Module 3 Quiz (Cybersecurity)

What are the key security objectives of cryptography? (Select all that apply)

• Integrity

• Authentication

• Non-repudiation

• Confidentiality

If you use the Caesar cipher to encrypt the phrase “Data security” using a 5-letter shift, which of the following would be the ciphertext?

• Ifyf xjhzwnyd

• Gdwd vhfxulwb

• Fcvc ugewtkva

__________________ is when hackers divert users from legitimate websites by faking the IP address and sending them to a false website with malicious code.

• DNS poisoning

• DNS spoofing

• Censorship

• Spyware

True or false? Hackers can easily impersonate DNS servers and poison or spoof DNS addresses because it is built on the UDP protocol which does not verify the identity of senders or receivers.

• True

• False

__________________ is a computer network authentication protocol that ensures two-way authentication between the client and server over non-secured connections.

• Hashing function

• Asymmetric key cryptography

• Kerberos protocol

• Secret key cryptography

What are some of the key features of a digital certificate? (Select all that apply)

• It is tamper-resistant

• It has an expiry date

• It cannot be traced or tracked

• It contains identifying information about an entity

True or false? If a device is stolen or if a CA is compromised, it can publish a revocation list of any issued certificates that can no longer be trusted.

• True

• False

The DHCP server allocates IP addresses based on which of these packets?

• Discover

• Offer

• Request

• Acknowledgement

True or false? An evil twin attack is when two hackers simultaneously attack a network system.

• True

• False

is when a hacker inserts themselves into communication between two parties to eavesdrop or modify the conversation or steal information.

• Man in the middle attack
• DHCP starvation attack

• DoS attack

• ARP spoofing