Computer Network Questions and Answers August 01, 2022

Assume a packet is made only of four 16bit words (A7A2)16, (CABF)16, (903A)16, and (A123)16. Show the checksum at the sender. If the second data item is changed to (AB3D)16 and the third data item is changed to (04BD) 16 during transmission, check if there is any error at the receiver site. (Hint The given words are in hexadecimal value, that

What do you mean by Network Topology?

What do you mean by Node?

What are the three fundamental characteristics that determine the effectiveness of the data communication system?

Design a combinational circuit to convert a 4bit binary number to gray code using (a) standard logic gates, (b) decoder, (c) 8to1 multiplexer, (d) 4to1 multiplexer.

. Suppose the PDA P (Qgo, q1), E(0,1), rZo, X), , qo, zZo, Fq) has the following transition function a. 8(go, 0, Zo) (go, XZo). b. (qo, 0, X) (go, XX). c. 8(go, 1, X) (go, X). d. 6 (go, , X) (q, 2). e. 8(q1, 2, X) (91, 2). f. 8(q, 1, X) (9, XX). g. 8(q1, 1, Zo) (q1, 2). Starting from the initial ID (qo, w, Zo), show ALL the reachable IDs and

1) Design the following welded connection. (St. 37), (YD.1H). t10 t14 4) 2) a) Check the following welded connection (St. 37), (YD.1H). P. 1,5 t t 12. 100 4 200 P23,5t (r.) JL 80.80.8 3) Check the following welded connection. (St. 37), (YD.1H). 1 260 sali A....L b) In addition to the existing load determine the maximum values for tension and

For a normally consolidated soils, a consolidatedundrained triaxial test was conducted and the following results were obtained Chamber confining pressure100kNm Deviator stress at failure150kNm (a) Determine e and (total stress). (b) If the effective frictional angle is o36, determine pore water pressure developed in the clay specimen at failure.

Suppose we have two hosts, A and B. Host A sent file with 3000 bits to B as one large message with following information Distance between both is 3 kilometers. A and B connected by a direct link of R 1 Mbps. Imagine the propagation speed over the link is 2105 meterssec. Calculate the propagation delay. Considering that file is sent it

In a network with a bandwidth of 100 Mbps and a round-trip time (RTT) of 50 milliseconds, what is the maximum achievable throughput using the TCP protocol?

Be creative by laying out specific overseas and local factory locations, type of inputs and outputs factories use, different delivery time from when an order is placed to the time arrives to a Canadian port (air, sea or land).

How infosecurity firms enhance protection of the clients information from unauthorized hackers.

Q1. Describe the function of any 3 three layer of OSI Model. Q2. Explain any Five components of computer network. Q3. Explain various types of computer network?

What are the two types of IPv6 multicast addresses, andwhich one of them is used in Layer 3-to-Layer 2 address resolution?

What are the different types of delays?

Explain Architecture of network topology.

What is the purpose of the MAC address table and how does a switch learn from the MAC address?

Explain the same-layer interaction and how it is different from the adjacent-layer interaction

For the work breakdown structure (WBS) for Project B, the project manager determined that the second level of the WBS has violated an important principle of scope management. At present, the project team is engaged in the project planning phase concerned with creating the WBS. WBS ID Description 0.0 1.0 2.0 2.1.1 2.1.2 2.1.3 2.1.4 Project B

Benefits of computer networks?

Explain the OSI Model in computer networks and provide a comprehensive overview of each layer along with the devices commonly associated with and operating at each layer. Elaborate on the specific functions that each layer performs within the model.

What is WordPress? Describe its primary purpose and usage.

Explain the concept of "Quality of Service" (QoS) in computer networking. What mechanisms and techniques are commonly used to implement QoS, and why is it important in modern networks?

