...stack. ZigBee applications run on top of ZigBee network, MAC and physical layers. A ZigBee network is capable of supporting up to 65,535 nodes. ZigBee network is used in many areas such as environmental monitoring systems, personal health care and consumer electronics. In ZigBee network the nodes can be mobile and fixed. 1.2 ZigBee Topologies The three ZigBee network device types are end device, router and coordinator. ZigBee support three kinds of topologies. These are star, tree and mesh. In all topologies the ZigBee network must contain one coordinator. The coordinator is responsible for allowing other devices to join the network, selecting transmission channels and for starting the ZigBee network. The coordinator can also route traffic and it’s the root node in tree and star topologies. ZigBee network supports single and multiple Personal Area Network (PAN). The routers only exist on tree and mesh topologies. The end devices in all ZigBee topologies can only communicate with their parent nodes; the router or coordinator. The three ZigBee topologies are described below. • Star – This is the most basic ZigBee topology. This topology usually consists of end devices and a coordinator. Routers can be part of the star topology, but they will simply function as end device and will not perform any routing functions. The central node is the coordinator and it handles all network traffic as well as providing ZigBee coordinator services. In the star topology all end devices send all...
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...Distributor (Van Operator) of Eveready situated in Nalbari Town. The Project commenced from the 1st May of 2006 to 30th June 2006. In order to make the data and findings easily understandable, efforts have been made to present the information in a simplified, lucid and organized manner. Wherever possible, tables and figures have been incorporated. Suggestions have been made on the basis of findings herein. It gives me immense practical exposure to the practical working patterns and the environment. I will be satisfied if the organization gets benefit from the study and the findings. 4. LIMITATION: 1. The survey was limited to some of the routes covered by the van of company. It also not possible to visit every retailers or wholesalers present in each routes as the van used to go to very interior places and where time is a major constraint. 2. Most of the dealers/retailers/wholesalers have an unprofessional attitude and were not willing provide information that were needed.. 3. Since the report is based on primary data and personal interview, occurrence of...
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...Hindawi Publishing Corporation Evidence-Based Complementary and Alternative Medicine Volume 2014, Article ID 369204, 32 pages http://dx.doi.org/10.1155/2014/369204 Review Article Jatropha gossypiifolia L. (Euphorbiaceae): A Review of Traditional Uses, Phytochemistry, Pharmacology, and Toxicology of This Medicinal Plant Juliana Félix-Silva,1 Raquel Brandt Giordani,2 Arnóbio Antonio da Silva-Jr,1 Silvana Maria Zucolotto,2 and Matheus de Freitas Fernandes-Pedrosa1 1 Laborat´rio de Tecnologia & Biotecnologia Farmacˆutica (TecBioFar), Programa de P´ s-graduacao em Ciˆncias o e o ¸˜ e Farmacˆuticas (PPgCF), Universidade Federal do Rio Grande do Norte (UFRN), Rua General Cordeiro de Farias, s/n, e Petr´ polis, 59012-570 Natal, RN, Brazil o 2 Laborat´rio de Farmacognosia, Departamento de Farm´ cia, Universidade Federal do Rio Grande do Norte (UFRN), o a Rua General Cordeiro de Farias, s/n, Petr´ polis, 59012-570 Natal, RN, Brazil o Correspondence should be addressed to Matheus de Freitas Fernandes-Pedrosa; mpedrosa31@uol.com.br Received 24 February 2014; Revised 1 May 2014; Accepted 1 May 2014; Published 5 June 2014 Academic Editor: Shi-Biao Wu Copyright © 2014 Juliana F´lix-Silva et al. This is an open access article distributed under the Creative Commons Attribution e License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Jatropha gossypiifolia L. (Euphorbiaceae), widely known as “bellyache bush,”...
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...Browse: Home / 2012 / July / VMWare interview questions and answers -Networking Menu Skip to content * About * Contact Me * Privacy Policy * Table of Contents VMware Arena Menu Skip to content * Home * Free Tools * vSphere Links * Interview questions * Deep-Dives Top of Form Search Bottom of Form VMWare interview questions and answers -Networking Posted by Mohammed Raffic on July 15, 2012 in Interview questions, Networking | 48 Views | 4 Responses Download Now and Complete your End to End P2v Migrations using VMware Arena’s ”P2V ADMIN ISO“ What is Service Console? The service console is developed based up on Redhat Linux Operating system, it is used to manage the VMKernel What are the basic commands to troubleshoot connectivity between vSphere Client /vCenter to ESX server? service mgmt-vmware restart (restarts host agent(vmware-hostd) on vmware esx server) service vmware-vpxa restrat (restarts Vcenter agent service) service network restart (restarts management networks on ESX) What is vCenter Agent? VC agent is an agent installed on ESX server which enables communication between VC and ESX server. This Agent will be installed on ESX/ESXi will be done when you try to add the ESx host in Vcenter. What is the command used to restart SSH, NTP & Vmware Web access? Service sshd restart Service ntpd restrat Service vmware-webaccess restart What are the types of Ports groups in ESX/ESXi? There are 3 types of port...
