Computer Network Questions and Answers August 03, 2022

Draw the network topology of NEIU main campus. How many buildings do we have at our main campus? What are major networking devices for each building? How do building networks connect to each other? Wireless vs. wired (with cables?) 2. Draw the network topology of your home network. Please do not give me a floor plan for your house. How many major

A network administrator needs to build a network including 5 subnets as shown in the following figure Net 1 includes 10 network devices Net 2 includes 6 network devices Net 3 includes 18 network devices Net 4 includes 22 network devices Net 5 includes 17 network devices Net2 Net3 Net4 Net5 Net1 192.28.15.0 Internet a. Lets divide the IP addresses

Resolve and specify the hardware devices required to upgrade the existence wired network to add an extra wireless network: Negotiate and List the network devices you will add, principle of their work in addition.

1. Explain about Voice mail hacking 2. Explain about VPN hacking 3. Explain about network devices 4. Explain about Autonomous System look up in Network devices

1. Explain about Service Detection in Network devices 2. Explain about Network Vulnerability in Network devices 3. Explain about Wireless foot printing 4. Explain about wireless scanning and enumeration

"Protecting network devices" - Network devices such as routers, switches and firewalls can sometimes be exploited to gain access to network resources. What are some network device security vulnerabilities and what can be done to mitigate these? What is (1) of the first things a network administrator should do when attaching a new network device to

What is the primary weakness in the ICMP protocol that makes it subject to attack and how would you configure a firewall/packet filter to prevent ICMP attacks?

Write some simple Scapy/Python code to launch the scan or icmp attack. Revise them for implementing NULL scan, large ICMP payload attack, or detection evasion etc. (1) Sample Code for FIN_Scan (you can make simple revision to turn it into other scan functions): def FIN_Scan(dstIP, dstPort): src_port = RandShort() Fin_Scan_Rsp =

Decode the ICMP header and identify ICMP data using a diagram. Header followed by the data. Use color coding to identify ICMP header and the data.

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1. Start network traffic capturing using Wireshark and then ping your default gateway to generate ICMP packets. Apply the relevant display filter to display captured ICMP packets only. Show the display filter and Wireshark captured trace. 2. Based on the recorded network traffic trace a. How many types of ICMP packets did you record b. Open the

Consider an IPv4 packet p with source address 11.125.216.2 and desti nation address 8.8.8.8, with the ICMP Echo Request payload. A router in the path with IP address 173.11.82.118 receives this packet and attempts a nonlocal packet forwarding on the packet. Assume that the router has the following forwarding table Destination Next Hop 173.12.0.016

1. ICMP messages can have a variety of forms. TTL Exceeded, on the other hand, lacks Sequence and Identifier fields. Explain how the receiver can securely identify and process all of the ICMP fields if it is not aware of them ahead of time. What sort of ICMP message to expect ahead of time? 2. Why should TTL be set in IP packets? 3. Why can't an

What are the primary methods and algorithms used in object recognition for image classification?

1. What are the basic data types available in the C programming language 2. How can you declare and initialize a variable in C 3. What is the difference between the prefix and postfix increment operators in C 4. Write a C program to demonstrate basic input and output using printf() and scanf() functions. 5. How do you declare a onedimensional

Give a business world example of each of the following: 1). a network model which would require the maximum-flow technique 2). a network model which would require the shortest-route technique 3). a network model which would require the minimal-spanning tree technique.

Design a neural network model using McCulloch & Pitts neural network model for NAND gate.

1. What is a network model 2. What are the types of network models 3. How does the hierarchical network model work 4. What is the difference between a hierarchical and a flat network model 5. What is the purpose of a network model 6. How does the mesh network model work 7. What are some advantages of using a mesh network model 8. How does the bus

What are the functions of the following python codes? model.fit(x,y, epochs =150, verbose =0) A. Generate predicted outcomes for input dataset X using an existing neural network model b. Build a neural network model using training datasets X and y c. Examine whether an existing neural network model fits data X and y. d. Generate X and y. They will

what are 3 resources you use to monitor external (or indirect) cybersecurity risk Identify 3 resources you use to monitor internal (direct) cybersecurity risk Identify 3 resources you would recommend to a non-cyber security professional to monitor their external (or indirect) cybersecurity risk Identify 3 resources you would recommend to a

The NIST Cybersecurity Framework is often used by organizations of many sizes, because it provides guid be very beneficial to establishing your own cybersecurity program and maintaining compliance with certa regulations. Many sections of these rules, policies, guidelines, and objectives can be aligned with the vari categories, and subcategories of

