WGU D321 AWS DEVELOPER DVA-C02
PRACTICE EXAMINATION 2026
QUESTIONS WITH ANSWERS GRADED A+
◍ What happens to an ALB listener's rules when the listener is deleted?.
Answer: They are also deleted
◍ Is termination protection on or off by default when an EBS volume is
created?.
Answer: Off
◍ What do ELBs ensure through health checks?.
Answer: Only healthy targets receive traffic.
◍ What can auto scaling groups do?.
Answer: Auto scaling groups can scale each target group individually.
◍ What is a listener in ALB?.
Answer: A listener defines the port and protocol to listen on.
◍ Where are sticky sessions enabled for an ALB?.
Answer: Sticky sessions are enabled at the target group level.
◍ What is the format of an ELB DNS name?.
Answer: internal-<name>-<id-number>.<region>.elb.amazonaws.com
◍ True or False: Public IPv4 addresses are retained if you restart the instance.
Answer: True
◍ What attribute do you need to change to alter default delete on termination
behavior for an EBS volume.
Answer: DeleteOnTermination
◍ R6g, R5, R5a, R5b, R5n, R4, X2gd, X1e, X1, High Memory, z1d.
, Answer: Memory Optimized EC2 instance types. Designed to deliver fast
performance for workloads that process large data sets in memory.
◍ Reserved Pricing Terms.
Answer: 1 or 3 years
◍ Can ALB combine host-based and path-based routing?.
Answer: Yes
◍ True or False: EBS volumes restored from encrypted snapshots are
encrypted automatically.
Answer: True
◍ Which ALB rule is evaluated last?.
Answer: The default rule
◍ True or False: User data and metadata are encrypted.
Answer: False
◍ True or False: You cannot decrease an EBS volume size?.
Answer: True
◍ AMI.
Answer: Amazon Machine Image
◍ Can the priority value of the default rule in an ALB be changed?.
Answer: No
◍ What is Amazon Data Lifecycle Manager (DLM)?.
Answer: Automates creation, retention, and deletion of EBS snapshots and
AMIs.
◍ How can you chance the encryption state of a volume?.
Answer: There is no direct way to change the state. Either create an
encrypted volume and copy data to it or take a snapshot, encrypt it, and
create a new encrypted volume from the snapshot
◍ What are sticky sessions in ALB?.
Answer: Sticky sessions allow a client to maintain its connection to the same
, target.
◍ True or False: EBS volumes must be attached to an EC2 instance.
Answer: False
◍ What is the only supported action type for an ALB rule?.
Answer: Forward
◍ Cloud monitoring frequency.
Answer: Standard = 5 minutes, detailed monitoring = 1 minute (chargeable)
◍ What can be changed on an EBS volume without downtime?.
Answer: Volume size and type as long as it is not magnetic standard. Elastic
volumes can also have performance adjusted
◍ What is different in terms of deletion on termination between a Root EBS
volume and other non boot EBS volumes?.
Answer: The root EBS volume is deleted on termination by default while
extra non-boot volumes are not deleted on termination by default
◍ True or False: Elastic IP addresses can be used in multiple regions.
Answer: False, Elastic IP addresses are for use in a specific region only
◍ True or False: Elastic IPs are lost when an instance is stopped.
Answer: False
◍ Can ALB/NLB/GLB route to multiple target groups?.
Answer: Yes
◍ How is the data key stored on-disk with encrypted data?.
Answer: EBS encrypts the data key with the customer master key (CMK).
◍ Reserved Pricing.
Answer: EC2 pricing model that requires a purchase or agreement to
purchase instance usage in advance for a discount
◍ What are the features of Classic Load Balancer (CLB)?.
Answer: Layer 4 or 7, old generation load balancer.
◍ Bastion Host.
PRACTICE EXAMINATION 2026
QUESTIONS WITH ANSWERS GRADED A+
◍ What happens to an ALB listener's rules when the listener is deleted?.
Answer: They are also deleted
◍ Is termination protection on or off by default when an EBS volume is
created?.
Answer: Off
◍ What do ELBs ensure through health checks?.
Answer: Only healthy targets receive traffic.
◍ What can auto scaling groups do?.
Answer: Auto scaling groups can scale each target group individually.
◍ What is a listener in ALB?.
Answer: A listener defines the port and protocol to listen on.
◍ Where are sticky sessions enabled for an ALB?.
Answer: Sticky sessions are enabled at the target group level.
◍ What is the format of an ELB DNS name?.
Answer: internal-<name>-<id-number>.<region>.elb.amazonaws.com
◍ True or False: Public IPv4 addresses are retained if you restart the instance.
Answer: True
◍ What attribute do you need to change to alter default delete on termination
behavior for an EBS volume.
Answer: DeleteOnTermination
◍ R6g, R5, R5a, R5b, R5n, R4, X2gd, X1e, X1, High Memory, z1d.
, Answer: Memory Optimized EC2 instance types. Designed to deliver fast
performance for workloads that process large data sets in memory.
◍ Reserved Pricing Terms.
Answer: 1 or 3 years
◍ Can ALB combine host-based and path-based routing?.
Answer: Yes
◍ True or False: EBS volumes restored from encrypted snapshots are
encrypted automatically.
Answer: True
◍ Which ALB rule is evaluated last?.
Answer: The default rule
◍ True or False: User data and metadata are encrypted.
Answer: False
◍ True or False: You cannot decrease an EBS volume size?.
Answer: True
◍ AMI.
Answer: Amazon Machine Image
◍ Can the priority value of the default rule in an ALB be changed?.
Answer: No
◍ What is Amazon Data Lifecycle Manager (DLM)?.
Answer: Automates creation, retention, and deletion of EBS snapshots and
AMIs.
◍ How can you chance the encryption state of a volume?.
Answer: There is no direct way to change the state. Either create an
encrypted volume and copy data to it or take a snapshot, encrypt it, and
create a new encrypted volume from the snapshot
◍ What are sticky sessions in ALB?.
Answer: Sticky sessions allow a client to maintain its connection to the same
, target.
◍ True or False: EBS volumes must be attached to an EC2 instance.
Answer: False
◍ What is the only supported action type for an ALB rule?.
Answer: Forward
◍ Cloud monitoring frequency.
Answer: Standard = 5 minutes, detailed monitoring = 1 minute (chargeable)
◍ What can be changed on an EBS volume without downtime?.
Answer: Volume size and type as long as it is not magnetic standard. Elastic
volumes can also have performance adjusted
◍ What is different in terms of deletion on termination between a Root EBS
volume and other non boot EBS volumes?.
Answer: The root EBS volume is deleted on termination by default while
extra non-boot volumes are not deleted on termination by default
◍ True or False: Elastic IP addresses can be used in multiple regions.
Answer: False, Elastic IP addresses are for use in a specific region only
◍ True or False: Elastic IPs are lost when an instance is stopped.
Answer: False
◍ Can ALB/NLB/GLB route to multiple target groups?.
Answer: Yes
◍ How is the data key stored on-disk with encrypted data?.
Answer: EBS encrypts the data key with the customer master key (CMK).
◍ Reserved Pricing.
Answer: EC2 pricing model that requires a purchase or agreement to
purchase instance usage in advance for a discount
◍ What are the features of Classic Load Balancer (CLB)?.
Answer: Layer 4 or 7, old generation load balancer.
◍ Bastion Host.
