Computer Engineering Questions and Answers May 21, 2021

Write a function divide for the rational type which puts the result in the simplest form.

RAM holds a lot of information that can be useful to a forensic investigator during a forensic investigation. What kind of items can be recovered from RAM and how can you explain those items are important to an investigation when collecting digital evidence from a computer system?

Explain parallel computing approaches and techniques in MATLAB and Python : - using Multicore Processors GPU - using Manycore Processors GPU

In widely used in the field of computer science, discuss the constituent component of the ANN and what is the role of weights in ANN.Artificial neural network has been widely used in the field of computer science, discuss the constituent component of the ANN and what is the role of weights in ANN. Artificial neural network has been widely used in

Find the output y(t) at 0.01 and 0.02 sec where y(0)0, x(t) is a step input using Rungekutta of 4th order method. 1 X(s) Y(s) s 4

8086 system with 8253, unknown clk is fed to each clki0, clki1, clki2, with N1 0, NO EEEEH, N2 CCCCH. After 4 seconds NO reads 3D ABCDH. (a) calculate the unknown frequency (b) calculate NO, N1, N2 reading after 2 seconds.

Write a assembly program subroutine which compares two strings, display the count of same characters and exits where first mismatch occur.(processor 8088) Let String_1: db ABC193zxy&*^,0 String_2: db ABC123zxy&*^,0 Display => 4

A system uses one 8237A to complete the data transfer from memory to memory . The first address of the source data block is 2000H, the first address in the target data block is 4000H and the data block length is 2K bytes. Write the initialization program of 8237A.

Suppose the Bangladesh Bridge Authority has proposed to setup Padma Bridge tollbox at the end of DhakaMawa highway. To store and manage daily tolls and transactions they want to install a software system. A part of that software will be implemented by you. The partial requirement is kind of following. The tollbox will have 3 counters for 3

You wish to access the web page www.games.com, so you write the URL in your web browser. The Web page associated with the link contains multiple objects in total. Let 4928 ms to denote the total RTT time to get all the objects and 2849 ms to denote the total file transmission time (without RTT) for all the objects Assuming 37 ms transmission time

Given, theres a LAN delay of 6ms and Access delay of 7ms. Also given that, the hit rate of Proxy Server is 69. Calculate the total delay in ms (exact value only). Assume the internet delay is 185ms and speeds are 15mbps and 100mbps for access and LAN links

2 sinx cosx dx using Trapezoidal Q6 Write a Fortran program to find the value of integral o (6 marks) rule with n 10.

By using Emulator 8080 software package, write a program that run the traffic light to open St3 and close St1 St2 St4

Convert the following ARM assembly code into machine language. Show the value of each bit at the conversion and write the instructions in hexadecimal format. SBCS R10, R8, R6 LDRB R12, R6, R4 CMP R10, R12 BHS LINK2 LSR R2, R12, 8 LINK2

How negative/positive numbers were represented in IAS machine?

Which register is used by default in most ALU operations?....... Which registers are used in Division operations?....... What does IF hold?....... Is IAS a synchronous or asynchronous machine? ..

How many bits are used to represent data in IAS machine? ---- How many bits are used to represent an Instruction in IAS machine?....... How many bits CPU can read from RAM in one bus cycle? How many Instructions CPU can read in one bus cycle? .. How many data CPU can read in one bus cycle? ..

A steadystate heat balance for a rod can be repre sented as 0.157 0 dx Solve by finite difference for a 10meter rod with h 2.0 given T(0)240 and T(10)150

Based on ISA table, give and explain the flowchart for operation (load, store, arithmetic) for ST(PC-relative), LEA (imm) and ADD (imm) instruction set.

Using S-DES, convert the string of bits obtained from your roll no (89) ( e.g. roll no 12 can be represented as 0001 0010) using the key 1111 1111 by hand to encrypted bits. Show intermediate results after each function (IP, FK, SW, FK, IP-1). Then decode the first 4 bits of the plaintext string to a letter and the second 4 bits to another letter

Q1. is the given table in first normal form In case of YesNo justify your answer. And normalize the given table up to 3rd normal form. Student Info Student ID Name Email Course No. GradePoints NN204, SI204, 100111 John Doe doeusna.edu 2.3,3 IT221 92244 Matt Smith smithusna.edu SM223, EE301 4,4 113221 Melinda Black black usna.edu SI204 3 NN204,

Q4. Draw tables for the give ER diagram. And discuss the weak and strong entity from the given diagram. ssn (Ename) (rating Did (dname) (address Emp Manages Dept Belongs Works to Childs name gender age

Q5. Separate DDL and DML Sql commands from the given queries. I. CREATE TABLE EMPLOYEE(Name VARCHAR2(20), Email VARCHAR2(100), DOB DATE) II. DROP TABLE EMPLOYEE III. ALTER TABLE STUDETAILS ADD (ADDRESS VARCHAR2(20)) IV. INSERT INTO javatpoint (Author, Subject) VALUES (Sonoo, DBMS) V. UPDATE students SET User Name Sonoo WHERE StudentId 3 VI.

