Computer Network Questions and Answers August 18, 2022

In a Local Area Network with a NAT router, a host H1 with a private address of 124.142.18.10 sends a packet to a server device with a public destination address of 34.25.121.213. The destination port address and the source port address on the sent segment are 80 and 3054, respectively. The public address of the NAT router is 48.192.68.124, and the

Given the IP address and subnet mask 221.93.45.18227, answer the following questions. 3 marks a. What is the subnet address (network address for this subnet) b. What is the broadcast address for this subnet c. What is the binary subnet ID of the subnet Given the IP address and subnet mask 198.72.248.11628, answer the following questions 3 marks a.

3. Consider the following situation using NAT (Network Address Translation), where the router uses one public IP address, 138.76.29.7, for several hosts with private IP addresses. The NAT table already has the information as shown due to previous communications. NAT translation table LAN side addr WAN side addr 138.76.29.7, 5001 10.0.0.1, 3345

Which command is used to check all the NAT translations? show nat show ip route show ip nat statistics show ip nat translations

Configure a static map to tell the router to translate between the private inside server address 192.168.1.20 and the public address 209.165.200.225. Your answer b) Issue the ip nat inside and ip nat outside commands to the interfaces. Gateway (config) interface Gateway (configif) ip nat Gateway (configif) interface, Gateway (configif) ip nat

Having access to an effective data warehouse dramatically increases your ability to make smarter decisions, faster. Without a data warehouse, if you want to do crossdomain analysis, youre stuck dedicating tremendous amounts of time and resources to combining and analyzing data across platforms. With a data warehouse, your entire company has a

Write the proper assembly code to implement the expression A 2(BC)D using MARIE ISA, and write their proper addresses, given that the following directive is given ORG 10A You should also include the decimal values of the USED variables as follows A3, B6, C 5, D7. You are not allowed to use any additional variable other than the given. An example

Topological Sort 2 3 7 6 5 6 5 9 2 a) List a topological order for the following graphs above. When you have a choice of path, choose the lower alphanumeric vertex. Show detailed working and explanation. b) Provide pseudo code to provide a topological sort for the graphs given (this may not generalise). Show detailed working and explanation. 6

To understand layered communications and protocols To feel and know the networking equipment (repeater, hub, bridge, switch, router, crimper, UTP, Fiber cable, connectors, patch panel, cable managers, racks, CAT6 straight and crossover wiring standards, LAN meter/tester, RJ-45) Network Hardware: Crimper/clamper, RJ-45 jack male/female, LAN/Cable

5) Using the IP address and subnet mask shown write out the host address Host Address IP Address and Subnet Mask 192.149.24.191 255.255.255.0 117.15.2.51 255.0.0.0 27.125.200.151 255.0.0.0 223.169.23.20 255.255.0.0 48.21.25.54 255.255.0.0 199.120.150.35 255.255.255.0 10.10.10.10 255.0.0.0 191.55.165.135 255.255.255.0 10.10.48.80 255.255.255.0

We wish to ovenroast a small full chicken for dinner, but we dont know what the cooking time is for a 1.0 kg bird (and I guess that the internet is down or something) We know that the raw chickens properties are density 1150 kg m, heat capacity 3600 J kg K, and thermal conductivity 0.8 W m K. The chicken is initially at uniform temperature of 10C

Use the graph below to answer the following questions What type of graph is represented How many nodes does the graph have How many edges does the graph have i. li. iii. 3 7 32 1 3 1 N 2,Use the graph below to answer the following questions What type of graph is represented How many nodes does the graph have How many edges does the graph have i.

