Computer Network Questions and Answers June 29, 2018

Should an organization's IT security policy include specific configurations for port security? If so, would it apply the same way throughout the entire network or just in certain areas?

Compare and contrast Local Area Networks (LANs), Wide Area Networks (WANs), and Metropolitan Area Networks (MANs). Describe the similarities and differences between the three as well as the limitations of each. Research a minimum of two professional sources that address deployment of these types of networks in business environments. Explain how

Please answer the following.

Activity 1 Relationships I. Research the different types of relationships in data model. Demonstrate or create your own example using a table on each type of relationship.

Mobile Telephones have evolved in a number of ways, from 1G to 4G. Compare them in terms of Standards used and Features. Please answer to the point and precise.

When would you want to create an Azure VM for your company's network? Tell how you might access the VM if you have one created on your subscription. When you create an Azure VM, is it easy to turn off or remove it from your subscription?

Provide the Network ID, the host range, the broadcast ID and the subnet mask for the first 4 subnets of each IP address. 1) 172.16.100.0/27 2) 192.168.200.0/26 3) 209.165.200.0/28 4) 10.10.100.0/25 5) 198.165.100.0/29

InterVLAN Lab Complete the network configuration shown below using Packet Tracer If you are not sure how to get started, there is a helpful video under Materials, Content, Demonstrations, titled InterVLAN that you can view. I would also encourage you to document the networks building them from the IP addresses assigned to the subinterfaces listed

Assume we are using secret key technology. What is wrong with the following source authentication scheme? Alice chooses a per-message secret key K, and puts an encrypted version of K in the header for each recipient, say Bob and Ted. Then she uses K to compute a MAC on the message, say a DES-CBC residue, or by computing a message digest of K

What is the network ID for the followingaddress193.21.18.45/26? Would it be 193.21? If not, please explain.

Ali sent a dataword of 110110 using a system based on a divisor of 1011. Show the generated codeword.

The network topology in Figure Q2 is given the network address 200.20.20.0/24.

200.20.20.024 Net K LAN D 50 hosts WAN 1 RTD WAN 3 K WAN 2 RTC RTA RTB LAN C LAN A 120 hosts 10 hosts LAN B 12 hosts

Let G (N(G), A(G)) be a connected undirected network with N(G) Prove G contains exactly one cycle. A(G).

State the significance of twisting in the RJ45 cable. Give an example.,Describe the component Q of optical fiber cable. Core Q Insulation,Explain how does sky propagation differs from lineofsight propagation,Two communicating devices are using a single bit even parity check for error detection. The transmitter sends the byte 10101010 and, because

Match the statements to the protocols faster more reliable used for sending data TCP UDP both

What is a good subnetting tool or resource online? Give a brief report on your experience with the tool along with any tips you may have picked up along the way.

Creating and Formatting an Advertising Flyer 1. Create an advertising flyer for an information session related to one or more of the topics covered in this course material or topics related to your program. Include the following information: a. The name of the organization for the information session. b. An introduction to the reason for the

lee.focusschoolsoft X TCI Introduction Section X Classes X Classwork for Garcia x Word Choice, Comma x docs.google.comformsde1FAIpQLSdP6enbPPmnCP9HdS8Fu9TAyfvWNMOVZBG10YcTPmupGSGgformResponse marks iReady K Kahoot 3rd 4th 5th Grade R... S Jamestown Million..... On the Trail of Capt... Captionless Image Cool Math Games ... Question 3 1 point 3

1. If Alice and Bob share the same key, say KAB, but they only agree on a hash algorithm to use (no other good algorithms available), how can they achieve confidential conversation with each other That is, how can they do the encryption and decryption for their conversation 2. What is the playback attack What is the common practice in protocol

A zoologist needs to record the reverberation area sounds transmitted by a bat. The species of bat to be recorded transmits just sounds in the recurrence range 40 kHz to 80 kHz and the mouthpiece utilized incorporates a simple channel with that passband. (a) Explain for every one of the accompanying inspecting procedures how it tends to be

QUESTION 1 The Open System Interconnection architecture is a conceptual model that characterizes and standardizes the computer network communication functions of a telecommunication or computer system without regards to its underlying internal structure technology. Elaborate the following SEVEN (7) layers of Open System Interconnection and how

