Cloud Practice

#91 (Accuracy: 100% / 1 votes)

Your EC2-Based Multi-tier application includes a monitoring instance that periodically makes application -level read only requests of various application components and if any of those fail more than three times 30 seconds calls CloudWatch lo fire an alarm, and the alarm notifies your operations team by email and
SMS of a possible application health problem. However, you also need to watch the watcher -the monitoring instance itself - and be notified if it becomes unhealthy.
Which of the following is a simple way to achieve that goal?

A. Run another monitoring instance that pings the monitoring instance and fires a could watch alarm mat notifies your operations team should the primary monitoring instance become unhealthy.
B. Set a CloudWatch alarm based on EC2 system and instance status checks and have the alarm notify your operations team of any detected problem with the monitoring instance.
C. Set a CloudWatch alarm based on the CPU utilization of the monitoring instance and have the alarm notify your operations team if C r the CPU usage exceeds 50% few more than one minute: then have your monitoring application go into a CPU-bound loop should it Detect any application problems.
D. Have the monitoring instances post messages to an SOS queue and then dequeue those messages on another instance should the queue cease to have new messages, the second instance should first terminate the original monitoring instance start another backup monitoring instance and assume (he role of the previous monitoring instance and beginning adding messages to the SQSqueue.

#92 (Accuracy: 100% / 2 votes)

A user is trying to setup a scheduled scaling activity using Auto Scaling. The user wants to setup the recurring schedule. Which of the below mentioned parameters is not required in this case?

A. Maximum size
B. Auto Scaling group name
C. End time
D. Recurrence value

#93 (Accuracy: 100% / 1 votes)

You are running a web-application on AWS consisting of the following components an Elastic Load Balancer (ELB) an Auto-Scaling Group of EC2 instances running Linux/PHP/Apache, and Relational DataBase Service (RDS) MySQL.
Which security measures fall into AWS's responsibility?

A. Protect the EC2 instances against unsolicited access by enforcing the principle of least-privilege access
B. Protect against IP spoofing or packet sniffing
C. Assure all communication between EC2 instances and ELB is encrypted
D. Install latest security patches on ELB. RDS and EC2 instances

#94 (Accuracy: 100% / 1 votes)

You receive a frantic call from a new DBA who accidentally dropped a table containing all your customers.
Which Amazon RDS feature will allow you to reliably restore your database to within 5 minutes of when the mistake was made?

A. Multi-AZ RDS
B. RDS snapshots
C. RDS read replicas
D. RDS automated backup

#95 (Accuracy: 100% / 1 votes)

A company has an application that is running on an Amazon EC2 instance in one Availability Zone. A SysOps administrator needs to make the application highly available. The SysOps administrator has created a launch configuration from the running EC2 instance. The SysOps administrator also has properly configured a load balancer.
What should the SysOps administrator do next to make the application highly available?

A. Create an Auto Scaling group by using the launch configuration across at least two Availability Zones. Configure a minimum capacity of 1, a desired capacity of 1, and a maximum capacity of 1.
B. Create an Auto Scaling group by using the launch configuration across at least three Availability Zones. Configure a minimum capacity of 2, a desired capacity of 2, and a maximum capacity of 2.
C. Create an Auto Scaling group by using the launch configuration across at least two AWS Regions. Configure a minimum capacity of 1, a desired capacity of 1, and a maximum capacity of 1.
D. Create an Auto Scaling group by using the launch configuration across at least three AWS Regions. Configure a minimum capacity of 2, a desired capacity of 2, and a maximum capacity of 2.

#96 (Accuracy: 100% / 1 votes)

A user has created an application which will be hosted on EC2. The application makes calls to DynamoDB to fetch certain data. The application is using the
DynamoDB SDK to connect with from the EC2 instance. Which of the below mentioned statements is true with respect to the best practice for security in this scenario?

A. The user should attach an IAM role with DynamoDB access to the EC2 instance
B. The user should create an IAM user with DynamoDB access and use its credentials within the application to connect with DynamoDB
C. The user should create an IAM role, which has EC2 access so that it will allow deploying the application
D. The user should create an IAM user with DynamoDB and EC2 access. Attach the user with the application so that it does not use the root account credentials

#97 (Accuracy: 100% / 2 votes)

A user has created a VPC with public and private subnets using the VPC wizard. Which of the below mentioned statements is not true in this scenario?

A. The VPC will create a routing instance and attach it with a public subnet
B. The VPC will create two subnets
C. The VPC will create one internet gateway and attach it to VPC
D. The VPC will launch one NAT instance with an elastic IP

#98 (Accuracy: 100% / 1 votes)

A user is accessing RDS from an application. The user has enabled the Multi AZ feature with the MS SQL RDS DB. During a planned outage how will AWS ensure that a switch from DB to a standby replica will not affect access to the application?

A. RDS will have an internal IP which will redirect all requests to the new DB
B. RDS uses DNS to switch over to stand by replica for seamless transition
C. The switch over changes Hardware so RDS does not need to worry about access
D. RDS will have both the DBs running independently and the user has to manually switch over

#99 (Accuracy: 100% / 1 votes)

An organization has configured two single availability zones. The Auto Scaling groups are configured in separate zones. The user wants to merge the groups such that one group spans across multiple zones. How can the user configure this?

A. Run the command as-join-auto-scaling-group to join the two groups
B. Run the command as-update-auto-scaling-group to configure one group to span across zones and delete the other group
C. Run the command as-copy-auto-scaling-group to join the two groups
D. Run the command as-merge-auto-scaling-group to merge the groups

#100 (Accuracy: 100% / 1 votes)

Security groups in Amazon VPC ______.

A. control incoming traffic only
B. control both inbound and outbound traffic
C. control neither incoming nor outgoing traffic
D. control outgoing traffic only

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