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Computer Engineering Questions and Answers May 17, 2020

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Explain the architecture and operation of a relational database management system (RDBMS). Discuss the role of SQL in accessing and manipulating data stored in a relational database, and explain the differences between SQL and NoSQL databases. Evaluate the strengths and weaknesses of RDBMS in comparison to other types of database management

You are employed at a new agency and the Principa knowledge to recommend trust accounting software 2 trust accounting software packages. In the space below provide a report on 2 trust ac report: - The role and function of trust accounting softm - The name and details of each software package - The features of each that make it ideal for tru - Web

For the given flow net, the hydraulic conductivity of soil k 0.002cmsec. (Square flow element) 10 m Impermeable layer Determine a. The total seepage loss per unit length in msecm b. The pore pressure at point A 10 m Scale

Write the sequence of control steps required for the single bus organization in each of the following instructions a) Add the immediate number NUM to register R1. b) Add the contents of memorylocation NUM to register R1. c) Add the contents of the memorylocation whose address is at memorylocation NUM to register R1. Assume that each instruction

For the single bus organization, write the complete control sequence for the instruction Move (R1), R1

Represent the decimal values 5, 2, 14, 10, 26, 19, 51 and 43 as signed 7bit numbers in the following binary formats (a) signandmagnitude (b) 1scomplement (c) 2scomplement

Convert the following pairs of decimal numbers to 5bit 2scomplement numbers, then add them. State whether or not overflow occurs in each case. a) 5 and 10 b) 7 and 13 d) 5 and 7 c) 14 and 11 e) 3 and 8 (b) Repeat Problem 1.7 for the subtract operation, where the second number of each pair is to be subtracted from the first number. State whether or

Perform following operations on the 6bit signed numbers using 2s complement representation system. Also indicate whether overflow has occurred. 010110 101011 111111 001001 100101 000111 011001 110111 010101 010000 111001 101011 010110 111110 100001 011111100101 011101 111111 000111 011010 000111111000 100010

Perform signed multiplication of following 2s complement numbers using Booths algorithm. (b) A110011 and B101100 (d) A001111 and B001111 (f) A01110 and B11000 (a) A010111 and B110110 (c) A110101 and B011011 (e) A10100 and B10101

Given A10101 and B00100, perform AB using restoring division algorithm.

Represent 1259.12510 in single precision and double precision formats

What is Inheritance?

Briefly about logic gates and also explain conversion of SOP from standard to canonical form?

Write a program for converting binary to decimal numbers.

A string is a pangram if it contains all letters of the English alphabet, ascii['a'-'z']. Given a list of strings, determine if each one is a pangram or not. Return "1" if true and "0" if false. Example pangram = ['pack my box with five dozen liquor jugs', 'this is not a pangram'] the string 'pack my box with five dozen liquor jugs' is a pangram ,

Program execution time would be minimum if the programs are written in (A) Assembly language (B) High level language (C) Machine language (D) None of the above

The time taken for the read/write head to move to the correct track on the magnetic disk is called (A) Approach time (B) Seek time (C) Epoch delay (D) Latency delay

A bridge is designed to support a maximum weight of 10,000 pounds. The weight of the bridge is 3,000 pounds. If a truck weighing 7,500 pounds crosses the bridge, what is the maximum weight of passengers that can also safely cross the bridge?

A computer network consists of five nodes, labeled A, B, C, D, and E. Each node can communicate directly with its neighbors, as shown in the diagram below: A / B---C | | D---E Assuming that each node can process one message at a time and that messages can be sent in both directions, what is the maximum number of messages that can be exchanged

Suppose you have an instruction pipeline with five stages: instruction fetch (IF), instruction decode (ID), execution (EX), memory access (MEM), and write back (WB). Each stage has a latency of 2 clock cycles, and the pipeline is fully pipelined with no data hazards. The pipeline is initially empty, and the processor has just started executing a

Using at least one union, define a type or types in the C language for conveniently storing such expressions.

The substitution operation for an expression replaces all occurrences of one variable with another variable. Given that sub-expression trees are commonly shared over numerous expressions, explain a problem that could arise in the substitution operation. Explain the details of a solution to the problem by giving code or otherwise.

Construct the XOR operator using only AND, OR and NOT gates. Construct the XOR operator using only NAND gates. Hint x XOR y ((x y)(xy)) Assume you have the following truth tables for functions F(x,y,z) and F(x,y,z) X 0 OC XXN 0 0 0 1 1 1 1 y 0 TTOOT 0 0 1 0 1 0 1 1 0 NOHOHOHOH 1 0 1 1 0 1 0 F F 1 0 0 HHH OOOOo 1 FullAdder 0 0 0 1 0 CHLOONA 1 1 0

How a flip flop works in a asynchronous mode give the application of preset and clear.

What is race around condition in JK flip flop How it can be removed

How will you convert a JR flip flop into SR flip flop

What do you mean by magnitude comparators implement a 2 bit magnitude comarators using 4 to 16 decoder.