(a) Define the terms local error and order for an ODE formula. What is the order of each of the methods (1) and (2)? [2 marks] (b) Giving answers to 2 significant decimal digits of accuracy, compute the solution of the ODE for xn = 0, 0.1, 0.2, . . . 1.0 for each method. Tabulate your answers. The exact solutions to 2 significant digits are: 1.0,

4.3 Induction and Recursion 1. Suppose f(0) 6 and f(n 1) f(n) 4 for all n 0. (a) What is f(1) (b) What is f(2) (c) What is f(3) (d) What is f(4) (e) Give a closed (nonrecursive) formula for f(n). (f) Restate the recursive part of the formula so that you have f(n) stuff (as opposed to f(n1) stuff).

A concept sets the context for requirements specifications, and (typically) includes items as listed: 1) A vision statement of the basic idea for your term project; what is the concept for the application and what will it do? 2) What is the market need for the application / system / mobile app? a. What problem are you solving? 3) Who is the

Prolog for Artificial Intelligence A basic D-type flip-flop is addressed by the Prolog predicate dff whose definition is as per the following: dff(D, 0, Q, Q). dff(D, 1, Q, D). The primary contention is the contribution to the flip-flop, the second is the clock with 0 addressing a falling edge and 1 addressing a rising edge. The third and fourth

BOTNET Redirects Web Browsers of an online business to a single URL at the same time Computer Program that infects many files on the same computer Software that sets up a Super User Account to steal information, while hiding its presence SelfReplicating program that can send copies of itself to other nodes on a Network When hackers trigger

This question carries 16 of the content marks for this assignment. Your answer to this parts (b) and (c) of this question should be approximately 300 words. Part (a) is excluded from the word count. This question relates to a risk analysis of your proposed project. a.In Worksheet 2.20 (Categorising, prioritising and managing project risk), you

Early Start Duration Early Fish Stack Late F Note The project starts on Day 0 activities A and H start from 0 1 Draw the Gantt chart based on the information that we can extract from the diagram above. 2 Perform a Forward and Backward Pass of the diagram above 3 identify the critical path(s) 4 If we remove activity J, and link activity I to K.

Consider a wireless network of linear topology where traffic goes only in one direction. Every node has at most 2 incident links. There is no other interference or communication link. Assume time is synchronized among all nodes. Every node has a single half-duplex radio (which cannot both transmit and receive simultaneously). Write a TDMA-based

After you compiled and executed the program, what was the result? How many times was the output displayed in the output window? How would you modify the program to have the program display the output only once?

Find the number of collisions after which, in CSMA/CD protocol, the NIC can make a binary exponential delay of at most 1536 bit times.

a)Write a C# program to create List instead of array for the cars array below and add all the car items to the list. (3 marks) cars={"Volvo","BMW","Ford","Mazda"}; b)Write HTML code for following web form (4 marks)

Consider a mobile device that powers on and attaches to an LTE visited network A and assume that indirect routing to the mobile device from its home network H is being used. Subsequently, while roaming, the device moves out of range of visited network A and moves into range of an LTE visited network B. You will design a handover process from a

a) Discuss two advantages of validating web forms? (2 marks) b) List and Describe at least two data annotations to validate web forms in MVC asp.net applications? (2 marks) c)Discuss how CSS rules improve the design of assignment three web application? List two examples from the assignment.( 4marks)

If you change the permission of the index.html to being private (not accessible to everyone), what is the resulting page after hitting or refreshing the Endpoint link?

Download the Nexpose Vulnerability Scanner and use it to Scan the wireless network router at your home. You can download the Nexpose vulnerability Scanner from https://www.rapid7.com/products/nexpose/download/ Upload the report from Nexpose based on the scan results. Discuss details of at least on vulnerability in your wireless network including

What happens to us when employment becomes the exception, not the rule?

How can IT equipment packaging be recycled? Ensure you include specific examples.