A cybersecurity risk-management plan is a plan designed to protect a system exposed to the Internet, internal employees, contractors, disasters, failures, and more. What are some common cybersecurity risk responses, change management, version control, and incident response processes that you might consider incorporating if you created a

How is threat modeling in cybersecurity defined? - What is a clear definition of threat modeling in cybersecurity and its significance in enhancing an organization's cybersecurity posture? - What two different evaluations can be drawn on threat modeling methodologies, including strengths and weaknesses of each method? - How it enhances an

Describe the overall organizational structure of the U.S. governments cybersecurity operations. What role does the Department of Homeland Security play in U.S. cybersecurity Describe the division of duties among federal agencies under PPD41. How did the Cybersecurity Act of 2015 affect cybersecurity informationsharing What are criticisms of the

How do you identify your stakeholders within cybersecurity at Raytheon? How do you involve your stakeholders within cybersecurity at Raytheon? What problems do you have getting stakeholders involved within cybersecurity at Raytheon?

Access Control List (ACL) and Capability Lists are the most common implementations for controlling access to objects in a system. Which of the two methods are used in UNIXLinux file systems What simplifications have been made to make the implementation more efficient

3. Give an example of an Access Control List (ACL) that cannot be equivalently described by a Unixstyle set of permissions and explain why it requires a mechanism more powerful than the permission set.

Why might an Access Control List (ACL) on a router that dropped packets from IP addresses identified as malicious be ineffective at blocking a SYN-flood denial of service attack?

Shown below is the access control list (ACL) a company currently has on its SPI firewall. Rule Destination IP Address Service (Port Number) 1 2 3 Any 10.47.122.79 Any 25 80 Any Action Allow connection Allow connection Deny connection Your task Modify the ACL to incorporate the following rules 1. No connection for Simple Mail Transfer Protocol

The following table shows a list of access matrix that defines the access rights of users Ahmad, Manal and Sundus, on 4 resources Printer, CPU, Memory and File. Objects Printer CPU Memory File Subjects Ahmad Manal Sundus Write Read Write Read Read Write Own Read Write Read a) Draw the corresponding access control list (ACL) for objects. (2 marks)

Access control can take different forms depending on the resources that are being protected. Consider following Access matrix that allocate access rights of different objects against each subject Access Matrix User 1 User 2 User 3 File 1 WRITE READ WRITE OWN READ File 2 READ WRITE OWN READ READ WRITE OWN File 3 WRITE WRITE READ a. Compare Access

Assume that we are considering enhancing a quadcore machine by adding encryption hardware to it. When computing encryption operations, it is 20 times faster than the normal mode of execution. We will define percentage of encryption as the percentage of time in the original execution that is spent performing encryption operations. The specialized

Provide a visual network diagram using the information below. WAN (Wide Area Network) Utilizes a 10 Gbps transmission speed and MPLS secondary network to back up the primary network Single router at remote locations for both primary and secondary networks Accommodates future growth in VoIP traffic on WAN LAN (Local Area Network) Internal LAN is 1

Suppose you have been hired as a security consultant in a large organization ABC.org, which has offices in three different countries: New Zealand, the USA, and the UK. This organization wishes to use a VPN (Virtual Private Network) for internal employees. This organization has decided to use IPSec-powered VPN. This organization also uses NAT

Build the following Network Topology in Packet Tracer and Implement the VPN (Virtual Private Network) to create the Tunnel between Islamabad Campus and Karachi Campus to bypass the Multan and Lahore Campus. mplement RIP Routing Protocol on all Routers. Consider the scenario in which the Software House of the SZABIST University wants to send

Tunnel 32 IP45. 1.1.1 2901 Islamabad Campus 245024 Switch5 PCPT Software House of SZABIST UNIVERSITY 2901 Multan Campus 295024 Switch6 LaptopPT Laptop0 2901 Lahore Campus 295024 Switch7 PCPT PC5 Tunnel 32 IP45. 1.1.2 2101 Karachi Campus 295024 Switch8 ServerPT SZABIST UNIVERSITY SERVER

IPsec (Internet Protocol Security), SSTP (Secure Socket Tunneling Protocol), and PPTP (Pointto Point Tunneling Protocol) are popular VPN (Virtual Private Network) protocols. Research on internet and write a paper describe each of them. Analyze and compare the three of them in detail. If you need to establish a network for a small company and want

Discuss Intrusion Prevention Systems (IPS) and many vendors enhancements to IDS systems to make them into IPSs. Host based IDS/IPS as well as hardware/software emulation based systems have been fairly hot in the market the last few years. Describe how these work and why they're so effective at stopping previously unknown threats.

