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 CISA Certification Practice Test  

Features Of CertGear's CISA Certification Practice Exam

  • Learn As You Go - Detailed explanations tell you not just the right answer, but why the right answer is right and the wrong answers are wrong. References for further study are also provided.

  • Customized Options - You decide the way you want to take the testing including:
    Timed, Live scoring, Randomization, Ask Incorrect, Show Answer, Select # of questions.

  • Ask Only The Questions You Got Wrong - This is a great feature. At the end of the exam, instead of being asked every question again, you can tell the test engine to only ask you questions that you got incorrect.

  • Randomization - The tests in our certification mode are dynamic, not fixed like some other practice tests are, so you'll get a new test every time. Each test is timed and the objectives are weighted the same as on the real exam.

  • History - The test engine keeps a history of all the exams and scores you have achieved on those tests. You can easily track your progress and help determine when you are ready to take the actual exam.

  • Categories - Many tests contain categories for you to selectively study topics. Additionally, you can see your grade in each category at the end of the exam.

  • Graphic Scoring - Graphical Breakdown Of Exam Results To Pinpoint Areas To Focus Your Study Effort..

  • Updates - Keep Up-To-Date With The Most Current And Most Accurate Exam Questions / Answers / Explanations With Complimentary Product Updates.

 

Free CISA Certification Sample Questions:

Alice wants to send a digitally signed message to her friend Bob. All of the following statements are true EXCEPT:

  • [Ans: B]

  • To create a digital signature for a message, the data to be signed is encrypted by an algorithm that takes as input the private key of the sender. (Alice). Largely due to performance reasons, the entire message data is not typically encrypted, but rather a digital thumbprint of the message (hash / digest) is created and then encrypted.

    The hash of the message, which was encrypted with the sender's (Alice) private key, acts as a digital signature for that message. The receiver (Bob) verifies the signature by applying the same hash function as the sender (Alice) to the message that was sent, and decrypting the encrypted message digest using the sender's (Alice) public key. If the two values match, the receiver has successfully authenticated the signature.

    The digital signature is created as follows:

    • 1) The sender (Alice) of the message uses a message digest function, such as SHA-1, MD5 to create a message hash / digest of the message contents.
    • 2) The digest is then encrypted using the private key of the sender.
    • 3) This encrypted digest is then attached to the message as the digital signature.

    The digital signature is verified as follows:

    • 1) The receiver of the message uses the sender's public key to decrypt the digital signature. If it decrypted successfully, the receiver knows that the message came from the holder of the private key.

      • If decryption of the digital signature using the sender's public key fails, someone may be attempting to impersonate the sender.

    • 2) The receiver then uses the message digest function to calculate the hash associated with the message contents. If the hash is the same value as the one decrypted from the digital signature, the receiver can be confident that the message was not altered or modified in transit.

      • If the hash values are different, the message may have been altered after signing, or corrupted in transit. In addition, if the sender and receiver are using different hash functions (MD5 versus SHA-1), the hash comparison will also fail.




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