1) Two common authentication bases are_and_2) The common resources that can be targeted in DoS attacks are3) In multilevel access control every subject or object is given4) Canary values are used to protect againstby5) Lamport's one-time password scheme relies on using hash functions that are6) Two classes of intruder that an intrusion detection system may attempt to find areand7) A master password is typically used to protect8)is capable of distinguishing between humans and computers.9) Data aging in the context of intrusion detection systems relates to ensuring that10) Phishing emails are typically sent in bulk because11) The Biba model is for the purpose offromwhile BLP is for the purpose of12) Inference is the derivation of13) "Online" and "offline" attacks differ in that14) The term "shellcode" refers to15) XSS stands for16) The purpose of sanitization in the context of auditing is toin the context of

According to bartleby guidelines we are supposed to answer only 3 subparts/mcq so I have answered…

Answered: 1) Two common authentication bases are…

1) Two common authentication bases are _and_ 2) The common resources that can be targeted in DoS attacks are 3) In multilevel access control every subject or object is given

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Cryptography

Cryptography is a term used in computer science to describe secure information and communication techniques that transform messages in difficult-to-decipher ways using mathematical concepts and a set of rule-based calculations known as algorithms.

Question

1) Two common authentication bases are
_and_
2) The common resources that can be targeted in DoS attacks are
3) In multilevel access control every subject or object is given
4) Canary values are used to protect against
by
5) Lamport's one-time password scheme relies on using hash functions that are
6) Two classes of intruder that an intrusion detection system may attempt to find are
and
7) A master password is typically used to protect
8)
is capable of distinguishing between humans and computers.
9) Data aging in the context of intrusion detection systems relates to ensuring that
10) Phishing emails are typically sent in bulk because
11) The Biba model is for the purpose of
from
while BLP is for the purpose of
12) Inference is the derivation of
13) "Online" and "offline" attacks differ in that
14) The term "shellcode" refers to
15) XSS stands for
16) The purpose of sanitization in the context of auditing is to
in the context of

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Explain challenge-response authentication and its operation. This method's advantages over password-based ones are unclear.
The challenge-response authentication mechanism is a security protocol that verifies the identity of a user or system. It operates by requiring the user to provide a response to a challenge posed by the system. The challenge is typically a random string of characters generated by the system and sent to the user. The user then computes a response based on the challenge and a secret key known only to the user and the system. If the response matches the expected value, the user is authenticated and granted access. This mechanism is commonly used in various applications, including online banking, email services, and network security systems. The specific features of this method that contribute to its enhanced security in comparison to a conventional password-based approach are not readily apparent.
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