Q6. Write the relational algebra expression for the following queries I. Find all tuples from player relation for which country is Pakistan II. Select all the tuples for which runs are greater than or equal to 15000. III. List all the countries in Player relation.

1) Find the inverse Laplace transform. s 25 s(s 3s 20) 2) Find polynomial G6s(s1)(ss2s1)

Q4. design a perceptron network to output a 1 when either of these two vectors are input to the network 10 and to output a 1 when either of the following vectors are input to the network (00) i. Find and sketch a decision boundary for a network that will solve this problem. ii. Find weights and biases that will produce the decision boundary you

Calculate the following table:

(content of data memory given in hex . ) 00 01 02 03 04 05 06 07 08 09 OA OB OD OE OF Address Ox050 01 FC 68 48 70 Al 12 A7 92 OA 01 FD DC 4E 36 Ox250 88 14 42 F9 DB B6 D4 85 CE 7E 4E 35 C5 9E 51 F5 Ox450 1B 1F C3 DB 18 C2 95 4D 48 2F 85 3B 46 02 40 CD Table 1 PIC18 instruction sequence for Question 3(d) STATUS Instruction WREG ov DC MOVLB Ox2

Digital reading from the 10bit ADC of your Atmega328p MCU is Digital reading (Your Roll No x 3) 125 If the reference voltage of the ADC (Vref) is given by the following formula Vref ((Your Roll No 4) 1) x 1.1 V What analog voltage does this digital reading correspond to Show the calculations.

How to implement the following Cisco Packet Tracer network? Just that instead of being network range from 160.0.0.0 - 169.0.0.0, it should be 170.0.0.0 - 179.0.0.0 Thanks!

167.11.1 PCPT PC19 PC20 PC21 3560240S Multilayer Switchs L65.1.L1 ga 1 201 Router s031 2030 154. 1.1.1 s031 2911 Router3 160. 1.11 gan 29 162.1.1.1 tautro 2011 291 Multyer wtch4 161.128.1.1 PC2 163.1.1.1 PCPT Routerl 168.1.11 PC23 3560APS G02 165. 1.1.1 Pe Mutieyer witch1 PC3 170.1.1.1 356024PS Multilayer Switcho LEL.1.11 PCPT 24PS Mujelaver

If system using 14 levels of quantization. a. Calculate the bit rate of the digitized signal. b. Calculate the SNRdB for this signal. c. Calculate the PCM bandwidth of the signal if it uses 2B1Q technique.

6 Find the hazards that may occur when the following commands in a MIPS processor with 5 steps (IF, ID, EX, MEM, WB) for Pipeline and a separate ALU for each of the Add Sub, Mul, Div operations. (Consider that all instructions are1 cycle and data forwarding is exist.) Inst1 int add (R1, R1, R2) Inst2 intmult (R1, R3, R4) Inst3 int add (R2, R3,

Find the y(x) S (x 2 x2 x 1) dx where that 2 s xs 2 fx fx

QI show how an asynchronous counter can be implemented having modulus fifteen with a stright binary sequence from 0000 to 1110.(draw circuit only)

Q1) For the system shown in Fig.1 a) Find the output Yk for k0,1,2,3,4,5 for a unit impulse at Xk 8k 1 for k 0 8k 0 for k 0 3D b) Find the transfer function YzXz Fig.1

Construct a 2-bit logic unit that is actually a part of an ALU. This logic unit will have 4 micro-operations which are AND, OR, XOR, and NOT operations. Logic micro-operations are very useful for manipulating individual bits or a portion of a word stored in a register. They can be used to change bit values, delete a group of bits or insert a new

A1 A0 30 ANDI ANIXO ORI ORO XORI XORO NOT NOT Al AO 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 o o 1. o o Co O 1. 1, 1. 1, 1, 1. 1. 1. 1, 1, 1, 1. 1. 1. 1, 1, o oo o Ooo oo o oo 01 1. 1.