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...CCNA Notes Introduction Cisco offers two options for obtaining the CCNA certification: Pass Exam 640-802 OR Pass Exam 640-822 AND Exam 640-816 While you can use these notes to prepare for either exam, the notes are geared towards passing the single exam. I recommend you study all of the material and take the single exam option rather than taking two exams. Cisco Device Icons The following table lists the specific icons Cisco uses to represent network devices and connections. Represents Icon Hub Bridge Switch Router Access point Network cloud Ethernet connection Serial Line connection Wireless connection Virtual Circuit The OSI Model As you study this section, answer the following questions: What is the OSI model and why is it important in understanding networking? How does the third OSI model layer relate to administering routers? Which OSI model layer is concerned with MAC addresses? What protocols correspond to the Presentation and Session layers? What is the difference between the TCP and UDP protocols? What is the EIA/TIA 232 protocol concerned with? This section covers the following exam objectives: 103. Use the OSI and TCP/IP models and their associated protocols to explain how data flows in a network 105. Describe the purpose and basic operation of the protocols in the OSI and TCP models 110. Identify and correct common network problems at layers 1, 2, 3 and 7 using a layered model approach ...
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...LESSON 2 BASIC COMMANDS IN LINUX AND WINDOWS LESSON 2 – BASIC COMMANDS IN LINUX AND WINDOWS “License for Use” Information The following lessons and workbooks are open and publicly available under the following terms and conditions of ISECOM: All works in the Hacker Highschool project are provided for non-commercial use with elementary school students, junior high school students, and high school students whether in a public institution, private institution, or a part of home-schooling. These materials may not be reproduced for sale in any form. The provision of any class, course, training, or camp with these materials for which a fee is charged is expressly forbidden without a license including college classes, university classes, trade-school classes, summer or computer camps, and similar. To purchase a license, visit the LICENSE section of the Hacker Highschool web page at www.hackerhighschool.org/license. The HHS Project is a learning tool and as with any learning tool, the instruction is the influence of the instructor and not the tool. ISECOM cannot accept responsibility for how any information herein is applied or abused. The HHS Project is an open community effort and if you find value in this project, we do ask you support us through the purchase of a license, a donation, or sponsorship. All works copyright ISECOM, 2004. 2 LESSON 2 – BASIC COMMANDS IN LINUX AND WINDOWS Table of Contents “License for Use” Information....................
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...Linux Advanced Routing & Traffic Control HOWTO Bert Hubert Netherlabs BV Gregory Maxwell Remco van Mook Martijn van Oosterhout Paul B Schroeder Jasper Spaans Revision History Revision 1.1 DocBook Edition 2002−07−22 A very hands−on approach to iproute2, traffic shaping and a bit of netfilter. Linux Advanced Routing & Traffic Control HOWTO Table of Contents Chapter 1. Dedication.........................................................................................................................................1 Chapter 2. Introduction ......................................................................................................................................2 2.1. Disclaimer & License.......................................................................................................................2 2.2. Prior knowledge................................................................................................................................2 2.3. What Linux can do for you...............................................................................................................3 2.4. Housekeeping notes..........................................................................................................................3 2.5. Access, CVS & submitting updates..................................................................................................3 2.6. Mailing list..............................................
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...Sarah Richey Introduction to Networks & Data Comm Cynthia Thomas/James McGuffee Internet Objectives 3. Describe how ISPs work together to create the Internet core. Internet Service Providers (ISPs) work together to create the internet core by creating connections to each other. First, individual ISPs create their own points of presence (POP). These POP can be geographic or global depending on the ISP. Then the ISP creates connections to their own POP creating their own TCP/IP network. Finally the individual ISPs create connections between each other’s networks. The connections between the ISPs create the internet core. Peering agreements are made between the ISPs which allows packets to be sent to any host connected to the internet using any ISP. 4. Describe the Layer 1 and Layer 2 features used when connecting to an ISP using analog, DSL and cable modems. Layer 1 & 2 using analog – A local loop is used between the telco central office and the customer (home, business, etc.). At each end of the local loop an analog modem is used. The modems covert the digital signal to analog to send across the loop, and once it arrives to the analog modem at the other end it is converted back into a digital signal. A unique phone number is assigned to a customer by the telco. When the internet is being accessed through an analog local loop you cannot make a phone call. Using analog means you can be on the phone or you can be on the internet, but you cannot do both at the...