Find all the topological orders of the following graph. Intermediate steps are not required. B A G F E

IP address, subnet mask and getaway following the requirement below

Network A200 PCs PC1 22. Dynamic Routing using EIGRP Eth 11 Eth 12 HQ Network G Eth 11 Branch1 Eth 10 Network F Eth 10 Network D Eth 10 Branch3 Eth 10 Network C75 PCs Eth 12 Eth 11 Network E Eth 11 PC3 Branch2 Eth 12 PC2 Network B 100 PCs

Create the Adjacency List for the following graph below. 1 3 2

Given the graph below, answer the following questions. 2 A) Represent this graph as an adjacency list. 0 B) Represent this graph as an adjacency matrix. 3 C) What is the ordering of nodes If we run Graph DFS starting on node 1 Assume we visit the smallest neighbour first. D) Write your Java code(submit a java file) to implement the DFS for graph

An organization is granted a block of addresses 192.168.10.0/24 . The organization has three offices and needs to divide the addresses into three sub-blocks (subnets): Subnet 0 (CE Engineering Lab) with 60 hosts + 2 (Network & broadcast)= 62 IP64 =2 6 Subnet 1 (IT Lab) with 56 hosts + 2 (Network & broadcast)= 58 IP64 =2 6 Subnet 2 (TE Engineering

3. For the following graph, give an adjacencylist graph representation. 0 1 5 2 3 7 6 4 Using the representation, illustrate the operation of the depthfirst search algorithm with vertex 0 as the source. Label or mark each vertex and edge appropriately.,5. a) Give the adjacency list representation of the following directed graph. b) Trace the

Using the graph below, a. Draw an adjacency list and matrix. 5 MARKS EACH b. Perform a depth first search using Vertex C as your source draw the resulting depth first search tree 10,2. a. Describe the concept of a Binary heap and the heap order property. 10 marks b. Explain the use of the binary heap as an effective implementation for a priority

Given the address 23.56.7.91 and the default class A mask, find the beginning address (network address). Given the address 132.6.17.85 and the default class B mask, find the beginning address (network address).

Find some information about private IP addresses. You can use RFC 1918 or search using the search engine www.google.com. Write a paragraph about private IP addresses (what they are, when they are used and the range of IP addresses). Explain the difference between private and public addresses and the purpose of NAT (Network Address Translation).

Construct AVL trees by inserting the elements successively, starting with the empty tree. a) 1, 2, 3, 4, 5, 6 b) 6, 5, 4, 3, 2, 1 c) 3, 6, 5, 1, 2, 4 (Note Observe the final trees and you will find that although all of them have the same data, the tree are not necessarily the same.)

It is possible to share a single public address on a Local Area Network using a form of Network Address Translation. Explain how this is achieved by clearly stating the type of addresses used in the LAN how the NAT device performs address mappings, any problems that may arise and action taken by the NAT device to resolve the problem. Below is part

Network address translation, or NAT, is the mapping of IP addresses from one realm to another. What are one-to-one address binding (static NAT), one-to-many address binding (dynamic NAT), and address and port bindings (network address port translation)? How does NAT help to address the issues of address space exhaustion and enhance security at

What is the destination IP address in the hop from PC1 to R1,192.168.10.100 R1 Pro PC1 192.168.10.024 show ip nat translations Inside global 209.165.201.22 R1 .226 209.165.201.22427 Inside local 192.168.10.100 R2 Outside local 209.165.202.1 209.165.202.1 Server Svr1 Outside global 209.165.202.1 See figures above, where PC1 formulates a request to

Write down the 32bit binary sequence equivalent of the IP address 155.38.24.64. (You need 8 bits for each decimal number.) Your answer

Refer to the exhibit. Based on IP configuration shown, what would be the result of Host A and Host B attempting to communicate outside the network segment 2m On which device and IP address in the above exhibit, would NAT (Network Address Translator) be configured by the network administrator 2m State the role that NAT plays on any network 2m,IP

There are three ways to achieve NAT Static, Dynamic and PAT (Port Address Translation). Given the information from R1 in the figure which way is implemented in R1,192.168.10.10 R1 Pro tcp PC1 192.168.10.024 R1 show ip nat translations Inside global 209.165.200.22651839 226 209.165.200.22427 R2 209.165.201.1 Inside local Outside local

The following picture shows a NAT (Network Address Translation) table which indicates some current traffic of the network. What can you tell about this network?

