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WorksheetsCybersecurity Quiz
Total questions: 40
Worksheet time: 20mins
Which CIA triad element ensures data is not altered during transmission?
Confidentiality
Integrity
Availability
Authentication
Caesar cipher is an example of:
Asymmetric encryption
Symmetric substitution cipher
Transposition cipher
Hash function
Which algorithm provides both encryption and digital signature capability?
AES
DES
RSA
SHA-256
AES supports which key sizes?
64, 128, 256 bits
128, 192, 256 bits
128, 160, 256 bits
192, 224, 512 bits
Diffie-Hellman security relies on difficulty of solving:
Integer factorization
Elliptic curve pairing
Discrete logarithm problem
Hash collision
Which of the following is NOT an encryption algorithm?
RSA
AES
Diffie-Hellman
DES
A hash function is best described as:
Two-way encryption
Key-based encryption
One-way fixed-length output function
Stream cipher
Which attack becomes possible if Diffie-Hellman is used without authentication?
Replay attack
Man-in-the-Middle attack
Brute-force attack
Birthday attack
HMAC provides:
Confidentiality only
Integrity and authentication
Encryption and compression
Non-repudiation
Which cipher encrypts data bit-by-bit or byte-by-byte?
Block cipher
Stream cipher
Hash cipher
Hybrid cipher
Standard format of a digital certificate is:
X.500
PKCS#12
X.509
PEM
A digital signature is created using:
Sender’s public key
Receiver’s public key
Sender’s private key
Receiver’s private key
CSR (Certificate Signing Request) contains:
Private key only
Public key and identity information
CA private key
Hash of certificate
Which component issues and manages certificates in PKI?
RA
CA
OCSP
LDAP
Which certificate revocation mechanism works in real-time?
CRL
OCSP
PKCS#7
LDAP
Which certificate should never be directly used to issue end-user certificates?
Root CA certificate
Subordinate CA certificate
SSL certificate
Client certificate
Web-of-Trust model is mainly used by:
X.509 PKI
PGP
SSL
IPSec
A certificate is revoked mainly when:
Certificate expires
Public key is compromised
Private key is compromised
Certificate is copied
Which file format can store certificate + private key together?
.crt
.pem
.pfx / .p12
.csr
Which field uniquely identifies a certificate?
Subject name
Issuer name
Serial number
Validity period
SSL/TLS operates between:
Application and Transport layer
Network and Transport layer
Application and Network layer
Physical and Data Link layer
A cipher suite consists of:
Only encryption algorithm
Encryption + hash + key exchange algorithms
Only hash algorithms
Only key exchange method
Which protocol secures email using asymmetric encryption?
SSL
IPSec
PGP
FTP
S/MIME relies on:
Web of Trust
X.509 certificates
Kerberos tickets
OAuth tokens
Which OpenSSL command creates a self-signed certificate?
openssl verify
openssl genrsa
openssl req -x509
openssl ca
PKCS#10 defines:
Certificate format
CSR format
Private key storage
Cryptographic tokens
FIPS 140-2 mainly specifies:
Encryption algorithms
Hash functions
Cryptographic module security levels
Certificate formats
In TLS, asymmetric cryptography is primarily used for:
Bulk data encryption
Message hashing
Key exchange
Compression
Which tool is commonly used in labs to manage CA and certificates graphically?
Wireshark
XCA
Metasploit
Nessus
Importing a CA certificate into browser is done to:
Enable encryption
Increase key size
Establish trust
Enable hashing
Multi-factor authentication means using:
Two passwords
Two biometric factors
Two or more different authentication factors
Multiple usernames
FIDO authentication eliminates:
Password storage
Hashing
Encryption
Certificates
OAuth is mainly used for:
Encryption
Authorization delegation
Authentication only
Certificate issuance
Zero Trust Architecture assumes:
Internal network is trusted
External network is untrusted
No implicit trust anywhere
Trust based on IP
Aadhaar e-Sign primarily provides:
Confidentiality
Integrity
Legal digital signing
Encryption
Time-Stamping Authority (TSA) ensures:
Identity verification
Document encryption
Proof of signing time
Key generation
IT Act 2000 gives legal recognition to:
Encryption algorithms
Digital signatures
Firewalls
Biometrics
LDAP is mainly used in PKI for:
Encryption
Key exchange
Directory services
Certificate revocation
Which email client is commonly used in PKI labs for signing emails?
Outlook Express
Thunderbird
Gmail Web
Yahoo Mail
Which factor breaks symmetric encryption scalability?
Speed
Cost
Key distribution
Hashing
