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سؤال 1
Which AWS service collects metrics from EC2 instances and other resources?
CloudWatch collects and visualizes metrics from AWS resources and applications. CloudTrail records API calls, S3 stores objects, and Config tracks configuration.
سؤال 2
Which AWS service stores application and system logs?
CloudWatch Logs ingests, stores, and queries logs. GuardDuty detects threats, WAF filters web traffic, and Route 53 is DNS.
سؤال 3
Which service sends notifications when a CloudWatch alarm state changes?
SNS delivers messages from CloudWatch alarms to subscribers such as email or Lambda. SQS is a queue, Lambda runs code, and EBS provides volumes.
سؤال 4
Which AWS service records API calls for auditing?
CloudTrail records management and data events. CloudWatch monitors metrics, S3 stores objects, and Elastic Beanstalk deploys apps.
سؤال 5
What is a CloudWatch metric?
Metrics are time-ordered numeric values such as CPU utilization. Logs, findings, and DNS records are different data types.
سؤال 6
Which CloudWatch feature lets you create visual dashboards?
Dashboards display metrics and alarms visually. Logs store log data, CloudTrail records calls, and Config tracks configuration.
سؤال 7
What is a composite alarm?
Composite alarms reduce noise by combining several alarms. Storage alarms, DNS checks, and backups are different.
سؤال 8
Which AWS service shows service health and events for your account?
The Personal Health Dashboard shows service health events affecting your account. CloudWatch monitors metrics, Config tracks configuration, and Inspector scans workloads.
سؤال 9
Which CloudWatch Logs feature lets you query logs interactively?
Logs Insights provides interactive queries for log data. Metric filters create metrics, alarms trigger actions, and dashboards display visuals.
سؤال 10
Match each AWS monitoring service to its purpose.
CloudWatch collects metrics, CloudTrail records API calls, SNS sends notifications, and Health Dashboard shows service health.
سؤال 11
What does an Auto Scaling group do?
An Auto Scaling group keeps instances healthy and adjusts capacity. S3 stores objects, Route 53 routes DNS, and ACM manages certificates.
سؤال 12
What is a launch template?
Launch templates define AMI, instance type, key pairs, and user data. DNS records, firewall rules, and backups are separate.
سؤال 13
Which AWS service distributes incoming traffic across targets?
Elastic Load Balancing distributes traffic across targets such as EC2 instances. CloudWatch monitors, CloudTrail records calls, and S3 stores data.
سؤال 14
Which load balancer operates at Layer 7 for HTTP and HTTPS?
ALB routes HTTP/HTTPS traffic at Layer 7 with path and host rules. NLB operates at Layer 4, and Gateway Load Balancer forwards third-party appliances.
سؤال 15
Which load balancer operates at Layer 4 for TCP and UDP?
NLB handles TCP and UDP at Layer 4 with very high performance. ALB handles HTTP, Classic is legacy, and CloudFront is a CDN.
سؤال 16
What is an EC2 health check?
EC2 health checks verify system status and instance reachability. DNS records, storage tiers, and security groups are not health checks.
سؤال 17
What is a load balancer target group health check?
Target group health checks send requests to targets to confirm they can serve traffic. Alarms, snapshots, and roles are different.
سؤال 18
What is a multi-AZ deployment?
Multi-AZ deployments place resources across Availability Zones to tolerate failures. One bucket, one instance type, or no backups reduce resilience.
سؤال 19
What is RDS Multi-AZ?
RDS Multi-AZ provides a synchronous standby for failover. Read replicas improve read performance, backups are copies, and VPC peering connects networks.
سؤال 20
Match each AWS reliability service to its purpose.
ASG scales instances, ALB routes HTTP, NLB routes TCP, and Multi-AZ provides a synchronous standby.
سؤال 21
Which AWS service deploys application code to EC2 instances?
CodeDeploy automates code deployments to EC2, Lambda, and on-premises. CloudFormation provisions infrastructure, S3 stores objects, and Route 53 is DNS.
سؤال 22
Which AWS service compiles and tests code?
CodeBuild builds and tests source code. CodeDeploy deploys it, CloudWatch monitors it, and CloudTrail records API calls.
سؤال 23
Which AWS service creates a pipeline from source to production?
CodePipeline automates release pipelines with stages for build, test, and deploy. CodeCommit is source control, S3 is storage, and CloudTrail is auditing.
سؤال 24
Which AWS service provisions infrastructure as code?
