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AWS Certified SysOps Administrator 2 > Deck 4 > Flashcards

Deck 4 Flashcards

1
Q

Is it possible to continue using an EBS volume while a snapshot is being taken?

A

Yes

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2
Q

SQS parameter that indicates time to wait until a message is available in the queue before sending a repsonse

A

WaitTimeSeconds

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3
Q

SSL/TLS protocols not supported by ELBs

A

SSL 1.0

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4
Q

Elasticache metric for the number of get requests the cache has received where the key requested was not found

A

GetMisses

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5
Q

Command line command to disable specified alrms in CloudWatch

A

mon-disable-alarm-actions

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6
Q

API call to disable specified alrms in CloudWatch

A

disable-alarm-actions

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7
Q

SQS parameter to specify an initial invisibility period for a message that youhave added to a queue

A

DelaySeconds

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8
Q

What do you need to do to ensure EC2 instances marked unhealthy by the ELB will be terminated and
replaced?

A

Add an Elastic Load Balancing health check to your Auto Scaling group

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9
Q

Regarding the attaching of ENI to an instance, what does ‘warm attach’ refer to?

A

Attaching an ENI to an instance when it is stopped

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10
Q

Regarding the attaching of ENI to an instance, what does ‘hot attach’ refer to?

A

Attaching an ENI to an instance when it is stopped

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11
Q

Regarding the attaching of ENI to an instance, what does ‘cold attach’ refer to?

A

Attaching an ENI to an instance when it is launching

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12
Q

Min and max retention period for RDS backup

A

Min: 0 (no backup)
Max: 35

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13
Q

Logical grouping of instances within a single Availability Zone, recommended for applications that benefit from low network latency, high network throughput, or both.

A

Placement group

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14
Q

Are S3 objects stored in more than one region?

A

Objects stored in a region never leave the region unless you explicitly transfer them to another region.

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15
Q

Is it possible for an ELB to balance traffic between 2 regions?

A

No

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16
Q

How to determine that an object was successfully stored in S3?

A

Use the Content-MD5 form field

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17
Q

Is it possible to create a route 53 CNAME for the apex?

A

No

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18
Q

SWF

A

Simple Workflow Service makes easy to build applications that use AWS to coordinate work across distributed components

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19
Q

What is a placement group?

A

A placement group is a logical grouping of instances within a single Availability Zone. Placement groups are recommended for applications that benefit from low network latency, high network throughput, or both. To provide the lowest latency, and the highest packet-per-second network performance for your placement group, choose an instance type that supports enhanced networking.

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20
Q

S3 object size limit

A

5TB

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21
Q

How to log client connection information to an ELB?

A

Enable access logs in the ELB

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22
Q

Price paid monthly to use the repository of public datasets

A

They are free to use

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23
Q

Types of SG for RDS

A
  • EC2 SG
  • DB SG
  • VPC SG
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24
Q

What is server side encryption in S3?

A

It encrypts the files that you send to Amazon S3, on the server side.

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25
Q

What are query requests?

A

Query requests are HTTP or HTTPS requests that use the HTTP verb GET or POST and a Query parameter named Action.

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26
Q

Is it possible to decrease the storage size of an RDS instance?

A

No. You cannot reduce storage size once it has been allocated.

27
Q

It is possible to expose a snapshot only to specific AWS accounts?

A

To expose the snapshot to only specific AWS accounts, choose Private, enter the ID of the AWS account (without hyphens) in the AWS Account Number field, and choose Add Permission. Repeat until you’ve added all the required AWS accounts

28
Q

Does Amazon RDS for SQL Server currently support importing data into the msdb database?

A

No

29
Q

What to do if after a Multi-AZ failover read replica appears “stuck”?

A

Delete read replica and replace it

30
Q

What is Elastic Beanstalk?

A

Service that provides the possibility of deploying and managing applications in the AWS Cloud without worrying about the infrastructure that runs those applications

31
Q

Items deleted when deleting IAM user

A

The user
Any group memberships—that is, the user is removed from any IAM groups that the user was a member of
Any password associated with the user
Any access keys belonging to the user
All inline policies embedded in the user (policies that are applied to a user via group permissions are not affected)
Note
Any managed policies attached to the user are detached from the user when the user is deleted. Managed policies are not deleted when you delete a user.
Any associated MFA device

32
Q

Maximum response time for a Business level Premium Support case

A

1 hour

33
Q

Is it possible to delete a snapshot of the root device of an EBS volume used by a registered AMI?

A

No. Note that you can’t delete a snapshot of the root device of an EBS volume used by a registered AMI. You must first deregister the AMI before you can delete the snapshot.

34
Q

When you promote a Read replica what happens with backup configuration?

A

The new DB instance that is created when you promote a Read Replica retains the backup retention period, backup window period, and parameter group of the former Read Replica source.

35
Q

How are the enhanced AWS Support tiers different from Basic Support?

A

Basic, Developer, Business, Enterprise

36
Q

Is it possible to encrypt connections between my application and my DB Instance using SSL?

A

Yes, this option is currently supported for the MySQL, MariaDB, SQL Server, PostgreSQL, and Oracle engines

37
Q

When setting up management network using elastic network interfaces. To ensure failover capabilities, consider …

A

using a secondary private IP for incoming traffic on an elastic network interface

38
Q

Making your snapshot public shares all snapshot data with everyone. Can the snapshots with AWS
Marketplace product codes be made public?