Nitrogen and oxygen gases are held in a 1.00 m container at 300K. Partial pressures are PN80 kPa and Por 21 kPa. Collision diameters are dx2 3.74 and do 3.57 A. Calculate the average number of collisions per unit volume and per unit time by one molecule of oxygen and one molecule of nitrogen at 300K. The mean speed of gas molecules at 300K is 625

Q1Write the correct code to great the following fig 15 10 5 10 2 3 4 7 8 9 10 5.

Consider the secondorder system that we want to control i 4r2 ta 2u With z (0) 1, 12(0) 0, where z is the position of the system and u is the control variable, and the cost function is given by J(u) A(x (3) 4) B(r2(3)) lu(t)dt By introducing an appropriate Hamiltonian, find the control and state trajectory that minimises the cost function

a) A web page consisting of 13 objects in total will take ____ ms to load in a non persistent connection. Given, RTT = 9ms; Object Transmission Time = 2*RTT). (Answer in ms) b) What would be the answer if the above calculation was done for a persistent connection? c) Does the above calculation include all the delays that we need to consider? (Give

17 For the given systems, find the uncontrollable one(s) () i,(1) x,(1) () ,(1) 2 1 0 2 0x,(1)0 0 0 Tx,(1) 1 4 u, (t) (a) 3x, (1) o 1 23 3 1 0x,(1) 0 3 0x (1) 21 0 2x,() ox,() 0x, (1) 01 x, (1) u,(t) (b) s0 L4(1) 10 0 1 0 0 u,(() Lu,(1) (c) () (d) all of them

Extend the 32-bit ALU design to support slt and branch instructions. # just design is required. with some detail

Shown above is a suffix tree of all the suffixes of a dna sequence. How many times the substring TT occur in the sequence What is the second nucleotide in the sequence How many times the substring AA occur in the sequence How many times the substring TTT occur in the sequence A AAA AAA A AAA O AAA O

Q3. 12M For the (7,4) code with the generator matrix given by G. Find (A) Probability of undetected codeword error over the BSC with crossover 1 0 0 1 0 01 1 010 0 0 0 1 101 100 0100 probability p0.01. (B) Word and bit error probabilitics for this code. (C) Prove that this code is Hamming code. G

Above shows a set of 4 potential exons in the context of gene prediction problem. Complete the Scoring matrix shown below using graph dynamic programming. S1 S2 S3 S4 S5 S6 S7 S8 How many optimal chains are there 3 4 3 Vertex Index 1 2 3 4 6 7 Scoring S S1 S, S3 S. S5 S6 S, S8

Draw the stick diagram based on the equation given above?

Boolean Expression Y BC ABC ABC D De Morgans Theorem Y ABC ABC ABC D Y (ABC ABC) (ABC D) (ABC) (ABC) (ABC)(D) ( BC)( BC)(ABC)(D) (A B C)( B C)(ABC)(D (A B C)(A B C)(A B C D)

Develop Shanon code for the following set of massages, and find the code efficiency P(X) P(X1)0.15 , P(X2)0.25 , P(X3)0.07 , P(X4)0.08 , P(X5)D0.17, P(X6)0.28 O Lc2.7 Bitsmessage ,H(X)2.419 Bits Message, Code efficiency 85.59 C6 00, C2 010, C510 , C1 101 ,C4 1101, C3 1110 O Lc2.8 Bits Message ,H(X)2.7 Bits Message, Code efficacy96.4 C6 00, c2 101

Upload the Block diagram and scope output (response) for the following D.E.? y(n)=x(n-2)+3x(n-1)+2y(n-1)+y(n-2)

A number of advances in information technology, such as surveillance cameras and satellite-based that can pinpoint a persons physical location provide exciting new data gathering capabilities. However, these advancement can also diminish individual privacy and complicate the issue of how much information should be captured about peoples private

A number of advances in information technology, such as surveillance cameras and satellite-based that can pinpoint a persons physical location provide exciting new data gathering capabilities. However, these advancement can also diminish individual privacy and complicate the issue of how much information should be captured about peoples private

A server can often tell the proxy server to store a data for a certain period of time. Given, you request the following website at Fri, 13 Mar 2020 172612 GMT. Using the information in the following image, explain the flow of the request step by step between the Client, Proxy Server and Origin Server. Request URI httpwww.example.com HTTP1.1 200 OK

Bob and Charles both visit a website at Fri, 14 Mar 2020 173612 GMT. Both of them have a connection speed of 5Mbps. What could be a possible reason for Charles webpage to load faster than Bobs Select all possible answers. Bob requested using HTTPS while Charles used HTTP. Bobs browser has cookie enabled but Charless web browser does not. Bob uses

How does a server differentiate (in terms of DNS) between a request being sent for the web or email?

