By default, what is the maximum number of Cache Nodes you can run in Amazon EIastiCache?
Correct Answer:
A
In Amazon EIastiCache, you can run a maximum of 20 Cache Nodes. Reference: http://aws.amazon.com/e|asticache/faqs/
A user is trying to create a vault in AWS Glacier. The user wants to enable notifications. In which of the below mentioned options can the user enable the notifications from the AWS console?
Correct Answer:
D
From AWS console the user can configure to have notifications sent to Amazon Simple Notifications Service (SNS). The user can select specific jobs that, on completion, will trigger the notifications such as Vault Inventory Retrieval Job Complete and Archive Retrieval Job Complete.
Reference: http://docs.aws.amazon.com/amazongIacier/latest/dev/configuring-notifications-console.html
An organization is setting up RDS for their applications. The organization wants to secure RDS access with VPC. Which of the following options is not required while designing the RDS with VPC?
Correct Answer:
A
A Virtual Private Cloud (VPC) is a virtual network dedicated to the user’s AWS account. It enables the user to launch AWS resources, such as RDS into a virtual network that the user has defined. Subnets are segments of a VPC's IP address range that the user can designate to a group of VPC resources based on security and operational needs. A DB subnet group is a collection of subnets (generally private) that the user can create in a VPC and assign to the RDS DB instances. A DB subnet group allows the user to specify a particular VPC when creating the DB instances.
Each DB subnet group should have subnets in at least two Availability Zones in a given region. If the RDS instance is required to be accessible from the internet the organization must enable the VPC attributes, DNS hostnames and DNS resolution. For each RDS DB instance that the user runs in a VPC, he should reserve at least one address in each subnet in the DB subnet group for use by Amazon RDS for recovery actions.
Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_VPC.html
How many g2.2xIarge on-demand instances can a user run in one region without taking any limit increase approval from AWS?
Correct Answer:
C
Generally AWS EC2 allows running 20 on-demand instances and 100 spot instances at a time. This limit can be increased by requesting at https://aws.amazon.com/contact-us/ec2-request. Excluding certain types of instances, the limit is lower than mentioned above. For g2.2xIarge, the user can run only 5
on-demand instance at a time.
Reference: http://docs.aws.amazon.com/generaI/latest/gr/aws_service_|imits.htmI#Iimits_ec2
The MySecureData company has five branches across the globe. They want to expand their data centers such that their web server will be in the AWS and each branch would have their own database in the local data center. Based on the user login, the company wants to connect to the data center. How can MySecureData company implement this scenario with the AWS VPC?
Correct Answer:
B
A Virtual Private Cloud (VPC) is a virtual network dedicated to the user’s AWS account. The user can create subnets as per the requirement within a VPC. If the user wants to connect VPC from his own data centre, he can setup a public and VPN only subnet which uses hardware VPN access to connect with his data centre. If the organization has multiple VPN connections, he can provide secure communication between sites using the AWS VPN CIoudHub.
The VPN CIoudHub operates on a simple hub-and-spoke model that the user can use with or without a VPC. This design is suitable for customers with multiple branch offices and existing internet connections who would like to implement a convenient, potentially low-cost hub-and-spoke model for primary or backup connectMty between remote offices.
Reference: http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPN_CIoudHub.htmI
