Jan 102014

CertExams.com released cram notes for Cisco CCENT 100-101. The cheat sheets consist of about 30 pages covering the following topics:

OSI (short for Open Systems Interface) and TCP/IP Cisco IOS Fundamentals, IPv4 Addressing, Subnetting and Variable Length Subnet Masks (VLSM), Routing Protocols IGRP, EIGRP, RIP 2, ng;, OSPF, and others, Routed Protocols: IP, IPX, etc., Frame Relay, Access-Lists: Standard, Extended, and Named Different Types of Network Address Translaions (NAT), Router/Switch Configuration Commands, IPv6 Addressing, Switching: VLANs and VTP, Switching: Spanning Tree Protocol (STP), Router/Switch Troubleshooting Commands, and others.

The notes, suitable for candidates preparing for CCENT (Short for Cisco Certified Entry Network Technician), and ICND2 (Interconntecting Cisco Network Devices)., is prepared  to serve as a last minute preparation tool for candidates preparing for the exam. Feedback may be emailed to cs at certexams.com

Checkout Cisco CCENT/ CCNA Cheat Sheets home page

Available products –

Network Simulators: CCNA NetSim, CCENT NetSim, Juniper NetSim, and others

Exam Simulators: CCNA Exam Sim, Cisco CCENT Exam Sim, ICND2, CCNP Route CCNP Switch, and others.

About CCENT Certification: CCENT is offered by Cisco Systems on successful completion of Cisco Certified Entry Network Technician exam. The exam covers configuring and troubleshooting small networks using Cisco switches and routers, running Cisco IOS. CCENT is an entry level certification followed by much popular CCNA certification.

Disclaimer: CertExams.com is not associated or affiliated with Cisco or any other company. CertExams.com is a group website of Anand Software and Training.

Jan 092014


The figure shows the GSLV D5 launch just a few seconds after ignition. GSLV is a three stage vehicle, 49 m tall with 414 t lift off weight. It is capable of placing satellites weighing 2-2.5 tons into geosynchronous transfer orbit (GTO)

On January 5, 2014, India successfully launched it’s rocket to put a 2000+ KG satellite in geosynchronous orbit. So, what is so special about it? To answer this question, we need to go back in time. The entire space program had started in early 80′ where the actual planning took place. India contemplated to achieve mastery over space technology in four stages over a period of 15 years. The various steps involved are:

  1. SLV (Simple firing of a Satellite Launch Vehicle)
  2. ASLV (Short for Augmented Satellite launch Vehicle)
  3. PSLV (Short for Polar Satellite launch Vehicle) – objective is to put sun synchronous satellites in orbit
  4. finally, GSLV (Short for GeoSynchronous Satellite Launch Vehicle) – to put communication satellites in a Earch Stationary Orbit.

We had developed and achieved self sufficiency in the first 3 categories of satellites fairly quickly, and almost as per the planned schedules. India had sought the help of USSR (then) in mastering the GSLV technology, as it requires putting a satellite in an orbit that is 36,000 KM above earth, and requires a technology, known as Cryogenic Engine Technology and uses liquid Orxygen and liquid Hydrogen at temperatures far below normal temperatures. Russia (Formerly USSR) agreed to initially supply a few engines and then deliver the technology (technology transfer) in stages. However, after supplying 2 or 3 engines, Russia gone back on their promise under extreme pressure from other developed nations. Under these circumstances, coupled with sanctions from USA and other countries against supply of any space related components or technology to India, India was left all alone with very few friends to rely on.

The success is not without failures. Several missions with indigenous and imported engines had failed, with many people doubting whether India could achieve this mile stone at all! Originally, India’s self reliance in launching GSLV rocket was supposed to be achieved by 1995. However, given the circumstances, the indigenous development had been delayed significantly due to failures in perfecting the Cryo engine technology.

Hearty congratulations to Dr. K. Radhakrishnan and his team for successful launch of GSLV D5. India is looking forward to many more such achievements from our distinguished scientists and technocrats!

Visit official website here: http://www.isro.org


Jan 082014

CertExams.com has recently released a thoroughly revised version of Cisco CCENT network simulator. For candidates aspiring for CCENT certification, CertExams.com CCENT netsim provides a good hands on practice. The advantages of using CCENT NetSim include the following:

  • – Several CCENT Lab exercises for hands-on practice.
  • – Router and multi layer switch simulator
  • – Simulate Cisco® IOS routers and switches
  • – Support for 200+ router and switch commands
  • – Labs for 3600, 2950, and other switches included
  • – Detailed Lab manual and help files
  • – Network designer with drag and drop feature for inserting devices and connectors. GUI based device configurator.

Support short form commands. Enter short form commands in IOS simulator just like in actual router/switch.

The exam objectives covered by CCENT certification include the following:

  • 1. Operation of IP Data Networks
  • 2. LAN Switching Technologies – Configure VLAN and trunking networks using Cisco switches.
  • 3. IP addressing (IPv4 / IPv6) – Implement an IP addressing scheme and IP
    Services to meet network requirements in a medium-size Enterprise branch office network.
  • 4. IP Routing Technologies – Configure, verify, and troubleshoot basic router operation and routing on Cisco devices
  • 5. IP Services – Configure and verify DHCP (IOS Router), Access Control Lists, and Network Address Translation.
  • 6. Network Device Security – Configure and verify Switch Port Security features. Configure and verify network device security features such as physical security, password security, and authentication.
  • 7. Troubleshooting – Resolve VLAN and trunking problems in Cisco switches. Troubleshoot ACL issues and Resolve Layer 1 problems.

Other simulators offered by CertExams.com include the following:

CCENT Certification is awarded by Cisco Systems on successful completion of qualifying exam(s). CCENT is intended for candidates who have just started working on Cisco ruoters, switches, and other networking devices.  Visit CCENT Network Simulator page at http://routersimulator.certexams.com/ccent-network-simulator-designer.html

You may also be interested in CCENT 100-101 Test Simulator at http://www.certexams.com/cisco/ccna/exam-details.htm

Disclaimer: CertExams.com is neither associated nor affiliated with Cisco Systems(R) or any other Company. All trademarks are duly recognized.