bsi_ang_2018.json

{
  "$schema": "schemas/subject.json",
  "title": "Bezpieczeństwo Systemów Informatycznych 2018",
  "id": "bsi_ang_2018",
  "data": [
    {
      "question": "Who first invented wheel cipher?",
      "id": 3095,
      "numberOfComments": 0,
      "answers": [
        {
          "answer": "The Greeks",
          "correct": false
        },
        {
          "answer": "Julius Caesar",
          "correct": false
        },
        {
          "answer": "Thomas Jefferson",
          "correct": true
        },
        {
          "answer": "Charles Babbage",
          "correct": false
        }
      ],
      "comments": []
    },
    {
      "question": "An act to convert plaintext into ciphertext in order to preserve confidentiality of data is called?",
      "id": 3096,
      "numberOfComments": 0,
      "answers": [
        {
          "answer": "Encryption",
          "correct": true
        },
        {
          "answer": "Decryption",
          "correct": false
        },
        {
          "answer": "Hash",
          "correct": false
        },
        {
          "answer": "Message authentication",
          "correct": false
        }
      ],
      "comments": []
    },
    {
      "question": "A cipher that scrambles letters into different positions is referred to as what?",
      "id": 3097,
      "numberOfComments": 0,
      "answers": [
        {
          "answer": "Running key",
          "correct": false
        },
        {
          "answer": "Transposition",
          "correct": true
        },
        {
          "answer": "Substitution",
          "correct": false
        },
        {
          "answer": "Stream",
          "correct": false
        }
      ],
      "comments": []
    },
    {
      "question": "Which of the following is not a block cipher mode of operation in stream mode?",
      "id": 3098,
      "numberOfComments": 0,
      "answers": [
        {
          "answer": "Electronic Code Book (ECB)",
          "correct": true
        },
        {
          "answer": "Cipher Feed Back (CFB)",
          "correct": false
        },
        {
          "answer": "Output Feed Back (OFB)",
          "correct": false
        },
        {
          "answer": "Counter (CTR)",
          "correct": false
        }
      ],
      "comments": []
    },
    {
      "question": "What is a mathematical encryption operation that cannot be reversed called?",
      "id": 3099,
      "numberOfComments": 0,
      "answers": [
        {
          "answer": "DES",
          "correct": false
        },
        {
          "answer": "Transposition",
          "correct": false
        },
        {
          "answer": "Substitution",
          "correct": false
        },
        {
          "answer": "One-way hash",
          "correct": true
        }
      ],
      "comments": []
    },
    {
      "question": "In block cipher, what creates the element of diffusion?",
      "id": 3100,
      "numberOfComments": 0,
      "answers": [
        {
          "answer": "Permutation using a lookup table",
          "correct": false
        },
        {
          "answer": "Bit substituting using a S-box",
          "correct": false
        },
        {
          "answer": "Use of a Feistel network",
          "correct": true
        },
        {
          "answer": "Use of a key scheduler",
          "correct": false
        }
      ],
      "comments": []
    },
    {
      "question": "What is the effective key length for Data Encryption Standard (DES)?",
      "id": 3101,
      "numberOfComments": 0,
      "answers": [
        {
          "answer": "56-bit",
          "correct": true
        },
        {
          "answer": "64-bit",
          "correct": false
        },
        {
          "answer": "32-bit",
          "correct": false
        },
        {
          "answer": "16-bit",
          "correct": false
        }
      ],
      "comments": []
    },
    {
      "question": "Data Encryption Standard (DES) performs how many rounds of permutation and substitution?",
      "id": 3102,
      "numberOfComments": 0,
      "answers": [
        {
          "answer": "16",
          "correct": true
        },
        {
          "answer": "32",
          "correct": false
        },
        {
          "answer": "64",
          "correct": false
        },
        {
          "answer": "56",
          "correct": false
        }
      ],
      "comments": []
    },
    {
      "question": "Which of the following statements is not true?",
      "id": 3103,
      "numberOfComments": 0,
      "answers": [
        {
          "answer": "TDES has a mode that uses 2 keys",
          "correct": false
        },
        {
          "answer": "TDES has a mode that uses 3 keys",
          "correct": false
        },
        {
          "answer": "TDES offers a greater protection over DES",
          "correct": false
        },
        {
          "answer": "TDES has a mode that uses 1 key",
          "correct": true
        }
      ],
      "comments": []
    },
    {
      "question": "Which of the following identifies the encryption algorithm selected by NIST for the new Advanced Encryption Standard (AES)?",
      "id": 3104,
