Computer Engineering Questions and Answers June 05, 2021

Design an application that display a listview of contacts. Each listitem of the list view must display contacts picture, name and cell number. The idea is similar to the home screen of WhatsApp. When a user clicks on a listitem (or contact), a toast message should be displayed to himher about the Contactname and cellnumber. You can hardcode few

FreeRTOS is an example of a opensource realtime operating system (RTOS) kernel which supports both mutexes and semaphores, as well as both cooperative, and pre emptive, priority based multitasking systems. (a) Explain, in your own words, the operation of a FreeRTOS application, with two independent tasks, that uses a preemptive tickbased

A critical realtime system must be implemented using the ESP8266 RTOS SDK. The system has 3 jobs Job A aperiodic triggered by a high on a GPIO pin Job B periodic with a period of 10 units Job C periodic with a period of 5 units Figure Q1.b on page 3 contains two potential C listings for the implementation. Which listing would you prefer Justify

The ESP8266 RTOS SDK documentation states that The I2C APIs are not threadsafe, if you want to use one I2C port in different tasks, you need to take care of the multithread issue. Explain, in your own words, what is meant by the phrase threadsafe, and 5 marks describe one strategy to manage the resulting multithread issue.

To ensure that critical systems remain up, redundant subsystems are often 5 marks utilised. Does running two copies of a task, with separate taskcontrolblocks, on the same processor qualify as a redundant subsystem Support your answer by referring to historical case studies of embedded system failure.

Describe, in your own words, the role of Trusted Platform Modules (TPM) in 5 marks embedded systems. Your answer should identify at least one advantage or disad vantage of utilising TPM. Q1 Total 25 marks

For this assignment, you will implement the find() (at list 129) and replaceAt() (at line 123) methods of the List class that we looked at in class. The public int find(Object val) method searches the linked list looking for an item that matches the Object in val. If it finds the object, it returns the index at which it was found in the list. If

Wrote a WebGL program that displays the graph of a bivariate function z f (x, y) for (x,y) in D0,1x0,1. f(x, y) el0.04(80a40)(90y45))) cos(0.15(80x 40) (90y 45)) The following procedure creates the polygonal (triangle) mesh surface partition D into a k1 by k1 uniform rectangular grid, and partition each of the kk squares into a pair of

PROGRAME THE FOLLOWING REQUIREMENTS The content and topic of the new images and tables are up to you. How much is required for the user registration is up to you as well. However, the registration and associated login should contain at least a login name and password.

This exercise uses your programming environment to enhance the Web site you created last week with additional functionality to include images, tables, and a Form using Python flask. Specifically, you will add two (2) additional routes allowing a user to register and log in to a website. Additional security considerations include other routes

We plan to design a power adapter. Which relationship ( Containment/Satisfy/Verify/Refine/Derive Requirement/Copy/Trace ) will I use in the following situations? 1. Requirement A is specified as the power adapter must be slim. Since this requirement is too abstract, I define a new requirement as the height of the power adapter must be less than 2

Explain Immediate Database Modification log based recovery method.

Explain system recovery procedure with Checkpoint record concept.

Explain Shadow Paging Technique.

What is concurrency? What are the methods to control concurrency?

What are the three problems due to concurrency? How the problems can be avoided.

What is concurrency control? Why Concurrency control is needed?

Define lock. Define locking. Explain lock based protocol.

Explain two phase locking protocol. What are its advantages and disadvantages? OR Explain two phase locking. Explain its advantage and disadvantage.

Explain strict two phase locking. Explain its advantage and disadvantage.

Explain time stamp based protocol.

What is deadlock? Explain wait-for-graph. When it occurs? OR Define deadlock. Explain wait-for-graph. Explain different conditions that lead to deadlock.

Explain deadlock detection and recovery.

Explain deadlock prevention methods. OR Explain methods to prevent deadlock.

What is data security? (Define data security). What are the objectives while designing secure database?

