K-12 CS Teacher Professional Development Workshop
Which of the following best describes the primary way in which a distributed denial-of-service (DDoS) attack differs from a denial-of-service (DoS) attack?
A. The goal of the attack
B The number of computers being attacked
C. The number of computers launching the attack
D. The time period in which the attack occurs
The answer is C.
A DDoS attack is a DoS attack that originates from many different computers. The goal of the attack for both DDoS and DoS is the same. The number of computers being attacked is one for both attacks. The time period period in which the attack occurs should be a short period of time for both attacks. The question asks the "best" description about the attacks. The answer should be that the DDoS needs multiple computers to launch the attack. Those computers are compromised before the DDoS attack.
2. Which pillar of cybersecurity is compromised when someone logs into a system using a stolen login and password?
A. Authentication
B. Confidentiality
C. Integrity
D. Nonrepudiation
Option A is correct. Authentication is the process of confirming a valid identification. Successful use of false credentials results in incorrect identification of the user. Confidentiality is referring to information to which the public does not have general access. Integrity will make sure data are a complete piece not broken. Non-repudiation Non-repudiation refers to a situation where a statement's author cannot successfully dispute its authorship or the validity of an associated contract.