Computer General Awareness(Solved), Allahabad Bank Probationary Officers Exam, 2008

Allahabad Bank Probationary Officers Exam, 2008

Computer General Awareness : Solved

(Held on 17-08-2008)

1. Programs from the same developer , sold bundled together , that provide better integration and share common features , toolbars and menus are known as ....

(A) software suites

(B) integrated software packages

(C) software processing packages

(D) personal information managers

(E) none of these

Ans : (A)

2. A data warehouse is which of the following ?

(A) Can be updated by the end users

(B) Contains numerous naming conventions and formats

(C) Organized around important subject areas

(D) Contains only current data

(E) None of these

Ans : (C)

3. ______________ servers store and manages files for network users.

(A) Authentication

(B) Main

(C) Web

(D) File

(E) None of these

Ans : (D)

4. All of the following are examples of real security and privacy risks Except _____

(A) hackers

(B) spam

(C) viruses

(D) identify theft

(E) None of these

Ans : (B)

5. ___________ terminals (formerly known as cash registers) are often connected to complex inventory and sales computer systems .

(A) Data

(B) Sales

(C) Query

(D) (Point-of-sale (POS)

(E) None of these

Ans : (B)

6. The OSI model is divided into _______ processes called layers.

(A) five

(B) six

(C) seven

(D) eight

(E) None of these

Ans : (C)

7. System software is the set of programs that enables your computer's hardware devices and ______ software to work together.

(A) management

(B) processing

(C) utility

(D) application

(E) None of these

Ans : (D)

8. ________ are specially designed computer chips reside inside other devices, such as your car or your electronic thermostat.

(A) Servers

(B) Embedded computers

(C) Robotic computers

(D) Mainframes

(E) None of these

Ans : (B)

9. The following are all computing devices , except.........

(A) notebook computers

(B) cellular telephones

(C) digital scanners

(D) personal digital assistants

(E) None of these

Ans : (C)

10. in a ring topology , the the computer in possession of the ______ can trasmit data

(A) packet

(B) data

(C) access method

(D) token

(E) None of these

Ans : (D)

11. This part of operating system manages the essential peripherals, such as the keyboard, screen , disk drives, and parallel and serial ports ____

(A) basic input/output system

(B) secondary input/output system

(C) peripheral input/output system

(D) marginal input/output system

(E) None of these

Ans : (A)

12. ________ Viruses are often transmitted by a floppy disk left in the floppy drive

(A) Trojan horse

(B) Boot sector

(C) Script

(D) Logic bomb

(E) None of these

Ans : (B)

13. ________ controls the way in which the computer system functions and provides a meAns : by which users can interact with the computer

(A) The platform

(B) Application software

(C) Operating system

(D) The motherboard

(E) None of these

Ans : (C)

14. Servers are computers that provide resources to other computers connected to a ___________

(A) mainframe

(B) network

(C) supercomputer

(D) client

(E) None of these

Ans : (B)

15. A goal of data mining includes which of the following?

(A) To explain some observed event or condition

(B) To confirm that data exists

(C) To analyze data for expected relationships

(D) To create a new data warehouse

(E) None of these

Ans : (A)

16. URL stands for ........

(A) Universal Research List

(B) Universal Resource List

(C) Uniform Resource Locator

(D) Uniform Research Locator

(E) None of these

Ans : (C)

17. A database management system (DBMS) is a ............

(A) hardware system used to create , maintain and provide controlled access to a database

(B) hardware system used to create, maintain, and provide uncontrolled access to a database.

(C) software system used to create, maintain, and provide uncontrolled access to a database.

(D) software system used to create, maintain, and provide controlled access to a database.

(E) None of these

Ans : (D)

18. Which of the following is NOT a goal of transaction processing system ?

(A) Capture , process and store transactions

(B) Produce a variety of documents related to routine business activities

(C) Reduce manual effort associated with processing business transactions

(D) Produce standard reports used for management decision making

(E) None of these

Ans : ()

19. A Proxy server is used for which of the following?

(A) To provide security against unauthorized users

(B) To process client requests for web pages

(C) To process client requests for database access

(D) To provide TCP/IP

(E) None of these

Ans : (B)

20. When data changes in multiple lists and all lists are not updated, this causes:

(A) data redundancy

(B) information overload

(C) duplicate data

(D) data inconsistency

(E) None of these

Ans : (D)

21. _____________ are words that a programming language has set aside for its own use.