Task 1 a detailed description of the client's requirements. Your description should list the key issues and requirements you have identified. This may include details of the organisation's departments, workstations, servers, security requirements, routing protocol, addressing scheme outline, device types, WAN. All this information can be found

Discuss how to learn and become an expert in Apache Webserver. Support your discussion with at least two references

Use "R programming (R studio)" to respond to the inquiry. Use have 5 factors with 480 perceptions. To get to the information utilize the accompanying R order: frozen yogurt

table ORDER Chapter 7 Telecommunications 2. Figure 71 depicts a simple computer network. Describe what each component works to make a communication with a remote entity in the internet. (5 points) PC Switch Server NIC NOS Switch NIC PC Figure 71 A computer network Router Other Networks Internet a. Why do we need Network Interface Card (NIC) Card

Problem 1 (10 points) ARP Consider the network setting in the figure below. Node A and node B are both in a LAN behind the NAT. 143.89.160.19226 Server Router II 12 13 220.32.19.34 143.89.160.12825 192.168.0.2 000A45B53453 NAT 143.89.160.200 192.168.0.3 0477ED7800A0 192.168.0.1 000A45B53455 B a) (5pts) Assume the ARP table of node A is initially

How would you tell a user that what they are doing on their mobile device is risky?

I need help briefly to understand what server virtualization is and the role hyper visor plays on it.

Consider the problem of implementing timers. Selective Repeat does not resend all packets on timeout, so it must timeout packets individually. However, in an implementation we are likely to only have one hardware timer. How might we solve this problem? What would happen if we re-start the timer every time a packet is sent? What would happen if we

Deploying and configuring an RODC Task 3: Configure the domain-wide password replication policy 1. Switch to LON-DC1 . From Server Manager , start Active Directory Administrative Center . 2. Make the IT group, found in the IT OU, a member of the Denied RODC Password Replication Group What powershell command will accomplish the above?

Can you design a network with appropriate network securityetwork management and WAN connectivity for the below situation? Also, can you format this into a Word document and PowerPoint presentation? Please include references for my guidance. Organization of 80 computer users in three locations (metropolitan areas in different states). Ohio -- two

Server Emall Interactive ACDMS Management Response Level 3 Pop Router Firewall Media Server Network Diagram Telecommunications Network Architecture IP Phone Softphone Softphone Existing MegaPath Network Backbone (Primary IP Network) Backup Media Server T1 or D 63 T1 or D33 Internet (Alternate IP Network) Central Office 2 Softphone (Remote) Central

What are some essential takeaways from this list of topics, and how can they be helpful to a management team? MAN's, LAN's & WAN's Network Design & Modeling Encryption and Network Security Compression (Lossless vs. Lossy) Project Management & Program Manager

Can you list and describe three crucial network management capabilities the IT department should employ to maintain network availability for its authorized users? Also, can you list and describe three crucial security management capabilities the IT department should employ to maintain security for its authorized users? Please include references

What is SSID cloaking in wifi communications?

4. InterDomain RoutingBGP (14 marks) a. (6 marks) (Refer to the Figure below) Consider the network shown below. Here a customer (represented by AS100) is connected to two providers via two separate routers SYD and MEL. Such a customer is said to be multihomed, with redundancy and geographical restrictions being the key reasons to implement

You need to apply RSA algorithm for given prime numbers p=7 and q=11. Calculate private and public key. Encrypt and decrypt message m=99 to prove that the private and public numbers you calculated are accurate.

Need more information why these are the "limitations". need some examples to justify it.

The network team is considering deploying containers on the network. In what scenario(s) would containers work, and what are the benefits of deploying containers?

The first IP address of an ISP network is 10.10.10.0. If you have to distribute 60 IP addresses to different routers running OSPF in the same network, the optimal wildcard mask needed to give access to all the routers is:

An Access Control List is preventing UDP traffic to go through a router interface in both ways. What is the command to test if this router can route in both directions between a pair of given hosts belonging to two different subnetworks ?

How do I document at least 6 current standards or protocols? What are standards and telecommunications protocols?