Red Star National Hospital system has 4 hospitals (H1, H2, H3, and H4). They need your service to establish a new data communication Network. The location of H1: Fairfax, VA The location of H2: Dallas, TX The location of H3: Los Angeles, CA The location of H4: Columbus, OH WIDE AREA NETWORK REQUIREMENTS (EXPECTATIONS) Hospitals must be connected

Recall the simplified TCP throughput equation TCP throughput 1.22. MSS RTT L (a) Provide a derivation of this equation utilising a figure. Include a description of each term of this equation and example values (including units). 6 marks (b) What does this equation imply for networks of 10 Gbits throughput. 3 marks (c) What important TCP congestion

Youre a detective for the local police. Thomas Brown, the primary suspect in a murder investigation, works at a large local firm and is reported to have two computers at work in addition to one at home. What do you need to do to gather evidence from these computers, and what obstacles can you expect to encounter during this process? Write a two-

Introduction Image classification is the most crucial domain in which neural networks play a significant role. The neural network accepts the input images and provides an output classification. In this project, develop an image classifier using basic neural networks with few different optimizers. Dataset The MNIST digits dataset provided by Yann

You work at the CITE Managed Services provider (CITEMS) as a Junior Service Desk Officer. To help you develop your skills, your supervisor asked you to help him setup an IT System for family friends Mark and Marika. They have plans to start a new home business providing gardening services to their local community. The gardening services include

In November, 2020, Container Corporation was examining the following two capital budgeting investment proposals for the upcoming year: Proposal #1 -- replace a packaging machine that was causing considerable problems on the assembly line Proposal #2 -- install a new series of machines that would greatly improve the process of plastic- film-bubble

Assume that 2 computers are using STDM to take turns sending 1Kbytes packets over a shared channel that operates at 64 Kbps. If the hardware takes 100 microseconds after one computer stops sending before the other can begin, how long it takes for each of the computers to send a 1Mbytes data file?

Suppose That Alice And Bob Are Employees Of A Fake Company Named Foobar. All Employees Of The Company Use The RSA Protocol For Encrypting And Signing Their Emails. RSA Public Keys Of All Employees Are Stored In A File On The Companys Server. The Contents Of This File Are Available For Public View On Foobars Non-SSL Enabled Key Download Web Site,

Explain HTTP in detail.Capture packets using Wireshark and save the packets ofinterest.DownloadWiresharkfromwww.wireshark.organdinstallit.LaunchWireshark andcapture

Wireless networks performance varies from wired networks, the latter uses a guided medium and wireless networks use unguided medium for transmission. To design and simulate wireless networks the network simulator - 2 (NS - 2), an open source discreet event simulator could be used. The NS-2 simulator is a widely used simulation tool, which could

1. (50 points) We experiment with permissions on files in this exercise. a. Find out the permissions on etcpasswd and explain the meaning of the permissions. b. Find out the permissions on command mount and explain the meaning of the permissions. You can find the path to the program with which command which mount. c. What is the primary group of

Assume that a 5bit right shift register is initially clear. We wish to store the 10011. What will be the pattern after the 4th clock pulse Attach your state table.

Making a basic shell in C language. There will be an incomplete shell to work off of. Your basic shell should prompt the user to enter a command, read in a text string from the user, parse the text string to determine a command, execute the command, and repeat these steps forever. Your shell should be able to execute a variety of commands. Your

Explain and justify your answers. Explain the fields of /etc/shadow file by given examples. (15 points) 6. Write the following commands: a. Adding new username user1 b. Locking the test2 account. c. Switching from userl to root.

1 x 1000,000,000 bps 2 1.2 s 1.2 s 1.2 s 0.08 s 8 x 10 x 1000,000 b 1.28 s 3 x 100,000,000 ms 1.2 Gb 120 Mb 360,000 x 1000 m 120 b 1 x 1000,000,000 bps 1.2 s 2 360000 m 2.48 s Suppose a 1Gbps pointtopoint link is being setup between the Earth and a new lunar colony. The distance from the moon to the Earth is approximately 360,000 km, and data

Hacker breaks into a Web server running on a Windows 2000based system. Because of the ease with which he broke in, he concludes that Windows 2000 is an operating system with very poor security features. Is his conclusion reasonable? Why or why not? Can the UNIX Bourne shell variable HOME, which identifies the home directory of a user to programs

The database BreastCancer_Wisconsin: .. _breast_cancer_dataset: Breast cancer wisconsin (diagnostic) dataset -------------------------------------------- **Data Set Characteristics:** :Number of Instances: 569 :Number of Attributes: 30 numeric, predictive attributes and the class :Attribute Information: - radius (mean of distances from center to