(A) Control worlds

(B) Reserved words

(C) Control structures

(D) Reserved keys

(E) None of these

Ans : (B)

22. What is the primary difference between a virus and a worm?

(A) A worm has the ability to self-propagate from an infected user's computer to other computers

(B) A worm is usually written by a cracker: Script bunnies do not have the skills to develop a worm program

(C) A virus is very harmful to the computers it infects : a worm is not a serious a problem

(D) Anti-virus software is effective in fighting viruses but not worms

(E) None of these

Ans : ()

23. ______ describe what is database fields.

(A) Structures

(B) Field markers

(C) Field definition

(D) Field names

(E) None of these

Ans : (D)

24. You must install a (n) ____________ on a network if you want to share a broadband Internet connection.

(A) router

(B) modem

(C) node

(D) cable

(E) None of these

Ans : (A)

25. A goal of normalization is to __________

(A) minimize the number of relationships

(B) minimize the number of entities

(C) minimize the number of tables

(D) minimize the number of redundancy

(E) None of these

Ans : (D)

26. Granting an outside organization access to internet web pages is often implemented using a (n) ____

(A) extranet

(B) intranet

(C) internet

(D) hacker

(E) None of these

Ans : (A)

27. Which term identifies a specific computer on the web and the main page of the entire site

(A) URL

(B) Web site address

(C) Hyperlink

(D) Domain name

(E) None of these

Ans : (A)

28. The code that relational database management systems use to perform their database task is referred to as .....

(A) QBE

(B) SQL

(C) OLAP

(D) Sequel Server

(E) None of these

Ans : (B)

29. Chip is a common nickname for a (n):

(A) transistor

(B) resistor

(C) integrated circuit

(D) semiconductor

(E) None of these

Ans : (C)

30. The purpose of the primary key in a database is to:

(A) unlock the database

(B) provide a map of the data

(C) uniquely identify a record

(D) establish constraints on database operations.

(E) None of these

Ans : (B)

31. A _________ contains specific rules and words that express the logical steps of an algorithm.

(A) programming language

(B) syntax

(C) programming structure

(D) logic chart

(E) None of these

Ans : ()

32. The design of the network is called the network:

(A) architecture

(B) server

(C) transmission

(D) type

(E) None of these

Ans : (A)

33. The most frequently used instructions of a computer program are likely to be fetched from:

(A) the hard disk

(B) cache memory

(C) RAM

(D) registers

(E) None of these

Ans : (B)

34. The ____________ contains data descriptions and defines the name, data type, and length of each field in the database.

(A) data dictionary

(B) data table

(C) data record

(D) data field

(E) None of these

Ans : (A)

35. Personal logs or journal entries posted on the Web are known as:

(A) listservs

(B) Webcasts

(C) blogs

(D) subject directories

(E) None of these

Ans : (C)

36. A(n) _______ uses pictures (called icons) and menus displayed on the screen to send commands to the computer system.

(A) command - based user interface

(B) GUI

(C) system utility

(D) API

(E) None of these

Ans : (B)

37. The _____ manual tells you how to use a software program.

(A) documentation

(B) programming

(C) technical

(D) user

(E) None of these

Ans : ()

38. Which of the following is NOT a type of broadband Internet connection?

(A) Cable

(B) DSL

(C) Dial-up

(D) Satellite

(E) None of these

Ans : (C)

39. Software, such as viruses, worms and Trojan horses, that has a malicious intent, is known as:

(A) spyware

(B) adware

(C) spam

(D) malware

(E) None of these

Ans : (D)

40. Making a field ______ meAns : that it cannot be left blank.

(A) numeric

(B) required

(C) calculated

(D) validated

(E) None of these

Ans : (B)

41. _________ is the process of finding errors in software code.

(A) Debugging

(B) Compiling

(C) Testing

(D) Running

(E) None pf these

Ans : ()

42. ____________ are viruses that are triggered by the passage of time or on a certain date.