Using the information in the following image, explain the flow of the request step by step between the Client, Proxy Server, and Origin Server.

Request URI httpwww.example.com HTTP1.1 200 OK ContentEncoding gzip Age 521648 CacheControl maxage604800 ContentType texthtml charsetUTF8 Date Fri, 06 Mar 2020 173611 GMT Etag 3147526947gzip Expires Fri, 13 Mar 2020 173611 GMT LastModified Thu, 17 Oct 2019 0718 26 GMT Server ECS (dcb7EC9) Vary AcceptEncoding XCache HIT ContentLength 648

Suppose the output of a show ip route is as Figure 1 below. Explain each entry shown by each arrow. R 172.16.4.028 (1202 via 209.165.200.226, 000012, Serial000

Why do we simplify Boolean expressions

(b) Based on the Verilog coding in Figure Q4(b), draw the equivalent logic circuit. module question4 (out, i0,il,s) output out input i0, il input s wire sbar, yl, y2 not n1 (sbar,s) and al(yl,i0,sbar) and a2(y2,i1,s) or ol (out.yl.y2) endmodule Figure Q4(b) 3 marks

Figure Q2(a) is the state diagram for a digital system. Construct a Finite State Machine circuit using T flipflops for the digital system. Assume X is an input for each state. s1 (0 so 1 S2 1 S3 0 Figure Q2(a) x

(b) Figure Q1(b) shows the counter which is designed by using JK flipflop. Based on the counter circuitry given, produce the truth table with the Kmap operation, and determine type of counter. CLK A B K . Figure Q1(b) 13 marks

1 2. a. Write a program using IAS computer assembly language opcodes to evaluate the following formula: X={(Y-273)*5}/9 +160 [4] b. Write the machine code equivalent of IAS computer assembly program of question no. 12a. [3.5]

Find the resolution of IEEE 7541985 code around the number 1.13105 and state it as a decimal value with at least 2 significant figures (e.g., you may write 0.00083 for the value 0.0008276). Correct Answer 0.007813 5 Response Feedback We need to find the exponent E ensuring that the ratio between the desired number and 2E should be in 1, 2). The

Calculate the physical address and describe the addressing mode and the contents of the address, data, control bus lines and AL when the instruction MOV AL, SI 123CH is executed. Assume that register DS 2000H, register SI 1A31H 3D and the memory address contain is (EDH)

( apple A search (priority of ea... apple A search (priority of each state is path cost heuristic cost) (B 1. from state a to goal g 00

Consider a Instruction pipeline having 5 phases with duration 10, 30, 60, 80 and 80 ns. Given latch delay is 5 ns. Calculate the following parameters ) Pipeline cycle time i) Nonpipeline execution time (i) Speed up ratio (iv) Pipeline time for 2000 tasks () Sequential time for 2000 tasks (v) Throughput Also, draw the block diagram showing the

Assume AL42h CL05. Write the content of AL after RCL AL, CL showing the calculation steps. Assume a STC instruction before this RCL instruction. (4 marks) (Note Solve the question in paper, scan and upload along with the other Part B and C answers) 1 A B I

Python3 Jupyter if you can.

In import numpy as np import matplotlib.pyplot as plt 1 Plot direction field of y (12xy)x2 and analyze. In matplotlib notebook In 2 replot direction field with solution In matplotlib notebook In 3 Replot direction field with second solution In matplotlib notebook In ,In import numpy as np import matplotlib.pyplot as plt 1 Plot

Can the Formalized and rigorous processes provide each member of the software development team with control, predictability, and stability and an understanding of how each task adds to the complexity of the systems general design? Please provide good suggestions.

There are many types of waves, such as electromagnetic waves and radio waves. The equation used to calculate wave velocity is shown below where v, is the wave velocity (in ms), is the wavelength (in meter) and T is the time (in second). Table Q2(a) shows the wavelength of four different radio waves. The researcher decides to use an equal time

Create a NSArray that stores the following five birth dates 27 September, 1988 14 October, 1996 23 July, 1991 17 October, 1995 25 December, 1991 Calculate the age for a person born on each of these dates and print the ages from youngest to oldest.

In an experiment, the independent variable is the percentage of hydrocarbons and the dependent variable is the purity of oxygen produced in a chemical distillation process that are present in the main condenser of the distillation unit. The simple linear regression and correlation analysis is perfomed in a sample of 9 observations. Results are as

Write a VHDL code to implement the following function f ( B) (A O B) Using Structural style.

Differentiate between Coaxial Cable and Fiber Optics and explain types of Fiber Optics with the help of diagram?

