WorksheetsMalware and Encryption Quiz
Total questions: 20
Worksheet time: 20mins
Which of the following is an example of malware?
Firewall
Antivirus
Trojan Horse
Encryption Key
What is ransomware?
A software that protects files from being accessed
A type of malware that locks or encrypts data and demands payment
A virus that replicates itself in the system
A program used for ethical hacking
Which type of malware disguises itself as legitimate software?
Worm
Trojan
Adware
Spyware
What does a computer virus do?
Prevents you from accessing the internet
Slows down the CPU processing power
Replicates itself and spreads to other files
Encrypts all the files on your computer
Which malware is designed to secretly gather information about a user?
Spyware
Ransomware
Worm
Keylogger
What is the primary characteristic of a worm?
It requires a host file to spread
It can replicate and spread independently
It is harmless to the system
It only targets email systems
A keylogger is an example of:
Spyware
Adware
Worm
Ransomware
What is the purpose of adware?
To encrypt data
To display unwanted advertisements
To delete critical system files
To lock a user’s computer
Which of the following malware can create backdoors for unauthorized access?
Spyware
Trojan
Adware
Worm
What is a botnet?
A software that repairs corrupted files
A network of infected computers used for malicious purposes
A tool used for encrypting data
A defense mechanism against malware
What is encryption?
Converting plaintext into unreadable format
Copying files to a secure location
Deleting sensitive data
Accessing data without authorization
Which of the following is a symmetric encryption algorithm?
RSA
AES
ECC
Diffie-Hellman
What is the primary purpose of encryption?
To make data larger in size
To protect data from unauthorized access
To delete unwanted data
To increase internet speed
What is a decryption key?
A key used to convert ciphertext back into plaintext
A tool for encrypting data
A hardware device for securing data
A random password used to lock files
Which of the following uses two keys for encryption and decryption?
Symmetric encryption
Asymmetric encryption
Hashing
Steganography
What is the output of an encryption process called?
Plaintext
Ciphertext
Hash
Digital signature
Which algorithm is commonly used for public key encryption?
DES
RSA
MD5
SHA-256
In symmetric encryption, the same key is used for:
Encryption only
Decryption only
Both encryption and decryption
Generating hashes
What is the purpose of hashing in cryptography?
To encrypt data
To ensure data integrity
To decrypt data
To generate encryption keys
Which of the following ensures secure communication over the internet by encrypting data?
HTTP
SSL/TLS
FTP
Telnet
