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WorksheetsCloud Odyssey
Total questions: 102
Worksheet time: 17mins
What does IaaS stand for?
Internet as a Service
Infrastructure as a Service
Integration as a Service
Interface as a Service
Name one public cloud provider.
Microsoft Azure
Ubuntu
Linux Mint
Apache
What is the difference between public and private cloud?
Public cloud is free, private is paid
Public cloud is accessible to everyone, private is restricted
Private cloud does not use virtualization
Public cloud is only for small businesses
What is SaaS in cloud computing?
Software as a Service
Security as a Service
Storage as a Service
System as a Service
Define PaaS.
Platform as a Service
Product as a Service
Program as a Service
Package as a Service
What is a virtual machine?
A physical server
A software-based emulation of a computer
A type of cloud storage
A networking device
Name one advantage of cloud computing.
Limited access
Cost efficiency
Requires manual updates
Only for large organizations
What is cloud storage?
Storing files on local computer
Storing files on remote servers accessible via internet
Backup to USB
Offline storage
What is elasticity in cloud computing?
Ability to stretch physical hardware
Automatic adjustment of resources based on demand
Data backup frequency
Internet speed control
Name one commonly used cloud deployment model.
Public
Local
Networked
Distributed
What is multi-tenancy?
One server per client
Multiple clients share the same software/resources
Multiple servers in a rack
Single client using multiple servers
Define serverless computing.
No servers exist
Applications run without managing servers
Servers are managed manually
Only for storage
Name one benefit of auto-scaling.
Manual server maintenance
Resource optimization
Slower performance
Increased downtime
What is a hypervisor?
A type of network cable
Software to run multiple virtual machines
Cloud storage service
Load balancer
Name one popular container platform.
Kubernetes
Windows Server
Oracle DB
SQL Server
What is cloud migration?
Moving data/applications to cloud
Changing server room location
Updating software manually
Downloading files locally
Define disaster recovery in cloud.
Data deletion
Backup and recovery of systems after failure
Daily system reboot
Security patching
Name one common cloud networking port.
21 FTP
25 TCP/IP
53 HTTP
8080 SSH
What is hybrid cloud?
Combination of private and public cloud
Only private cloud
Only public cloud
Cloud without virtualization
Give an example of SaaS software.
Microsoft Office 365
Linux
VMware
Docker
Explain the difference between vertical and horizontal scaling.
Vertical = adding resources to existing server, Horizontal = adding more servers
Vertical = more servers, Horizontal = bigger server
Both mean adding servers
Both mean increasing internet speed
What is the difference between block storage and object storage?
Block storage stores unstructured data, object storage structured
Block storage = raw volumes, object storage = data with metadata
Block storage cheaper
Object storage only on-prem
Describe the CAP theorem briefly.
Consistency, Availability, Partition tolerance
Cloud, Automation, Performance
Cost, Availability, Partitioning
Control, Access, Performance
How does load balancing improve cloud performance?
By reducing traffic
Distributes incoming traffic across multiple servers
Slows network
Stops users from connecting
What is a cloud region vs availability zone?
Region = global location, AZ = isolated data center within region
Region = one server, AZ = multiple regions
Region = AWS only
AZ = physical region
Explain cloud bursting.
Moving workloads to another cloud temporarily
Sudden system crash
Firewall breach
Adding storage manually
Describe differences between private and community cloud.
Private = organization only, Community = multiple orgs share
Both are public
Private = cheap
Community = owned by AWS
What is a cloud orchestration tool?
Software to manage automated cloud processes
Music player
Cloud storage
Hypervisor
Explain the role of an API gateway in cloud architecture.
Manages requests between clients and microservices
Encrypts data only
Handles storage
Reboots server
Describe fault tolerance in cloud computing.
System continues functioning despite failures
System shuts down when error occurs
Daily backup
Manual reboot required
Explain eventual consistency in distributed cloud storage.
Data eventually consistent across all nodes
Immediate data replication
Data lost after crash
Only for local storage
How do container orchestration tools like Kubernetes manage scaling?
