Sunday, December 22, 2019
Wednesday, November 27, 2019
HTML TAGS
Video tag:
<embed
width="500" height="500" src="1.mp4">
Anchor tag:
<a
href="1.doc"> Open file to click</a>
<a href="www.google.com">google</a>
Font tag:
<font
color="red" size="25" face="Arial">My website
font tag</font>
Image tag:
<img
src="1.jpg">
Table tag:
<table
border=”1”>
<tr><td>1</td><td>delhi</td></tr>
<tr><td>2</td><td>jaipur</td></tr>
</table>
Input type:
<input
type="text" name="firstname">
Example:
<html>
<body>
<h2>Text
Input</h2>
<form>
First name:<br>
<input type="text"
name="firstname">
<br>
Last name:<br>
<input type="text"
name="lastname">
</form>
</body>
</html>
Radio Button:
<html>
<body>
<h2>Radio
Buttons</h2>
<form>
<input type="radio"
name="gender" value="male" checked> Male<br>
<input type="radio"
name="gender" value="female"> Female<br>
<input type="radio"
name="gender" value="other"> Other
</form>
</body>
</html>
Drop down list:
<html>
<body>
<h2>The
select Element</h2>
<p>The
select element defines a drop-down list:</p>
<form
action="/action_page.php">
<select name="cars">
<option
value="volvo">Volvo</option>
<option
value="saab">Saab</option>
<option
value="fiat">Fiat</option>
<option
value="audi">Audi</option>
</select>
<br><br>
<input type="submit">
</form>
</body>
</html>
Input password:
<input
type="password" name="psw">
Input checkbox:
<input
type="checkbox" name="vehicle1" value="Bike">
Button :
<input
type="button"
value="Click Me!">
<input
type="button" onclick="alert('Hello World!')"
value="Click Me!">
Number:
<input
type="number" name="quantity" min="1"
max="5">
Date:
<input
type="date" name="bday">
Range:
<input type="range" name="points"
min="0" max="10">
<input
type="submit">
Unordered
HTML List
<ul>
<li>Coffee</li>
<li>Tea</li>
<li>Milk</li>
</ul>
<li>Coffee</li>
<li>Tea</li>
<li>Milk</li>
</ul>
Ordered HTML List
<ol>
<li>Coffee</li>
<li>Tea</li>
<li>Milk</li>
</ol>
<li>Coffee</li>
<li>Tea</li>
<li>Milk</li>
</ol>
Monday, November 18, 2019
Tuesday, November 12, 2019
Friday, November 8, 2019
Thursday, October 31, 2019
Friday, October 18, 2019
Tuesday, October 8, 2019
Sunday, October 6, 2019
Saturday, October 5, 2019
Computer notes
Data: Raw facts and figures, like
numbers, text are called data.
Information: The meaning way data is
called information.
Instruction: It is a command given to
computer.
Program: The set of instruction
given to a computer to perform a task is called program.
Software: The set of program is
called software. Ex- addition, subtraction and multiplication makes software of
calculator.
Input: Data or information given
to the computer is called input.
Output: The result of computer is
called output.
MS WORDÃ
Microsoft Word
is a word processor developed by Microsoft.
It is used for creating,
editing, formatting, storing, retrieving and printing of a text document.
Microsoft Word's file
formats are denoted either by a .doc or .docx file extension.
Cursor : A cursor is an indicator used to show
the position on a computer monitor.
Save : Save is
used for saving current editing.
Save as : Save as is
used to save a document for the first time. It is also used to change the
location of the saved file in the computer.
Print Preview : Print
Preview is used to see the document
before the printout is taken.
Cut and Paste : Cut and
Paste options are used to move the data
from one part of the document to another.
Copy and Paste : Copy and
Paste options are used to make duplicate
copy of data from one part of the document to another.
Title Bar: The
bar at the top of the window that have the name of the window, is known as Title Bar.
