Cyber Attack Countermeasures : Module 4

 Cyber Attack Countermeasures : Module 4 Quiz

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1.

Question 1

CBC mode cryptography involves which of the following?

1 / 1 point

Mediation of overt channels

Mediation of covert channels

Auditing of overt channels

Auditing of covert channels

None of the above

Correct

Correct! CBC mode is specifically designed to close covert communication channels in block encryption algorithms.

2.

Question 2

Which is a true statement?

1 / 1 point

Conventional crypto scales perfectly well

Conventional crypto scales poorly to large groups

Conventional crypto does not need to scale

All of the above

Correct

Correct! The symmetric key based method inherent in conventional cryptography does not scale well to large groups.

3.

Question 3

Public Key Cryptography involves which of the following?

1 / 1 point

Publicly known secret keys

Publicly known private keys

Publicly known public keys

All of the above

Correct

Correct! Public keys, by definition, are publicly known.

4.

Question 4

Which is a true statement?

1 / 1 point

Encryption with secret key requires decryption with the corresponding public key

DES is more expensive than public key crypto

Public key crypto absolutely requires hardware implementation

All of the above

Correct

This is a correct statement!

5.

Question 5

Public Key Cryptography accomplishes secrecy through which of the following?

1 / 1 point

Decryption with the KDC’s secret key

Encryption with the sender’s private key

Decryption with the sender’s private key

Encryption with the recipient’s public key

All of the above

Correct

Correct! Secrecy is accomplished via encrypting with the public key of the recipient.

6.

Question 6

Public Key Cryptography accomplishes digital signatures which of the following?

1 / 1 point

Decryption with the KDC’s public key

Encryption with the sender’s secret key

Through bank e-Commerce

All of the above.

Correct

Correct! A digital signature is accomplished by encrypting with the sender’s secret key.

7.

Question 7

Which is a true statement?

1 / 1 point

Sent messages are encryption keys in Diffie-Hellman

Diffie-Hellman combines secrecy and digital signature

Diffie and Hellman received the Turing Award for their work

All of the above

Correct

Correct! All are true statements.

8.

Question 8

Certification authorities support public key management through what means?

1 / 1 point

Issuing keys

Binding names to addresses

Binding names to public keys

None of the above

Correct

Correct! CAs bind names to public keys and the result is a certificate.

9.

Question 9

Secure Sockets Layer (SSL) relies on which of the following?

1 / 1 point

Packet design

Browsers

Server hardware

All of the above

Correct

Correct! SSL relies on certificate being embedded in browsers.

10.

Question 10

James Ellis and Clifford Cocks deserve credit for which of the following?

1 / 1 point

Keeping secrets

Having integrity

Inventing secret encryption (essentially public key technology)

All of the above

Correct

Correct! In addition to inventing public key technology, they also showed great honest and integrity by not compromising secret government information.

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Cybersecurity Capstone: Breach Response Case Studies All Quiz Answer | Third-Party Breach Graded Assessment & Ransomware Graded Assessment | Week 3

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Third-Party Breach Graded Assessment

Question 1) True or False. According to a 2018 Ponemon study, organizations surveyed cited "A third-party misused or shared confidential information..." as their top cyber security concern for the coming year.

• True

• False

Question 2) How effective were the processes for vetting third-parties as reported by the majority (64%) of the companies surveyed?

• Highly effective

• Effective

• Somewhat or not effective

• Not effective at all

Question 3) In the first few months of 2020 data breaches were reported from Instagram, Carson City, Amazon, GE, T-Mobile, radio.com, MSU, and Marriot. While different data were stolen from each organization, which two data elements were stolen from all of them ? (Select 2)

• Corporate financial data

• Confidential corporate strategy data

• Customer financial information

• Personal information

Question 4) True or False. More than 63% of data breaches can be linked to a third-party.

• True

• False

Question 5) According to a 2019 Ponemon study, which is the most common course of action for a consumer who has lost personal data in a breach ?

• Tell others of their experience

• Use social media to complain about their experience

• Comment directly on the company's website

• File a complaint with the FTC or other regulatory body

Ransomware Graded Assessment

Question 1) You get a pop-up message on your screen telling you have been locked out of your computer and that access will remain blocked until you pay a fee to have your access restored. What type of ransomware has attacked your system ?

• Blockware

• Leakware/Doxware

• Locker

• Crypto

Question 2) You get a pop-up message on your screen telling you that embarrassing photos taken of you at a college party many years ago have been downloaded and will be made public unless you pay a fee. What type of ransomware has attacked your system ?

• Leakware/Doxware

• Crypto

• Locker

• Blockware

Question 3) You get an email from your Internet service provider addressed to "Dear Customer" asking you to log in and verify your credentials due to "suspicious activity" detected in your account. This email is most likely trying to exploit which attack vector ?

• Malicious Links

• Remote Desktop Protocol (RDP)

• Software Vulnerabilities

• Phishing

Question 4) A person you meet at a party offers to help you optimize your computer so you arrange for her to log in remotely. The next time you reboot your system, you get a pop-up message telling you all your critical files have been encrypted and you must pay a ransome to get the encryption key. What attack vector was used to exploit your system?

• Remote Desktop Protocol (RDP)

• Software Vulnerabilities

• Phishing

• Malicious Links

Question 5) You fear that the security patches sent out by the vendor of one of your products may introduce changes to what you are used to so you never allow the updates. What attack vector are you setting yourself up for ?

• Malicious Links

• Remote Desktop Protocol (RDP)

• Software Vulnerabilities

• Phishing

Question 6) You log into your bank and see an offer for a 0% interest rate loan. You click on the link to check out the details and suddenly your computer is locked and there is a message demanding payment in order to unlock it. Your bank's website was hacked! What attack vector was being used to install ransomware on your system ?

• Remote Desktop Protocol (RDP)

• Phishing

• Software Vulnerabilities

• Malicious Links

Question 7) True or False. Being vigilant about email you receive, links your follow and websites you visit is an effective way to keep yourself safe from a ransomware attack.

• True

• False

Question 8) Which ransomware used fake Adobe Flash download websites to distribute and install ransomware?

• Jigsaw

• GoldenEye

• WannaCry

• Bad Rabbit

Question 9) True or False. It is feared that in the future our cars, homes and factories may fall victim to ransomware attacks as more and more devices join the Internet of Things.

• True

• False