(A) Boot-sector viruses

(B) Macro viruses

(C) Time bombs

(D) Worms

(E) None of these

Ans : (C)

43. Linux is a (n) ____________ operating system.

(A) open-source

(B) Microsoft

(C) Windows

(D) Mac

(E) None of these

Ans : (A)

44. What is a backup?

(A) Restoring the information backup

(B) An exact copy of a system's information

(C) The ability to get a system up and running in the event of a system crash or failure

(D) All of these

(E) None of these

Ans : (D)

45. Which of the following places the common data elements in order from smallest to largest

(A) character, file, record, field, database

(B) character, record, field, database, file

(C) character, field, record, file, database

(D) Bit, byte, character, record, field, file, database,

(E) None of these

Ans : (C)

46. The internet is ......

(A) a large network of networks

(B) an internal communication system for a business

(C) a communication system for the Indian government

(D) All of these

(E) None of these

Ans : (D)

47. ____________ are lists of commands that appear on the screen.

(A) GUIs

(B) Icons

(C) Menus

(D) Windows

(E) None of these

Ans : (C)

48. Which of the following statements is FALSE concerning file names?

(A) Files may share the same name or the same extension but not both

(B) Every file in the same folder must have a unique name

(C) File extension is another name for file type

(D) The file extension comes before the dot (.) followed by the file name

(E) None of these

Ans : (D)

49. Verification of a login name and password is known as:

(A) configuration

(B) accessibility

(C) authentication

(D) logging in

(E) None of these

Ans : (C)

50. Which of the following would most likely NOT be a symptom of a virus?

(A) Existing program files and icons disappear.

(B) The CD-ROM stops functioning.

(C) The Web browser opens to an unusual home page.

(D) Odd messages or images are displayed on the screen.

(E) None of these

Ans : (B)

(Disclaimer, I Found them on internet (while searching) and publishing them on my blog also to help the world)

Computer General Knowledge for Bank P.O. and Clerk Exams

Computer General Knowledge for Bank P.O. & Clerk Exams

1. All of the following are examples of real security and privacy risks EXCEPT:

A. hackers.

B. spam.

C. viruses.

D. identity theft.

Ans : B

2. A process known as ____________ is used by large retailers to study trends.

A. data mining

B. data selection

C. POS

D. data conversion

Ans : A

3. ____________terminals (formerly known as cash registers) are often connected to complex inventory and sales computer systems.

A. Data

B. Point-of-sale (POS)

C. Sales

D. Query

Ans : B

4. A(n) ____________ system is a small, wireless handheld computer that scans an item’s tag and pulls up the current price (and any special offers) as you shop.

A. PSS

B. POS

C. inventory

D. data mining

Ans : A

5. The ability to recover and read deleted or damaged files from a criminal’s computer is an example of a law enforcement specialty called:

A. robotics.

B. simulation.

C. computer forensics.

D. animation.

Ans : C

6. Which of the following is NOT one of the four major data processing functions of a computer?

A. gathering data

B. processing data into information

C. analyzing the data or information

D. storing the data or information

Ans : C

7. ____________ tags, when placed on an animal, can be used to record and track in a database all of the animal’s movements.

A. POS

B. RFID

C. PPS

D. GPS

Ans : B

8. Surgeons can perform delicate operations by manipulating devices through computers instead of manually. This technology is known as:

A. robotics.

B. computer forensics.

C. simulation.

D. forecasting.

Ans : A

9. Technology no longer protected by copyright, available to everyone, is considered to be:

A. proprietary.

B. open.

C. experimental.

D. in the public domain.

Ans : A

10. ____________ is the study of molecules and structures whose size ranges from 1 to 100 nanometers.

A. Nanoscience

B. Microelectrodes

C. Computer forensics

D. Artificial intelligence

Ans : A

11. ____________ is the science that attempts to produce machines that display the same type of intelligence that humans do.

A. Nanoscience

B. Nanotechnology

C. Simulation

D. Artificial intelligence (AI)

Ans : D

12. ____________ is data that has been organized or presented in a meaningful fashion.