Header and Footer : Header and
Footer option is used to display
information such as title and page number of the document.
Header is
located at the top and Footer is located at bottom of the page.
Microsoft ExcelÃ
Microsoft Excel is a spreadsheet
application developed by
Microsoft.
Microsoft Excel's native file formats are
denoted either by a .xls or .xlsx
file extension.
Workbook: A Microsoft office
document that contains one or more
Worksheets/ Spreadsheets is known as a Workbook.
MS Excel have 3 worksheet by default.
ROW: 1,048,576
COLUMN: 16,384
Cell: The intersection of a row
and column is called a Cell.
Active Cell: The cell in which we are currently working is
known as Active Cell.
Cell
Address:
The letter and number of the intersecting column and row is
the Cell
Address.
Microsoft
PowerPointÃ
Microsoft
PowerPoint is
a slide show presentation program
developed by Microsoft.
Filename extension: .ppt, .pptx
Computer shortcut Keys
Shortcut
Key:
CTRL + A =
SELECT ALL
CTRL + B =
BOLD
CTRL + C =
COPY
CTRL + D = Open
FONT Dialog
CTRL + E =
CENTER ALIGNMENT
CTRL + F =
FIND
CTRL + G =
GO TO
CTRL + H =
REPLACE
CTRL + I =
ITALIC
CTRL + J =
JUSTIFIED
CTRL + K =
HYPERLINK
CTRL + L =
LEFT ALIGNMENT
CTRL + N =
NEW FILE
CTRL + O =
OPEN
CTRL + P =
PRINT
CTRL + R =
RIGHT ALIGNMENT
CTRL + S =
SAVE
CTRL + U =
UNDERLINE
CTRL + V =
PASTE
CTRL + X =
CUT
CTRL + Y =
REDO
CTRL + Z =
UNDO
Computer full form learn
Computer Full Form:
COMPUTER
– Commonly Operated
Machine Particularly Used for Technology Education and Research
BIOS - Basic input Output
System
URL - Uniform Resource
Locator
CMOS - Complementary Metal Oxide Semi-
Conductor
SMTP
- Simple Mail Transfer Protocol
HTTP
- Hyper Text Transfer Protocol
HTML
– Hyper Text Markup Language
ARP
- Address Resolution Protocol
IP
- Internet Protocol
DHCP
- Dynamic Host Configuration Protocol
GIF
- Graphics Interchange Format
CDMA - Code Division Multiple Access
GSM
- Global System for Mobile Communication
GPS
- Global Positioning System
GUI
- Graphical User Interface
CUI
– Command User Interface
HDMI
High Definition Multimedia Interface
HDD
Hard Disc Drive
NIC
- Network Interface Card
HDTV - High Definition Television
ISP
- Internet Service Provider
JPEG
- Joint Picture Expert Group
CRT
Cathode Ray Tube
LCD
- Liquid Crystal Display
LED
- Light Emitting Diode
DSL
- Digital Subscriber Line
MAC
- Media Access Control
LAN
– Local Area Network
WAN-
Wide Area Network
CAN
- Campus Area Network
PAN
- Personal Area Network
IPV4
- Internet Protocol Version 4
IPV6 - Internet Protocol Version 6
DBMS
- Data Base Management System
MODEM
- Modulator Demodulator
RAM
- Random Access Memory
ROM
- Read Only Memory
SMPS
- Switch Mode Power Supply
OMR
- Optical Mark Reader
OCR
- Optical Character Reader
BCR
- Bar Code Reader
MICR
- Magnetic Ink Character Reader
SRAM
- Static RAM
DRAM
- Dynamic RAM
PROM
- Programmable ROM
EPROM
- Erasable Programmable ROM(UV-UltraViolet Rays)
EEPROM
- Electrically Erasable Programmable ROM
CD
- Compact Disc
DVD
- Digital Video/Versatile Disc
BRD
- Blu Ray Disc
ALU-
Arithmetic logical unit
CPU-
Central Processing Unit
PDF
- Portable Document Format
USB
- Universal Serial Bus
VIRUS
- Vital Information Resource Under Siege
WIFI
- Wireless fidelity
ARPANET
- Advanced Research Projects Agency
Network
SQL
- Structured Query Language
XML : Extensible Markup
Language
WWW : World
Wide Web
CEO : Chief Executive
Officer
Friday, October 4, 2019
Monday, September 30, 2019
Wednesday, April 10, 2019
General Science for Competitive Exams
Free YouTube videos for Science Gk - Easy to learn
1. Science Gk : Physics lectures
1. Science Gk : Physics lectures
2. Science Gk : chemistry Lectures
3. Science Gk : Biology lecture & Quiz
Tuesday, April 9, 2019
RSCIT - BASIC COMPUTER COURSE FULL
RSCIT (Rajasthan State Certificate Course in Information Technology) is a basic computer course, designed to empower citizens with fundamental understanding of information technology (I.T) at affordable cost, acquiring essential skills to begin computing with confidence, be more productive at home and work and able to explore career opportunities globally.
