Step into the dynamic realm of cyber security with our comprehensive blog. In an era dominated by digital innovation, protecting our online spaces has never been more crucial. Whether you’re a tech enthusiast, a business professional, or someone eager to bolster their online safety, this guide is tailored for you. Join us as we unravel the intricacies of cybersecurity, demystify the terminology, and unveil practical strategies to safeguard your digital presence.
From understanding common threats like phishing and malware to exploring the latest trends in cybersecurity, we’ve got you covered. Discover the importance of strong passwords, encryption, and proactive measures in maintaining a resilient online defense. In a world where data breaches and cyber attacks are prevalent, empowerment through knowledge is key. Let’s navigate the cyber landscape together, empowering you to stay secure and informed in the digital age. Welcome to the frontline of cyber security!
So, let’s move on to the quiz questions with answers.
Q1. True or False? In cryptography, a keyspace is the number of possible keys to a cipher.
Select one:
a. True
b. FalseQ2. True or False? In a known-plaintext attack (KPA), the cryptanalyst has access only to a segment of encrypted data and has no choice as to what that data might be.
Select one:
a. True
b. FalseQ3. True or False? You must always use the same algorithm to encrypt information and decrypt the same information.
Select one:
a. True
b. FalseQ4. Which of the following is not an objective of cryptanalysis, the process of breaking codes?
Select one:
a. Encrypt the plaintext of a target message
b. Determine the key used to encrypt a target message
c. Derive the algorithm used by a particular cipher
d. Solve the general mathematical problem underlying the cryptographyQ5. True or False? Whereas a cipher performs a particular task, a key gives the specific directions for how to do it.
Select one:
a. True
b. FalseQ6. Bob is sending a message to Alice. He wants to ensure that nobody tampers with the message while it is in transit. What goal of cryptography is Bob attempting to achieve?
Select one:
a. Confidentiality
b. Integrity
c. Authentication
d. NonrepudiationQ7. True or False? Symmetric key ciphers require that both parties first exchange keys to be able to securely communicate.
Select one:
a. True
b. FalseQ8. Which information security objective verifies the action to create an object or verifies an object's existence by an entity other than the creator?
Select one:
a. Validation
b. Authorization
c. Certification
d. WitnessingQ9. What is the only unbreakable cipher when it is used properly?
Select one:
a. Rivest-Shamir-Adelman (RSA)
b. Vernam
c. Elliptic Curve Diffie-Hellman Ephemeral (ECDHE)
d. BlowfishQ10. True or False? A private key cipher is also called an asymmetric key cipher.
Select one:
a. True
b. FalseQ11. Which type of cipher works by rearranging the characters in a message?
Select one:
a. Substitution
b. Steganographic
c. Transposition
d. AsymmetricQ12. Bob is sending a message to Alice. He wants to ensure that nobody can read the content of the message while it is in transit. What goal of cryptography is Bob attempting to achieve?
Select one:
a. Confidentiality
b. Integrity
c. Authentication
d. NonrepudiationQ13. Which of the following is not true of hash functions?
Select one:
a. Hash functions help detect forgeries by computing a checksum of a message and then combining it with a cryptographic function so that the result is tamperproof.
b. The hashes produced by a specific hash function may vary in size.
c. A hash is a checksum designed so that no one can forge a message in a way that will result in the same hash as a legitimate message.
d. The output from the message digest algorithm (MD5) or the Secure Hash Algorithm (SHA) hash provides input for an asymmetric key algorithm that uses a private key as input.Q14. True or False? A digitized signature is a combination of a strong hash of a message and a secret key.
Select one:
a. True
b. FalseQ15. Maria receives a ciphertext message from her colleague Wen. What type of function does Maria need to use to read the plaintext message?
Select one:
a. Encryption
b. Hashing
c. Decryption
d. ValidationQ16. Which set of characteristics describes the Caesar cipher accurately?
Select one:
a. Asymmetric, block, substitution
b. Asymmetric, stream, transposition
c. Symmetric, stream, substitution
d. Symmetric, block, transpositionQ17. True or False? A keyword mixed alphabet cipher uses a cipher alphabet that consists of a keyword, minus duplicates, followed by the remaining letters of the alphabet.
Select one:
a. True
b. FalseQ18. Which approach to cryptography uses highly parallel algorithms that could solve problems in a fraction of the time needed by conventional computers?
a. Quantum cryptography
b. Asymmetric cryptography
O c. Elliptic curve cryptography
d. Classic cryptographyQ19. True or False? The U.S. government currently has no standard for creating cryptographic keys for classified applications.
Select one:
a. True
b. FalseQ20. True or False? You can break a cipher by analyzing the ciphertext to find the plaintext or key or by analyzing the ciphertext and its associated plaintext to find the key.
Select one:
a. True
b. False
Answers: Cyber Security Quiz Questions
- a
- b
- b
- a
- a
- b
- a
- d
- b
- b
- c
- a
- b
- b
- c
- c
- a
- a
- b
- a