What is the difference between security and integrity?

Explain (Describe) data encryption in detail (brief). OR Write short note on data encryption

Explain types of access control methods of data security OR Explain discretionary access control and mandatory access control of data security.

What is audit trail (audit log)?

Explain the advantages of PL/SQL.

Write short note on stored procedure in PL/SQL. OR Explain stored procedures in PL/SQL.

Explain database trigger with example. OR Write short note on database triggers in PL/SQL. OR What is trigger? Explain its type with their syntax.

What is cursor? Explain with example. OR Write short note on cursors and its types.

Write a PL/SQL block to print the sum of Numbers from 1 to 50.

Write a PL/SQL block to print the given number is Odd or Even.

Write a PL/SQL block to print sum of even numbers between 1 and 20.

Write a PL/SQL program for inserting even numbers in EVEN table and odd number in ODD table from number 1 to 50.

Explain PHP file structure.

Why PHP is known as loosely typed language?

Explain Type Casting.

Explain Switch statement in PHP with example.

Explain While statement with syntax and example

Write PHP script to find reverse number of a given number.

Write a PHP script to find whether given number is prime or not prime.

Explain .NET Framework Architecture

Explain Namespace with details

Explain Common Language Runtime (CLR) OR Write a Short note on CLR.

Explain Managed code and Unmanaged code

Explain String Manipulation

What is Exception in C#? Explain Exception handling in C# with Example.

Properties and Indexers (What is Property? What is indexer? Differentiate Property & Indexer. Explain it with Suitable Example.)

Explain Constructor and Destructors in c#.

What is Inheritance? Explain with Example in C#.

Explain Attributes and Reflection.

Explain Reflection API in C# with Example.

Compare classic ADO and ADO.Net.

Explain ADO.Net Architecture with figure.

Explain different ADO.Net objects with Example.

Explain the Windows Forms Controls

Explain MDI Form.

What is GDI+? Give example showing use of GDI+.

Explain ASP.Net Webpage life cycle & Events

Explain various Server Controls of ASP.Net

Explain various Validation Controls of ASP.Net

Explain various Rich server Controls in ASP.Net

Explain the concepts of Master Page and Nested Master Page in ASP.Net

Explain the ASP.Net Themes with Skin file and CSS

Explain various State management policies in ASP.Net

Explain WPF with its features

Difference between HTML 4.0 and 5.0.

Explain Form Elements.

How CSS can be applied on Hyperlinks. Explain 5 states of hyperlink.

List types of CSS. Explain in details.

Any two HTML tags.

What is array? Explain Types of array with example.

Explain FOREACH statement with example

Explain any two String and Date functions.

Explain passing by reference to function.

Explain predefined constants in PHP and Global statement.

Give difference between GET and POST methods.

Explain following method to pass variable between pages 1) Using URL 2) Using Form

What is SESSION? Explain with example.

What is cookie? Explain with example.

List MySql functions and explain any TWO with example.

Write a PHP script to create database named Company

Explain field modifier in MySql.

Write PHP script to insert data in Tbl_Employee table through HTML form. Fields of Tbl_Employee Table (EmpId, EmpName, Department)

Write a program to read Bank Account related information like Account number, Balance, Branch Name from Account table and display all these information in table format on output screen.

Write PHP code for deleting record from a table. Assume suitable database.

Explain WHILE loop in PL/SQL.

Explain FOR loop in PL/SQL

Write short note: PL/SQL data types

Explain GOTO statement by example

. Draw and explain generic PL/SQL block

Explain stepstool manage explicit cursors.

Write short note: Parameterized cursor

Explain InetAddress methods with appropriate example

Explain URL and URLConnection class with example

Write TCP and UDP program for two way communication

Write a client-server program using UDP socket. Client send the list of N strings and server responds the concatenation of those strings.

Write a client server program using TCP where client sends a string and server checks whether that string is palindrome or not and responds with appropriate message.