Tag: AWS Certified Solutions Architect – Professional SAP-C01

AWS Certified Solutions Architect – Professional SAP-C01 – Question229

An organization is having a VPC for the HR department, and another VPC for the Admin department. The HR department requires access to all the instances running in the Admin VPC while the Admin department requires access to all the resources in the HR department.
How can the organization setup this scenario?

A. Setup VPC peering between the VPCs of Admin and HR.
B. Setup ACL with both VPCs which will allow traffic from the CIDR of the other VPC.
C. Setup the security group with each VPC which allows traffic from the CIDR of another VPC.
D. It is not possible to connect resources of one VPC from another VPC.

Correct Answer: A

Explanation:

Explanation: A Virtual Private Cloud (VPC) is a virtual network dedicated to the user’s AWS account. It enables the user to launch AWS resources into a virtual network that the user has defined. A VPC peering connection allows the user to route traffic between the peer VPCs using private IP addresses as if they are a part of the same network. This is helpful when one VPC from the same or different AWS account wants to connect with resources of the other VPC.
Reference:
http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/vpc-peering.html

AWS Certified Solutions Architect – Professional SAP-C01 – Question228

An organization has developed an application which provides a smarter shopping experience. They need to show a demonstration to various stakeholders who may not be able to access the in premise application so they decide to host a demo version of the application on AWS. Consequently, they will need a fixed elastic IP attached automatically to the instance when it is launched.
In this scenario which of the below mentioned options will not help assign the elastic IP automatically?

A. Write a script which will fetch the instance metadata on system boot and assign the public IP using that metadata.
B. Provide an elastic IP in the user data and setup a bootstrapping script which will fetch that elastic IP and assign it to the instance.
C. Create a controlling application which launches the instance and assigns the elastic IP based on the parameter provided when that instance is booted.
D. Launch instance with VPC and assign an elastic IP to the primary network interface.

Correct Answer: A

Explanation:

Explanation: EC2 allows the user to launch On-Demand instances. If the organization is using an application temporarily only for demo purposes the best way to assign an elastic IP would be: Launch an instance with a VPC and assign an EIP to the primary network interface. This way on every instance start it will have the same IP Create a bootstrapping script and provide it some metadata, such as user data which can be used to assign an EIP Create a controller instance which can schedule the start and stop of the instance and provide an EIP as a parameter so that the controller instance can check the instance boot and assign an EIP The instance metadata gives the current instance data, such as the public/private IP. It can be of no use for assigning an EIP.
Reference:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AESDG-chapter-in…

AWS Certified Solutions Architect – Professional SAP-C01 – Question227

You create a VPN connection, and your VPN device supports Border Gateway Protocol (BGP).
Which of the following should be specified to configure the VPN connection?

A. Classless routing
B. Classfull routing
C. Dynamic routing
D. Static routing

Correct Answer: C

Explanation:

Explanation: If you create a VPN connection, you must specify the type of routing that you plan to use, which will depend upon on the make and model of your VPN devices. If your VPN device supports Border Gateway Protocol (BGP), you need to specify dynamic routing when you configure your VPN connection. If your device does not support BGP, you should specify static routing.
Reference:
http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_VPN.html

AWS Certified Solutions Architect – Professional SAP-C01 – Question226

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?

A. The organization must create a subnet group with public and private subnets. Both the subnets can be in the same or separate AZ.
B. The organization should keep minimum of one IP address in each subnet reserved for RDS failover.
C. If the organization is connecting RDS from the internet it must enable the VPC attributes DNS hostnames and DNS resolution.
D. The organization must create a subnet group with VPC using more than one subnet which are a part of separate AZs.

Correct Answer: A

Explanation:

Explanation: 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

AWS Certified Solutions Architect – Professional SAP-C01 – Question225

What happens when Dedicated instances are launched into a VPC?

A. If you launch an instance into a VPC that has an instance tenancy of dedicated, you must manually create a Dedicated instance.
B. If you launch an instance into a VPC that has an instance tenancy of dedicated, your instance is created as a Dedicated instance, only based on the tenancy of the instance.
C. If you launch an instance into a VPC that has an instance tenancy of dedicated, your instance is automatically a Dedicated instance, regardless of the tenancy of the instance.
D. None of these are true.