How a demultiplexer can be converted into decoder

What is diagram. carry look ahead adder Explain using a neat diagram.

What do you mean by shift register How it is different from counter

Find y(z) for the sampled data closed loop system.

find output c(k) for input r(t) step input.

Obtain state equation and draw the block diagram y(s)U(s) 1(s2)(s3).

Obtain the transfer function having model x1, x2 2 3, 4 2 x1, x2 3 5U Y1 1 x1,x2 0U

Study the scenario and complete the questions that follow: Mango Airlines Mango Airlines operates flights within the South African local market. It has flights from Johannesburg to Cape Town, Johannesburg to Durban, Durban to Cape Town and vice versa. As part of its marketing campaign, the management at Mango Airlines has decided to run a frequent

How to select UNIQUE records from a table using a SQL Query?

GROUP BY clause is used with SELECT statement to collect data from multiple records and group the results by one or more columns. The GROUP BY clause returns one row per group. By applying GROUP BY function on all the source columns, unique records can be queried from the table.

The ROW_NUMBER Analytic function is used to provide consecutive numbering of the rows in the result by the ORDER selected for each PARTITION specified in the OVER clause. It will assign the value 1 for the first row and increase the number of the subsequent rows.

Correlated subquery is used for row-by-row processing. With a normal nested subquery, the inner SELECT query runs once and executes first. The returning values will be used by the main query. A correlated subquery, however, executes once for every row of the outer query. In other words, the inner query is driven by the outer query

How to read TOP 5 records from a table using a SQL query?

EXPLAIN THE CONCEPT OF THE OSI REFERENCE MODEL

Explain about DBMS?

Evaluate 1(2x)dx

Prove that I ()

Does f(x) Satisfy Rolls Theorem

Evaluate lint it exists, where n is a positive integer

118 Find c of the mean value theorem where f(x) x(x 1)(x2) and a0, Section B

dx Frove that ekx, 0 T k

Show that (n.) . (n) 22n1.1(n1)

A window is in the form of a rectangle, surmounted by a semicircle. If the perimeter be 30 meters, find the dimensions so that the greatest possible amount of light maybe admitted. aynand log (1) Hence deduce that

301 Using Maclaurins series, expand log (1 x), Hence deduce that 1X log. x of cin 910

Express xm (1x) dx in terms of Gamma function and show that x (1x) dx 36

x Show that x 2 x3 3(1x) log(1 x) x for x 0

What is CSS? Explain the term thoroughly.

Study the scenario and complete the questions that follow: Staffing Agency Professional Staff Management (PSM) is a unique type of temporary staffing agency. Many organizations today hire highly skilled technical employees on a short-term, temporary basis to assist with special projects or to provide a needed technical skill. PSM negotiates

1. An investor is considering putting 100,000 in stocks of either an energy or manufacturing company. The goal is to generate long-term profit but he is also concerned about the risk exposure. He will be able to determine the risk for each company using a risk index scale of 1-12 (with 12 being the most risky). Total risk is computed by

How memory managed in Python

What is Python? What are the benefits of using Python?

How Python is interpreted?

Explain the programming cycle for Python.

What is IDE Discuss some Python IDE.

Discuss interaction with Python program with example.

What is Python How Python is interpreted What are the tools that help to find bugs or perform static analvsis What are Python decorators

What do you mean by comments in Python

Explain identifiers and keywords with example.

Define variable. Also discuss variable initialization.

What do you mean by data types Explain numeric and string data type with example.

Discuss list and tuple data types in detail.

Explain dictionary and Boolean data type.

What do you mean by type conversion

What is expression

What do you mean by assignment statement

Discuss types of assignment statements with examples.

Define the term operator.

example. Discuss arithmetic and comparison operator with

Explain assignment operator with example.

Define bitwise operator with example.

Discuss logical and identity operator with example.

Explain membership operator with example.

What do you mean by operator precedence

Explain operator associativity.

Write short notes with example The programming cycle for Python, elements of Python, type conversion in Python, operator,precedence, and Boolean expression.

How memory is managed in Python Explain PEP 8. Write a Python program to print even length words in a string.

What are conditional statements in Python

Explain if statement with the help of an example.

What do you mean by ifelse statement Explain with the help of example.

Discuss the Nestedif statement with the help of example.

Explain all the conditional statement in Python using small code example.

odd. Write a program to find whether a number is even or

Write a program to check the largest among the given three numbers.

Write a Python program to check if the input year is a leap year or not.

Write a Python program to display the Fibonacci sequence for n terms.

What do you mean by expression evaluation

Discuss float representation in Python.

Explain expression evaluation and float representation with example. Write a Python program for how to check if a given number is Fibonacci number.

loops. Define loop. Also, discuss the purpose and working of

Discuss while loop in brief.

Explain for loop with the help of example.

What is nested loop Explain.

What is break statement in Python