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...switches. Keep this generic, as it will be implemented on all switches in the xACME educational topology. Lastly, include the configuration steps for implementing device passwords on both console port (out-of-band communications) and VTY (Telnet/in-band communications). All passwords should be encrypted. Required Implementation: Configure all devices hostnames as per the xACME topology Configure encrypted passwords (console and Telnet ports) on all devices Configure MOTD and Login banner for one of the switches Create Server VLANS, Faculty VLANS, Instructional VLANS and Administrative VLANs on all switches Assign ports to VLANs on all switches Assign mode of access of VLANS Configure trunks between switches Make Switch1 as primary root bridge for all VLANs Configure security to protect from bogus BPDUs Configure Hostname: 1. Enable 2. Router# configure terminal 3. Router(config)#hostname (SpringfieldSw1, SpringfieldSw2, SpringfieldSw3, SpringfieldSw4) 4. End 5. Copy run start Creating Passwords: 1. Conf t 2. Enable password Cisco (or some other password) 3. Enable secret Cisco (or some other password) 4. End 5. Copy run start Create Console Password: 1. Conf t 2. Line con 0 3. Password “cisco” 4. Login 5. End 6. Copy run start Create Telnet Password: 1. Conf t 2. Line vty 0 4 3. Password “cisco” 4. Login 5. End 6. Copy run start...
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...Learn the basics of Cisco IOS commands. Configure static routing paths on Cisco router Learn the Linux tools to test route paths 2. Network Diagram Host1 fa0/1 R1 s0/1/0 s0/1/0 R2 s0/1/1 R3 s0/1/1 Host2 fa0/0 192.168.2.10 192.168.1.10 3. Lab Configuration Procedure Preliminary ‐ IP address Assignment Machine Host1 Host2 R1 R2 R3 You will be shown steps later to configure these addresses. Make sure that you do not change configuration of interfaces other than the ones mentioned above. Step 1: Make a reservation for this lab like you did in the preliminary lab. Step 2: When it’s your reserved time slot, connect to the DL Pod as you did in the preliminary lab. Interface eth1 eth1 fa0/1 s0/1/0 s0/1/0 s0/1/1 fa0/0 s0/1/1 IP Address (Mask) 192.168.1.10/24 192.168.2.10/24 192.168.1.1/24 192.168.10.1/24 192.168.10.2/24 192.168.20.2/24 192.168.2.3/24 192.168.20.3/24 Summer II 2012 TDC463 – lab01 Page 1 of 4 Step 3: Configure the IP addresses on the routers Remember that you need to enter the following commands to get into the configuration mode: enable conf term R1 int fa0/1 ip address 192.168.1.1 255.255.255.0 no shutdown int s0/1/0 ip address 192.168.10.1 255.255.255.0 no shutdown exit Step 4: Configure the Static Routes. R1 ip route 192.168.20.0 255.255.255.0 192.168.10.2 ip route 192.168.2.0 255.255.255.0 192.168.10.2 exit R2 int s0/1/0 ip address 192.168.10.2 255.255.255.0 no shutdown int...
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...that the device or network can send packets between itself and the ISP. Matching a.|firewall|f.|private IP address| b.|DMZ|g.|default route| c.|Tier 1 ISP|h.|NAT table| d.|head end|i.|root server| e.|public IP address| ____ 3. A part of a company’s TCP/IP network that hosts outside the network can access, with less restrictive security rules as compared to other hosts inside the company. ____ 4. An Ip address in the unicast class A, B, and C range that also sits inside the range of addresses IANA is allowed to assign to a company to use as globally unique IP addresses in the public Internet. ____ 5. An IP address in a small set of specific class A, B, and C networks as defined in RFC 1918. ____ 6. A term that refers to the facility where a cable company keeps the equipment that connects to one end of the HFC cable plant, with the other end sitting in the cable company customer’s homes, apartments, and offices. ____ 7. A special type of DNS server, located in the Internet, that keeps lists of trustworthy DNS servers for the DNS subdomains of the world. ____ 8. A list of NAT table entries, maintained by the NAT function on a device. ____ 9. In a router, a concept in which the router has a special route so that when a router tries to route a packet, but the packet’s destination does not match any other route. ____ 10. A networking function, implemented either as a standalone device or as part of an integrated device, that performs security functions...