Correct Answer: C

Explanation:

Explanation: If you launch an instance into a VPC that has an instance tenancy of dedicated, your instance is automatically a Dedicated instance, regardless of the tenancy of the instance.
Reference:
http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/dedicated-ins…

AWS Certified Solutions Architect – Professional SAP-C01 – Question224

An organization is planning to use NoSQL DB for its scalable data needs. The organization wants to host an application securely in AWS VPC.
What action can be recommended to the organization?

A. The organization should setup their own NoSQL cluster on the AWS instance and configure route tables and subnets.
B. The organization should only use a DynamoDB because by default it is always a part of the default subnet provided by AWS.
C. The organization should use a DynamoDB while creating a table within the public subnet.
D. The organization should use a DynamoDB while creating a table within a private subnet.

Correct Answer: A

Explanation:

Explanation: The Amazon Virtual Private Cloud (Amazon VPC) allows the user to define a virtual networking environment in a private, isolated section of the Amazon Web Services (AWS) cloud. The user has complete control over the virtual networking environment. Currently VPC does not support DynamoDB. Thus, if the user wants to implement VPC, he has to setup his own NoSQL DB within the VPC.
Reference:
http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Introduct…

AWS Certified Solutions Architect – Professional SAP-C01 – Question223

IAM users do not have permission to create Temporary Security Credentials for federated users and roles by default. In contrast, IAM users can call __________ without the need of any special permissions

A. GetSessionName
B. GetFederationToken
C. GetSessionToken
D. GetFederationName

Correct Answer: C

Explanation:

Explanation: Currently the STS API command GetSessionToken is available to every IAM user in your account without previous permission. In contrast, the GetFederationToken command is restricted and explicit permissions need to be granted so a user can issue calls to this particular Action.
Reference:
http://docs.aws.amazon.com/STS/latest/UsingSTS/STSPermission.html

AWS Certified Solutions Architect – Professional SAP-C01 – Question222

Regarding Identity and Access Management (IAM), Which type of special account belonging to your application allows your code to access Google services programmatically?

A. Service account
B. Simple Key
C. OAuth
D. Code account

Correct Answer: A

Explanation:

Explanation: A service account is a special Google account that can be used by applications to access Google services programmatically. This account belongs to your application or a virtual machine (VM), instead of to an individual end user. Your application uses the service account to call the Google API of a service, so that the users aren’t directly involved. A service account can have zero or more pairs of service account keys, which are used to authenticate to Google. A service account key is a public/private key pair generated by Google. Google retains the public key, while the user is given the private key.
Reference:
https://cloud.google.com/iam/docs/service-accounts

AWS Certified Solutions Architect – Professional SAP-C01 – Question221

Within an IAM policy, can you add an IfExists condition at the end of a Null condition?

A. Yes, you can add an IfExists condition at the end of a Null condition but not in all Regions.
B. Yes, you can add an IfExists condition at the end of a Null condition depending on the condition.
C. No, you cannot add an IfExists condition at the end of a Null condition.
D. Yes, you can add an IfExists condition at the end of a Null condition.

Correct Answer: C

Explanation:

Explanation: Within an IAM policy, IfExists can be added to the end of any condition operator except the Null condition. It can be used to indicate that conditional comparison needs to happen if the policy key is present in the context of a request; otherwise, it can be ignored.
Reference:
http://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_…

AWS Certified Solutions Architect – Professional SAP-C01 – Question220

With respect to AWS Lambda permissions model, at the time you create a Lambda function, you specify an IAM role that AWS Lambda can assume to execute your Lambda function on your behalf. This role is also referred to as the________role.

A. configuration
B. execution
C. delegation
D. dependency

Correct Answer: B

Explanation:

Explanation: Regardless of how your Lambda function is invoked, AWS Lambda always executes the function. At the time you create a Lambda function, you specify an IAM role that AWS Lambda can assume to execute your Lambda function on your behalf. This role is also referred to as the execution role.
Reference:
http://docs.aws.amazon.com/lambda/latest/dg/lambda-dg.pdf