What is a Hidden Layer in Back Propagation? Explain & be specific
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What is a Hidden Layer in Back Propagation? Explain & be specific.
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- Design a security protocol that will allow a Mutually Agreed Session key (Kabc) to be established between three entities A, B and C. This key can then be used to secure a chat between the three entities. I want you to develop your own design based on the conditions below.Note: The session key should NOT be known to the Chat Server (S) and the Chat Server (S) can only forward the encrypted messages to A, B and C and S cannot read the messages. The secure chat between entities A, B and C must use the Chat Server (S) and session key Kabc as below: (refer image)i.e. A, B and C Do NOT communicate directly. The following conditions apply to your protocol design.1. A, B and C Never communicate directly. 2. Each entity (A, B, C and S) have a Public Key Certificate, ie. CA<<A>>, CA<<B>>, CA<<C>> and CA<<S>>. 3. The Chat Server, S, has access to all Entity Certificates that use its service and can provide these Certificate to its service users if…Identify the type of ethical hacking in the below-mentioned scenario and defend your answer logically. *Scenario*: An XYZ Company decided to divide the penetration testing exercise into two-phase. In phase 1, the organization shared the scope of its public-facing interfaces and IP-addresses. After the completion of phase 1, the organization invited the Pen-tester to its premises and shared the scope of its private network.Chart out two diagrams of networked computers. The first diagram should be a secure network, where all traffic can be checked by a computing device to ensure that it is safe. The second should be a reliable network, where there are many paths for packets to travel so that all packets reach their destination safely and quickly. Then, consider the following questions: What are the differences between these two networks? Do you think that the users of these two different kinds of networks would notice any differences between them? What factors might be affected by the layout of these two networks, and what kinds of tradeoffs to users experience when they choose reliability or security? Can you think of an example of a real-life network you might connect to, and which category it mostly falls into? Consider school internet networks, public Wi-Fi, or cellular data networks as you think of the different ways you connect to various internet networks.
- This assignment will help you analyze how a detailed background of network concepts, standards, and protocols is important in breaking down “defense in-depth.” Before beginning, ensure you have watched all of the following videos about networking that were provided in this module’s Reading and Multimedia folder: Introduction to Networking: Network Fundamentals Part 1 Cabling Devices: Network Fundamentals Part 2 How the OSI Model Works: Network Fundamentals Part 3 How IP Addresses Work: Network Fundamentals Part 4 IP Addressing in Depth: Network Fundamentals Part 5 TCP/IP Model (Internet Protocol Suite): Network Fundamentals Part 6 Searching for Information Research the concept of “defense in depth” to identify how information technology solutions can be broken into different layers; you will also need to analyze how to enhance security at each of those layers within an organization. At a very high-level, the concept of developing defense in depth means that an organization has a…Tx Rx Alice ВОВ EVE Suppose in a wireless communication network transmitter Alice wants to send some confidential information to receiver BOB. The EVE is there to hear (confidential information) what is being communicate between Alice and BOB. In this case what types of security you will propose (From OSI layers) as a network engineer. Explain your proposed method/s and justify your answer. Maximum 400 words. Do not copy. Write it in your own way. The assignment will be checked by similarity finding registered software. Ov Hints: Go through the Application Layer, Data Link Layer, and Physical Layer security. Then you will be able to propose possible solution/s.Lin is designing a virtual private network (VPN) implementation as a class project. The assignment includes a budget she has to follow. To save money, she decided to use a VPN without a firewall. What is the problem with her decision? This approach will work only with VPN hardware devicesThis approach will not work because VPNs cannot take the place of firewalls.This approach will work only with a software VPN.This approach will work only if the VPN appliance is the primary device facing the Internet at the front of the network's demilitarized zone (DMZ)
- Attacks on Security ProtocolsConsider the following 4-message protocol:1. A → S:(B, {(A, K1)}KpbS)2. S → B:A3. B → S:(A, {(B, K2)}KpbS)4. S → A:(B, {K2}K1)And the following attack trace:1. I(A) → S: (B, {(A, K)}KpbS)2. S → B: A3. B → S: (A, {(B, K2)}KpbS)4. S → I(A): (B, {K2}K)Which one of these changes to the protocol messages would fix the attackthe attack then becomes impossible:a) 3. B → S:(A, {(B, {K2}KpbA)}KpbS)b) 4. S → A:(B, {K2, A}K1)c) 2. S → B:{A}KpbBd) 2. S → B:Be) 3. B → S:(A, {(B, {K2}KprS)}KpbS)f) 1. A → S:{(B, A, K1)}KpbSg) 1. A → S:(A, {(B, K1)}K pbS)h) 4. S → A:(B, {K1}K2)i) 4. S → A:(A, B, {K2}K1)j) 2. S → B:A, BExplain your answer below:Attacks on Security ProtocolsConsider the following 4-message protocol:1. A → S: (B, {(A, K1)}KpbS)2. S → B: A3. B → S: (A, {(B, K2)}KpbS)4. S → A: (B, {K2}K1)And the following attack trace:1. I(A) → S: (B, {(A, K)}KpbS)2. S → B: A3. B → S: (A, {(B, K2)}KpbS)4. S → I(A): (B, {K2}K)Which one of these changes to the protocol messages would fix the attack trace above, such as the attack then becomes impossible:a) 3. B → S: (A, {(B, {K2}KpbA)}KpbS)b) 4. S → A: (B, {K2, A}K1)c) 2. S → B: {A}KpbBd) 2. S → B: Be) 3. B → S: (A, {(B, {K2}KprS)}KpbS)f) 1. A → S: {(B, A, K1)}KpbSg) 1. A → S: (A, {(B, K1)}KpbS)h) 4. S → A: (B, {K1}K2)i) 4. S → A: (A, B, {K2}K1)j) 2. S → B: A, BExplain your answer below:Computer Science Below are network packet captures of malicious activity discovered on the network. Packets are captured when IDS/IPS or firewalls detect suspicious activity and then record the traffic. Depending on your configuration it may proactively block the traffic but it will ultimately end up as an alert for the SOC to investigate. The packet capture goes beyond the log files and provides a full picture of traffic on the network. In this lab you will be investigating and triaging a number of alerts as if you were a SOC analyst on call. It will be important to provide a technical understanding of the incidents but also put into context the impact to the business and identify the remediation steps. 2. The Business Implications Of These Results Explain how these detections impact the business, what are the short term and long-term risks presented?
- 3. What are the characteristics of monitor with signal in mutual exclusion? Describe in detail.Write and submit a 1-page summary analyzing how your research relates to the networking concepts discussed in the videos. Then, make sure you answer the following questions: ● ● Why is it so important for you to have a solid network background when working in information security? Why is it that security professionals often break security systems out into the layers defined by the OSI 7 layer model or the TCP/IP Stack layer?What are the potential risks associated with "connection string exposure", and how can they be mitigated?