Homework 2 Using the database (a) Apply Hierarchical Clustering with different linkage criteria (Ward, Maximum or complete linkage, Average linkage, Single linkage) and discuss the results obtained. BreastCancerWisconsin (b) Apply the kMeans clustering algorithm with parameters optimization and evaluate the performance, discuss the results

A server engineer creates a new virtual server for a client. Before turning the server over to the client the server engineer makes a clone of the new server. The client demands to have sudo access so the server engineer turns the server over to the client with sudo access. Next the client types in this command: $ sudo rm -fr/ -no-preserve-root

SNOWFLAKE (local) Properties General Security PFP Event Logging Enable IP routing Allow IPbased remote access and demanddial connections IP address assignment This server can assign IP addresses by using Dynamic Host Configuration Protocol (DHCP) Static address pool From 192.168.5.225 192.168.5.230 Add. To Edr... OK Number 6 FIGURE 9.33 Creating

Figure 3.19 is a network diagram for Johnson Cake Candle company. It will be using ISA Server to protect access to their internal network while allowing employees to access the Internet. The diagram shows subnets on both sides of the proposed ISA server and the network card addresses of both NICs in the server. Use the table that follows to

Internal Network 192.168.4.0 Internet FIGURE 3.19 Johnson Cake Candle Company network information.

Consider the following diagram that represents the classical server client model where 6 clients need to download a file from the server bu server upload bandwidth File of Size S server bu bu bu bu Network with Infinite Bandwidth, bu peer i download bandwidth Let the file size be 2 x 10 Bytes. Let the upload bandwidth at the sever be 5 x 106

What happens when you give the following commands if the file named done already exists? $ cp to_do done $ mv to_do done 2.Which command can you use to look at the first few lines of a file named status.report? Which command can you use to look at the end of the file? 3.Try giving these two commands: $ echo cat $ cat echo Explain the differences

Consider the network topology shown below. The topology consists of multiple routers interconnected by fullduplex links. Each link has a static cost associated with it, which represents the cost of sending data over that link. For example, the link from B to F has a cost of 6. All of the links are symmetric (i.e. the cost is the same in both

Consider a TCP flow over a 1Gbs link with a latency of 1 second that transfers a 10 MB file. The receiver advertises a window size of 1 MB, and the sender has no limitation on its congestion window (i.e., it can go beyond 64 KB). (a) How many RTTs does it take until slowstart opens the send window to 1 MB (b) How many RTTS does it take to send the

we used the somewhat arbitrary measure of power to characterize network performance. The usual definition of power, P, is given by load average delay (a) Explain why this definition of power is commonly used, and in what sense it is arbitrary (b) A commonly used approximation to the relationship between normalized load (which can 1 vary between 0

ISP Shiny Net connects customers to the Internet with a symmetric 40 Mbits link. The ISP gateway routermodem has a single buffer shared by all senders with a capacity of 1000 packets. You may assume all packets are of the same length and that packetarrivals are not bursty. A popular application uses three UDP flows each concurrently sharing the

Ethernet switches use a spanning tree. Explain briefly what the aims of the spanning tree protocol are, and how it works to achieve these aims. (ii) Do the switches learn the entire network topology Explain your answer. (iii) Routers using linkstate protocols communicate over the shortest path. Does each pair of switches communicate over the

Using an explanation of the difference between flowcontrol and congestion control, discuss the impact of a stable endtoend latency. (b) Mobile endpoints present a challenge for any connectionbased application on an IP network. Using an example, discuss how this challenge might be resolved without a complete reworking of the endsystem application.

(a) Consider the layer2 switch topology shown below. Switch A Port number 1 Host X 2 3 Host Y Switch B 4 Port number Time Sent Step by Device on Link 0 X XA1 1 C 5 Assuming all switches start with empty switchforwarding tables Host X (with physical address X) sends a packet destined for Host Z. Enumerate in the style below, all packets sent

A user complains that their web application Times Out after successfully connecting to a remote host, yet, an investigation with ping indicates the remote host is alive. Propose a cause of this fault and outline a teststrategy that could be used automatically to detect such a fault. (b) A user would like to infer the path between two hosts they