Index Protocol Local IP 1 TCP 2 TCP 3 TCP 4 TCP 5 TCP 6 TCP 7 TCP 8 TCP 9 TCP 10 TCP 11 TCP 12 TCP 13 TCP 14 TCP 00 Pseudo Peer IP Port Peer Port 60.49.63.157 55001 84.74.65.229 8080 60.49.63.157 55002 84.74.65.229 8080 60.49.63.157 55003 84.74.65.229 8080 60.49.63.157 55006 84.74.65.229 8080 221.130.193.25 8080 84.74.65.229 8080 218.208.229.174

We now review kfold crossvalidation. in 2023 (a) What is the purpose of Kfold cross validation (b) Explain how kfold crossvalidation is implemented. (c) What are the advantages and disadvantages of i. The validation set approach cross validation relative to ii. LOOCV 1kc21 (10 merks) 1269es of kfold croc112021kc21 07303112021kc2

Write a function, called union a list a list a list, that when called with two lists, denoting sets, returns their union. In other words, union(s1,s2) s1 U s2 where s1 and s2 are lists. Recall that sets may not contain duplicate elements. (Hence s1 U s2 may not contain duplicate elements).

ID 001 002 003 004 005 006 007 008 The table below shows a number of attributes of mobile robots with faults. i) TempSensor High High Low High Low Low High Low VibSensor Low Low High High High High Low Low Tracks N Y Y Y N Y N Y Engine Electric Petrol Electric Petrol Petrol Petrol Electric Petrol Fault 1 1 NMNMM 2 3 2 3 1 3 In order to predict

You are appointed as a Network Manager in UMP network management project. As a Project Manager you have to deal with many parties that involved in the network management project installation, operation until commissioning. You have to determine FIVE (5) parties or players and proposed their functions and responsibilities to ensure network

A double block brake is shown in Figure. The brake drum rotates in a clockwise direction and the actuating force is 500 N. The coefficient of friction between the blocks and the drum is 0.35. Calculate braking torque. 350 500 N 350 350 100 ,100,100, ADA 100 100 450 500

Write the codes and draw the flow chart for these problem. 1.Please only use if flow control, write a program to ask the user to input his/her letter grade (A,B,C,D,F), and If input A, show Excellent!; If input B, show Well Done!; If input C, show Keep Working Hard and You Should Do Better Next Time!; If input D and F, show Please Dont Give Up!;

Make a python program that asks the number of items or uses a sentinel loop to end the loop when the user enters 1. It should look up the price for the item inside the loop and add the price for that item into the total. It should show the total at the end. Here are the items sold by your store. (100 po Description Pencil Item Number 1 2 3 4 3 1 1

A program contains the following function definition def cube (num) return num num num 1. Write a statement that passes the value 4 to this function and assigns its return value to the variable named result. 2. Write a statement that displays the value of the variable result. 3. Explain what the value of the variable result will be.

10. A program contains the following function definition def cube (num) return num 3 Write a statement that calls the cube function and passes it the value 4 and assigns the returned value from the function to the variable named value.

Traditionally the role of the individual in an analytics team has been determined by experience and knowledge in their respective area of expertise. Storytelling provides a way to embrace the problem that needs to be solved in an easy-to-understand manner. How would you go about leading the development and delivery of the story to include

In early 2000, Northwest Airlines suffered a network outage at its' worldwide IT operations center, in Eagan MN. This data center houses all airline flight operations and flight safety systems. The network failure disrupted all IT operations in the data center, ultimately causing the grounding of all NWA aircraft worldwide for over 24 hours.

