KEYBOARD SHORTCUTS Press this key	To do this
F1	Display Help
Ctrl+C	Copy the selected item
Ctrl+X	Cut the selected item
Ctrl+V	Paste the selected item
Ctrl+Z	Undo an action
Ctrl+Y	Redo an action
Delete	Delete the selected item and move it to the Recycle Bin
Shift+Delete	Delete the selected item without moving it to the Recycle Bin first
F2	Rename the selected item
Ctrl+Right Arrow	Move the cursor to the beginning of the next word
Ctrl+Left Arrow	Move the cursor to the beginning of the previous word
Ctrl+Down Arrow	Move the cursor to the beginning of the next paragraph
Ctrl+Up Arrow	Move the cursor to the beginning of the previous paragraph
Ctrl+Shift with an arrow key	Select a block of text
Shift with any arrow key	Select more than one item in a window or on the desktop, or select text within a document
Ctrl with any arrow key+Spacebar	Select multiple individual items in a window or on the desktop
Ctrl+A	Select all items in a document or window
F3	Search for a file or folder
Alt+Enter	Display properties for the selected item
Alt+F4	Close the active item, or exit the active program
Alt+Spacebar	Open the shortcut menu for the active window
Ctrl+F4	Close the active document (in programs that allow you to have multiple documents open simultaneously)
Alt+Tab	Switch between open items
Ctrl+Alt+Tab	Use the arrow keys to switch between open items
Ctrl+Mouse scroll wheel	Change the size of icons on the desktop
Windows logo key +Tab	Cycle through programs on the taskbar by using Aero Flip 3-D
Ctrl+Windows logo key +Tab	Use the arrow keys to cycle through programs on the taskbar by using Aero Flip 3-D
Alt+Esc	Cycle through items in the order in which they were opened
F6	Cycle through screen elements in a window or on the desktop
F4	Display the address bar list in Windows Explorer
Shift+F10	Display the shortcut menu for the selected item
Ctrl+Esc	Open the Start menu
Alt+underlined letter	Display the corresponding menu
Alt+underlined letter	Perform the menu command (or other underlined command)
F10	Activate the menu bar in the active program
Right Arrow	Open the next menu to the right, or open a submenu
Left Arrow	Open the next menu to the left, or close a submenu
F5	Refresh the active window
Alt+Up Arrow	View the folder one level up in Windows Explorer
Esc	Cancel the current task
Ctrl+Shift+Esc	Open Task Manager
Shift when you insert a CD	Prevent the CD from automatically playing

Questions related to tolpology-

Q1-Which topology is the collection of two or more topologies ?

a- Hybrid            b- Tree           c- Star              d-Bus

Q2- Which  topology uses HUB or Switch as a central device ?

a- Star       b-    Bus            c- Mesh             d- Hybrid

Q3- In which topology terminator is used ?

a- Star       b- Mesh             c- Ring             d- Bus

Q4- In which topology only one computer's data is transfered at a time. And there is no chances of   collison in network .
a- Star             b- Ring          c- Mesh                d- Tree

Q5- Which topology works on full duplex?
a-  Bus            b- Ring                c- Dual ring           d- Star (switch)

Q6- When multiple stars are connected to a single point to communicate to each other, This topology  is known as-
a- Ring       b- Mesh               c- Tree          d- Hybrid

Q7- In which topology Token is used to give priority to specific device. Only a host which has token , can send data in network.
     a- Mesh           b- Star                c- Ring            d- Hybrid

Q8- In which topology all devices are connected to each other by a dedicated cable. And no central device is used .
a- Star            b- Mesh             c- Hybrid                     d-   Tree

Q9- This is a network toplogy which uses Multistation Access Unit as a central device.
a- Mesh       b- Hybrid         c- Tree                 d- Ring

Q10- Which topology has a backup path . When first path gets fail then second path gets active ?
a-  Dual Ring     b- Tree        c- Hybrid         d- Star


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Amswers-
1 -a
2-a
3-d
4-b
5-d
6-c
7-c
8-b
9-d
10-a

NUMBER SYSTEM

There are many way to write a number. Basically we read and write any number in decimal number system but . In many places some other number systems are used. When we configure IP address in our computer, We need to understand it in binary. and when we need to know more about MAC address or IP v6 we need to know about hexadecimal number system.