A. A process

B. Software

C. Storage

D. Information

Ans : D

13. The name for the way that computers manipulate data into information is called:

A. programming.

B. processing.

C. storing.

D. organizing.

Ans : B

14. Computers gather data, which means that they allow users to ____________ data.

A. present

B. input

C. output

D. store

Ans : B

15. After a picture has been taken with a digital camera and processed appropriately, the actual print of the picture is considered:

A. data.

B. output.

C. input.

D. the process.

Ans : B

16. Computers use the ____________ language to process data.

A. processing

B. kilobyte

C. binary

D. representational

Ans : C

17. Computers process data into information by working exclusively with:

A. multimedia.

B. words.

C. characters.

D. numbers.

Ans : D

18. In the binary language each letter of the alphabet, each number and each special character is made up of a unique combination of:

A. eight bytes.

B. eight kilobytes.

C. eight characters.

D. eight bits.

Ans : D

19. The term bit is short for:

A. megabyte.

B. binary language.

C. binary digit.

D. binary number.

Ans : C

20. A string of eight 0s and 1s is called a:

A. megabyte.

B. byte.

C. kilobyte.

D. gigabyte.

Ans : B

21. A ____________ is approximately one billion bytes.

A. kilobyte

B. bit

C. gigabyte

D. megabyte

Ans : C

22. A ____________ is approximately a million bytes.

A. gigabyte

B. kilobyte

C. megabyte

D. terabyte

Ans : C

23. ____________ is any part of the computer that you can physically touch.

A. Hardware

B. A device

C. A peripheral

D. An application

Ans : A

24. The components that process data are located in the:

A. input devices.

B. output devices.

C. system unit.

D. storage component.

Ans : C

25. All of the following are examples of input devices EXCEPT a:

A. scanner.

B. mouse.

C. keyboard.

D. printer.

Ans : D

26. Which of the following is an example of an input device?

A. scanner

B. speaker

C. CD

D. printer

Ans : A

27. All of the following are examples of storage devices EXCEPT:

A. hard disk drives.

B. printers.

C. floppy disk drives.

D. CD drives.

Ans : B

28. The ____________, also called the “brains” of the computer, is responsible for processing data.

A. motherboard

B. memory

C. RAM

D. central processing unit (CPU)

Ans : D

29. The CPU and memory are located on the:

A. expansion board.

B. motherboard.

C. storage device.

D. output device.

Ans : B

30. Word processing, spreadsheet, and photo-editing are examples of:

A. application software.

B. system software.

C. operating system software.

D. platform software.

Ans : A

31. ____________ is a set of computer programs used on a computer to help perform tasks.

A. An instruction

B. Software

C. Memory

D. A processor

Ans : B

32. System software is the set of programs that enables your computer’s hardware devices and ____________ software to work together.

A. management

B. processing

C. utility

D. application

Ans : D

33. The PC (personal computer) and the Apple Macintosh are examples of two different:

A. platforms.

B. applications.

C. programs.

D. storage devices.

Ans : A

34. Apple Macintoshes (Macs) and PCs use different ____________ to process data and different operating systems.

A. languages

B. methods

C. CPUs

D. storage devices

Ans : C

35. Servers are computers that provide resources to other computers connected to a:

A. network.

B. mainframe.

C. supercomputer.

D. client.

Ans : A

36. Smaller and less expensive PC-based servers are replacing ____________ in many businesses.

A. supercomputers

B. clients

C. laptops

D. mainframes

Ans : D

37. ____________ are specially designed computers that perform complex calculations extremely rapidly.

A. Servers

B. Supercomputers

C. Laptops

D. Mainframes

Ans : B

38. DSL is an example of a(n) ____________ connection.

A. network

B. wireless

C. slow

D. broadband

Ans : D

39. The difference between people with access to computers and the Internet and those without this access is known as the:

A. digital divide.

B. Internet divide.

C. Web divide.

D. broadband divide.

Ans : A

40. ____________ is the science revolving around the use of nanostructures to build devices on an extremely small scale.

A. Nanotechnology

B. Micro-technology

C. Computer forensics

D. Artificial intelligence

Ans : A

41. Which of the following is the correct order of the four major functions of a computer?

A. Process à Output à Input à Storage

B. Input à Outputà Process à Storage

C. Process à Storage à Input à Output

D. Input à Process à Output à Storage

Ans : D

42. ____________ bits equal one byte.

A. Eight

B. Two

C. One thousand

D. One million

Ans : A

43. The binary language consists of ____________ digit(s).

A. 8

B. 2

C. 1,000

D. 1

Ans : B

44. A byte can hold one ____________ of data.

A. bit

B. binary digit

C. character

D. kilobyte

Ans : C

45. ____________ controls the way in which the computer system functions and provides a means by which users can interact with the computer.

