CC
Which of the following are considered essential characteristics of cloud computing?
Broad network access
Measured service
Rapid elasticity
On-demand self-service
Which of the following represent characteristics of horizontal scaling of IT resources?
Ability to handle DDoS attacks
Allocation or release of IT resources of the same type
Ability to handle increased/decreased usage demands
Replacing a resource with one of higher/lower capacity
Which of the following are true about Amazon S3?
A file in a bucket can be accessed through a URL
Files cannot be accessed through URLs
All data is stored in buckets
It is similar to EC2 with additional storage
Which of the following are types of Cloud services?
Internet of Things Services
Identity Management Services
Networking Services
Developer Tools Services
Which of the following are true about Serverless Computing?
Serverless Computing is synonymous with Function-as-a-Service
Users must manage the infrastructure themselves
It is a way to deploy applications in the cloud
It only supports static websites
Which of the following statements about containerization are true?
It creates VM images with applications
Applications run the same everywhere
Containerized applications can be moved and scaled across cloud solutions
It means automatic orchestration/configuration of systems
What is Docker Compose?
A tool used to define and run multi-container Docker applications
A project integrating VMs into containers
A tool combining multiple Docker images into one
A utility for composing web services inside a Docker container
What are Bare Metal Compute Services?
Physical compute servers dedicated to one customer
Database-only services
Abstractions for containerization
VM systems for high availability
Which of the following are examples of Software-as-a-Service (SaaS)?
AWS Elastic Beanstalk
AWS Lambda
Google Compute Engine
Google Meet
Which of the following are advantages of cloud computing?
Redundancy is always the consumer’s responsibility
Cloud infrastructure is virtualized by the client
Cloud infrastructure is more scalable than local infrastructure
Clients only pay for used resources
What is Docker?
A platform used to build and run applications in containers
An operating-system-level hypervisor
A hardware-level hypervisor
A virtual machine run by a hypervisor
What does the command docker run hello-world do?
Downloads the hello-world image and runs a container based on it
Creates a new image named hello-world
hrows an error if the image is not downloaded
Creates a hello-world template image
Which of the following are advantages of using PaaS?
Sophisticated tools at affordable prices
Full control over cloud infrastructure
Efficient application lifecycle management
No need to write code
How can AWS infrastructure costs be reduced?
Purchase Reserved Instances
Allow multiple users on the same AWS account
Monitor and stop unused EC2 instances
Move workloads to cheaper regions
What is Cloud Computing?
A GRID-type system
A real-time product delivery solution
Utility computing through telephone systems
A model enabling on-demand access to shared configurable resources
Which of the following are true about a Docker image?
Contains the filesystem for a Docker container
A Docker image is the same as a container
All containers use the same image
May contain multiple layers with different files
What are the main layers in a 4-tier enterprise architecture?
Server, presentation, data access, database
Client frontend, backend, server, database
Client, web, business, database
Client, router, adapter, server
What is Cloud provisioning?
Redundancy provided by the cloud provider
Scaling resources beyond planned limits
Allocation of cloud resources/services to a client
Paying only for used resources
Which of the following are true about Amazon SQS Standard Queue?
Messages may occasionally arrive out of order
Messages may be delivered more than once
Supports nearly unlimited concurrent API calls
Messages are always delivered in order
Which of the following are true about Amazon SNS?
Publishers communicate synchronously
Used exclusively for AWS admin notifications
Publishers communicate asynchronously through topics
Coordinates message delivery from publishers to subscribers
Which design pattern should be used at the server entry point in a distributed application?
Server Adapter
Business Delegate
Session Facade
Singleton
Which of the following are true about Amazon SNS pub-sub?
Messages are sent to all subscribers
Sent only to the first subscriber
Sent to a random subscriber
Sent to the last subscriber
Which of the following can trigger a Function-as-a-Service function?
Time interval
Incoming email
Uploaded document
HTTP request
Which of the following are true about Amazon SQS?
Single producer-single consumer
Multiple producers-single consumer
Single producer-multiple consumers
Multiple producers-multiple consumers
Which capabilities are provided by PaaS?
Control over deployed applications
Control over operating systems
Use of provider applications
Deploying applications using provider-supported tools/languages
Which of the following are true about AWS Lambda?
Code runs in the cloud without access to compute resources
Automatically scales based on requests
Runs on a programmer-selected EC2 instance
Only one instance runs at a time
Which of the following are true about Amazon SQS FIFO Queue?
Supports unlimited concurrent API calls
Messages are delivered exactly once
Messages may arrive out of order
Messages are always delivered in exact order
Which of the following are true about a Docker container?
All modifications are stored only in the top layer
Contains a read/write layer above read-only layers
Contains a read-only layer above read/write layers
Can modify any layer directly
Which of the following are true about a Docker container?
Runs a guest operating system
Shares the host kernel with other containers
Is isolated from the host and other containers
Runs natively on Linux
What are VM Compute Services primarily used for?
Managing DNS records
Running scalable virtual machines
Hosting static websites
Managing email traffic
Which is NOT a type of VM optimization?
General purpose
Memory optimized
Compute optimized
Network optimized
Which of the following is a container compute service?
AWS Lambda
Google Kubernetes Engine
Azure Data Lake
CloudFront
Block storage is ideal for:
Web hosting
Database applications
Video streaming
Machine learning pipelines
What does a file storage system typically support?
HTTP access only
iSCSI interface
POSIX-compliant file operations
JSON-based access
What is a graph database used for?
Financial accounting
IoT sensors
Relationship-based queries
Text mining
Containers differ from VMs because they:
Have larger OS footprints
Require more memory
Share the host OS kernel
Include hypervisors
What does Kubernetes manage?
Email servers
Billing reports
Containerized applications
Hardware provisioning
What does IaaS allow the consumer to control?
The physical server
Operating system and applications
Cloud billing system
Networking hardware
Which actor is responsible for aggregating services across providers?
Cloud Broker
Cloud Auditor
Cloud Carrier
Cloud Consumer
Which is a common cloud vulnerability?
Overprovisioning
Manual testing
Infrastructure failure
Slow compilation
What is Docker primarily used for?
Configuring routers
Managing virtual machines
Containerizing applications
Designing network topologies
What is Cloud-based WAF used for?
Encrypting databases
Filtering and monitoring HTTP traffic
Managing DNS
VM orchestration
What does a Reverse Proxy do?
Allows private networks to access the internet
Acts as a single entry point for external systems
Encrypts Docker containers
Manages EC2 scaling
What does a Forward Proxy do?
Allows internet users into private networks
Acts as public load balancer
Allows computers in a private network to access the internet
Replaces a firewall
Which are examples of VM Compute Services?
Amazon EC2
Google Compute Engine
Azure Virtual Machines
penStack Nova
What are advantages of PaaS?
Reduce coding time
Easier multi-platform development
Efficient lifecycle management
Support distributed development teams
What are advantages of SaaS?
Access sophisticated applications
Pay only for usage
Access application data from anywhere
Easily mobilize workforce
Which are characteristics of Container Compute Services?
Kubernetes as a Service
Runs Docker containers in managed environments
Automates orchestration and deployment
Runs on worker node clusters coordinated by a master node
What are characteristics of Function-as-a-Service?
Runs small pieces of code (“functions”)
Triggered by events
Used in serverless applications
Useful for microservices
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