A

Making your snapshot public shares all snapshot data with everyone; however, snapshots with AWS Marketplace product codes cannot be made public. Encrypted snapshots cannot be shared between accounts or made public.

39
Q

In regards to IAM you can edit user properties later, but you cannot use the console to change….

A

Username

40
Q

S3 storage options

A
  • Standard
  • Standard-infrequent access
  • Reduced Redundancy Storage
41
Q

Maximum throughput for DynamoDB

A

DynamoDB is designed to scale without limits However, if you wish to exceed throughput rates of 10,000 write capacity units or 10,000 read capacity units for an individual table, you must first contact Amazon through this online form. If you wish to provision more than 20,000 write capacity units or 20,000 read capacity units from a single subscriber account you must first contact us using the form described above.

42
Q

EC2 API Tools

A

Client interface to the Amazon EC2 web service. Use these tools to register and launch instances, manipulate SGs, and more.

43
Q

How many levels can you nest in groups?

A

Groups can’t be nested; they can contain only users, not other groups.

44
Q

Max length for tag key and value

A

Key: 128 Unicode characters

Value: 256 Unicode characters

45
Q

What you should enable in order to identify the originating IP address of a client connecting to your servers using TCP love ad balancing?

A

Proxy protocol on the ELB

46
Q

How do you add an instance store volume to a running instance?

A

You can specify the instance store volumes for your instance only when you launch an instance. You can’t attach instance store volumes to an instance after you’ve launched it.

47
Q

Is it possible to create a policy affecting an object?

A

No. Policies are bucket level. ACLs can be bucket or object.

48
Q

Default maximums for each of the IAM entities

A

Groups per AWS account: 100
Users per AWS account: 5000
Roles per AWS account: 250
Number of groups per user: 10 (that is, one user can be part of these many groups.

49
Q

Cloudformation limits

A

There are no limits to the number of templates but each AWS CloudFormation account is
limited to a maximum of 20 stacks by default. The Template, Parameter, Output, and Resource description
fields are limited to 4096 characters. The user can include up to 60 parameters and 60 outputs in a template.

50
Q

When AWS will delete a SQS queue?

A

Amazon SQS can delete a queue without notification if one of the following actions hasn’t been performed on
it for 30 consecutive days: SendMessage, ReceiveMessage, DeleteMessage, GetQueueAttributes,
SetQueueAttributes, AddPermission, and RemovePermission.

51
Q

Which AWS RDS logs cannot be viewed from the console for MySQL?

A

Transaction log

52
Q

What do you need in order to upload an entire folder to S3?

A

Enable Enhanced Uploader to install the necessary Java applet. After you choose the Enhanced Uploader, if the uploader is not ready to use after two minutes, you might need to change your platform (Windows or Mac) or browser configuration to get the Java applet to work

53
Q

Timestamp difference accepted by CW

A

The time stamp sent by the user can be up to two weeks in the past and up to two hours into the future.

54
Q

Sending custom data to CW, what to do when the user data is more random and not generated at regular intervals?

A

For the period when there is no data the user should send the value as 0

55
Q

Characters allowed for IAM users, groups, roles and instance profiles

A

Names must contain only alphanumeric characters and/or the following: +=,.@-_

56
Q

If the load balancer is configured to support Server Order Preference…

A

…then the load balancer selects the first cipher in its list that is in the client’s list of ciphers.

57
Q

ASG monitoring type enabled by default

A
  • basic monitoring: when you create the launch configuration using the AWS Management Console
  • detailed monitoring: when you create the launch configuration using the AWS CLI or an API.
58
Q

Technology used for multi AZ

A

Multi AZ deployments for Oracle, PostgreSQL, and MySQL DB instances use Amazon
technology, while SQL Server (MS SQL) DB instances use SQL Server Mirroring.

59
Q

CW PutMetricData request size limit?

A

Each PutMetricData request is limited to 8 KB in size for HTTP GET requests and is limited to 40 KB in size for HTTP POST requests

60
Q

What happens If the

user has an IP address prefix in the VPC that overlaps with one of the networks’ prefixes?

A

If the
user has an IP address prefix in the VPC that overlaps with one of the networks’ prefixes, any traffic to the network’s prefix is dropped.

61
Q

How to to coordinate Availability Zones between accounts?

A

To ensure that resources are distributed across the Availability Zones for a region, we independently map Availability Zones to identifiers for each account. For example, your Availability Zone us-east-1a might not be the same location as us-east-1a for another account. There’s no way for you to coordinate Availability Zones between accounts.

62
Q

Maximum connection draining timeout?

A

The maximum timeout value can be set between 1 and 3,600 seconds (the default is 300 seconds).

63
Q

Data needed for sending custom metrics to CW

A

The user has to include the metric name,

namespace and timezone as part of the request.

64
Q

How can you aggregate CW data between regions?

A

Note that Amazon CloudWatch cannot aggregate data across regions. Metrics are completely separate between regions.
You have to aggregate the data.

AWS Certified SysOps Administrator 2 (4 decks)

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