A. The platform

B. The operating system

C. Application software

D. The motherboard

Ans : B

46. The operating system is the most common type of ____________ software.

A. communication

B. application

C. system

D. word-processing software

Ans : C

47. ____________ are specially designed computer chips that reside inside other devices, such as your car or your electronic thermostat.

A. Servers

B. Embedded computers

C. Robotic computers

D. Mainframes

Ans : B

48. The steps and tasks needed to process data, such as responses to questions or clicking an icon, are called:

A. instructions.

B. the operating system.

C. application software.

D. the system unit.

Ans : A

49. The two broad categories of software are:

A. word processing and spreadsheet.

B. transaction and application.

C. Windows and Mac OS.

D. system and application.

Ans : D

50. The metal or plastic case that holds all the physical parts of the computer is the:

A. system unit.

B. CPU.

C. mainframe.

D. platform.

Ans : A

(Disclaimer, I Found them on internet (while searching) and publishing them on my blog also to help the world)

ASP.NET Page Life Cycle Overview

Page Event	Typical Use
PreInit	Use this event for the following: · Check the IsPostBack property to determine whether this is the first time the page is being processed. · Create or re-create dynamic controls. · Set a master page dynamically. · Set the Theme property dynamically. · Read or set profile property values. Note: If the request is a postback, the values of the controls have not yet been restored from view state. If you set a control property at this stage, its value might be overwritten in the next event.
Init	Raised after all controls have been initialized and any skin settings have been applied. Use this event to read or initialize control properties.
InitComplete	Raised by the Page object. Use this event for processing tasks that require all initialization be complete.
PreLoad	Use this event if you need to perform processing on your page or control before the Load event. Before the Page instance raises this event, it loads view state for itself and all controls, and then processes any postback data included with the Request instance.
Load	The Page calls the OnLoad event method on the Page, then recursively does the same for each child control, which does the same for each of its child controls until the page and all controls are loaded. Use the OnLoad event method to set properties in controls and establish database connections.
Control events	Use these events to handle specific control events, such as a Button control's Click event or aTextBox control's TextChanged event. Note: In a postback request, if the page contains validator controls, check the IsValid property of the Page and of individual validation controls before performing any processing.
LoadComplete	Use this event for tasks that require that all other controls on the page be loaded.
PreRender	Before this event occurs: · The Page object calls EnsureChildControls for each control and for the page. · Each data bound control whose DataSourceID property is set calls its DataBind method. For more information, see Data Binding Events for Data-Bound Controls later in this topic. The PreRender event occurs for each control on the page. Use the event to make final changes to the contents of the page or its controls.
SaveStateComplete	Before this event occurs, ViewState has been saved for the page and for all controls. Any changes to the page or controls at this point will be ignored. Use this event perform tasks that require view state to be saved, but that do not make any changes to controls.
Render	This is not an event; instead, at this stage of processing, the Page object calls this method on each control. All ASP.NET Web server controls have a Render method that writes out the control's markup that is sent to the browser. If you create a custom control, you typically override this method to output the control's markup. However, if your custom control incorporates only standard ASP.NET Web server controls and no custom markup, you do not need to override the Render method. A user control (an .ascx file) automatically incorporates rendering, so you do not need to explicitly render the control in code.
Unload	This event occurs for each control and then for the page. In controls, use this event to do final cleanup for specific controls, such as closing control-specific database connections. For the page itself, use this event to do final cleanup work, such as closing open files and database connections, or finishing up logging or other request-specific tasks. Note: During the unload stage, the page and its controls have been rendered, so you cannot make further changes to the response stream. If you attempt to call a method such as the Response.Writemethod, the page will throw an exception.

Whats are the New Features in Microsoft Office 2010

1. Built-In Screen Capture Tool

A really handy addition & at the same time a beautiful implementation of the same. Word & Powerpoint both have the ‘Screenshot’ feature under ‘Insert’ & the useful part is that it caches screen shots of the currently open windows for one-click insert. At the same time also gives you the marquee select option.

2. Background Removal Tool (for images)

A new addition to picture properties is ‘Background Removal’.

3. Protected Mode

Every time you download a document from the internet & open it, Word 2010 will open it in a ‘Protected mode’ that won’t allow you to edit the document unless you enable editing of the document. You can edit which file types are to be opened in the protect mode from the Trust Center panel.