CloudFormation defines and provisions AWS resources with templates. CodeDeploy deploys apps, CloudWatch monitors, and Shield protects against DDoS.
سؤال 25
Which AWS service provides a managed platform for running web applications?
Elastic Beanstalk is a PaaS that manages capacity, load balancing, and scaling. EC2 is IaaS, S3 is storage, and Direct Connect is networking.
سؤال 26
Which AWS service builds custom machine images?
Image Builder creates, tests, and distributes AMIs and container images. Inspector scans workloads, WAF filters traffic, and GuardDuty detects threats.
سؤال 27
What is a golden AMI?
A golden AMI contains standardized software and security settings for consistent deployments. It is not a DNS record, firewall rule, or snapshot.
سؤال 28
Which AWS service provides managed Git repositories?
Blue/green deployments run old and new environments and shift traffic when ready. It is not deletion, a new VPC, or disabling monitoring.
سؤال 30
Match each AWS deployment service to its purpose.
CloudFormation provisions infrastructure, CodePipeline automates releases, CodeDeploy deploys code, and CodeBuild builds it.
سؤال 31
Which AWS service stores unstructured objects?
S3 is object storage. EBS is block storage, EFS is Linux file storage, and FSx provides specialized file systems.
سؤال 32
Which S3 storage class is designed for frequently accessed data?
S3 Standard offers low latency and high durability for frequent access. Glacier and One Zone-IA target less frequent or cheaper access patterns.
سؤال 33
Which S3 storage class has the lowest storage cost?
Glacier Deep Archive has the lowest storage cost and longest retrieval time. Standard is for frequent access, and IA is for infrequent access.
سؤال 34
Which AWS service provides block storage for EC2 instances?
EBS provides persistent block volumes for EC2. S3 is objects, EFS is file storage, and Route 53 is DNS.
سؤال 35
Which AWS service provides scalable file storage for Linux instances?
EFS is a managed NFS file system for Linux. EBS is block storage, S3 is objects, and Glacier is archive storage.
سؤال 36
What is an EBS snapshot?
Snapshots capture EBS volume data for backup and recovery. DNS records, load balancers, and security groups are not snapshots.
سؤال 37
What does S3 versioning do?
Versioning keeps previous object versions so you can restore them. Encryption, deletion, and routing are different features.
سؤال 38
What does an S3 lifecycle policy do?
Lifecycle policies move objects between storage classes or delete them after a set period. They do not manage IAM, scaling, or DNS.
سؤال 39
Which AWS service provides managed Windows file storage?
FSx for Windows File Server provides managed Windows file shares. EFS is Linux NFS, EBS is block storage, and S3 is objects.
سؤال 40
Match each AWS storage service to its purpose.
S3 stores objects, EBS provides blocks, EFS provides Linux files, and Glacier provides archives.
سؤال 41
Which AWS component filters traffic at the instance level?
Security groups filter traffic at the instance level. NACLs filter at the subnet level, route tables direct traffic, and internet gateways provide public access.
سؤال 42
What is a route table used for?
Route tables define how traffic is directed within a VPC. S3 stores objects, Lambda runs code, and CloudWatch monitors.
سؤال 43
Which AWS service provides DNS and domain routing?
Route 53 is a DNS service. CloudFront is a CDN, Shield is DDoS protection, and WAF filters web traffic.
سؤال 44
Which AWS service is a content delivery network?
CloudFront caches content at edge locations. Route 53 is DNS, Direct Connect is private connectivity, and VPN creates encrypted tunnels.
سؤال 45
Which AWS feature connects two VPCs privately?
VPC peering connects two VPCs privately. Internet gateways provide public access, NAT provides outbound access, and security groups filter traffic.
سؤال 46
What does a NAT gateway do?
NAT gateways let private instances reach the internet for outbound traffic. Load balancers route, CloudFront caches, and Route 53 resolves DNS.
سؤال 47
Which AWS service creates encrypted site-to-site tunnels?
Site-to-Site VPN creates encrypted tunnels over the internet. Direct Connect is a private physical connection, CloudFront is a CDN, and S3 is storage.
سؤال 48
Which AWS service provides a private physical connection to AWS?
Direct Connect provides private physical connectivity through providers. VPN uses the internet, Route 53 is DNS, and WAF filters web traffic.
سؤال 49
What are VPC Flow Logs?
Flow Logs capture IP traffic metadata for analysis. Application logs, DNS records, and backups are different data types.