For IPv4 ISPs, each domestic installation typically gets a 32 network. You have a complicated configuration requiring NAT and multiple IPv4 subnets. (i) Why would an IPv6 based provider allocate four 64 networks for your premises when each 64 represents 264 addresses (ii) A colleague has IPv6 with another provider they only allow one 64 for each

Design a network that meets the provided scenario requirements. Then conduct a cyber security risk assessment for the scenario and recommend security controls. Finally, evaluate social/ethical issues you are likely to meet as the network designer and operator. 2 Scenario The tutorial asked you to consider just the wired network for the security

Addressing Table Complete the addressing table based on the following Plan on starting with a private class B addressing scheme and including the following 800 students, 150 instructors, 100 event media, 50 maintenance, 25 administrators, and 12 HR staff members. Plan for 15 growth. Device Design and implement a network that includes 6 VLANs

It is estimated that by 2024, roughly five billion people will be connected to the Internet, with the biggest increases in societies that are severely censored. Many observers are concerned that the Chinese Internet-sovereignty modelwhere the government controls the flow of information and access to the Internet within its borderswill become much

Domain Name System (DNS) uses client/server architecture to maintain and distribute hostnames and IP addresses on networks ranging from small local area networks to the Internet. (a) Briefly explain the SIX (6) key concepts of DNS. (b) How does the Network File System (NFS) Automounter help to improve the performance and scalability of NFS?

You are a Network Engineer with a computer systems integration company named ABC. You have been tasked with designing a new network implementation for ABC IT Institute that has recently leased a building in Melbourne CBD with the aim of offering IT related courses to its currently enrolled 400 students. The building will house some offices,

You, as a network engineer, have been asked to design a network to a startup company located in Sharjah. The company consists of two floors, the first for employees and the second for the management. The number of devices on the first floor and the second floor are 13 and 8 respectively. Also, there is a servers room on the second floor that

In your trace, you should be able to see the series of ICMP Echo Request (in the case of Windows machine) or the UDP segment (in the case of Unix) sent by your computer and the ICMP TTLexceeded messages returned to your computer by the intermediate routers. In the questions below, well assume you are using a Windows machine the corresponding

Design a neural network with three inputs and one set of hidden nodes which implements the AND function. Chose the appropriate weights to give the desired output results. Question 2 a) Design a neural net with three inputs and three hidden nodes. Choose appropriate weights and construct a table to show the output results of the network as the

This networked Tic Tac Toe game project will test your networking and database management knowledge. The server will maintain a database of users to keep track of their login details and scores in tic tac toe. The server will keep track of each clients state and sync the tic tac toe gameboard across all clients. Up until this point we have worked

The truth table you download describes a Boolean function with four input values X1,X2,X3,X4 and two output values Z1,Z2. Write the Boolean function as Boolean algebra terms using the Sum of Product (SOP) form. First, think about how to deal with the two outputs. Then, describe each single row in terms of Boolean algebra. Finally, combine the

Start your VM and open a terminal window (note you may always open more than one terminal window if desired). For this laboratory exam, we will be using the network topology shown in Figure 1. IMPORTANT download the exam scripts and configuration files by running the following com mand inside the commprotocolslabs folder (i.e. cd

Using Cisco Packet Tracer, as a Network Administrator of Pentecost University College, you are required to restructure the current network infrastructure setup into four (4) operational segments. With each segment assigned to a VLAN ID with the IP Addresses respectfully as indicated below 1. Academic Registry 2. Account Office 3. Faculty Staff 4.

You can review the data here https://www.kaggle.com/c/sliced-s01e05-WXx7h8/data The data consist of: train.csv - the training set: training is understood in a broader content for developing and evaluating your model. This means that you still need to split this data into training and testing subset. test.csv - the test set: this data is for your

A packet-switching network is using a virtual circuit to transmit data from the source to the destination node. In a given instance of data transmission, a message of size 56 octets is to be transmitted from node X to node Y. The virtual circuit designed has 3 intermediate nodes, a, b, and c. Each packet in the network has a 4-octet header that

You are working for a networking solution provider. Your team has asked you to design a network solution for the requirements specified by Initech and test it using Packet Tracer simulation platform before deploying the real network and document the specifications. Initech is a company founded in 2009 which provides IT management software

