Question: 3. [10 points] Suppose an IDS is 90% accurate, so that there is a 10% chance of false positives or false negatives. There are

3. [10 points] Suppose an IDS is 90% accurate, so that there is a 10% chance of false positives or false

3. [10 points] Suppose an IDS is 90% accurate, so that there is a 10% chance of false positives or false negatives. There are 500,000 log entries registered by the IDS, where 200 of these entries are actual malicious events. How many times will the alarm be sounded and how many are false negatives? 4. [10 points] Suppose Bregman is trying to establish a TCP connection with Altuve. When Bregman sends the ACK response to complete the 3-way handshake, the sequence number is 128614593 and the acknowledgement number is 846280196. What are the sequence numbers for the SYN request and SYN- ACK reply packets? 5. [10 points] Seager wants to perform a DNS cache poisoning attack, where DNS IDs are 24 bits long. Based on the birthday paradox analysis, how many DNS requests and equal number of fake responses would he need to make in order to get a 40% chance of succeeding?

Step by Step Solution

★★★★★

3.40 Rating (153 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Question 3 Question 3 How many times will the alarm be sounded and how many are false negatives Given Total number of log entries 500000 Actual malici... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Programming Questions!

Collins invested $87,000 cash in the business. Paid $27,000 in cash for equipment. Performed services for cash amounting to $8,700. Paid $3,500 in cash for advertising expense. Paid $2,700 in cash...

Planning is one of the most important management functions in any business. A front office managers first step in planning should involve determine the departments goals. Planning also includes...

For the 747 that carried the Space Shuttles, consider the cylindrical strut that supported the nose of the Shuttle (see photo). Assuming potential flow about a cylinder, estimate the pressure on the...

3. [10 points] Suppose an lDs is 90% accurate, so that there is a 10% chance of false positives or false negatives. There are 500,000 log entries registered by the IDS, where 200 of these entries are...

need help on stats 243 project Project Conditional (non independent) Probability COMID's been pushing us around for (as write this just about 2 years. And I know that we're all sick as hell of...

Follow the steps given in Machine Learning With R , Chapter 5, section "Example Identifying Risky Bank Loans Using C5.0 Decision Trees." download the credit. csv file from Packt Publishing's website...

2. Assume that 1% of the one million people living in a city are currently infected with COVID 19, Further 1. Suppose the test for a disease has a sensitivity of Boss, meaning that if that person has...

Algorithms in Artificial Intelligence (or, the old name: Introduction to Algorithmic Decision Making) Part 1 Based on slides by David Sarne and Lirong Xia Course Tentative Schedule Introduction...

Find the probability distribution of the random variable W in Exercise 3.3, assuming that the coin is biased so that a head is twice as likely to occur as a tail.

In the circuit of Fig. 13.98, find the value of the coupling coefficient k that will make the 10- Î© resistor dissipate 320 W. For this value of k, find the energy stored in the coupled...

For an event to be recorded in the accounting records, it a . should impact a financial statement element and should be a faithful representation b . should be an external transaction and should...

Suppose that we want to approximate In(2) using numerical quadrature and if the function used in the integral is f(x) Select one: O a. If we use the composite Simpson's rule with three applications...

2. Explain the definition of each 5P strategy proposed by Mintzberg and give 2 examples of each? Plan Perspective 5 Ps of Ploy Strategy Position Pattern

Describe Cu2O in terms of linked polyhedra.

What is the supportability analysis? What is its purpose and what is included? When is it accomplished in the system life cycle?

Assuming that a single component with a reliability of 0.85 is used in a unique application in the system and that one backup spare component is purchased, determine the probability of success by...

After a promotion, Dawson recelves a large private office and a reserved paring space. He decides to begin weang a suit to work, just ike the top-level executives. These changes refiect which level...

Maximum urgency first (MUF) is a real-time scheduling algorithm for periodic tasks. Each task is assigned an urgency that is defined as a combination of two fixed priorities and one dynamic priority....

In a number of early computers, an interrupt caused the register values to be stored in fixed locations associated with the given interrupt signal. Under what circumstances is this practical...

An interactive system using round-robin scheduling and swapping tries to give guaranteed response to trivial requests as follows: After completing a round-robin cycle among all ready processes, the...

10. What good does it do for an olfactory axon to have copies of the cells olfactory receptor protein?

8. If two olfactory receptors are located near each other in the nose, in what way are they likely to be similar?

9. What is the mean life span of an olfactory receptor?