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...water route from the Mississippi River to the Pacific Ocean. Lewis’s heart was pounding after being given the responsibility of leading his crew to uncharted territory. Lewis was scared , but he knew he had to get a group together fast he got 31 people to explore with him to find a water route then they called the group “Corps of Discovery!” I was a very long , tiring and scary journey. Then Lewis’s heart was pounding with excitement he was staring at the most exciting thing ever he was the first white man to see Gravity Falls. Lewis was excited , but he knew on the other hand he was going to have to find a way around it and it was going to take a long time , because...
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...Mexicans use coyotes. In this case, coyotes are not animals but are people who get pay about a thousand dollars for transportation to the United States. The illegal drug market in the United States is one of the most profitable in the world. As such, it attracts the most ruthless, sophisticated, and aggressive drug traffickers. The most common way the trafficker’s use is tractor- trailers and migrants on foot. Diverse groups traffic and distribute illegal drugs, but the most powerful trafficker is Joaquin Guzman, linked to the Sinaloa Cartel, who goes by the nickname El Chapo. This criminal groups operating from South America smuggle cocaine and heroin into the United States using variety of routes, including land routes through Mexico, maritime routes along Mexico's east and west coasts, sea routes through the Caribbean, and international air corridors. Furthermore, criminal groups operating from neighboring Mexico smuggle cocaine, heroin, methamphetamine, amphetamine, and marijuana into the United States. The drug...
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...Addressing and Subnets * 2-1 IP Addresses – Composition, Types and Classes * 2-2 Private and Public IP addresses * 2-3 Subnetting * 2-4 Variable Length Subnet Masks (VLSM) * 2-5 Route Summarization * 2-6 Troubleshooting IP Addressing * Chapter 3 Introduction to Cisco Routers, Switches and IOS * 3-1 Introduction to Cisco Routers, Switches, IOS & the Boot Process * 3-2 Using the Command-Line Interface (CLI) * 3-3 Basic Configuration of Router and Switches * 3-4 Configuring Router Interfaces * 3-5 Gathering Information and Verifying Configuration * 3-6 Configuring DNS & DHCP * 3-7 Saving, Erasing, Restoring and Backing up Configuration & IOS File * 3-8 Password Recovery on a Cisco Router * 3-9 Cisco Discovery Protocol (CDP) * 3-10 Using Telnet on IOS * 3-11 CCNA Lab #1 * Chapter 4 Introduction to IP Routing * 4-1 Understanding IP Routing * 4-2 Static, Default and Dynamic Routing * 4-3 Administrative Distance and Routing Metrics * 4-4 Classes of Routing Protocols * 4-5 Routing Loops * 4-6 Route Redistribution * 4-7 Static and Default Route Lab * Chapter 5 Routing Protocols * 5-1 RIPv1 & RIPv2 * 5-2 Configuring RIPv1 & RIPv2 * 5-3 Verifying and Troubleshooting RIP * 5-4 Enhanced Interior Gateway Routing...
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...Treiman, R., Clifton, C., Jr, Meyer, A. S., & Wurm, L. H. (2003). Language comprehension and production. Comprehensive Handbook of Psychology, Volume 4: Experimental Psychology. New York: John Wiley & Sons, Inc. Pages 527-548. Copyright John Wiley & Sons. Psycholinguistics: Language comprehension and production Rebecca Treiman Wayne State University Charles Clifton, Jr. University of Massachusetts Antje S. Meyer University of Birmingham Lee H. Wurm Wayne State University Acknowledgments: Preparation of this chapter was supported by NSF Grant SBR-9807736 to R.T. and NIH Grant HD18708 to the University of Massachusetts. To appear in A.F. Healy & R.W. Proctor (Eds.), Comprehensive handbook of psychology, Vol. 4: Experimental Psychology. New York: Wiley. Treiman et al., Psycholinguistics, 2 Introduction Language comprehension Spoken word recognition Printed word recognition The mental lexicon Comprehension of sentences and discourse Phenomena common to reading and listening comprehension Phenomena specific to the comprehension of spoken language Phenomena specific to the comprehension of written language Language production Access to single words in spoken language production Generation of sentences in spoken language production Written language production Conclusions INTRODUCTION Psychologists have long been interested in language, but psycholinguistics...
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