Manually start/stop containers
Automatically adjust number of containers based on demand
Only scale vertically
Only scale storage
Compare and contrast edge computing and cloud computing.
Edge computing = local, Cloud = centralized
Both same
Edge = offline, Cloud = online
Edge = server only
Explain the concept of serverless cold start and its implications.
Delay when function invoked first time
Server crash
Auto-update server
Data migration
What does AWS stand for?
Advanced Web Services
Amazon Web Services
Automated Web System
Amazon Windows Server
Name one AWS compute service.
EC2
S3
RDS
DynamoDB
What is S3 used for?
Compute service
Object storage service
Database service
Network management
Define EC2.
Elastic Compute Cloud
Easy Cloud Computing
Enterprise Cloud Connector
Elastic Container Cluster
What is an AWS Availability Zone?
A single physical server
Isolated data center within a region
Global region
A type of storage
What is AWS Lambda?
Managed database service
Serverless compute service
Networking tool
Cloud storage
Name one AWS database service.
RDS
S3
EC2
CloudFront
What is IAM in AWS?
Identity and Access Management
Internet Access Module
Instance Access Manager
Internal AWS Monitor
Name one AWS storage class in S3.
Glacier
Standard DB
EC2
Lambda
What is CloudWatch used for?
Storage
Monitoring resources
Networking
Security scanning
What is RDS in AWS?
Relational Database Service
Resource Deployment System
Remote Data Storage
Reliable Data Sync
What does VPC stand for?
Virtual Private Cloud
Virtual Public Cloud
Verified Private Compute
Virtual Processing Cluster
What is the use of AWS Elastic Beanstalk?
Database hosting
App deployment and management
Network routing
Storage optimization
Name one AWS content delivery service.
CloudFront
EC2
S3
IAM
What is an AWS security group?
Firewall for instances
Storage class
Database group
Networking protocol
What is AWS Route 53?
Monitoring tool
DNS web service
Serverless
Cloud storage
What is an AWS security group?
Firewall for instances
Storage class
Database group
Networking protocol
What is AWS Route 53?
Monitoring tool
DNS web service
Serverless function
Cloud storage
Name one AWS messaging service.
SQS
EC2
CloudWatch
IAM
What is an AWS snapshot?
Security report
Backup of a storage volume
Network configuration
Database table
Name one AWS analytics service.
Athena
EC2
Lambda
S3
What is AWS Auto Scaling?
Manual server adjustment
Automatic resource scaling
Storage backup
Network monitoring
Explain the difference between EC2 instance types.
They differ in CPU, memory, and storage capacity
All are the same
Only differ in region
Only differ in OS
What is the difference between S3 Standard and S3 Glacier?
Glacier is slower, cheaper storage
Standard slower
Both same
Glacier is compute
How does IAM policy differ from IAM role?
Policy = permission document, Role = assignable identity
Role = permission, Policy = identity
Both same
Policy = storage, Role = compute
Explain the concept of AWS Availability Zone vs Region.
Region = global, AZ = isolated data center
AZ = region, Region = center
Both same
Only applies to EC2
Describe VPC peering.
Connect two VPCs privately
Connect two regions publicly
Share storage
Monitor traffic
What is the difference between RDS Multi-AZ and Read Replica?
Multi-AZ = high availability, Read Replica = read scaling
Multi-AZ = read, Replica = write
Both same
Only for S3
Explain the concept of AWS CloudFormation.
Deploy resources via templates
Monitor traffic
Backup data
Database setup
How does AWS Lambda pricing work?
Pay per GB of storage
Pay per invocation and compute duration
Flat monthly fee
Free service
Explain Elastic Load Balancer types.
ALB = application, NLB = network, CLB = classic
All same
Only ALB exists
Only NLB exists
How does AWS Direct Connect differ from a VPN?
Direct Connect = dedicated private connection, VPN = internet-based
VPN faster
Both same
Direct Connect is wireless
Explain AWS Well-Architected Framework pillars.