Design a IT infrastructure for a business, organization, or agency. Each requirements should contain a description of how the technology will be implemented and used. Requirements are as follow: Must contain a minimum of two types of networks (WAN, LAN, MAN, etc.) Must use at least 2 forms of cabling (Coax, Twisted Pair, etc.) Must use at least 1

Assume we want to divide the network 192.168 10.024 into 8 subnets The binary format of this address is 11000000 1010000000001010 000 00000 We need to borrow 3 bits after the 24th bit of the mask (the inbold bits). . Start a binary counter from 000 to 111 for the borrowed bits Subnets addresses in order are Subnett 192. 168 10 Subnet2 192 168 10

Number of needed usable hosts 45 Network Address 198.125.50.0 Address class Default subnet mask Custom subnet mask Total number of subnets Total number of host addresses. Number of usable addresses Number of bits borrowed What is the 2nd subnet range What is the subnet number for the 2nd subnet What is the subnet broadcast address for the 4th

You are a router, and one of your outgoing links has an MTU of 1000 bytes (ignore layer 2 headers). You receive the following packets that all need to be sent out over this link: Fill in the table below with the header fields of the packets that you send out (you may not need all of the rows). The first packet has been completed for you.

ID 00x1930 1 0x92ad 2 0x944f 3 Oxaa22 0x78a1 0x3ac8 45 Flags Offset Total Length 1000 3000 I I DF MF DF 0 0 0 185 370 0 1000 1001 1500 1500

The table below gives the observations. By using the hierarchical clustering method answer the followings. Obsl (2,5) Obs2 (6,7) Obs3 (9,2) Obs4 Obs5 Obs6 (2,2) (2,2) (4,6) a. Draw the dendogram b. If the dendogram is cut from 3.7, how many clusters are obtained c. If the dendogram is cut from 5, how many clusters are obtained d. Find the clusters

The table below gives the observations. observation 1 2 23 d(p, q) 3 4 456 X1 1 1 0 5 6 4 x2 4 3 where p (P, P2,..., Pn) and q (91, 92,..., In) are vectors. 4 120 0 421345 X3 In the regular hierarchical clustering method, we used the Euclidean distance. However, in this question, use Canberra distance instead of Euclidean distance. 6 The

Consider the following email message. Please identify IP address of the host that sent this email. The email messages passes through multiple SMTP server. Please identify them. from, to and subject of the email and then determine whether this email is a spam email. Please justify your answer. (Hint check the SPF information) Received from CY4PR

Discuss any FIVE (5) types of social media that exist today. Identify TWO (2) pros and TWO (2) cons for each of them. Cybercrimes can be divided into two major types Type I and Type II. a) Identify TWO (2) cybercrimes for each type. b) Discuss all the FOUR (4) cybercrimes identified in (a).

a)Draw the frequency spectrum of an analog signal after sampling when the sampling frequency is 1.70 MHz and the source signal has a frequency range (i) 100 500 kHz, (ii) 100 700 kHz, and (iii) 100 900 kHz. (For sketching purposes, you may assume that the source signal strength is uniform over the signal bandwidth.) If we use a lowpass filter

Refer to the exhibit RouterB is configured properly. The Ethernet interface Fa00 of RouterA is configured with the use of the commands that are shown in the exibit. However, a ping from the Fa00 interface of RouterA to the Fa00 interface of RouterB is unsuccessful. What action should be taken on RouterA to solve this problem RouterA Fa00 Fa00

Refer to the exhibit The diagram represents the process of sending email between clients. Which list correctly identifies the applicationsprocesses or protocols used at each numbered stageplace of the diagram Sending email client 1 email server email transport direction. Receiving email client email transport direction

Fix input alphabet a,b. For a basic TM M, let Lhalt,M be the set of input strings w such that M halts on w. 3. Give an implementationlevel description of a NTM that recognises the set (M) of basic TMs such that Lhalt,M . Briefly explain your answer.