Research the topics Intrusion Detection System (IDS) and Intrusion Prevention System (IPS) on the Internet and write report on them. Your report should include the following: 1. Host based Intrusion Detection System (HIDS) 2. Network based Intrusion Detection System (NIDS) 3. Comparison of HIDS and NIDS 4. Host-Based Intrusion Prevention System

What is a hybrid topology? Draw a hybrid topology with a star backbone and three ring networks for a multi-office LAN.

TC Company was, until about 20 years ago, a national telephone company that enjoyed monopoly status, but a decision to deregulate by the government means that it is now exposed to aggressive competition from new suppliers, in particular: Telephone services being supplied by cable TV companies; and Mobile phone services. TC Company did set up a

Assume that your team is developing a mobile email application. It supports a variety of email providers (e.g.. Gmail, Yahoo, Office 365, Outlook, iCloud, etc.) and allows you to manage unlimited mail accounts (max 3 in trial version). It supports IMAP, POP3, and MS Exchange and delivers a friendly UI with a wide range of visual customizations.

Email delivery uses two types of protocols. The first is made of a single protocol, SMTP. The second type includes POP3, IMAP, Exchange, HTTP, etc. which are used for accessing email. Why do we need both types Can one build an email system using only one of the two types

The earliest and the most common store-and-forward application of the Internet is electronic mail (e-mail). Describe how e-mail functions. Your discussion should include a brief description of e -mail components in terms of a clientserver application, e-mail delivery stages, email protocols: (SMTP, POP3, IMAP4, and MIME), and Spam and anti-spam

build a Network File Share Server, with the complete lab report explaining the process of creating a secure Samba file share and creating a group policy to map the file share. The company is requesting a secure way to store files for the users on the system to access. You have been tasked with updating the existing file share server by creating a

A company would like to develop a file share server on the corporate network. The file share would be used by employees and occasionally by customers, so parts of the file share would be accessible from the Internet. Some employees would share files with each other, but most would simply store files which would only be visible and usable by them.

Explain the key network services (NAT, DHCP, and DNS) required to operate for a client in a Windows based network. What tool did you use to set up your IP? What will happen to your client PC if any of these network services are not available?

a. Suppose you are required by your employer to investigate on the performance of the network service that you are getting from your Internet Service Provider (ISP). You have used the ISPs web based SpeedTest application and presented the results to your superior, but he is still not convinced by the results. Develop an alternative performance

Deploy, configure and test the following network services in fedora 37. And take a screenshot for all steps. 1 Finger Server. 2 Domain Name System Server. 3 VNC server.,Deploy, configure and test the following network services in fedora 37. And take a screenshot for all steps. 1 Finger Server. 2 Domain Name System Server. 3 VNC server.,Deploy,

As a network service provider, XYZ Network Solutions provides high speed network services to many clients such as government, banks, and internet-based businesses. What is the primary security consideration for XYZ Network Solutions? Confidentiality? Availability? Integrity? How can the clients of XYZ Network Solutions assure themselves of

A Big Data Network services application wishes to exchange 10 Gbytes of data from peer endpoints that are connected to node A, and to node F, in graph G. a. Explain in concrete technical detail what occurs to effectuate the exchange using the TCP transport protocol. The level of technical description must span Network Services Layer to the Network

What are Types of network service virtualization and how its work Types of network service virtualization with a suitable diagram and its benefits.

(Q). Write a short note on Bus Topology.

(Q) Write a short note on PAN.

(Q) Write a short note on PeertoPeer Network.

Write a network diagnostics bash script that does the following: Finds the IPv4 address of the default gateway on your machine (one way to get this is the 'default' entry, also shown as 0.0.0.0, in the output of 'ip route') and runs a ping (with a count of 5 pings) to it. Runs another count of 5 pings to the site example.com. Outputs a 1-line

Explain what a network diagnostics tool is and how it is used in organizations. Describe how each of your chosen tools work. How are they similar? How do they differ? Create a table where you compare and contrast each tool in terms of functionality, advantages, disadvantages, etc. Make a final recommendation for the tool you think is most

Explain how traceroute works. Include a traceroute to a host at least 8 hops away.

Briefly explain how traceroute works and use FiniteState Machine (FSM) to illustrate how traceroute works (only focus on the local traceroute process and ignore the remote process)

Using the skeleton code below, implement ICMP traceroute using scapy. Do NOT use the built-in scapy traceroute function. Perform a traceroute to 8.8.8.8.

from scapy.all import ttl while True a IP (dst b ICMP () P ab pkt srl (p, verbose if (1) else (2) 7 0) ttlttl) (3) 0 print (Complete , pkt IP.src) break print (TTL d, Source ttl 1 gttl, pkt IP.src)

Discuss how the device manager works and how this tool to assist systems administrator with installations, updates, rollbacks, and network troubleshooting issues. Pick out a specific troubleshooting problem and discuss how the device manager might assist troubleshooting it.