Course Duration: 3 Months
RS-CIT Course -
- Introduction to Computers.
- Computer System
- Exploring your Computer
- Managing Your Computer
- MS-Word
- MS-Excel
- MS-PowerPoint
- Cyber Security and Awareness
- Introduction to Internet
- Internet Applications
- Digital Payments and Platforms
- Digital Services for Citizens of Rajasthan
- Accessing Citizen Services in Rajasthan
- Exploring Common Citizen Centric Services
- Working with Mobile Devices/ Smartphones
Course Fee- almost 2850/-
Free video course at youtube - 66 videos
Desktop Support Interview - Questions
1) What is active directory?
Active directory authorizes and authenticates all
users and computers in a window domain network, ensuring the security of the
computer and software. Through active directory various functions can be
managed like creating admin users, connecting to printers or external hard
drives.
2) What is DHCP and what it is used for?
DHCP stands for dynamic host configuration
protocol. It is used to allocate IP addresses to a large number of the computer
system in a network. It helps in
managing the large number of IP’s very easily.
3) What is scope and super scope?
Scope consists of an IP address like gateway IP,
subnet mask, DNS server IP. It can be used to communicate with the other PCs in
the network. The superscope becomes when you combine two or more scopes
together.
4) What is DNS?
DNS mean Domain Naming Service and it is used for
resolving IP addresses to name and names to IP address. DNS is like a
translator for computers, computers understand the number and not the alphabet.
For example, if we type like hotmail.com, the computer don’t understand this so
they use DNS which converts (hotmail.com) into (numbers) and then executes the
command.
5) What is forward and reverse lookup in DNS?
When we convert IP address into names is called
Reverse lookup, while converting names into IP address is called Forward
lookup.
6) What is ‘A’ record and what is ‘MX record’?
‘A’ record is also known as host record, and it has
ability to map the IP address by name. It is with this record that DNS can find
out the IP address of a name. While, ‘MX record’ also known as mail exchanger
record, by the help of ‘MX’ record, location of the mail server is
identified. The record is also found in
DNS.
7) What is IPCONFIG command?
IPCONFIG command is used to display the IP
information of the computer assigned like DNS IP address and gateway IP
address.
8) What would you use to connect two computers
without using switches?
Cross cables are used to connect two computers
without using switches.
9) What is a domain?
Domain is a set of computers which network
recognizes by the internet. It can be used by centrally administer computers.
It is created when you install active directory.
10) Tell me if your system is infected by a virus
how you will recover the data?
You need to re-install another system, latest
anti-virus software and an O.S with latest patches. Before you start your system, connect the
infected HDD as a secondary drive then scan and clean the infected hard drive.
Once done, you can copy the files into the system.
11) What is the operating system?
Operating system acts as an interpreter between
computer application and hardware. It
works as an user interface.