Briefly explain what undefined behaviour is in the C standard. Under what circumstance(s) would calling the following C function result in undefined behaviour? int32_t divide(int32_t a, int32_t b) { return a / b; } [4 marks] 2 CST.2015.2.2 4 Programming in C and C++ (a.ii) Consider unspecified behaviour in C. (i) Define what unspecified behaviour

Suggest two logical formulae that might appear in Evil Robot's knowledge base in order to describe the initial state for the above problem ------MOREOVER DETAILS --------- Specification and Verification II Describe the syntax and semantics of Computation Tree Logic (CTL). [4 marks] Jot down CTL formulae expressing the following properties: (a) if

Jot java program to find if a particular element is present in a multi-dimensional array. Here is the related facts that might help to solve the problem - *************** Consider the function zarg defined below: fun zarg f ([], e) = e | zarg f (x::xs, e) = f(x, zarg f (xs,e)); Show that with the help of this function, it is possible to an

Problem Maurice manages the file servers with Jen, and he says that one of the servers keeps running out of disk space. He needs to keep an eye on the files that are saved to the servers to make sure that no one is duplicating large files or saving any abnormal files. The reason this is a problem today is that one of the primary servers is out of

Research tells us that 'people' are the greatest threats to information security and cybersecurity. Explain why you think this is true or not.

The four IP Addresses provided are the beginning of segmenting a network and this assignment is to break up each IP address into 4 segments. Instructions: THIS ASSIGNMENT CALLS FOR 4 SUBNETS OF EACH IP ADDRESS VS 1 SUBNET OF EACH IP ADDRESS. Refer to the zoom recording located under zoom module for assistance. Determine the first 4 subnets and

The Problem Definition was E-Commerce Attack: Distributed Denial-of-Service (DDoS) Research the solution(s) to address the recent threat to the security of an e-business operation that you. This is the continuation of the Problem Definition phase listed above. The design should "harden" the overall security of the e-business operation. Make the

explain to me what subnet number would be for the following example? 192.168.10.104 = IPv4 Address 255.255.255.224 = Subnet Mask Subnet number = ? Explain your answer.

You want to estimate the average hourly output of a machine to within 1.5, with 90 degree of confidence. Based on historical data, you have reason to believe that the standard deviation of the machines hourly output is 5.2. How large a sample do you need a) State the critical value 1 mark b) State the sample size 1 mark A

Compare Business Continuity (BC) to Disaster Recovery (DR). List four items that are found in a BCP. Describe the following terms: Tabletop Exercise Structured Walk-through Disaster Simulation 4. What is the difference between automation and orchestration?

TOGAF Impacts Analyze the impact TOGAF components have on the effectiveness of business processes. TOGAF Strategies Plan strategies for overcoming potential challenges in employing TOGAF components in an information system to meet business goals. Evaluation of Business Goals Evaluate how the TOGAF model helps align business goals with an IT

The border gateway protocol (BGP) is widely used to determine route information between large networking domains, i.e., inter-autonomous system (inter-AS). Explain the difference between interior BGP and exterior BGP and why are these two types needed?

The routing protocol software on a single router in a network is compromised/faulty and generates incorrect (random) results. What is the overall scale and impact on overall network performance if the network is using link state routing? Distance vector routing?

A IPv4 CIDR block has 64 addresses (including addresses where the host id bits are all 0's and all 1's). What is the mask in binary for this block?

An NMS is used to track performance data indicators, including bandwidth utilization, packet loss, latency, availability, and uptime of routers, switches, and other network components. Explain the terms used in context with the network monitoring system. Fill up the terms with values you can collect by connecting your machine with a network. You

Denormalize the following three tables, into one table called tbl_location: tbl_state contains (state_id,state_name) tbl_county contains (conty_id,county_name) tbl_city contains (city_id,city_name). Discuss the steps you took to create the new tbl_location table and if the new table design increased or decreased the performance of the query.

If a link in the network with 20 nodes and 50 links fails, then how do the routing table sizes change in both cases?

A router uses an IP packet size of 512 bytes and has a link speed of 100 Mbs (100 x 10 6 ). What is the efficiency for the standard IP packet header size? What is the link goodput?

How server virtualization will help me as a business person increase my revenue and reduce my capital expenditure. Explain briefly.

From the Alexa top 1 million sites http://s3.amazonaws.com/alexa-static/top-1m.csv.zip . Use Python code to check if each domain supports HSTS and CT. Show obtained results and attach logs.

