Download WGU D319 EXAM QUESTIONS AND CORRECT ANSWERS| LATEST UPDATE and more Exams Information Technology in PDF only on Docsity!
WGU D319 EXAM QUESTIONS AND CORRECT
ANSWERS| LATEST UPDATE
What is the primary reason for implementing AWS Local Zones? Disaster recovery Compliance High availability Latency The primary reason to use AWS Local Zones is latency. Which pillar of AWS Well-Architected Framework addresses the ability to run and monitor systems? Security Performance Efficiency Reliability Operational Excellence The Operational Excellence pillar addresses the ability to run and monitor systems. Which practice represents an anti-pattern that should be avoided when building solutions on AWS? Minimizing resource dependencies Proactive scaling
Treating resources as disposable Reactive scaling Reactive scaling represents an anti-pattern, since it has a potentially negative impact on resource workload availability. Which Amazon S3 storage class has the lowest storage cost and provides the ability to retrieve data within five minutes? S3 Standard-Infrequent Access Glacier Deep Archive S3 Standard Glacier Amazon S3 Glacier storage class minimizes the storage cost and provides the ability to retrieve data within five minutes. Which option should be used for moving exabytes of data to AWS? AWS Snowmobile Amazon S3 Multipart Upload API AWS Snowball Amazon S3 Transfer Acceleration AWS Snowmobile is suitable for transfers of exabytes of data.
Spot Instances provides the ability to bid on unused EC2 instances and request spare computing capacity at substantial savings. Which Amazon offering provides a NoSQL data store that supports multi-master replication with single-digit millisecond response times? Amazon Aurora Amazon RDS Amazon Redshift Amazon DynamoDB Amazon DynamoDB provides a NoSQL data store that supports multi-master replication with single-digit millisecond response times. Which Amazon offering provides the ability to deploy a managed MySQL instance? Amazon Neptune Amazon Dynamo DB Amazon ElastiCache Amazon RDS Amazon Relational Database Service (RDS) provides the ability to deploy a managed MySQL instance, along with a number of other relational database products, including Microsoft SQL Server, Oracle, PostgreSQL, Amazon Aurora, and MariaDB.
What change should the administrator make to the routing table for the subnet? Removing the local route Creating a route with the destination 255.255.255.255/ Modifying the local route Creating a route with the destination 0.0.0.0/ Creating a route with the destination 0.0.0.0/0 in the route table associated with a VPC subnet is part of configuring it as public. An administrator creates a security group with default rules. The administrator associates the security group with an EC2 instance. What change should the administrator make to the security group to ensure that inbound and outbound network traffic is allowed for the EC2 instance? Removal of an outbound rule Addition of an outbound rule Removal of an inbound rule Addition of an inbound rule. A security group, by default, allows outbound traffic but blocks inbound traffic Considering that only allow rules are supported, it is necessary to add an inbound rule to allow inbound traffic.
Amazon Cognito Amazon Cognito is the AWS federation approach that involves creating user pools and identity pools. What is the least privileged security principal that by default has access to billing information for an individual AWS account? Identity and Access Management (IAM) role session Federated user Identity and Access Management (IAM) role Root user Only the root user has access by default to the billing information for the corresponding AWS account. Which Amazon Route 53 routing policy allows client software to use a cached DNS response to automatically connect to a different IP address if the first IP address becomes unavailable? Simple routing Failover routing Weighted round-robin routing Multivalue answer routing With multivalue answer routing, Route 53 sends up to eight records in response to a query, allowing client software to use a cached DNS response to automatically connect to a different IP address if the first one becomes unavailable.
Which method minimizes the impact of reporting workloads on Amazon RDS and minimizes downtime and administrative effort? Configuring Application Auto Scaling Changing instance class Enabling Storage Autoscaling Adding read replicas Adding read replicas allows for offloading reporting and other read-only workloads from the primary writable instance with the least amount of administrative effort, since replication is automatic and the only change required is modification of database connection strings. What is the scope of resources that can be targeted by a single AWS CloudFormation stack? Availability Zone Region Data center Global The scope of resources that can be targeted by a single AWS CloudFormation stack is a Region.
Increasing the duration will allow the cached files to be used longer, reducing the load on the origin. What is a characteristic of loosely coupled architecture? Scaling is limited and complex. Applications have single points of failure. Servers are connected to one another. Load balancers distribute the traffic. Loosely coupled architecture uses load balancers to distribute the traffic. How does Amazon Simple Queue Service (SQS) handle messages? Data is replicated to multiple origins for resiliency. Information is distributed using load balancing. Data is delivered based on classification levels. Information is encrypted and stored until it is processed and deleted. Amazon SQS will encrypt and store messages until they are processed and deleted. What is a characteristic of microservices? White box
Tightly coupled Centralized Polyglot Microservices can use a variety of tools to provide a service. Polyglot What is one of the tenets that define serverless architecture? Option to add fault tolerance Extensive management Pay by the server unit Automatic scaling Serverless architecture scales are based on consumption. Automatic Scaling What is considered to be a large-scale event in disaster planning? Alerts are sent from security event and information management systems. A single server stops responding or goes offline. Failure is widespread and affects a large number of users and systems. Multiple resources are affected, potentially across Availability Zones within a Region. A large-scale event is when multiple resources are affected, potentially across Availability Zones within a Region.