Why has the hosts method for managing DNS largely been abandoned? Where does it still exist? Q2)Explain the difference between authorization and authentication in the context of file access control. Q3)Explain a transactional deadlock and race condition. What method is used to address these challenges? Q4) What are the four key performance

You need enough address space for at least 2000 hosts. Suppose you have enough class C addresses and you start your address space at 144.228.243.0 What will be the CIDR formatted address entered in the routing table for your network

Write a for or while loop that displays a table with the 12 Chinese zodiac signs by using the images provided as column headers and with the years displayed below the appropriate column heading. Begin the table with the year 1912 and end with the current year. You can use the modulus operator to determine the number of columns in each table's row.

Rat 1912 1924 1936 1948 1960 1972 1984 1996 2008 Ox 1913 1925 1937 1949 1961 1973 1985 1997 2009 Tiger Rabbit 1914 1926 1938 1950 1962 1974 1986 1998 1915 1927 1939 1951 1963 1975 1987 1999 Dragon Snake 1916 1928 1940 1952 1964 1976 1988 2000 1917 1929 1941 1953 1965 1977 1989 2001 Dog Horse Goat Monkey Rooster 1918 1930 1942 1954 1966 1978 1990

Suppose a router has built up the routing table shown in Table below The router can deliver packets directly over interfaces 0 and 1, or it can forward packets to routers R2, R3, or R4. Describe what the router does with a packet addressed to each of the following destinations (d) 192.4.153.17 (e) 192.4.153.90 SubnetNumber 128.96.39.0

A continuous random variable X is said to have an exponential distribution, written Exp(X), if its probability density function f is such that f(x) xeAz if z 20 0 if z 0 where 0 is a real number. 1. Compute the mean of X 2. Compute the variance of X 3. Compute the cumulative distribution function F of X. Use this to show that for any real

1. Given the position vectors P 202 239 and Q 22 9. Draw the two vectors and then find (a) the distance between P and Q (b) the unit vector pointing from P to Q (c) the dot product P. Q (d) the cross product P x Q (e) the angle between P and Q

Given an IPv4 address 90.120.60.0/22, design and apply an IP addressing scheme for the topology shown in Figure 1. You must subnet to provide enough address space to use. Each LAN requires enough IP addresses to support at least 100 hosts. The point-to-point WAN links between two routers only require at least 2 host addresses. Complete the table

Subnet Subnet Address Network Prefix 1 2 3 4 5 II Figure 1 Topology for Question 1 Broadcast Address Address Range R3 Subnet Mask of Wasted Host Addresses

Suppose a router has built up the routing table shown in table below. The router can deliver packets directly over interfaces 0 and 1, or it can forward packets to routers R2, R3, or R4. Describe what the router does with a packet addressed to each of the following destinations: (a) 128.96.39.10 (b) 128.96.40.12 (c)

SubnetNumber 128.96.39.0 128.96.39.128 128.96.40.0 192.4.153.0 (default) SubnetMask 255.255.255.128 255.255.255.128 255.255.255.128 255.255.255.192 NextHop Interface 0 Interface 1 R2 R3 R4

Two stations working with the Ethernet 10 Mbp half duplex protocol are separated by the link shown in the figure. Calculate the allowable length of the second fragment so that the transmitting system can detect the collision. Give the result in meters, rounding to the nearest whole number (13 Puan) 1500 m v200 000 kms Yantnz girin delay 4 bytes m

Tracing route to uwaterloo.ca 129.97.208.23 1 1 ms 1 ms 1 ms 192.168.36.1 2 1 ms 1 ms 1 ms 83.96.76.49 3 12 ms 13 ms 59 ms 62.215.1.117 6 ms 2 ms 6 ms 2 ms 7 ms msfcoreso10.fasttelco.net 62.215.0.137 2 ms 62.215.0.139 4 5 6 448 ms 7 210 ms 8 9 224 ms 228 ms 10 222 ms 215 ms 215 ms wms.uwaterloo.ca 129.97.208.23 448 ms 446 ms 195.229.0.123 210 ms

a) Write a C program to Implement a system of three processes which read and write numbers to a file. Each of the three processes P1, P2, and P3 must obtain an integer from the file (these instructions must be executed 200 times). The file only holds one integer at any given time. Given a file F, containing a single integer N, each process must

