KENYA INSTITUTE OF MANAGEMENT DIPLOMA COURSE IN MANAGEMENT MANAGEMENT INFORMATION SYSTEMS (MIS) NOTES 0 MANAGEMENT INFORMATION SYSTEM This is a system that converts data from internal & external sources into information in an appropriate form to managers at all levels in all functions to enable them make timely and effective decisions‚ plans‚ directing and controlling the activities in which they are responsible for. Elements of Management Information System They Include: Information;
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Layer 2 switching is that it can not be scaled effectively. Switches must forward broadcast traffic to all ports‚ causing large switched networks to become a large broadcast domain. In addition‚ STP can have a slow convergence time when the switch topology changes. Layer 2 switching alone can not provide an effective‚ scalable network design. Layer 2 Switches Functions: Source MAC Address learning Filtering/ forwarding Loop avoidance Frame Switching Modes Store and forward Cut through Fast
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ZIMBABWE SCHOOL EXAMINATIONS COUNCIL ZIMBABWE GENERAL CERTIFICATE OF EDUCATION (ZGCE) Ordinary Level Syllabus COMPUTER STUDIES (7014) (EXAMINATION PERIOD 2014 to 2017) ***Available in the November Examinations only and not available to private candidates. 1 TABLE OF CONTENTS Contents Page 2 2 2 3 6 8 8 9 15 19 22 23 24 29 29 30 31 32 33 Preamble ….……………………………………………………………………………………………………………................................. Aims ………………………………………………………………………………………………………………………………………. .. Assessment
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Network Characteristics Each store has a 100 Base T Ethernet connection on a bus topology that connects all equipment to the Internet. Each store also has two routers that are behind firewalls‚ one that has a dedicated OC 1 SONET connection and the other router is a 25Mbps connection to the Internet. Del Mar and Encinitas stores have a POS server and an HP Blade Server 3000 system that runs on both UNIX OS and LAN OS. The blade servers that are used in these stores are communications‚ email‚ storage
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enterprise networks • Large public networks • Hybrid combinations of both private and public networks ATM technology is rapidly being implemented in these networking environments to enable the seamless interconnection of local area networks (LANs) and wide area networks (WANs). Furthermore‚ ATM technology enables the switching and transport of multiple traffic types at comparatively high speeds in a single switching fabric. 2- ATM Benefits: ATM technology offers the following primary
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bandwidth is not consumed. My plan will ensure that the network is not flooded with packets‚ and that members of the same VLAN can be located in different buildings or cities. The benefit of creating a VLAN VLAN offers many benefits not found in most LANs. Performance enhancers broadcast data packets that are targeted and processed by all devices on a network‚ but only specific work stations will exist on a domain. VLAN eliminates the need for routers with will permit the network to operate at lower
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device names from network management tools. Plan for the development of an addressing and naming model for ten departments The company consists of ten departments having 1‚000-employee. For 10 departments we have to design ten LANs with equal geography separation. Each LAN can contain more than 50 computers. The IT department of Corporation outlines a plan for
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Access - method of communicating with Physical medium Logical Topology - eg Star shaped "ring" in TR error detection LLC - Logical Link Control Optional Flow control with stop/start codes error correction Destination Service Access Point (DSAP) and Source SAP allow upper-layers to work over different LANs by providing comms between Network & data/physical layers regardless of physical/logical actually used Physical Physical topology DTE - Data terminal equipment = router etc. DCE - Data circuit
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is a brand originally licensed by the Wi-Fi Alliance to describe the underlying technology of wireless local area networks (WLAN) based on the IEEE 802.11 specifications. It was developed to be used for mobile computing devices‚ such as laptops‚ in LANs‚ Internet and VoIP phone access‚ gaming‚ and basic connectivity of consumer electronics such as televisions and DVD players‚ or digital cameras and used by cars in highways. A person with a Wi-Fi enabled device such as a computer
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DMZ? * Extranet – uses internet and web tech to connect intranets to business partners. Supply chain systems. * DMZ – demilitarized zone‚ are of network that’s separate from the organizations LAN. Between intra and extra. * Interorganizational system? Types of IOS? * IOS – Electronic funds transfer (EFT). Electronic data interchange (EDI). XML. Radio frequency identification (RFID) LECTURE 9 – E-COMMERCE * Network externalities
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