Friday, 12 February 2016
What is Bus Network Topology
What is bus Network Topology definition, Bus Topology advantages and disadvantages
Bus Topology, LAN का एक arrangment होता है जिसमे की every node एक main cable और link से connected होती है जिसको की बस कहा जाता है | यह बहुत ही simple एवं reliable होती है | इसमे अगर एक node fail हो जाती है तो भी बाकि का पूरा नेटवर्क smooth चलता है |
Advantages of bus topology -
1. यह small network मे better perform करती है |
2. Easy to implement PCs or peripherals in a linear fashion.
3. Less expensive as less cable length required.
Disadvantages of bus topology-
1. अगर पूरा network down हो जाता है तो problem identify करना मुश्किल होता है
2. Individual device issues को troubleshoot करना मुश्किल होता है |
3. Not suitable for large networks.
4. Terminators are required for both ends of the main cable.
5. पूरी dependency main cable पर होती है अगर वो break down होती है तो पूरा नेटवर्क डाउन हो सकता है या split हो सकता है |
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Labels: In Hindi, Network Topology, Tech definition
What is Tree Topology in Networking
What is Tree Topology in Networking, what is tree topology advantages and disadvantages
What is Tree Topology in Networking - Tree Network Topology दो या ज्यादा star network के combination से बनता है | हर star network मे एक local area network होता है जिसमे की एक central computer या server होता है जिसके की बाकी सारी नोड्स connected होती है | Star Network का सेंट्रल computer main cable से कनेक्टेड होता है जिसको की bus कहते है | इस प्रकार tree network, bus एवं star network का combination होता है |
Advantages of Tree Topology -
1. जहाँ पर स्टार या बस टोपोलॉजी को individually implement नहीं किया जा सकता (for reasons related to scalability) वहां पर इस टेक्नोलॉजी को use करते हुए implment कर सकते है |
2. Easy network expansion possbile है |
3. पूरा network segments मे होने की वजह से network को easily manage एवं maintain किया जा सकता है |
4. नेटवर्क मे error detect करना एवं उसको correct करना easy है |
5. अगर पुरे network मे कोई एक segment मे error आती है तो दूसरा segment affect नहीं होता है |
Disadvantages of Tree Topology -
1. क्योकि Tree topology मे सभी नेटवर्क सेगमेंट bus cable पर dependent होते है तो अगर वो ब्रेक डाउन होती है तो पूरा network बंद हो सकता है |
2. जैंसे जैसे nodes बढ़ती जाती है मेंटेनेंस एवं परफॉरमेंस भी मुश्किल होती जाती है |
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Labels: In Hindi, Network Topology, Tech definition
Thursday, 11 February 2016
What is Star Network Topology Definition
What is Star Network Topology definition, List out Star topology advantages and disadvantages
Star Network सबसे ज्यादा common computer network topology है | Star network एक Local Area Network (LAN) होता है जिसमे सारी modes directly एक common central computer, hub or switch से कनेक्टेड होती है | नेटवर्क की हर नोड indirectly एक दूसरे से कनेक्टेड होती है | central network device एक server की जैसे एवं other कनेक्टेड peripheral devices क्लाइंट्स की जैसे work करती है |