Follow the instructions below and write an essay that covers the following tasks. R script. R screenshots, your results and explanations should be included for each question in the essay. 1 Load Twitter Spam dataset into R studio, use ggplot function to make density plot of Tweets number (column notweets) to compare spam and nonspam. Clarify how

Modify the given HTML file to produce an animation, resulting in the web page below. Question 4 Perform the following to the embedded stylesheet Add a keyframe called moveFraction that does the following o At 0 sets the font color to yellow and uses transform property to translate to position (355px, 60px) so the fraction is off the left side

Complete the following tasks. Optional tasks should be attempted if you have enough time. Seek your tutors assistance during class or ask any questions on the Q&A Forum. (A partner is needed for these tutorial activities and you may need to run commands in Command Prompt as an Administrator). Review the practice (Quiz) of the Number System to be

Install the following package in the virtual environment (venv/) pip install beautifulsoup4 pip install requests pip install pandas pip install Numpy Stage 2: Crawl and Scrape Schulich wants to have an integrated dataset of all Electrical and Engineering department professors in one place. So as a data engineer, you're asked to gather some

You are given a network address 173.10.10.0/23 . Divide the network into two equal subnets. After that, further divide the first subnet for Admin-Block network and the second subnet for Lecture-Block network based on the above topology. The network requirements are as follows: Admin-Net-1 : 32 hosts Admin-Net-2 : 8 hosts Admin-Net-3 : 95 hosts

AdminNet1 32 hosts ServerPT WebServer AdminNet2 8 hosts ServerPT ExamServer AdminNet3 95 hosts PCPT PC1 296024 AdminS1 296024TT AdminS3 296024TT Admin2 2911 AdminBlock PCPT Maintenance PC 2911 LecturerBlock 296024TT LecturerS2 296024TT LecturerS1 296024TT LecturerS3 LecturerNet1 5 hosts PCPT PC2 LecturerNet2 60 hosts LaptopPT Laptop1 LecturerNet3

In searching for the aircraft, how do these sophisticated pieces of equipment work and how will they assist the Navy in locating the plane? However, if the plane crashed near the Southeast Indian Ridge, this mere fact could make the task of finding the plane very difficult for the two pieces of equipment already mentioned. Can you explain what

A continuous stirred tank reactor (CSTR) is operated as shown in Figure 6.2. The volume of liquid in the tank is V. Feed enters with volumetric flow rate Fi product leaves with volumetric flow rate Fo. The concentration of reactant A in the feed is CA, the concentration of A in the exit stream is CAO. The density of the feed stream is pi the

A digital communication channel has a bandwidth of 4 kHz and a signaltonoise ratio (SNR) of 40 dB. Determine the maximum achievable data rate (channel capacity) for this channel using the ShannonHartley theorem.

Why can Digital data use time division multiplexing? solve this que a very proper manner and also explain it please follow the steps in this queue.

. . Methods (250 words max) o Explain the methods used to conduct the analysis and how they relate to the key questionsobjectives of the needs analysis Choose one or two methods from those covered in the lecture (e.g. Brainstorming, Benchmarking, Root cause analysisIshikawa diagram, User stories, etc.) Findings and Discussion (350 words) This

This assessment assesses students capabilities to identify key cloud characteristics, service models and deployment models. During this assessment, students should go through the four case studies identified below and prepare a short report (250 words each) around the case studies as per the instructions. Case Study 1 ExxonMobil moves to Cloud XTO

A digital communication system is transmitting data at a bit rate of 1 Mbps. The system uses 8-level amplitude shift keying (ASK) modulation and transmits 4 bits per symbol. What is the minimum bandwidth required for this transmission?