4. New Smart Art Templates

Smart Art It’s right up there amongst the best features in Office and in Office 2010 there are new templates added. Existing categories have new templates & there’s a new category as well.

5. Author Permissions

Co-authoring a document & collaborating over the Internet will be one of Office 2010’s USPs, the ‘Protect Document’ option under ‘Review’ in Office 2007 has now been renamed to ‘Restrict Editing’ & a new tab titled ‘Block Authors’ has been added.

6. Completely Revamped Options Under the Office Button

Office 2010 has introduced a huge a change in the document options that are presented to you under the Office button. One of biggest pains was the meta-data that can be added in a

document. Quick access to permissions, document meta-data under document info. With Office 2010 you now have the option of saving your document to a SharePoint location as well.

7. Print Control Panel Under the Office Button

This is a fantastic addition, clicking ‘Print’ under the Office 2010 button opens a plethora of printing options. No need go through a ‘Print Wizard’ you can select all your print options from here & hit print.

8. Jumplists in Outlook 2010

As you’ll might have seen, Outlook 2010 now makes use of Windows 7’s Jumplist feature for quick access to certain processes.

9. Broadcast Presentations To Your Clients

Now you can broadcast your presentations by sending the intended viewer a URL, this works along with Office Live Workspaces & you need an account of the same.

10. Inserting & Editing Videos Is Painless & Fun

11. Compress Media While Saving Presentations

The all new file menu, known as — Backstage gives you options to compress the media files inserted in the presentation to reduce file size, it even gives an esitmate of the presentation size.

12. New Animations & Slide Transitions

My favorite from the new ones is the Gallery transition effect. Another addition to transitions is that the % can be defined.

13. Save File Notification

When closing an unsaved file Office 2010 now lets you know that it has auto-saved a draft.

14. Hide Ribbon

With Office 2010, a cleaner interface has been worked upon. There is now a single-click show/hide option for the Ribbon.

What is 'GodMode' in Windows 7

Although its name suggests perhaps even grander capabilities, Windows enthusiasts are excited over the discovery of a hidden "GodMode" feature that lets users access all of the operating system's control panels from within a single folder.

By creating a new folder in Windows 7 and renaming it with a certain text string at the end, users are able to have a single place to do everything from changing the look of the mouse pointer to making a new hard-drive partition.

The trick is also said to work in Windows Vista, although some are warning that although it works fine in 32-bit versions of Vista, it can cause 64-bit versions of that operating system to crash.

To enter "GodMode", one need only create a new folder and then rename the folder to the following:

GodMode.{ED7BA470-8E54-465E-825C-99712043E01C}

Once that is done, the folder's icon will change to resemble a control panel and will contain dozens of control options. I'm not sure it's my idea of playing God, but it is a handy way to get to all kinds of controls.

I've asked Microsoft for more details on the feature and how it came to be. But so far, Redmond is silent on the topic.

This article was first published as a blog post on CNET News.
Source : http://www.zdnetasia.com/news/software/0,39044164,62060303,00.htm?scid=rss_z_nw

How to Encrypt or Decrypt Connection Strings in ASP .Net 3.5

We can encrypt the section of a web configuration file (web.config).

After the Encryption of Connection Strings is done, you will notice a change in web.config file, that the contents of the section are no longer visible.

However, an ASP.NET page can continue to read the values of the Corresponding Database (For e.g. GuestBook connections string by using the <%$ ConnectionStrings:GuestBook %> expression.

The easiest way to encrypt the section is to use the aspnet_regiis

command-line tool. This tool is located in the following folder:

C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\

Executing the following command encrypts the section of a

Web.Config file located in a folder with the path c:\Websites\myGuestBook

aspnet_regiis -pef connectionStrings “c:\Websites\ myGuestBook”

The -pef option (Protect Encrypt Filepath) encrypts a particular configuration section

located at a particular path.

You can decrypt a section with the -pdf option like this:

aspnet_regiis -pdf connectionStrings “c:\Websites\myGuestBook”

how do you programmatically raise a button-click event

You can use the following C# code raise the event:

((IPostBackEventHandler)Button1).RaisePostBackEvent(null);

This code will raise the button-click event for Button1 just as though the user clicked the button. Since we are passing a null as the EventArgs for the event, the registered methods must not attempt to do anything with it. Or, you could create an EventArgs object and pass it.