Some number systems are-

Decimal Number system -(0123456789) In decimal number system total numbers are 10 . We write any number using these ten numbers.

Binary Number System - (01) There is only two numbers in binary number system. It's base is 2

Octal Number System - (01234567) There is eight numbers in octal number .

Hexadecimal Number System- (0123456789ABCDEF) In hexadecimal number ,there are 16 numbers.

 In banking exams number conversions are  asked.

Examples- Decimal to binary .

 Rule- 1-We divide given number by 2 until last number is 1 or 0 .
           2-Answer is written from bottom to top
           3-Last number will also be added to answer

1-  (255)= (         )                                                                                                                          2-  (4125)= (           )













Examples-  binary to Decimal

Rules- 1- Write the place value of all numbers
           2- Start from right side
           3 - First number will be 1
           4- In binary place values are- 1  2  4  8  16   32   64   128    256   512   1024
           5- Write all number's place value and add them at last , That will be answer.


1-   (1110010)= (  226   )

 2-   (101010101) = (341)

 

Decimal to hexadecimal-

(515)= (   203   )

(511)= (1FF)

 Hexadecimal to Decimal-

(203)=  (515)

(1FF)= (511)

Questions for banking

1. Data Dictionary contains?

a) Data about data (Meta Data) 

b) SQL QUERY

c) Both 1 and 2

d) Networks

e) None of the above

2. ____________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

e) Graph

3. The uniform resource locator (URL) is case sensitive in the ____.

a) Protocol

b) Authority

c) Directory 

d) Type

e) None of the above

4. Who designed the first electronic computer - ENIAC?

a) Van Neuman

b) John Mauchly

c) J presper Eckert

d) Both (b) and (c)

e) None of the above

5. Which of the following is not a network?

a) LAN

b) MAN

c) DRAM 

d) All are networks

e) None of the above

6. Who invented Computer Mouse?

a) Ada Lovelace

b) John Mauchly

c) Charles Babbage

d) Van Neuman

e) Douglas Engelbart 

7. Which type of printer prints by selectively unchanging static electricity from spots on a metal drum?

a) Plotter

b) Dot-matrix printer

c) Laser printer 

d) Ink-jet printer

e) None of the above

8. ___________software allows the user to speak into the computer rather than type in text.

a) Message

b) CHAT

c) Speech recognition 

d) All of the above

e) None of the above

9. What does the XP stand for in Windows XP?

a) Exponential

b) Experience 

c) Expertise

d) Exchange

e) None of the above

10. Word processing, spreadsheet, and photo-editing are examples of________.

a) application software 

b) system software

c) operating system software

d) platform software

e) none of the above

Answers

1-a

2-b

3-c

4-d

5-c

6-e

7-c

8-c

9-b

10-a

Important questions for Banking exams-

1- Which is not an Operating system ?

   a- windows 7             b- fedora           c- Photoshop         d-  Ubuntu

2- How many bit an IP address contains.

   a- 64                           b- 32                  c- 48                      d-16

3- BIOS stands for-

   a- Basic Input Output Setting              b- Beginer Input Output System

   c- Basic Input Output System              d-Basic Incoming outgoing System

4- Which is not a input device ?

  a- Barcode reader       b- Scanner         c- pendrive     d- mouse

5-  Which is not a part of CPU ?

   a- Cache memory    b- ALU       c- CU                d- kernal

6- Which is not a storade device ?

  a- Digitel audio tape       b- Modem      c- floppy         d- DVD

7- Which protocol is responsible for sending emails?

a- POP3        b- RDP                 c- SMTP              d-IP

Q8- How many layers are in OSI model ?

a- 4                        b-5                       c-6                       d-7

Q9- Which layer is responsible for framing ?

a-  Data link layer        b-  Network Layer     c- Physical Layer  d- Transport Layer

Q10-How  many bit a MAC address contains ?

a- 32               b-48               c-64                d-128

Answers-

1-c

2-b

3-c

4-c

5-d

6-b

7-c

8-d

9-a

10-b