EC-Council Practice Tests and Questions
August 16, 2026
Which port scan completes a full TCP connection to determine if a port is open?
- SYN scan
- ACK scan
- Connect scanCorrect
- NULL scan
Question of the Day
The Crucial Exams Question of the Day (QOTD) is a daily social media post featuring a quick, simplified quiz question for one of the many certifications we cover. CompTIA Practice Tests and Questions August 15, 2026Which cryptosystem uses a key pair (public/private) for operations?
SymmetricAsymmetricCorrectHashingStream cipher ISC2 Practice Tests and Questions August 14, 2026Which access control model enforces 'no read up' and uses security clearances and labels?
Bell-LaPadulaCorrectBibaClark-WilsonDiscretionary access control ISC2 Practice Tests and Questions August 13, 2026After confirming a security breach, which incident response step should typically occur next?
ContainmentCorrectRecoveryEradicationPreparation CompTIA Practice Tests and Questions August 12, 2026Which tool measures DC voltages from a PC power supply?
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Ephemeral Diffie-HellmanCorrectStatic RSA key exchangePre-shared symmetric keyAES block cipher Cisco Practice Tests and Questions August 10, 2026How many usable hosts are in an IPv4 /29 network?
2 hosts4 hosts6 hostsCorrect8 hosts ISC2 Practice Tests and Questions August 9, 2026Which access model lets resource owners decide who may access their objects?
Mandatory access controlRole-based access controlDiscretionary access controlCorrectAttribute-based access control CompTIA Practice Tests and Questions August 8, 2026Which CPU feature prevents code execution from data memory pages?
NX bitCorrectASLRStack canarySandboxing Cisco Practice Tests and Questions August 7, 2026Which protocol negotiates trunk links between Cisco switches?
DTPCorrectLACPVTPSTP ISC2 Practice Tests and Questions August 6, 2026Which primitive provides integrity but requires no secret key?
Symmetric block cipherMessage authentication codeAsymmetric digital signatureCryptographic hash functionCorrect CompTIA Practice Tests and Questions August 5, 2026Which OSI layer assigns TCP/UDP port numbers?
Layer 4CorrectLayer 3Layer 2Layer 7 CompTIA Practice Tests and Questions August 4, 2026A PC shows IP 169.254.x.x after reboot. Most likely cause?
DHCP server unreachableCorrectDNS server failureSubnet mask mismatchStatic IP misconfigured Cisco Practice Tests and Questions August 3, 2026In Cisco BGP, which attribute is checked first during route selection?
WeightCorrectLocal preferenceAS-path lengthMED CompTIA Practice Tests and Questions August 2, 2026Which device primarily directs traffic between IP subnets?
Layer 2 switchRouterCorrectNetwork hubWireless AP CompTIA Practice Tests and Questions August 1, 2026What is the main purpose of a network DMZ?
Isolate public servers from LANCorrectProvide remote VPN accessEncrypt traffic between hostsCentralize user authentication CompTIA Practice Tests and Questions July 31, 2026A fingerprint scan is which type of authentication factor?
Something you knowSomething you haveSomething you areCorrectSomewhere you are AWS Practice Tests and Questions July 30, 2026How should you grant EC2 temporary S3 access without storing long-term keys?
Attach an IAM role (instance profile) to EC2CorrectEmbed IAM user access keys in app configUse presigned S3 URLs per object requestRun a local STS server for token exchange CompTIA Practice Tests and Questions July 29, 2026Which backup copies files changed since the last full backup?
IncrementalDifferentialCorrectFullSnapshot GCP Practice Tests and Questions July 28, 2026Which GCP identity should a VM use to call other GCP APIs with least privilege?
User's Google accountOAuth2 client IDService accountCorrectProject-wide API key CompTIA Practice Tests and Questions July 27, 2026Which OSI layer uses MAC addresses to forward frames?
Application layerTransport layerNetwork layerData Link layerCorrect CompTIA Practice Tests and Questions July 26, 2026Which RAID level offers fault tolerance without striping or parity?
RAID 0RAID 1CorrectRAID 5RAID 6 CompTIA Practice Tests and Questions July 25, 2026Which control confines an application to a restricted runtime environment?
SandboxingCorrectFull disk encryptionIntrusion detectionNetwork segmentation CompTIA Practice Tests and Questions July 24, 2026For network 192.168.1.0/28, how many usable host addresses exist?
14Correct161230 ISC2 Practice Tests and Questions July 23, 2026Which process converts data to a fixed-size output that cannot be reversed?
Symmetric encryptionAsymmetric encryptionCryptographic hashingCorrectBase64 encoding
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