(a) Explain why interrupts are not appropriate for implementing synchronization primitives in multiprocessor systems (10 marks) (b) Race conditions are possible in many computer systems. Consider a banking system with two methods deposit(amount) and withdraw( amount). These two methods are passed the amount that is to be deposited withdrawn from a

Continuous random variable X has the following PDF 1x3 fx(x) 4 otherwise Define the random variable Y by Y a) Find EX and VarX. b) Find h(EX) and Eh(X). c) Find EY and VarY. h(X) X

Consider the following Btree instance that has order d2 (this means that the maximum number of entries per node is 4). 7 Root 14 16 13 17 2022 2 3 5 24 19 30 24 27 29 33 34 38 39 1) Show the state of the Btree after you have inserted the data entries with keys 10, 50, 28, 25 2) Show the state of the Btree after you delete the following keys on

Suppose we wish to create a B tree on a computer with a block size of 2048 bytes and pointers of 8 bytes. The records we wish to store in the tree are 200 bytes each, including keys of 12 bytes. (i) 3 marks What is the maximum number of children for an index node that is not the root What is the minimum number of children for an index node that is

A Btree on an attribute X can be alternatively constructed in a batched manner 1. Sequentially store the relation by sorting the records in a nondescending order of X 2. Build the firstlevel index (the smallest key of each block in the index can be safely removed), then the secondlevel index, ..., until the top level has only one block. Consider

Local Area Networks (LANs) are categorized by the physical signal transmission medium or the logical manner in which data travels through the network between devices, independent of the physical connection. Figure 2 shows the network connection in LAN. Answer the following questions.

Router Network Segment S Hub 0000 To the Internet S Network Segment S Figure 2 LAN (a) Do hosts A and C share the same network part of their IP addresses Explain. www.Server (5 marks).

One of the oneway functions used in public key cryptography is the discrete logarithm. Computing r g mod p from g, e, and p is easy. But given only r, g and p, recovering e is hard. Suppose p 1013, g 7 and r 101. What is the smallest positive integer e such that r g mod p

Build a network with 3 switches to connect 6 computers in Record the IP address of each computer in Table 1. IP Address Host 1 2 3 4 5 6 Table 1 Use the ping command to verify that all the 6 computers can communicate with each other. Put a check mark in Table 2 after you verify the connectivity. 1 2 Host 1 2 3 4 5 6 3 4 5 6 Table 2 One of the lab

The traceroute command can be used to find the route. Explore the documentation for basic usage of traceroute. Use traceroute to find the route from your machine to www.google.com How many hops did it take Use traceroute to find the route to cpu0.it.usyd.edu.au How many hops did it take Consider how we may be able to simulate the behaviour of

design an entity relationship diagram that describes the content of a typical online sales database each transaction is made by a registered customer each transaction has a transaction id and the date of purchase under each transaction there is a list of items purchased and the quantity of each in that transaction. each unique type of item appears

Consider the DFA defined by its transition graph as below. q1 93 8 100 O U O 94 Given a DFA, we define the notion of a regular expression R) for the language L(4) consisting of all strings that go from state q to state q without visiting a state numbered larger than k along the way (visiting the first and last state is not considered). For the DFA

What are the motivations that led to proposing the QUIC (Quick UDP Internet Connections) protocol? Q3.2)Discuss briefly the message syntax and semantic of QUIC protocol. Q3.3)Explain the main differences between QUIC and TCP, focus on congestion control, reliable communication, and communication overhead. Q3.4)Use finite-state machines (FSM) to

