Introduction to Cyber Security - MCQ
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Questions and Answers

What penalty does a person face for intentionally destroying or altering required computer source code?

  • Fine up to 4 lakhs
  • Imprisonment up to 1 year
  • Imprisonment up to 3 years or fine up to 2 lakhs or both (correct)
  • Imprisonment up to 4 years

    • Which type of detection method do most Intrusion Detection Systems (IDS) implementations use?

  • Event correlation
  • Intrusion prevention
  • Signature-based detection
  • Anomaly detection (correct)

    • Which encryption technique involves using a single key for both encryption and decryption?

  • Symmetric encryption (correct)
  • Asymmetric encryption
  • Tokenization
  • Hashing

    • What is the main purpose of a cryptographic hash function?

    <p>To ensure data integrity (D)</p> Signup and view all the answers

    What does authentication verify?

    <p>User identity on a remote system (D)</p> Signup and view all the answers

    What is the primary role of a digital signature?

    <p>To ensure the sender's authenticity (B)</p> Signup and view all the answers

    Which section of the IT Act, 2008 addresses the use of spy cameras for capturing private moments?

    <p>Section 67 (D)</p> Signup and view all the answers

    What concept guides an organization's information security policy?

    <p>CIA Triad (A)</p> Signup and view all the answers

    What type of encryption is primarily used in asymmetric cryptography?

    <p>Public key encryption (A)</p> Signup and view all the answers

    Which of the following is a common function of firewalls?

    <p>Monitor network traffic (C)</p> Signup and view all the answers

    Which type of malware is specifically designed to replicate and spread to other systems?

    <p>Worm (B)</p> Signup and view all the answers

    What does the Data Protection Act primarily regulate?

    <p>The collection and processing of personal data (A)</p> Signup and view all the answers

    Which of the following describes a hash function's role in data integrity?

    <p>Generates a unique fixed-size output for data verification (D)</p> Signup and view all the answers

    Which encryption method uses the same key for both encryption and decryption?

    <p>Symmetric key encryption (A)</p> Signup and view all the answers

    What is the primary function of a digital signature?

    <p>To verify the identity of the sender and the integrity of the message (D)</p> Signup and view all the answers

    Which type of malware demands a ransom to restore access to the victim's system?

    <p>Ransomware (B)</p> Signup and view all the answers

    What is a common characteristic of brute-force attacks in cryptography?

    <p>They attempt every possible combination of keys until finding the correct one. (A)</p> Signup and view all the answers

    Which firewall function can enhance protection against potential virus attacks?

    <p>Shutting down unneeded ports. (B)</p> Signup and view all the answers

    Which type of malware is specifically designed to capture key presses on a device?

    <p>Keylogger (B)</p> Signup and view all the answers

    What main purpose does Section 66 of the Indian IT Act emphasize?

    <p>Cracking or illegally accessing computer systems. (C)</p> Signup and view all the answers

    What distinguishes symmetric encryption from asymmetric encryption?

    <p>Symmetric requires a single key for both encryption and decryption, while asymmetric uses a pair of keys. (C)</p> Signup and view all the answers

    What is the role of a nonce in cryptographic systems?

    <p>To prevent replay attacks. (C)</p> Signup and view all the answers

    Which of the following is an example of public-key encryption?

    <p>RSA (C)</p> Signup and view all the answers

    When was the Information Technology Act 2000 enacted in India?

    <p>17th October 2000 (A)</p> Signup and view all the answers

    Flashcards

    Computer Source Code Destruction Penalty

    Intentional destruction or alteration of legally protected computer source code carries a penalty of imprisonment up to 3 years, a fine up to 2 lakhs, or both.

    IDS Software Method

    Most Intrusion Detection System (IDS) implementations use anomaly detection to identify malicious activity.

    Protocol for Best-Effort Delivery

    User Datagram Protocol (UDP) is the protocol responsible for sending data packets without guaranteeing delivery in a best-effort manner.

    Cryptography's Primary Purpose

    Cryptography primarily aims to secure communication by transforming data into a secret code.

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    Cryptographic Hash Function Purpose

    A cryptographic hash function's primary purpose is verifying data integrity.

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    Authentication Definition

    Authentication is the process of confirming a user's identity on a remote system.

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    Symmetric Encryption Key Use

    Symmetric encryption uses a single key for both encryption and decryption.

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    IT Act Section for Spy Cameras

    Using spy cameras in public places to capture private parts falls under Section 67 of the IT Act, 2008.

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    Hash Function in Cryptography

    A function that transforms data of any size into a fixed-size output, ensuring data integrity.

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    Symmetric Encryption

    Uses the same key for encryption and decryption.

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    Asymmetric Encryption

    Uses two different keys for encryption and decryption: public and private keys.

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    Brute-force attack

    A method of cracking a code by systematically trying all possible combinations.

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    Firewall

    A security system designed to prevent unauthorized access to a computer network.

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    Private Key

    A secret key used in asymmetric cryptography, used for decryption.

