Free IT certification practice
Practice free. Pass with confidence.
Free, community-shared practice questions for AWS, Microsoft, CompTIA, Cisco, and more — organized with AI, explained in plain language, with instant feedback. No signup required to start.
Browse by provider
13 providers · 121 exam banksLatest exam question analyses
View all updates →-
SAP-C02
Lambda function URLs vs API Gateway for Git webhooks
This SAP-C02 scenario asks for the least-operational-overhead serverless replacement for EC2/ALB-hosted Git webhooks.
-
DVA-C02
Identifying and Removing Clients in AWS API Gateway WebSocket APIs
To identify and remove problematic clients in AWS API Gateway WebSocket APIs, developers should implement $connect and $disconnect routes for tracking and use the callback URL to force disconnection.
-
PDE
Choosing Cloud Spanner for ACID Compliant Banking Transactions
This question identifies Cloud Spanner with locking read-write transactions as the correct solution for storing bank account transactions requiring ACID compliance and SQL access.
-
PDE
BigQuery Partitioning Strategy for Lifecycle Analysis
Improve BigQuery query performance for package lifecycle analysis by switching from ingest-date to delivery-date partitioning. This enables efficient partition pruning.
-
SAP-C02
Cutting Cross-Region S3 Write Lag with Local Buckets and CRR
This SAP-C02 scenario tests how to shorten data arrival time from sa-east-1 and ap-northeast-1 to a centralized eu-north-1 S3 bucket read by Athena.
-
CAS-005
Impact of a Static Initialization Vector in AES-CBC
A static or predictable Initialization Vector (IV) in AES-CBC mode violates semantic security, allowing attackers to derive plaintext information from the encrypted data.
-
220-1201
Troubleshooting Dot Matrix Printer Blank Top Page
This CompTIA A+ question addresses dot matrix printer maintenance where the top multipart form page is blank. The solution involves replacing the ink ribbon due to depletion.
-
220-1201
Troubleshooting Tablet Touchscreen Digitizer Misalignment
Identify digitizer misalignment as the cause of consistent touch offset and determine that recalibration is the correct troubleshooting step for mobile devices.
-
PT0-003
Best Physical Access Attack Against a Guarded Vestibule
In a multi-tenant office protected by an access control vestibule and on-site guards, the best physical access plan is tailgating during a busy period (B), not badge cloning, lock picking, or
-
CAS-005
Diamond Model Meta-Features vs Core Features
This page explains how to distinguish between core features and meta-features in the Diamond Model of Intrusion Analysis, identifying Direction as the correct meta-factor among the options provided.
-
PT0-003
Most Efficient Sensitive-File Exfiltration Method
This PT0-003 scenario tests exfiltration channel efficiency, and the answer is D: encrypting the file and sending it over HTTPS gives high-throughput, reliable, low-noise transfer.
-
DVA-C02
Preventing Cross-Environment Lambda Invocations via Resource Policies
This question addresses how to prevent unintended cross-environment Lambda invocations caused by shared S3 triggers within a single AWS account.
Most discussed questions
Community debate, expert analysis & FAQs-
PCA
Surviving a Zone Outage With SQL Server on GCP
This PCA question tests zero-downtime SQL Server availability across GCP zones, where Always On Availability Groups with nodes in different zones (D) is the correct design over Cloud SQL HA (A).
-
AZ-104
Attach a Data Disk to Another VM with Minimum Downtime
When moving a data disk between Azure VMs, the fastest path is a hot detach: removing the disk from its current VM does not require powering off either machine, so both stay online. The correct first action is to detach the data disk, then attach it to the target VM.
-
AZ-104
Force Immediate Azure AD Connect Sync of New User
This AZ-104 scenario asks whether running Start-ADSyncSyncCycle -PolicyType Initial will immediately replicate a newly created on-premises Active Directory user to the weyland.com Azure AD tenant. The page establishes that the answer is No, because only -PolicyType Delta delivers the urgent, targeted sync cycle the requirement calls for.
-
PCA
Why Performance Bugs Appear Only in Production
This PCA question tests how to fix test and deployment procedures when performance defects escape to production. It establishes that raising load in test and staging environments (option C) reproduces production conditions and catches performance bugs before release.
-
ACE
Connecting to SQL Server on Compute Engine via RDP
This question addresses the most efficient method to connect to a Windows instance running SQL Server on Google Cloud Platform using Remote Desktop Protocol (RDP). It clarifies that while the GCP Console provides an RDP button, it does not support direct credential entry for immediate session establishment.
-
SAA-C03
Migrating 70 TB On-Premises NFS Data to Amazon S3
This question tests choosing the optimal data migration method to Amazon S3 for 70 TB of static video files when speed and minimal network bandwidth are required. AWS Snowball Edge is the correct answer because it physically transports data off-premises, avoiding network bandwidth entirely.