Chapter 5: The Data Link Layer Our goals: ❒ understand principles behind data link layer services: ❍ ❍ ❍ ❍ ❒ error detection‚ correction sharing a broadcast channel: multiple access link layer addressing reliable data transfer‚ flow control: done! instantiation and implementation of various link layer technologies 5: DataLink Layer 5-1 Link Layer ❒ ❒ ❒ ❒ ❒ 5.1 Introduction and services 5.2 Error detection and correction 5.3Multiple access protocols 5
Premium Ethernet
Document Digitizing or Data Digitization Data Digitization or document digitizing is the process by which physical or manual records such as text‚ images‚ video‚ and audio are converted into digital formats. This is of vital significance when projects need directions based on already established facilities and the implementing agency needs to find the scope for expansion. Data Digitization is essential‚ but it is definitely not the core activity of most organizations that require it. Offshore
Premium Digital
02/29/2012 ESTIMATED BURDEN: 1 HOUR* (See Page 2) PART I - BIOGRAPHIC DATA Instructions: Complete one copy of this form for yourself and each member of your family‚ regardless of age‚ who will immigrate with you. Please print or type your answers to all questions. Mark questions that are Not Applicable with "N/A". If there is insufficient room on the form‚ answer on a separate sheet using the same numbers that appear on the form. Attach any additional sheets to this form. Warning: Any false statement
Premium United States Immigration to the United States Human migration
Data Link Layer INTRODUCTION: Now a day’s communication is vital for the entire world‚ nothing happens without communication. The cell radio communication and wireless computer networks of GSM (Global System Mobile)‚ CDMA (Code Division Multiple Access) type are worldwide communication systems. All these communication systems are based on the reference model OSI-RM (Open System Interconnection-Reference Model) Description of OSI-RM System: OSI-RM is an International Standard ISO that defines
Premium Routing protocol OSI model Routing
Amanda Mueller MBA6018 – Data Analysis Unit 3 Activity 1 January 23‚ 2013 Practical Application Scenario 1 In 2010‚ Playbill Magazine contracted Boos Allen to conduct a survey aimed at determining the average annual household income of Playbill readers. 300 readers were randomly pulled and sampled from the list of customers provided by Playbill Magazine. From that sampling effort‚ Boos Allen was confident that the population average household income is $119‚155 and that the population
Premium Statistical hypothesis testing Statistics Normal distribution
1. The strong will to deeply understand the field and build the business. Kalin’s enthusiastic research on feta cheese before and during summer 2001 shows his firm will for success. He went on field and online to search any information about food imports. Furthermore‚ when he found himself struggling to maintain his pricing structure‚ he had a major breakthrough – his innovation. He established website Malincho and started to promote credit sales. 2. Kalin’s knowledge in finance and accounting indeed
Premium Cheese Economics English-language films
PASS/REFER COMMENTS LO1: Understand what data needs to be collected to support HR practices 1.1 Explain why an organisation needs to Good explanation as to why organisations Pass collect and record HR data. need to collect and record HR data. 1.2 Identify the range of HR data that Clear identification of the type of data that organisations collect and how this Pass organisations collect which support HR supports HR practice. practice. LO2: Know how HR data should be recorded and stored 2.1 Describe
Premium Term Data Protection Act 1998 Data
Statistical Time Division Multiplexing * Asymmetric Digital Subscriber Line(ADSL) Multiplexing * Set of techniques that allows the simultaneous transmission of multiple signals across a single link * allows several transmission sources to share a larger transmission capacity Link = physical path Channel = portion of a link that carries a transmission between a given pairs of lines 2 CATEGORY OF MULTIPLEXING WDM FDM TDM ADSL Frequency Division Multiplexing *
Premium Data transmission
National data of education The starting point for the creation of an event-history database is the source registers for official statistics. Within education the three files mentioned above (enrolments‚ graduates and attainment) are arranged for the purpose of making them comparable over time. New data are merged with old data and classification variables are compared one by one. All changes for each classification variable is assigned with dates and coded as gains or loss records by a set of predefined
Premium Education Literacy Higher education
Data Gathering Techniques Data Gathering Techniques Interview • Interviews can be conducted in person or over the telephone. • Questions should be focused‚ clear‚ and encourage open-ended responses. • Interviews are mainly qualitative in nature. Data Gathering Techniques Advantages of interviews The main advantages of interviews are: • they are useful to obtain detailed information about personal feelings‚ perceptions and opinions • they allow more detailed questions to be asked • they usually
Premium Qualitative research Scientific method Quantitative research