What is Piggy backing? A technique called piggybacking is used to improve the efficiency of the bidirectional protocols. When a frame is carrying data from A to b, it can also carry control information about arrived (or lost) frames from B; when a frame is carrying data from B to a, it can also carry control information about the arrived (or lost) frames. What are the two types of transmission technology available? (i) Broadcast and (ii) point-to-point. Every line has an upper limit and a lower limit on the frequency of signals it can carry. This limited range is called the bandwidth.
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What is round Trip Time? The duration of learning time it takes to send a message from one end of a network to the other and back, is called rtt. List the layers of osi. Data link layer. Which layers are network support layers? Data link layer and. Which layers are user support layers? Presentation layer and. In networking and in other areas, a task is often begun before the previous task has ended. This is known as pipelining.
What is a node? A network can consist of two or more computers directly connected by some physical medium such as coaxial cable or optical fiber. Such a physical medium is called as Links and the computer it connects is called as Nodes. What is a gateway or router? A node that is connected to two or more networks is commonly called as router or Gateway. It generally forwards message from one salon network to another. Name the factors that affect the performance of the network? Mber of Users. Type of transmission medium.
He was a pioneer in the use of multi-level finite state automata in the implementation of bulletproof real-time control software systems. return to: Company background, go to: Top of Page. A network is a set of devices connected by physical media links. A network is recursively is a connection of two or summary more supermarket nodes by a physical link or two or more networks connected by one or more nodes. A protocol is a set of rules that govern all aspects of information communication. What is a link? At the lowest level, a network can consist of two or more computers directly connected by some physical medium such as coaxial cable or optical fiber. Such a physical medium is called as Link.
He has pic experience in a wide variety of aircraft, including Aero commander 685 560; Air Tractor 401; Cessna 340, 310, 210, 182, 172, 170, 152; North American at-6; Piper pa-34, 32, 28, 24, 23, 18; Schweitzer sgs-1-36, sgs-2-33, -300CB; as well as test-flight and. Prior to starting epi, jack spent thirty one years doing conceptualization, design and development of complex mechanical and electronic systems. Those activities required a comprehensive understanding of a wide range of disciplines, including mechanical and electrical design and analysis, computer hardware and systems, software science, as well as strong skills in communication and organization. This is a summary of those activities: he began his engineering career at United Aircraft Corporation, where he designed hydromechanical control system components for turbine engine controls. He went on to do significant design and research work on the first generation of Full Authority digital Engine controllers (fadec). He also taught night classes at a small college in New England. As a systems engineer with various companies including Litton Industries, Scan-Optics and Transaction Technology Inc (a division of CitiCorp he designed and developed several complex real-time computer operating systems, control systems, and data communication networking systems, including subsystems for one of the first on-line banking. As an independent consultant, he worked under contract to various aerospace and technology companies including trw space systems, garrett airesearch, sdc/Burroughs, rockwell International, magnavox Research Labs and August Aerospace systems. He was responsible for the design and development of sections of complex computer-based systems (mostly classified) including gps, nuclear Systems, missile Flight Control Systems, data Acquisition Systems, and Satellite communication Networking Systems.
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In 1994, for the purpose of developing and producing high-performance vehicle propulsion systems. He is, and has been from the outset, the ceo, cfo, engineer, machinist, welder, mechanic, purchasing manager, webmaster, accountant, statement and janitor. Jack was a dean's list student in the Electrical Engineering program at the us air Force Academy. Later, he earned Bachelor of Mechanical Engineering ( cum laude ) and Master of Science degrees ( summa cum laude ) from civilian universities. Jack has been actively involved in piston engine development since the early 50s, has configured, built and modified successful engines for a wide variety of specialized applications and winning race cars, and has designed, from scratch, two very successful clean-sheet engines. Since the founding of epi, inc., he has been responsible for the design and development of liquid-cooled aircraft engines, gearboxes, and accessory drive plan units for various fixed-wing and helicopter applications.
His technical articles published. Race engine technology magazine have received acclaim from knowledgeable experts at the highest levels of motorsport. Beyond engineering, he is an accomplished machinist, welder, mechanic, commercial pilot, and has done development, modification and overhaul work on certified (Lycoming, continental, Orenda) aircraft engines. In his younger days, he was a winning driver in a variety of automobile racing categories including rear-engine formula cars, sports cars, midgets and stock cars, and has won several championships. Jack currently holds a commercial pilot rating in multi-engine, single engine, and glider aircraft, and a private helicopter rating. He has previously been a certified flight instructor for single and multi-engine aircraft, and has worked as a part 135 charter pilot, corporate pilot, glider-tow pilot, ferry pilot, test-pilot, and instructor in very-high-performance, tailwheel and aerobatic aircraft.
Implementation and support of backup strategies, providing database consulting and engineering to development teams within company, creating custom sql scripts, database monitoring and backup scripts, database performance tuning, writing support and training documentation and investigating new database related technologies for use within company. Develop stored procedures, functions and business logic in PL/sql to support in-house database applications and websites. 06/94 to 08/98 Remote ha specialist/oracle dba. Provided remote technical consulting and dba support for employers ha customers. coordinated support plans for commercial customers with enhanced or premium support offerings. Scheduled training requirements for analysts and developed a proactive change control management plan for customers.
