In the 1980s, the Internet Engineering Task Force (IETF) released RFC 791 – Internet Protocol, which marks the standardization of IPv4. In the following decades, IPv4 has become one of the most popular protocols. Numerous people have developed various applications based on IPv4 and made various supplements and enhancements to IPv4, enabling the Internet to flourish. However, with the expansion of the Internet and the development of new technologies such as 5G and Internet of Things (IoT), IPv4 faces more and more challenges. It is imperative to replace IPv4 with IPv6. This course describes the reasons for IPv4-to-IPv6 transition and basic IPv6 knowledge.

The open ecosystem of the computing industry brings booming development of multiple fields, such as Commercial Off-the-Shelf (COTS), operating system, virtualization, middleware, cloud computing, and software applications. The network industry is also seeking transformation and development. Software. Defined Networking (SDN) and Network Functions Virtualization (NFV) are mainly used. This course aims to help engineers understand the development of SDN and NFV and introduce Huawei SDN and NFV solutions.

New protocols, technologies, and delivery and O&M modes are emerging in the network engineering field. Conventional networks face challenges from new connection requirements, such as requirements for cloud computing and artificial intelligence (AI). Enterprises are also pursuing service agility, flexibility, and elasticity. Against this backdrop, network automation becomes increasingly important. Network programmability and automation is to simplify network configuration, management, monitoring, and operations for engineers and improve deployment and O&M efficiency. This course is to help network engineers understand Python programming and implement network automation.

A broad range of places, such as campuses, office spaces, and shopping malls, are covered by networks. You can access internal resources of your school, access internal printers of your company to print documents, or access the Internet to browse news through the networks. These networks belong to campus networks and are generally constructed by enterprises or organizations. Campus networks not only improve the operational efficiency of enterprises, but also provide network access services for external users.This chapter describes the basic architecture of a campus network and details how to build a campus network.

SZL 211: HIV/AIDS JOMO KENYATTA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY revision past paper YEAR ONE EXAMINATION FOR DISTANCE LEARNING STUDENTS

General introduction: Public health and hygiene, human reproductive system, sex and sexuality. History of sexually transmitted diseases (STDs); History of Human Immunodeciency virus/ Acquired Immune deficiency Syndrome(HIV/AIDS), Comparative information on trends, global and local distribution, Justification of importance of course. Biology of HIV/AIDS; Overview of immune system, natural immunity to HIV/AIDS. The AIDS virus and its life cycle, disease progression, transmission and diagnosis. Discordant couples. Treatment and Management; nutrition, prevention and control; Abstain, Be faithful, Condom use, Destigmatize HIV/AIDS (ABCD) methods and an-tiretroviral drugs and vaccines. Pregnancy and AIDS. Management of HIV/AIDS patients. Social and cultural practices: Religion and AIDS. Social stigma on HIV/AIDS. Behavioral change. Voluntary Counseling and Testing Services. Gender and HIV/AIDS. Drug and alcohol abuse and HIV/AIDS. Poverty and AIDS. Families and AIDS orphans. Government policies: Global policies of AIDS. Legal rights of AIDS patients. AIDS Impact: Family /society setup, population, agriculture, education, health, industry, development, economy and other sectors.

General introduction: Public health and hygiene, human reproductive system, sex and sexuality. History of sexually transmitted diseases (STDs); History of Human Immunodeficiency virus/Acquired Immune deficiency Syndrome (HIV/AIDS), Comparative information on trends, global and local distribution, Justification of importance of course. Biology of HIV/AIDS; Overview of immune system, natural immunity to HIV/AIDS. The AIDS virus and its life cycle, disease progression, transmission and diagnosis. Discordant couples. Treatment and Management; nutrition, prevention and control; Abstain, Be faithful, Condom use, Destigmatize HIV/AIDS (ABCD) methods

Sex education, also called sexuality education or sex and relationships education. It's the process of acquiring information and forming attitudes and beliefs about sex, sexual identity, relationships and intimacy. It is also about developing young people's skills so that they make informed choices about their behavior, and feel confident and competent about acting on these choices. It is widely accepted that young people have a right to sex education, partly because it is a means by which they are helped to protect themselves against abuse, exploitation, unintended pregnancies, sexually transmitted diseases and HIV/AIDS.

Immune system is a system of biological structures and processes within an organism that protects against diseases by identifying and killing pathogens and tumor cells. The immune system is made up of organs that are involved in fighting invasion by foreign bodies.

HIV can’t grow or reproduce on its own. It requires cell of living organisms to infect & reproduce. HIV is specific to CD4+ cells in the human body i.e. cells with surface molecule called Cluster of Differentiation 4. Cells carrying this molecule are called CD4+ cells. Therefore HIV cant survive in the animal blood, because its only human blood that contains CD4+cells. HIV is a lentivirus. Like all viruses in this group it attacks the immune system. Lentiviruses are in turn part of a larger group of viruses called retroviruses. The term ”retrovirus” stems from the fact that these kinds of viruses are capable of copying RNA into DNA. The name lentivirus means slow virus. This is because they take such a longtime to produce any adverse effects in the body.