Perform a Traceroute between your computerlaptop and a destination host named as traceroute.at at three different times (morning, afternoon, and evening) of any day. a. Show screenshots of the output of Traceroute at each of the three different times and mention the time of the day. b. Find the average and standard deviation of the roundtrip

Consider the DFA defined by its transition graph as below. q1 93 8 100 O U O 94 Given a DFA, we define the notion of a regular expression R) for the language L(4) consisting of all strings that go from state q to state q without visiting a state numbered larger than k along the way (visiting the first and last state is not considered). For the DFA

Review the output of traceroute below and answer the following questions. The traceroute was done from a laptop with IP address 10.0.0.192 located near Springfield, MA. Tracing route to gaia.cs.umass.edu 128.119.245.12 over a maximum of 30 hops 1 2 3 4 5 6 7 9 10 11 12 45 16 5 15 5 21 505 . 25 58 24 508 23 104 505 105 24 3 56 129 15 18 23 5 23

-Configure the topology with different network addresses. -Configure the routing commands on the routers. Part B: Verification - Verify the connection using the ping command - Use the traceroute command at PC1 on PC3. Part C: VPN - Configure a VPN channel between Router 0 and Router 3 - Show the output of the traceroute at PC1 on PC3

PC P Fa0 ov2 Fa0356024 I ov Company A PCPT PC1 Swit Fa04 Fa01 Gig01 2901 Gig00 0 ServerPT DHCP Website A Gig00 2901 Router1 Gig01 Gig01 VPN Connection 2911 Rc Gig00 Gigo1 2911 R Gig00 Fa01 Company B ServerPT DHCP and Website B Fa04 Fa022960241 Swi Fa03 Fa0 PCPT PC2 PCPT PC3

Consider the following BnB enumeration tree 22 3 920 23 SE Ps (8)910 (3) 21 63 P6 (6) D P() 950 PA 23 28 B P2) (PT) (7)915 IFS 1264 935 Ps) () C IFS Answer the following based on the above tree, using the strategies discussed in the class. Note IFS stands for Integer Feasible Solution. (d) Is it a maximization or a minimization problem

Assume there are three routers R1, R2 and R3 between a source S and a destination D, and that the middle router (R2) decrements the TTL, but incorrectly forwards the IP datagram when the incoming TTL was 1. S R1 R2 R3 D Describe what happens when you are running traceroute from S to D. What is the path that traceroute would learn

Perform a traceroute on an IP address in Australia. Provide a screenshot of this traceroute, and explain the following a. What does a single row explain be specific (i.e. what are the values displayed on a row) b. Why does request timed out appear Mention two reasons c. How is a traceroute executed I.e. what is the underlying command sent at each

This question asks you to perform traceroute to the host mcb.berkeley.edu. For all parts below, describe the commands you use to obtain your answers and provide the output of the commands. (a) What is the distance (in number of hops) between your host and mcb.berkeley.edu Did you reach mcb.berkeley.edu (if not, count the distance between your host

Now consider the simple network below, with sender SRC and receiver RCV. There are two routers, R1 and R2. SRC------- R1------ R2------ RCV For simplicity assume that the queueing delay and processing delay is zero at both R1 and R2. The distance between SRC and R1 is d0 meters, the distance between R1 and R2 is d1 meters , and the distance

Explain briefly how traceroute works. Suppose that our networking class consisted of 10,000 students who live in different parts of the world (an online class! :). If each one provided you with their traceroute data to facebook.com, explain a meaningful way to integrate this information together to draw an Internet map. Which part of this map

Draw an ER diagram for a hospital schema. Use the following requirements. Hospital has several departments. Each doctor works for a department. Patients get appointments for departments. An appointment can be associated with at most one department.