What are Data Transmission Modes? Explain its types through Transmission Media? Explain with steps?

What is meant by Network Topology? Named Different Types of Topologies and explain with Diagram?

What is domain name? Write the top-level domains and purpose of different domain. Explain with steps?

WRITE A CODE PROGRAM TO CREATE A 2 DIMENTIONAL ARRAY A(5X3) INTO LISTBOX ON ROW BY ROW.PRINT THE SUM OF ALL ARRAY ELEMENTS AND MAXIMUM VALUE. In C programming

Select one (1) of the following topics for your primary discussion posting: Identify any challenges you have in setting up a linear programming problem in Excel and solving it with Solver. Explain exactly what the challenges are and why they are challenging. Identify resources that can help you with that. Explain what the shadow price means in a

Design, develop, and implement a mini-online, six (6) week course(Online Math Course), using the Course Management System (CMS), Blackboard.

(a) What are the names of following functionalities: X 2 and X 2 in MS Word? (b) What is the difference e between Count and Counta functions in MS Excel?

What is the difference between Picture and Clip Art? Write the applications of clip Art?

Write a paper on Multimedia Website Elements.

CREATE A POWERPOINT PRESENTATION OF YOUR WEBSITE' HOMEPAGE DESIGN.

What is the difference between table & table of content in MS-Word? Write a step to create and manage the table of content? Also describe how to insert a caption of table and figure what is the purpose of caption?

A large fast-food chain unveiled a new touch screen register for its franchises. Each cashier was assigned a user ID and password combination to log in to the register. The system allowed the incorrect password to be entered four times before the register would lock and require a manager to unlock it with a key card. To prevent unauthorized

What is meant by X 2 in ms word?

Write a paper on governing the cloud. The following are the items to discuss in the paper: List and describe five ways you think the cloud will change the future of TV. List and describe five potential uses for intelligent fabric. List and describe five ways the cloud will influence the mobile application market or vice versa. Discuss the

Solve on Practical Sheet then fill the Table below) Covert the following Numbers imto the Given Base (Radix). DEC BIN (011010101001)2 326 (967) 8 (4FB)16

Create a friend class that will calculate the price for above mentioned plant types and display all details . fruit prices { 200 per kg . vegetables price { 250 per kg In C++

5 GB is same like, where B denotes byte Select one . 500 MB . 5000 O.c. 5000 kB O d. 50000 MB

Implement NOR Function in Artificial Neural Model where z1, z2 are inputs of f(activation Function) such that w1=0, w2=1 and = any value >1 but <=2

Early user interfaces were designed with little or no consideration for the end-user. This was largely due to technical and hardware limitations. The poor interface design required a specific skill set for users and limited the mass appeal of computers. Modern interfaces are much more user-friendly. Theo Mandel has written about the five golden

Building a user interface that meets the needs of a diverse population can be incredibly difficult. Research the best practices for developing a universally usable interface, as well as some of the federal legislation that applies (such as Section 508). Write a paper in which you: Assess at least five best practices for developing a universally

What are the three kinds of indentations in MS Word? Why we indent the documents?

Let PTH G, s, t, m G is a directed graph without any 3D cycle and there is a path in G from s to t with length at least m . Is PTH in P, or NP Prove your claim.

Translate this code into MIPS64 assembly language. Addresses: a@800, b@808, c@816 long int a, b, double c c=(double) (a-b) * 5.4;

Q1 It contains Visual Basic programs on several windows and each window has certain functions, what are these windows and what is the most important window (4 marks)

If the upload speed of a server is 82 Kbps and the upload speeds of Client A, B, C and D are 9 Mbps, 10 Mbps, 12 Mbps and 15 Mbps respectively. Assuming all the four clients have the file completely downloaded, how long would it take to download a file of 83 GB 14 times in a P2P connection for Client E if its connection speed is 10 Gbps Round your

in metric space of the d(x,y)ex ey if A(0,1)U(1,2)U3U(4,00)n4) Bint(A), Ccl(int(A)),Dint(cl(int(A), Ecl(A),Fint(cl(A)),Gcl(int(cl(A) any of the set compact

Write a single RIMScompatible C language statement that copies As upper nibble to Bs lower nibble, and sets Bs upper nibble to As lower nibble 2

Interpret the following double ( ( e10) (float ) )6 void a) ( float, double ()()) int ( ( a()) )) void (a) (int, char ((char , char )) float ( ( array2)())() (CLO 2,3)

a. Write a PHP script for storing username and password in cookies for 15 minutes. b. Write a PHP code to concatenate two strings character by character. e.g : IMRAN + KHAN = IKMHRAANN