Designed tools to proactively report system and database availability in highly available environments. Created sql and PL/sql scripts to provide periodic reporting and database monitoring for internal and remote customers. Provided remote technical support to customers with environments based on employers unix and Windows Servers. Supported Microsoft server components including sql server, Exchange and sms server, as well as the complete backoffice suite. Duties included installation and configuration support, technical problem resolution, hardware and software assistance, and networking support for customer environments and clients). Jack kane founded epi, inc.
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Provide engineering, implementation, strategy and support plans to development teams for database related issues, including designing ha and redundant database systems shredder and implementing advanced Oracle options for mission critical environments. Designed, implemented and supported highly available rac clusters for companywide single sign on application, as well as other database solutions using advanced replication and standby (data guard) options. Provided Oracle rac consulting and engineering to internal organizations for planned implementations and migrations. . Consulting included designing backup solutions (using rman disaster recovery plans, and performance tuning advice for rac implementations. Design, implement and support Oracle advanced replication and Oracle streams to provide a replicated database environment to support internal hp business sites. 08/98 to 06/2000 Database Administrator /developer - information Technology Engineer. Provide database and system management for multiple hp-ux/NT servers running Oracle.3/8/8i/9i, ranging in size from 200Gb up to 500Gb of with data. Primary dba support for Pricing and Product databases, Enterprise directory service and multiple crm applications. Implementation and support of Oracle standby databases, and multimaster advanced replication in an environment consisting of over 40 separate database environments.
Perform assessments on customer sites business and report to management with recommendations on how to achieve a highly available production environment. . Design ha environments to be implemented within customer sites. Design, implement and support incident support system using Remedy. Create and supervise change and configuration management processes for external trade customers. 06/2000 to 03/04 it engineer/ Senior Oracle dba - member of it consulting Staff. Provide database and system management for multiple hp-ux/NT servers running Oracle 9i rac and Oracle Advanced Replication, and several Oracle 8i databases ranging in size from 500Gb.5Tb. Installation, upgrades, migrations, performance tuning, backup and recovery, schema management, sql tuning, proactive monitoring and troubleshooting Oracle databases in a 7x24 environment. Primary dba support for primary e-commerce site, several related customer facing oltp and data warehouse systems. . Databases were responsible for single sign on and profile information to over 3000 internal websites.
implemention and support a migration of an existing Oracle 10g rac (64cpu/128gb ram/60Tb asm disks on hp-ux) environment worth over 10M in annual revenue to the customer to two (128cpu/192gb ram/60b asm disks on hp-ux) environments. Engineering, implemented, documented and support builds of new clusters to use Oracle 10g/11g rac on hp-ux and Linux. . Including installing clusterware, asm (and shared disks) and creating new databases. Lead engineering effort, implementation, tuning and support of Oracle 10g rac/Dataguard upgrades to Oracle 11g rac/Dataguard. Designed a proof of concept environment to facilitate functionality testing and features, built a pilot environment which mirrored production to do in depth testing for all customers, and provided a detailed migration plan to migrate the current production cluster to the new environments. Lead engineering and implementation effort for migration of over 100 small to medium sized databases ( 2Tb) from hp pa-risc based machines to hp itanium and Linux based machines 03/04 to 09/04 Technology consultant - member of ha transformation team. Provide database architecture and consulting to external trade customer sites with Oracle, hp/ux and sap environments.
Provide system dba engineering, implementation and support for writings siebel Applications and sap using Oracle databases. Provide dba implementation and support for sap/Oracle migrations and upgrades, including environments using Oracle dataguard. Provide Oracle Application Server and Oracle apex implementation and support. Provide support for Oracle Enterprise manager Grid Control and Agents. Provide 3rd level support for Oracle rac, including applying patches, performance tuning, backup and recovery issues with rman/DataProtector, trace analysis, service creation, cluster and system management. Implementation and support of 10g and 11g migrations and upgrades from Oracle 9i and 10g databases, including rac (Real Application Clusters) databases on hp-ux and Linux. Engineering, implementation and support for high availability solutions using Oracle data guard, real Application Clusters (rac oracle Streams, Oracle Advanced Replication and specific network storage and clustering solutions. Provide after hours 24x7 database support, engineering and consulting for trade customers.
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Education: georgia institute of Technology Atlanta, georgia. Bachelor of Science with a major in Computer Science. Special skills qualifications: oracle certified Professional (8i/9i/10g microsoft Certified System Engineer, operating Systems: hp-ux 9/10/11/11i, hp mc serviceguard clusters, assignment aix, solaris, linux and Windows Software: Oracle 7/8/8i/9i/10g/11g, Oracle 9i/10g/11g rac, oracle data guard (standby db, both logical and physical Oracle Advanced Replication, Oracle Streams. Programming Languages: sql, pl/sql, perl, Shell scripting. Experience: 09/04 to Present it consultant / Senior Oracle dba db team. Provide Oracle and sql server database support and consulting to employers external trade customers. . Support includes routine dba tasks such as backup and recovery of full and partial databases using rman/NetBackup/DataProtector, performance tuning of sql and PL/sql code, system and database performance tuning of hp-ux multiprocessor shared database environments. Provide detailed architecture, consulting, engineering, implementation and support for database availability, backup and recovery, and performance tuning projects.