Explain the problemsolving model and the seven steps to determining and implementing a solution. How can brainstorming provide the opportunity for creative problem solving Why is it helpful for organizations to train their employees in possible approaches to problem solving How can the use of creativity in problem solving more effectively address

1. Write a program that calculates the factorial of a given integer using a loop. Prompt the user for input and display the result. 2. Create a program that calculates the sum of the digits of a given integer. For example, the sum of digits of 12345 is 1 2 3 4 5 15. 3. Generate a multiplication table for a number entered by the user. Print the

Solve each recurrence below using the Master Method and write your final answer using Onotation. Make sure that you show al your work including the corresponding case and the values of e or k used. If it is not possible to solve a recurrence using the Master Method, explain why by showing that the form is inapplicable or by showing that all 3

Consider a graph G (V, E) with n vertives. For each of the three cases provided below, answer the following questions (1) What would be the graphs adjacency matrix representation look like What is the asymptotic space cost of storing G using this represenation, using notation in terms of n only (2) What would be the graphs adjacency lists

2. (a) Define ensemble method. Give one example from the class of an ensemble model that gives improved performance over a base model. (b) You are asked to apply the boosting algorithm on a classification problem shown in Fig. 1 using decision stump(s). (Hint Decision stump classifier chooses a constant value c and classifies all points where x c

In a given undirected graph G (V, E) with positive edge weights, it is possible for there to be multiple shortest paths from the starting vertex s to any other vertex t. Give an O((IV E)logVI) algorithm that populates the Boolean array usp, where usp t is true if and only if the shortest path from s to t is unique. Assume usp s true.

Consider the imaginary rectangular box shown in Fig. P2.27. A wave traveling in the medium has electric and magnetic fields E x 100e20y cos(2 x 10t40y) (Vm), H 20.64e20y cos(27 x 10t40y36.85) (Am). The box has dimensions a 1 cm, b 2 cm, and c0.5 cm. Determine (a) the net timeaverage power entering the box, (b) the timeaverage power exiting the

write an assembly program that uses a loop to find the sum of the first 10 natural numbers. Draw a flowchart of your program.

Consider the following differential equation dy(t) dy(t) di dt 4.25 y(t) 0, y(0) 2, y(0) 1 (a) Show that the solution is given by y(t) e05 (sin 2t 2 cos 2t).

Critically research and investigate how QoS has an impact on a 'typical' domestic users' network utilization experience: a) Consider how many providers use QoS for resource and service management b) Explore how QoS is being used as an unofficial censorship and copyright control process c) Discuss the challenges involved with deploying QoS for

The capacitance (C) of a reversebiased abrupt Si pn junction has been measured as a function of the reverse bias voltage V, as listed in Table 6.7. The parasitic capacitance has been subtracted from the measurements so that C represents the depletion region capacitance. The pn junction crosssectional area is 500 m x 500 m. By plot ting 1C versus

You have been hired by a small company that has set up a VPN. The VPN is used by two business partners with which the company needs to communicate on a regular basis. You set up a simple mesh configuration, going from office to office to do the initial configuration, which includes SA table listings for all devices in the VPN. The VPN operates

The blood pressures, p mmHg, and the age t years of 7 hospital patients are shown in the table below Patient t A B 42 D E F G 74 48 35 56 26 60 98 130 120 88 182 80 135 a. Find the product correlation for these data. b. Interpret the correlation coefficient. c. Draw the scatter diagram of blood pressure against age for the 7 patients. d. Find

and at least one conclusion you could draw from the graph. Are you 1. Describe the graph shown convinced of this conclusion 2. What is the primary mistake people make when interpreting correlation coefficients,Spurious Correlations 140 drownings 100 drownings Number of people who drowned by falling into a pool correlates wtih 1999 1999 2000 2000

Compute the blocking for 5 lines that are carrying voice calls at the rate of 25 minutes/hour and 20 minutes/hour. Compare with the blocking at 30minutes/hour. Also compute the value of q i for 20 minutes/hour of load. 2.4 A more ambitious problem is the following. Assume that the population of Anagon is 20, Bregen is 15, and Charmes is 25.