You are tasked to design the ER diagram for the database for the 3S clothing store. Data requirements are as given below. Information about 3S employees includes a unique employee ID, and his/her name and position. Each customer of 3S is identified by a customer ID, and has a name. Information about the suppliers of 3S includes a unique name and a

The U.S. government wants to keep track of information about states, governors, cities, and mayors. In addition, it wants to maintain data on the various federal agencies and the annual grants each agency gives to the individual states. Each federal agency is headed by an administrator. Agency names and state names are unique but city names are

State State State State, City State, City State, City Governor ID Number Governor Name State Flower Mayor ID Number Mayor Name City Hall Address Mayor Telephone Mayor Name Mayor Telephone Administrator State, City Mayor ID Number Mayor ID Number Federal Agency State, City, Federal Grant Agency Annual

Use the following cellphone airport data speeds (Mbps) from a particular network Find Q 0.1 0.2 0.8 0.8 19 22 42 43 11.6 11.9 QMbps (Type an integer or a decimal. Do not found) 02 0.8 24 44 12.1 03 09 24 4.9 122 03 09 25 52 13.7 0.4 09 27 56 142 04 1.1 3.3 7.9 144 0.4 1.5 3.3 9.8 14.9 0.6 1.8 3.6 10.3 15.7 070 1.9 3.9 10,6 29.4

Identify any partial dependency, transitive dependency, and full dependency relationship. Create a relational model that makes this data arrangement 2NF. Create a relational model that makes this data arrangement 3N.

Project Project Project Project Employee Employee Department Department Hourly Code Na me Manager Budget No. Name No. Name Rate Mohan D03 Database 21.00 PC010 Reservation Mr. Ajay System 120500 100 PC010 Reservation Mr. Ajay 120500 101 System Vipul Riyaz Pavan Jitendra 500500 104 500500 315 Pooja 710700 137 Rahul 710700 218 Avneesh 710700 109

Analyze the impact of 5G technology on mobile communications.

Explain the concept of data encryption and its importance in cybersecurity.

Determine the maximum length of the cable (in km) for transmitting data at a rate of 500 Mbps in an Ethernet LAN with frames of size 10,000 bits. Assume the signal speed in the cable to be 2,00,000 km/s.

A continuous beam ABCD is shown in Figure QL. 1.1 Calculate the magnitude of the reactions and bending moments 1.2 Draw the shear force and bending moment diagram 30 kNm Sm 4m Figure 1 Continuous Beam. 15 kNm 3m Im 20 AN 15 10

Your plant has 5PLC that must be connected together in a network. Show the system layout for the network using a. Star topology b. Bus topology c. Ring topology

What are the hardware changes required to change ring topology to star topology?

Draw a hybrid network topology in such a way that a star backbone connects the bus and ring topologies to another ring backbone.

1. Explain the major advantages and disadvantages of a bus topology 2. Explain the major advantages and disadvantages of a star topology 3. Describe how a network with a star topology can be manipulated to act as if it uses a ring topology

1) Discussion on Providing redundancy for star topology ( trouble free operation ) 2) Solution for limited wireless options 3) Cost of setting up a star topology for 30 devices in Canada (in detail)

Bus Topology- a bus topology is a network setup where each computer and network device is connected to a single cable. Give a detailed bus topology for computer networking.

The converter shown below is used by a microgrid with (a) DC bipolar single bus topology for voltage balancing (b) DC bipolar single bus topology for PV connection (c) DC bipolar single bus topology for voltage power balancing d) Multiple bus DC topology with battery for battery balancing

2960 24TT Switch0 PCPT PCO Addressing Table PQPT PC1 Device PC1 PC2 PC3 PC4 PC5 296024TT Switch1 Objectives 1. Design a BUS Topology using switches with PCs. 2. Verify the connectivity. 3. Find the subnet masks of the hosts. 2960 24TT Switch2 Interface NIC NIC NIC NIC NIC PCPT PC2 IP Address 192.172.1.2 192.172.1.3 192.172.1.4 192.172.1.5

What is a network topology? What network topologies you would consider and Why? Describe at least one network topology in detail.

Create a full network topology diagram, that could ensure the business continuity of the company. The diagrams need to be your own work and need to be developed using Visio or Lucid chart or an approved graphic package. All diagrams need to be labeled and referenced if they are not your own. The full network topology will be part of the network

INSTRUCTION USE CISCO PACKET TRACER TO CONSTRUCT THE FOLLOWING 5 PC POINT A 3 PC POINT B. SCREENSHOT THE FOLLOWING A. NETWORK TOPOLOGY (INDICATE WHICH NETWORK TOPOLOGY YOU WILL USE IN THIS EXPERIMENT) B. SCREENSHOT THE CONNECTIVITY AND THE PING STATUS CONCLUSION