Briefly explain the network troubleshooting functions of the Wireshark tool at different OSI layers

What do you think is the most practical network troubleshooting methodology? Which methodology do you think you will use in the field and why? Is your methodology listed as a type, or do you think you will make up your own hybrid? Explain.

30. The following figure shows the Network of an organization. The Internet Network Information Center assigns 160.230.0.0 class B IP address to the organization. Your job as network manager is to assign IP address to each network to cach host and network. Use only 5 bits for subnetwork ID (160.230.XXXXX YYY) 1. What is IP address For CS Dept 2.

Write the default IPv4 class with Subnet Mask in decimal format for each router according to the required number of IP addresses without wasting much of the IP addresses in sequence below?

R1 R2 R3 R4

What are the two IP addresses of the hosts and the two port numbers in these communications? Which IP address is an internal IP address? Which IP address is an external IP address What is the application layer protocol used in these communications? Which IP address is providing the service (as a server)? Which IP address is requesting the service

Complete Table 1 below according to the following requirements using the original network address 172.16.16.128/25 a. Use a minimum number of bits to accommodate all required hosts. b. The gateways are the first usable host address(es) of each subnet. c. The switch is the last usable host address of each subnet. Peace LAN Subnet mask Peace LAN

Peace Lan 24 Hosts G01 5th Host SAFE GO0 Figure 1 Secure Sw Secure LAN 55 Hosts 10th Host 20th Host 30th Host

The network shown above illustrates a small network representing wired and wireless network segments. In the interest of space, the network design will only show three workstations. However, the actual network will have the following characteristics: a. The subnet switch is a managed switch requiring an IP address. b. There are to be 10 users in

RouterPT RouterMain ServerPT Server1 WRT300N WIFIAP CloudPT ISP 296024TT Switch1 PrinterPT Printer1 LaptopPT Laptopo LaptopPT Laptop1 LaptopPT Laptop2

Assume that you are a network engineering specialist and have been assigned the task of subnetting a classless network with the IP address 192.168.10.024. Your goal is to divide this network into multiple subnetting and you need to determine the following 1. Mask address 2. All subnetwork addresses. 3. Broadcast address for each subnetting 4. The

You have been allocated the Network Address 175.94.0.016 Your subnetting requirements are LAN A LAN B LAN C LAND LAN E 650 hosts 180 hosts 75 hosts 50 hosts 25 hosts Complete the subnetting task and enter your answer in the table below. Please ensure you put your subnet mask in slash notation Sub network LAN A LAN B LAN C LAN D LAN E Pointto point

Zero Trust is a network security model that, according to Google, considers both internal networks and external networks to be completely untrusted. It is a decentralized authentication model that requires strict identity verification for every user and device that wants to access network resources. Zero Trust is not a solution you can purchase

Zero trust is a security stance for networking based on not trusting any users, devices, or applications by default, even those that are already on the network. The zero trust model uses identity and access management (IAM) as a foundation for an organizations security program. For this assignment: Research the zero trust model. Write a report

In this discussion board post, you will analyze how Zero Trust can help protect against malicious behavior and malware attacks. Please analyze and discuss the following The Zero Trust model is built upon the following 5 assumptions The network is always assumed to be hostile External and internal threats exist on the network at all times The

Describe the prospective Future trends in networking Consider future trends in networking such as SDN, 5G, 4D Network, Open Network Switches, cloud, IPv6, Multi-Band Routers, AI application

Find Av and Ai for the common base network in the figure

Ii Rs ww Vs 100.0 6Y 22 V 2,2K 47K 3 R5,6K

how Microsoft use Neural Network Algorithm in the company to improve AI?

Design your own network in packet tracer or any simulator in consideration of the following factors a. Gain visibility and control by end-users b. Realize strategic solutions of your designed network (use of network protocols such as BGP, OSPF) c. Future trends in networking: Consider future trends in networking such as SDN, 5G, 4D Network, Open

Describe the human biological neural network and how it works Describe the McCulloch-Pitt neuron model, a.k.a. Threshold Logic Unit, that is considered as the simplest neural network and how it works. Discuss how the pioneers in the AI field did imitate the human biological brain system to conceive the first artificial neural networks.

draw a network diagram that illustrates the process of supply chain management in a global manufacturing company

1. You are the CIO of a large financial organization that is investing in AI. Your organization has a portfolio in EV. What type of AI networks they should invest in?. Explain the rationale behind your selection and the working of the AI system used.

