Networking hardware

CHAPTER 1 1. INTRODUCTION 1.1 WIRELESS SENSOR NETWORK (WSN): Wi-Fi sensor networks (WSN), once in a while called wireless tool and actuator networks (WSAN), are spatially disbursed autonomous sensors to monitor bodily or environmental situations, which include temperature, sound, pressure, and so forth. and to cooperatively pass their expertise through the network to a major location. The extra brand new networks are bi-directional, additionally sanctioning control of device activity. The…

compares various wireless networking technologies which can be used for industrial automation and sensing. Among all these technologies, special emphasis is given on Zigbee. Zigbee is a technology known for its low power consumption, low data rates, and self-healing reliable networks, which makes it very efficient for industrial applications. The layer by layer protocol stack architecture of Zigbee illustrates these advantageous features. Zigbee is used for automation and networking purposes in…

Even though VANET is considered as a type of MANET, it has its own particular features that make it different from MANET. These characteristics include: 1. Each vehicle is turned into a router or wireless node with the capability to connect and become a part of a network in the range of approximately 100-300m. 2. Network topology changes as the vehicles fall out of range or new vehicles join the network, thus making the network density vary according to traffic density. For example, network…

1) Eavesdropping: It can be defined as secretly listening to the private conversation of others without their consent. Here an attacker can choose to passively eavesdrop on the network communication and steal the data. Through passive eavesdropping attackers apparently eliminate their presence in the network and make such attacks difficult to detect. The goal of such an attack is to violate the confidentiality of the communications by intercepting the network and sniffing or listening to…

The interviewee, named Jay Shen, is a software engineer with more than 2-year experiences of developing software application in Amazon.com, Inc. In his viewpoint, a successful software engineer should have learning passion, good communication and creativity. First, Jay mentions that the learning ability is obligatory for a successful software engineer because today is an age in which the technology is growing with a high speed. New algorithms, improved methods are introduced every day.…

Case Study: New College, University of Oxford New College simplifies wireless access while increasing visibility and security New College was looking for a new security automation and orchestration solution. The IT office at New College realized that although their homegrown authentication and registration solution had succeeded for many years, new security measures were needed because of student-driven demand for campus-wide wireless and wired connectivity. Among other capabilities, New College…

Adair, E, and Peterson, R. (2012). Biological Effects of Radiofrequency- Microwave radiation, IEEE Transactions on microwave theory and techniques, Vol 54 (3) Sources of radiations in the modern world include mobile phones, radar installations, transmission pillars, and microwave heaters. These technological developments have made life faster and convenient. The ability to save time had greatly enhanced human capital capacity to be more productive. Adair and Peterson studied different forms of…

Introduction I. Vulnerability Assessments (Or “What do we have of value that must be protected?”) A. The Company Network Figure 1: Existing Company Network 1. Physical Devices a) The NETGEAR MR814 Wireless Router (all versions) has two key vulnerabilities. First, the MR814 only supports Wired Equivalent Privacy (WEP) encryption to secure traffic sent over the wireless network [1]. WEP has numerous, well documented vulnerabilities and exploits. In its standard implementation, WEP can be…

The HC-05 is a serial Bluetooth module for transparent wireless serial communication. It communicates with the microcontroller using serial port [5]. It operates in the 2.4 – 2.485 GHz frequency band The HC-05 has 6 Pins. Table 3.1 Pin description of HC06 Pin Description Key to toggle between data mode and command mode, if set to high, it works as command mode, but default is data mode. RXD Receive data serially (received data will be transmitted wirelessly by Bluetooth module). TXD Transmit…

Verizon’s Vision, Mission, and Strategic Objectives: Verizon Wireless (NYSE: VZ, www.verizon.com) is the largest provider of wireless products and services in the United States of America with 114.2 million subscribers [1]. Verizon Wireless was founded on June 30, 2000 when telecommunications giants Bell Atlantic Corp. and GTE Corp completed a nearly 65 billion dollar merger and are currently headquartered in Basking Ridge, NJ [2]. Verizon Wireless currently employs over 162,000 employees…