Operational Excellence, Security, Reliability, Performance Efficiency, Cost Optimization
Security, Backup, Monitoring
Compute, Storage, Network
Development, Testing
How does AWS handle global consistency in DynamoDB?
Strong and eventual consistency options
Always strong
Always eventual
No consistency
Explain the difference between S3 eventual consistency and strong consistency.
Eventual = may take time to sync, Strong = immediate
Both same
Strong slower
Eventual = deleted data
What is an IP address?
Internet Protocol address
Internal Processor
Input Port
Internal Proxy
What is DNS used for?
Email service
Domain name resolution
Data storage
Cloud computing
Define firewall.
Network security device
Storage system
Processor
Cloud instance
Name one operating system.
Windows
Chrome
AWS
IP
What is RAM?
Read-only memory
Random Access Memory
Remote Access Module
Register Address Memory
What is CPU?
Central Processing Unit
Cloud Processing Unit
Central Protocol Unit
Computation Port Unit
What is HTTP?
HyperText Transfer Protocol
Hyper Terminal Transfer Port
Hyper Transfer Protocol
Host Text Transmission
What is HTTPS?
HTTP with SSL/TLS encryption
HTTP standard
Hyper Terminal transfer
Host Text Protocol
What is a router?
Connects networks
Storage device
CPU component
Firewall
Define URL.
Uniform Resource Locator
Universal Remote Link
Uniform Router Link
User Resource Locator
What is the difference between software and hardware?
Software = programs, Hardware = physical devices
Software = CPU, Hardware = memory
Both same
Hardware = software
Name one database type.
MySQL
Chrome
Windows
AWS
What is SQL?
Structured Query Language
System Query List
Secure Query Link
Standard Query Load
Define VPN.
Virtual Private Network
Variable Protocol Network
Verified Private Node
Virtual Processing Network
What is encryption?
Transforming data for security
Deleting data
Copying files
Network setup
What is a MAC address?
Hardware network address
Memory address
Computer ID
Cloud server
Define BIOS.
Basic Input Output System
Binary Internet Operating System
Backup Input Output Storage
Base Internal OS
Name one cloud-independent storage type.
USB drive
S3
Azure
DynamoDB
What is a network switch?
Connects multiple devices in LAN
CPU component
Firewall
Storage device
Define firmware.
Software stored in hardware
Cloud software
Operating system only
Network device
Explain the difference between TCP and UDP.
TCP = connection-oriented, UDP = connectionless
TCP = faster
Both same
UDP = secure
What is the difference between a process and a thread?
Process = program in execution, Thread = lightweight process
Thread bigger than process
Both same
Process = hardware
Describe RAID levels briefly.
Storage redundancy and performance techniques
CPU optimization
Network protocol
Cloud service
What is the difference between IPv4 and IPv6?
IPv4 = 32-bit, IPv6 = 128-bit
IPv4 faster
IPv6 = 32-bit
Both same
Explain the difference between relational and non-relational databases.
Relational = structured tables, Non-relational = document/key-value
Both same
Relational = cloud only
Non-relational = offline only
What is a subnet mask?
Defines network and host portion
IP address
Gateway
Router
Describe the concept of NAT in networking.
Maps private to public IP
Encrypts traffic
Firewall
Switch
Explain the difference between HTTP/1.1 and HTTP/2.
HTTP/2 supports multiplexing and header compression
HTTP/1.1 faster
Both same
HTTP/2 slower
What is the difference between symmetric and asymmetric encryption?
Symmetric uses one key, Asymmetric uses key pair
Both same
Asymmetric faster
Symmetric insecure
Explain virtualization vs emulation.
Virtualization shares hardware, Emulation mimics hardware
Both same
Virtualization = slower
Emulation = faster
Explain OSI vs TCP/IP model differences.
OSI = 7 layers, TCP/IP = 4-5 layers
Both same
OSI = cloud only
TCP/IP = offline
How does a proxy server improve security and performance?
Filters traffic, caches content
Only firewall
Only storage
Only DNS
Describe the differences between microservices and monolithic architecture.
Microservices = independent services, Monolithic = single code base
Both same
Microservices slower
Monolithic scalable
