudWatch can only collect memory and disk usage metrics when an instance is running.
It is possible only on Linux EC2 instances using the CloudWatch Monitoring scripts for Linux.
CloudWatch can only measure disk usage.
Is it possible to publish your own metrics to CloudWatch?
Yes, but only if the data is aggregated.
No, it is not possible.
No, metrics are in-built and cannot be defined explicitly
Yes, it can be done by using the put-metric-data command.
Network ACLs are _______.
stateful
stateless
asynchronous
synchronous
Security groups in VPC operate at the ______.
data transport layer level
subnet level
instance level
gateway level