12) What are the types of operating system or O.S?
The two types of operating systems are:
NOS : Network Operating System. Examples of NOS-
Windows NT, 2000,2003
SOS : Simple Operating System. Examples of SOS –
Windows 95,98, ME
13) Explain about RAS server?
RAS means Remote Access Server. It allows operating the tool or information that
typically resides on a network or IT devices through combination of hardware
and software, for example connecting to printer or file. It is usually used for
mobile users who are in the network. It uses telephone line to provide
connectivity to its users. It can also connect two or more than two offices in
the network.
14) Explain about VPN server?
VPN means Virtual Private Network. It is a private
communications network often used by companies or organizations to communicate
confidentially over a public network.
This is used by the mobile users in the network.
15) What is the difference between RAS and VPN
server?
RAS is truly a local area connection between two
connections whereas, VPN is a local connection spread over large area.
16) What is
IAS server?
IAS means Internet Authentication Service. For many
types of network access like wireless, authenticating switch and remote access
dial-up they perform accounting and auditing, centralized connection
authentication and authorization.
17) What is Ping command?
Between two or more devices, to check the physical
IP connectivity Ping command is used.
18) What do you mean by clustering? What are the
benefits?
When one or more computers work together as a
single system by sharing their resources is known as clustering. The benefits of clustering are that it
reduces the load on one single system by sharing the load also it is used for
redundancy of the services.
19) What is a group?
Group is a collection of the user account. It
provides the simplified administration in the network.
20) What is a child domain?
A child domain is the member domain of Windows 2000
Active Directory.
21) What are the benefits of a child domain?
Benefits of child domain are:
Low network traffic
Low administrative overhead
Security boundary
22) What is OU?
OU means for Organizational Unit. It is a container
within Active Directory which can hold users, groups and computers. It is the smallest unit on which
administrator can assign group policy settings.
23) Explain group policy?
Group policy provides the stream line access to all
the users in the network, it can be used to define the users security and
networking policies. By group policy you
can keep control over certain function like not allowing the users to shut down
the system or using the control panel or running the command. Group policy is
applicable on active directory container like OU, site and Domain.
24) What is the difference between permission,
rights and policy?
“Policy” is assigned on active directory, like
site, domain and OU. The “Rights” are assign to users and groups, whereas, the
“Permission” is assigned for network resources like file, folders and printers.
25) What is DC and ADC stands for?
DC stands for domain controller and ADC stands for
additional domain controller.
ADC is a backup of domain controller. Domain
controller is a server that checks the security measures like user id,
password.
26) What is the difference between DC (Domain
controller) and ADC ( Additional Domain Controller)?
There is one difference between domain controller
and additional domain controller, on DC all five operational roles are
available while in ADC only three operational role is available.
27) What are the operational roles for DC (Domain
controller) and ADC ( Additional Domain Controller)?
Operational roles for DC (Domain controller) are:
Domain Naming Master
Schema Master
RID Master
PDC Emulator
Infrastructure Master
Operational roles for ADC (Additional Domain
Controller) are:
PDC Emulator
RID Master
Infrastructure Master
28) What is a “Default Gateway”?
Default gateway is the IP address of the router in
the network. In any case, if the users
wants to switch on to another network, or if they cannot locate their
particular network than their query will be forwarded to default gateway.
29) How you can take backup of emails in ms
outlook?
To take a back-up in the ms outlook, you have to go
in control panel. In control panel you have to go under mail option and then
open the data file, select personal folder and click on open folder. After
that, you have to copy .pst and have to paste it wherever you want the backup.
30) What is trusting domain and trusted domain?
In trusting domain resources are available, while
in trusted domain user’s account is available.
31) What is BUS speed?
The rate of communication speed between
microprocessor and RAM is known as BUS speed.
32) Name the Active Directory Partitions?
There are three types of active directory
partitions
Schema partition
Configuration partition
Domain partition
33) What is Fixboot?