      "numberOfComments": 0,
      "answers": [
        {
          "answer": "RC6",
          "correct": false
        },
        {
          "answer": "Serpent",
          "correct": false
        },
        {
          "answer": "Rijndael",
          "correct": true
        },
        {
          "answer": "Twofish",
          "correct": false
        }
      ],
      "comments": []
    },
    {
      "question": "Who vouches for the binding between the data items in a digital certificate?",
      "id": 3105,
      "numberOfComments": 0,
      "answers": [
        {
          "answer": "Issuing authority",
          "correct": false
        },
        {
          "answer": "Vouching authority",
          "correct": false
        },
        {
          "answer": "Certificate authority (CA)",
          "correct": true
        },
        {
          "answer": "Registration authority",
          "correct": false
        }
      ],
      "comments": []
    },
    {
      "question": "What is the primary role of smartcards in a PKI?",
      "id": 3106,
      "numberOfComments": 0,
      "answers": [
        {
          "answer": "Transparent renewal of user keys",
          "correct": false
        },
        {
          "answer": "Fast hardware encryption of the raw data",
          "correct": false
        },
        {
          "answer": "Tamperproof, mobile storage and application of private keys of the users",
          "correct": true
        },
        {
          "answer": "Easy distribution of the certificates between the users",
          "correct": false
        }
      ],
      "comments": []
    },
    {
      "question": "Which protocol makes use of an electronic wallet on a customer's PC and sends encrypted credit card information to merchant's Web server, which digitally signs it and sends it on to its processing bank?",
      "id": 3107,
      "numberOfComments": 0,
      "answers": [
        {
          "answer": "SSH",
          "correct": false
        },
        {
          "answer": "SSL",
          "correct": false
        },
        {
          "answer": "S/MIME",
          "correct": false
        },
        {
          "answer": "SET",
          "correct": true
        }
      ],
      "comments": []
    },
    {
      "question": "Which of the following keys has the shortest lifespan?",
      "id": 3108,
      "numberOfComments": 0,
      "answers": [
        {
          "answer": "Private key",
          "correct": false
        },
        {
          "answer": "Session key",
          "correct": true
        },
        {
          "answer": "Public key",
          "correct": false
        },
        {
          "answer": "Secret key",
          "correct": false
        }
      ],
      "comments": []
    },
    {
      "question": "Which of the following statements is most accurate of digital signature?",
      "id": 3109,
      "numberOfComments": 0,
      "answers": [
        {
          "answer": "It allows the recipient of data to prove the source and integrity of data.",
          "correct": true
        },
        {
          "answer": "It can be used as a signature system and a cryptosystem.",
          "correct": false
        },
        {
          "answer": "It is a method used to encrypt confidential data.",
          "correct": false
        },
        {
          "answer": "It is the art of transferring handwritten signature to electronic media.",
          "correct": false
        }
      ],
      "comments": []
    },
    {
      "question": "Which of the following mail standards relies on a \"Web of Trust\"?",
      "id": 3110,
      "numberOfComments": 0,
      "answers": [
        {
          "answer": "Pretty Good Privacy (PGP)",
          "correct": true
        },
        {
          "answer": "Privacy Enhanced Mail (PEM)",
          "correct": false
        },
        {
          "answer": "MIME Object Security Services (MOSS)",
          "correct": false
        },
        {
          "answer": "Secure Multipurpose Internet Mail Extensions (S/MIME)",
          "correct": false
        }
      ],
      "comments": []
    },
    {
      "question": "Electronic signatures can prevent messages from being:",
      "id": 3111,
      "numberOfComments": 0,
      "answers": [
        {
          "answer": "Erased",
          "correct": false
        },
        {
          "answer": "Forwarded",
          "correct": false
        },
        {
          "answer": "Disclosed",
          "correct": false
        },
        {
          "answer": "Repudiated",
          "correct": true
        }
      ],
      "comments": []
    },
    {
      "question": "Which of the following is not an objective of cryptography?",
      "id": 3094,
      "numberOfComments": 0,
      "answers": [
        {
          "answer": "Confidentiality",
          "correct": false
        },
        {
          "answer": "Integrity",
          "correct": false
        },
        {
          "answer": "<p>Availability</p>",
          "correct": true
        },
        {
          "answer": "Non-repudiation",
          "correct": false
        }
      ],
      "comments": []
    }
  ],
  "updatedAt": 1717800145540
}