Advantages of Star Topology -
1. Easy to add another device into network
2. Reliable Network - अगर नेटवर्क का एक कंप्यूटर fail हो जाता है तब भी network डाउन नहीं होता |
3. Easy centralized management of network
Disadvantage of Star Topology -
1. Expensive Installation - More cables required
2. सेंट्रल कंप्यूटर पर dependency की वजह से पूरा network की performance सेंट्रल डिवाइस पर depend हो जाती है अगर यह fail हो गया तो पूरा नेटवर्क डाउन हो सकता है |
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Labels: In Hindi, Network Topology, Tech definition
What is TPM Trusted Platform Module
What is a Trusted Platform Module (TPM) on a computer
What is a Trusted Platform Module (TPM) on a computer - TPM एक Microchip होती है जिसको encryption key से related basic security provide करने ले लिए design किया गया है | किसी भी desktop or portable computer के motherboard मे TPM को install किया जाता है एवं ये system से hardware bus की help से interact करती है |
वे कम्प्यूटर्स जिनमे TPM होता है वे cryptographic keys को create कर सकते है एवं उनको encrypt कर सकते है जिसको केवल TPM ही वापस decrypt कर सकता है| इस process को "wrapping" or "binding" a key कहते है जो की key को disclose नहीं होने देता | हर TPM मे एक master wrapping key store होती है जिसको की Storage Root Key (SRK) कहते है |
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Amit Kumar at
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Labels: In Hindi, Tech definition
Wednesday, 10 February 2016
User Datagram Protocol UDP Definition Hindi
User Datagram Protocol UDP Definition Hindi, What is UDP, what is UDP used for
User Datagram Protocol (UDP) Internet protocol suite फैमिली की protocol है एवं इसको David P. Reed ने 1980 मे डिज़ाइन किया था | UDP (User Datagram Protocol), Transmission Control Protocol (TCP) का एक alternative communications protocol होता है | In the Open Systems Interconnection (OSI) communication model, UDP, like TCP, is in Transport Layer.
UDP unreliable एवं non-guaranteed datagram delivery protocol भी कहलाता है क्योकि UDP जो भी packet send करता है उसकी receive का कोई acknowledge नहीं करता है इसलिए ही इस Protocol को gaming, voice and video कम्युनिकेशंस मे use करना ज्यादा ideal माना जाता है |
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Amit Kumar at
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How to Create Windows 10 bootable usb from iso
How to Create Windows 10 bootable USB from iso, how to make a bootable USB drive, free Microsoft software to create bootable USB
How to make a bootable USB drive - You can follow given steps for windows 7, 8, Vista and windows 10 -
Step1 -To make bootable USB drive, download Free Microsoft Software from - https://www.microsoft.com/en-us/download/windows-usb-dvd-download-tool
Step 2- Run setup file and install this -
Step 3 - Once installed, open software/tool from Program menu. Choose windows "iso" file and click next.
Step 4 - Insert USB Drive (make sure it has sufficient space) and select "USB Device" option (below)...
Step 5- It will take some time and will create windows USB bootable drive. You can use this USB bootable drive to install, repair window.
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Amit Kumar at
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Most Popular Windows Networking Commands
10 Most Popular Windows Networking Commands pdf, basic networking commands, windows command line system administration
1. Ipconfig - Internet Protocol configuration
Syntax
IPCONFIG /all Display full configuration information.
IPCONFIG /release [adapter] - Release the IP address for the specified adapter.
IPCONFIG /renew [adapter] - Renew the IP address for the specified adapter.
IPCONFIG /flushdns - Purge the DNS Resolver cache.
IPCONFIG /registerdns - Refresh all DHCP leases and re-register DNS names.
IPCONFIG /displaydns - Display the contents of the DNS Resolver Cache.
2. Nslookup - This command allow a user to resolve or look up an IP Address of domain or host on the network.
3. Nbtstat - Nbtstat can be used for NetBIOS over TCP/IP. Its primary design is to displays statistics and names information used by NetBIOS over TCP/IP (NetBT) connections.
4. Chkdsk - This command is short for Check Disk. This command checks file system for any error and repair file system error.
5. Ping - This command can be used to test network connection between two connected devices. It checks and verify that particular IP address exists.
6. SFC - SFC stands for system file checker. This scans and verifies system files and repair if files are corrupted.
7. Pathping - It can be used to identify network latency and network loss for each router and link in the path. This combines the functionality of PING and TRACERT.
8. Tracert - Traceroute is a command which show packet path. It determines the route to a destination by sending ICMP echo packets to the destination. So purpose of this utility is to show you the path your traffic takes when you are attempting to connect to another machine and to displays the delays that occur at each stop.
9. Route - It can be used to manually configure the routes in the routing table.
10. Getmac - Returns the media access control (MAC) address of network device.
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Labels: Windows Commands, Windows Tips and Tricks
Friday, 5 February 2016
What is Bitlocker in Windows 10 8 7
In Hindi -What is BitLocker in Windows 7 8 10, Recovery key, What is BitLocker Drive Encryption Service and How does it work
Bitlocker windows का एक security feature है जो की windows OS के सभी hard drive volume (C, D Drive..) मे store data को encrypt करके better data protection provide करता है | Bitlocker, TPM को use करते हुए windows OS पर save user data को lost, or stolen case मे ensure करता है की unauthorized user data को access न कर सके |
Bitlocker को TPM के बिना भी use कर सकते है | TPM के बिना use करने के लिए आपको Bitlocker के setup wizard का default behaviour, Group Policy के through (या configure BitLocker by using a script) change करना होगा | जब Bitlocker को TPM के बिना use करते है तो encrypt key USB flash drive मे save रहती है जो की कभी भी drive को unlock करने के लिए काम मे ली जा सकती है |
What is BitLocker Recovery Key -
BitLocker recovery key एक special key है जो की drive पर first time Bitlocker enable करने के वक़्त windows generate करता है | Key को कंप्यूटर की encrypted drive को access करने के लिए use करते है | Recovery Key को हमेशा safe रखना चाहिए | आप key को print करके, removable media मे रख सकते है |
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How to activate windows 10
How to activate windows 10 Pro Enterprise Home, Windows genuine product key activation windows 10
Activate Windows 10 after reinstalling windows 10 - अगर आप Windows 10 का free upgrade करते है या फिर windows store से नया windows 10 buy करते है तो आप आपकी डिवाइस के लिए digital entitlement होते है | Digital entitlement का मतलब आपकी device पर आप windows 10 product key enter किये बिना ही reinstall कर सकते है | Reinstallation के time अगर windows 10 product key enter करने का message देता है तो आप skip कर सकते है एवं बाद मे installation complete होने के बाद जब कंप्यूटर online जाता है तो windows automatically activate हो जायेगा |
How to activate windows 10 after windows 10 installation -
अगर Windows installation के बाद आपने अभी तक genunine windows key enter नहीं की है तो आपको desktop पर windows is not activated का मैसेज आएगा | To activate windows 10 follow steps -
Step 1 - Select the Start Start button and right click - > Choose system option - Then click Change Product key -

Step 2 - Select Change product key, and then type the 25-character product key.

Step 1 - Select the Start Start button and right click - > Choose system option - Then click Change Product key -
Step 2 - Select Change product key, and then type the 25-character product key.
This will activate your windows 10.
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Amit Kumar at
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