Explain Theory about 5G Network Infrastructure, and its working principle?

Compare the following Five (5) IoT Security Challenges dealt by the Amazon web services and microsoft azure CSP: Control, Compatibility, Confidentiality, Integrity, and Updates. Compare the following Seven IoT Security Issues managed by the Two CSPs(Amazon web services and Microsoft azure ): Privileged User Access; Regulatory Compliance; Data

1)explain in detail about limitations of classical cryptographic approaches iot security ?advantages and disadvantages? explain in detail?

Discuss the Layered Application architecture of IoT networks, list and discuss any four (4) of the IoT security challenges with examples. You can upload your diagram.

TQ Cloud 2-a company offers customers access to servers, storage, and networking resources within their data center. what type of service does this represent? software as a service (saas) platform as a service (paas) database as a service (dbaas) infrastructure as a service (laas) i don't know this yet. 3-what describes the relationship between

provide at least two current areas of impact for edge computing and two more for cloud computing and give real-world examples of how edge computing and cloud computing are used?

considers an Autonomous VehicletoInfrastructure use case where a driverless car is supported by a Mobile Edge Computing environment.

Introduction and definition of Edge Computing and Internet of Things List and Explain the different types of Edge Computing and Internet of Things Explain how IoT is used in Medical Field, Industrial Control, Domestic and Home Automation, Smart Cities, Security and Emergencies and Smart Emergencies Advancements of Edge Computing and Internet of

Introduction on 5G, Mobile Management, Mobile Edge Computing and IoT Should list and explain the Advancements in 5G, mobile management, Mobile Edge Computing and IoT List and explain Benefits, Advantages, Disadvantages and Concerns of 5G, Mobile Management, Mobile Edge Computing and IoT list and explain Business and Technical benefits of mobile

Block chain is called the trust protocol a) Using an example, explain how this trust protocol works. b) Using diagram explain in detail the concept of distributed ledger technology. Draw the iot architecture of the above application and explain how this application works using this iot architecture.

Write down some reallife IoT applications. If you want to design any IoT applications, what are the important components of the Internet of Things Which digital communication protocol will be used for IoT among UART, SPI, and I2C (10 pts)

2a Consider the following loT network topology figure 2.a, students need to design loT based network in packet tracer. (10 Marks) ii. iii. iv. V. Laptop1 vi. Registration Server MEC MCUO Figure 2.a 2b For the above loT network design, Student needs to configure and examine functionality of the loT network and devices. i. Smoke Detector Celling

Find out the location of each node based on multilateration with the information of anchor node coordinates and the distance between nodes given in the figure. Show how the DVHOP adhoc positioning technique can be used to estimate the location of each node B (1,3) O 6.5 (4.2) 7.5 (10, 6)

Do you think default settings on IoT devices should be set to stringent when shipped from the manufacturer? Should IoT hubs be configured to scan the IoT network to identify vulnerabilities that the end user can correct? As a consumer, what do you see as the pros and cons to these two questions? As an IT professional, can you think of any privacy

XYZ is a global manufacturer of protective and specialty packaging for food and consumer good as well as cleaning and hygiene solutions known for brands like Bubble wrap, Cryovac and Diversey Care cleaning and hygiene. XYZ wanted to improve some of their products as their customers wanted to increase energy efficiency and compliance. To do this,

For sending signals far, in an IoT network using low power energy, what type of wireless communication and protocols you are suggesting? Why?

Devices that belong to the IoT network contain sensors that can detect something about the device's surroundings, such as pressure, temperature, or motion. a. True b. FalseA:

Create a simple smart home smart city IoT network using cisco packet tracer Minimum of three new IoT devices Appropriate device configuration Reflects real world scenarios/purpose.

there are several advanced socket function which we can use to access additional functionality of the network socket. a) Discuss THREE (3) advanced socket function in term of its functionality and usage (6 Marks) b) Please suggest code in C to resolve a hostname to IP Address using advanced socket function (4 Marks)

explain and provide relevant code usage examples for the following Standard UNIX SOCKET API function in C Socket Bind Listen Accept Connect

a) Compare the technique Basic NAT (Network Address Translation) with NAPT (Network Address and Port Translation). what each of them means and in what situations could they be applied. b) NAT and especially NAPT cause problems with the functioning of many applications. Describe what kinds of applications suffer from NAT and how the problems could

List and describe each of the four levels of components that make up an NPS (Network Policy Server) environment that supports AAA activities. Include in your descriptions the functions and possible outcomes of each level.