Fixboot write a new partition boot sector on to the
system partition.
34) How many logical drive is it possible to fit on
to a physical disk?
The maximum number of the logical drive that can
fit on a physical disk is 24, while the extended partition can only have 23
logical drives.
35) What is B Router?
B router means Bridge router. To provide
communication between two or more different network like computer to computer
or computer to internet, B Router is used.
36) What is the major difference you can mention about
Gateway and Router?
Gateway works on different network architecture and
router works on same network architecture.
37) What is packet?
A packet is a logical grouping of information that
comprises a header which contains user data and location information.
38) What is SCSI?
SCSI stands for Small Computer System Interface. It
is a standard electronic interface that allows personal computers to
communicate with peripheral hardware such as disk drives, tape drives,
printers, CD-ROM drives. In “SCSI” the rate of data transmission is fast.
39) How many classes are there for “IP addresses”
and what are the ranges?
They are segregated into five classes
Class A
=== 0 -126 ( 127 is
reserved for loop back)
Class B
==== 128- 191
Class C
==== 192-223
Class D
==== 224-239
Class E
==== 240-255
40) Explain the term FIXMBR?
FIXMBR it is a repair tool. It repairs the Master
boot record of the Partition Boot Sector.
41) Explain the term SID?
SID stands for Security Identifier. Every computer object
has a unique ID which is known as SID.
42) What is the difference between incremental
backup and differential backup?
Differential backups will select only files that
are changed since the last backup.
Incremental backups will select only the data that
has changed since the last backup.
Example, On Sunday you do a backup of a 5 text file
each of 40 MB. Total backup size will be 200MB
On Monday you change 2 lines in just ONE of the
text file.
Under Differential backup, only the changed text
file will be backed up. Total backup size will be 40MB
Under Incremental backup, only the data
corresponding to the 2 lines will be backed up.
Total backup size will be just in bytes.
43) What is the difference between server OS and
desktop OS?
Server OS gives centralized administration for
users, shared resources and security while desktop OS gives access to only
local administration.
44) What is the difference between the MSI file and
.EXE file?
MSI (Microsoft Installer) allows install, uninstall
and repair the program with a single file, while .EXE file needs two files to
install and uninstall the software. Also,.EXE file is able to detect the
existing version of the software and give option to user to uninstall the
program while MSI will instruct the users to use the add and remove program in
control panel to remove the existing product first and then you can install the
new program.
45) What is BSOD? How do you troubleshoot it?
BSOD stands for blue screen of death. When there is
some fault in OS or hardware then Windows can’t run the program and gives a
blue screen with a code. To resolve this problem the best way is to reboot the
system. If it doesn’t work than boot the
system in the safe mode.
46) What is PTR (Program Troube Record) record?
This program record is used to check if the server
name is connected with the IP address, it is exactly opposite to the ‘A’
record. This record is basically created in reverse lookup zone, so it is also
known as Reverse DNS records or pointer record.
PTR record= Give me an IP address and I will give
you the name
‘A’ record= Give me the name and I will give you
the IP address
47) What is
reservation?
Basically, the term “Reservation” is used in DHCP
server. Some network equipment or computer system needs a specific IP address,
in such case we make a reservation in DHCP server for that particular computer
system. By creating reservation it gives
access to that particular IP address and at the same time prevents other computer
system to use that IP address.
48) What is SMTP server or POP server?
POP stands for post office protocol. It is
basically used for sending and receiving the mail.
SMTP stands for simple mail transfer protocol. It
is used for mail receiving purpose in the network.
49) What is RIS and why you use RIS?
RIS stands for remote installation services. It is
used to install image from a Window server to a new hardware. We use RIS because installing OS every time
using a CD would be more time-consuming.
50) What is “Bootloader”?
Bootloader facilitates the loading of operating
system on the system. It enables the booting process and gives OS option to the
users while starting the system.
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