Question 9 View Extended TCP information on the client machine in Command Prompt utilizing the correct command and Ensure connectivity between all virtual machines utilising the correct command in Command Prompt 4 pts

An IT staff member is trying to debug a problem ticket where a user is experiencing connectivity issues. Namely, the user can ping hosts inside the enterprise local area network (LAN) but not hosts outside. What are some potential causes and remedies (list at least two)?

(Constraint Optimization) Given the production function Q 2 K 12 L12 Where, Q is the total output. K refers capital and L refers Labour. 1 unit of capital costs 4 and 1 unit of labour costs 3. Find out the level of capital (K) and labour (L) which minimise the total cost if firm produces 160

1. Research and identify a Linux distribution of your choice. Describe the purpose of this distribution (i.e. is it a desktop operating system, an embedded OS for a specific device, an OS to provide some network service or functionality, etc.). Does the vendor provide an HCL? If so, what are some of the hardware requirements for the distro?

. The company is also planning to establish five offices in Brisbane, Adelaide, Melbourne, Canberra, and Darwin. . According to the specifications provided, the most user resource requirements will be met by servers located in the same office as the users who need to access them. . The main communication requirements between offices relate to

Perform initial switch configuration on network, subnetworks then save, and verify them according to installation plan specifications?

(a) TFTP is a simple protocol that is built into Cisco devices. (b) What are some methods available to use TFTP to protect the enterprise network security? Please give a detailed explanation.

From network topology perspective, discuss and briefly explain the similarity and the difference between institutional networks and data centre networks.

Two concepts that were covered in Session 3 were E-finance and E-banking . Explain clearly the difference between these two concepts. Do not define what each of them are, but explain their difference clearly.

Microblogging is found in Web 2.0. Explain clearly and in detail why microblogging could only exist in, and be a product of, Web 2.0, and not exist in or be a product of Web 1.0.

What is technical security for a data communication network?

The following is from "Policy Document - Software Policy", g3ctoolkit.net.s3-website-us-west-2.amazonaws.com/ia/SecPol/wmspDownloads/Software_Policy.doc: The above content relates to one of the prohibitions of the Computer Ethics Institute Guidelines. Which one of these prohibitions is connected to the above content? Explain clearly and in detail

Type route /? and review the help and options. When might this info be useful?

Outline a 2,3, page playbook to address a Trojans attack Complete the following in your playbook: Provide details of the malware. Identify the exploited vulnerability and its attack vector. Analyze the vulnerability to determine 2 risks of this malware. Outline step-by-step instructions on how to resolve the malware attack.

What are "meta" tags for? How can you provide information for Google using Meta tags on your page?

Which network service is responsible for automatically configuring TCP/IP on devices on your network ?

(a) What are the key features of a TCP protocol? (b) Briefly mention any three. (c) What are the key features of a UDP protocol? (d) Briefly mention any three. (e) Mention any two differences between TCP and UDP protocols?

(a) I need help from someone with experience in 802.11 wireless standards. (b) I need help in you own words explaining the following assignment please. (c) Research the 802.11 Wireless Standards, select 3 implementations (802.11e, 802.11i, 802.11n, 802.11ac, and so on), and describe each of them in 1-2 paragraphs. (d)Considering all of the 802.11

Bijans pipelined processor features separate instruction and data caches. The instruction cache (Icache) has a single level and the data cache (Dcache) has two levels, as shown in the figure below. The processor achieves an average CPI of 1.2 not accounting for memory stalls. L1 ICache has a hit ratio of 99. L1DCache has a hit ratio of 85. L2

A client required an IP address from DHCP server, please list the steps of the DHCP process?

How do I use voice commands to control my computer with the project of making a video?

What is the best file format for digital images, such as photos and scans?

How do I view vector and bitmap images in a VR headset?

Linux - choose how you will manage your software install packages? Analyse some advantages of using a package manager to manage software?

(a) A local printer (within the network) is turned on but is not responding from other computers. (b) What tool will allow you to know if it is connected to the network? PING IFCONFIG IPCNONFIG NSLOOKUP

1- Which one of the three IPv6 address types listed below replaces the broadcasting address in IPv4 and explain how it works? -Unicast - Multicast - Anycast

What happens when we send a ping to a website during capturing data on Wireshark program.