Ccna 1- network basics After completing ccna1,students will understand the following network basics: network basics, Ethernet technology, basic network model, and seven-layer OSI TCP/IP network transmission media, such as copper cable, optical fiber, wireless, IP, addressing and routing. Ccna 2- Routers and Routing Fundamentals After learning CCNA2 course, students will understand the following router and routing knowledge: IOS management router configuration basic routing protocol TCP/IP basic concepts access control table network troubleshooting skills ccna 3- Data exchange basics and intermediate routing After learning CCNA3 course, Students will know the following knowledge about data exchange and intermediate routing: VLSM RIP second edition OSPF, EIGRP basic switch configuration spanning tree protocol virtual local area network virtual relay protocol virtual local area network routing CCNA4-WAN technology. After completing CCNA4 course, students will learn the following basic knowledge of SAN technology: extended IP address, NAT and PAT DHCP protocol, ISDN and DDR frame relay PPP network management protocol, SNMP industry standard certification CCNA course will lay the foundation for students to pass CCNA certification. With the popularity of wireless technology in the daily activities of organizations, enterprises rely more and more on wireless technology. The basic course of wireless local area network will teach students the development, implementation and troubleshooting knowledge of wireless network. This course * * * lasts for 70 hours, featuring practical exercises, highlighting the cultivation of skills and focusing on the knowledge of wireless network design, planning, implementation, operation and troubleshooting. It covers all aspects such as technology, safety and best design practices. Through the study, students will have the following abilities: according to the IEEE 802. 1 1 standard, design the logical architecture of wireless local area network for mobile wireless users. Master the knowledge about the common influencing factors of wireless LAN (including electromagnetic spectrum, radio wave propagation, modulation technology, frequency and the role of channels in wireless technology. )。 Using Cisco equipment and suitable antennas to meet the requirements of mobility and throughput, wireless local area networks are installed in buildings and between buildings, including site survey and document preparation. Complete the hardware installation and software configuration of Cisco Aironet wireless products, including WEP, Cisco LEAP, 802.6438+0 and other security protocols. Upgrade wireless products; Use event logs, command-line programs, and diagnostic tools for troubleshooting. WLAN course will lay the foundation for students to pursue the following careers: system engineer, product support engineer and system integration engineer. For students receiving higher education, the study of this course will help them to obtain a degree in electrical engineering or computer and management information system. Industry standard certification WLAN course will help students obtain Cisco WLAN after-sales engineer certification (WLANFE). In today's world, anything can be the target of an attack-from routers and switches to applications, even loosely managed security devices. Attacks launched by using the security policy between enterprises and remote users or business partners to achieve imperfect connections often occur. Enterprises, government departments and organizations must go all out to strengthen their vigilance and prevent hackers, outsiders and even disgruntled employees from threatening information security, information integrity and daily business operations. This makes the demand for network security talents unprecedented. The purpose of setting up the basic course of network security is to prepare students for the certification in this field. The desire of college teachers, students and administrators is to teach students to design and implement network security solutions through the opening of courses, so as to reduce the loss of income and the risk of being attacked. This course combines practical exercises, teacher lectures and online tutorials. This course * * * is 70 hours long and is an introductory course to introduce network security and the whole security process. Through learning, students will have the following abilities: according to the organization's evaluation of its network security weaknesses, choose appropriate security hardware, software, strategies and configurations, and provide protection options for known security threats. Complete the advanced installation, configuration, monitoring, troubleshooting, maintenance and recovery of Cisco IOS and PIX firewalls. Set the intrusion detection function of Cisco IOS and PIX firewalls. Install and configure CSACS (Cisco Secure Access Control Server) to ensure AAA (Authentication, Authorization and Statistics) services on Cisco IOS and PIX firewalls. Configure site-to-site VPN (Virtual Private Network) between Cisco devices, and configure remote access VPN between Cisco devices and clients to ensure the particularity and confidentiality of the network. The network security course will lay the foundation for students to engage in the following occupations: network security analyst, senior system analyst and system designer. For students receiving higher education, the study of this course will help them to obtain a degree in electrical engineering or computer and management information system.