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    Public Key

    A key used in asymmetric cryptography, used for encryption, publicly available.

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    Nonce

    A random value included in cryptographic communications to prevent replay attacks.

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    OSI Model's Purpose

    The Open Systems Interconnection (OSI) model defines standardized network protocols to ensure communication between different systems.

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    Network Layer's Role

    The Network Layer of the OSI model handles logical addressing (IP addresses) and routing data packets across networks.

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    Digital Signature for Authentication

    A digital signature uses asymmetric cryptography and hashing to verify the authenticity and integrity of a message or document.

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    ARP's Function

    Address Resolution Protocol (ARP) translates IP addresses (logical addresses) to MAC addresses (physical addresses) for communication on a local network.

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    TCP: Reliable Communication

    Transmission Control Protocol (TCP) operates at the Transport Layer of the OSI model, providing reliable, connection-oriented data transfer.

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    DNS: Domain Name Translation

    Domain Name System (DNS) translates domain names (like 'google.com') into IP addresses (numerical addresses), making it easy to access websites.

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    Message Digest for Integrity

    A message digest is a unique, fixed-length hash value that verifies the integrity of a message by detecting any alterations.

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    Switch: MAC Address Filtering

    A network switch operates at the Data Link Layer and filters traffic based on MAC addresses, allowing efficient communication between connected devices.

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    Study Notes

    Introduction to Cyber Security - Multiple Choice Questions

    • OSI Model Purpose: Standardize network protocols
    • OSI Layer for Logical Addressing and Routing: Network Layer
    • Authentication using Asymmetric Crypto: Digital signature
    • ARP (Address Resolution Protocol) Purpose: Translate IP addresses to MAC addresses
    • Transport Layer Protocol for Reliable Communication: TCP (Transmission Control Protocol)
    • DNS (Domain Name System) Function: Translate domain names to IP addresses
    • Message Integrity Technique: Message Digest
    • Device Operating at Data Link Layer for MAC Address Filtering: Switch
    • Subnet Mask Function: Identify network portion of an IP address
    • Virus Scanner Primary Function: Comparing files against known virus profiles
    • Email Protocol: SMTP (Simple Mail Transfer Protocol)
    • Firewall Primary Function: Block unauthorised access
    • Malware Type Allowing Extensive System Control: RATS
    • Network Topology in Linear Sequence: Bus
    • IT Act Section for Stealing Digital Assets: Section 67
    • Default Web Browsing Protocol: HTTP
    • TCP/IP Layer for Logical Addressing (using IP): Network Layer
    • Common Cryptographic Algorithm for Secure Communication: RSA
    • DHCP (Dynamic Host Configuration Protocol) Purpose: Assign dynamic IP addresses to devices
    • Application Layer Networking Device for Filtering: Firewall
    • Cybercrime for Intentionally Destroying Code: Imprisonment up to 3 years or fine upto 2 lakhs or both
    • Cryptographic Hash Function Primary Purpose: Data integrity verification
    • Authentication: To assure the identity of user on a remote system
    • Cryptographic Technique Using Single Key: Symmetric encryption
    • Purpose of Nonce in Cryptographic Protocols : Preventing replay attacks
    • Cryptographic Attack Trying All Combinations: Brute-force attack
    • Firewall Protection Against Virus Attacks: Shut down all unnecessary ports
    • IT Act 2000 Notification Date: 17th October 2000
    • Difference between Symmetric and Asymmetric Encryption: Symmetric uses one key, and asymmetric uses two keys.
    • Malware Type of Key Logger: Spyware
    • Updated Version of IT Act 2000: IT Act, 2008
    • Primary Goal of Cybersecurity Protecting against unauthorized access and attacks
    • Strong Password Example: H@rdT0Gu3ss
    • Firewall Purpose: Block unauthorised access and control traffic
    • Antivirus Software Role: Detect and remove malicious software
    • Cybersecurity Concept for Least Privileges to Perform Job Functions: Least Privilege
    • Purpose of Biometric Authentication: Authenticating users based on unique physical characteristics
    • Meaning of Phishing: Social engineering attacks using deceptive emails or messages
    • Purpose of VPN: Providing a secure, encrypted connection over the internet
    • SIEM (Security Information and Event Management) Function: Detecting and responding to security incidents
    • Cybersecurity Measure for Regularly Updating Software: Patch Management
    • Purpose of CAPTCHA: Differentiating between humans and automated bots
    • Attack Involving Overwhelming System with Traffic: DDoS (Distributed Denial of Service)
    • Encryption Purpose in Cybersecurity: Protecting data confidentiality
    • Purpose of Intrusion Detection System (IDS): Detect malicious activity.

    Supplementary Notes

    • Not all terms were explicitly defined and some questions were more descriptive. Summarization has been done to best capture the content.

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    Description

    Test your knowledge of key concepts in Cyber Security with this multiple-choice quiz. Covering topics such as the OSI Model, protocols, and network security mechanisms, this quiz is designed to reinforce your understanding of the foundational elements of Cyber Security.

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