QUESTIONS 1. Analysis and determination of design requirements: Based on the case study, identify at least 4 improvements to apply to the current state of the network. Remember to support your answers briefly. 2. High level design: Based on the suggested improvements, it indicates the technologies, scope and impact of the improvements to be implemented in the new design of the business network. 3. Implementation of Wi-Fi networks: You must deploy a Wi-Fi network in an exhibition hall for various IT service companies, for which you must implement a Wi-Fi service for visitors and employees of the exhibiting companies. The exhibition area has 1200 m. squares. You must present your design and suggestions for the implementation of the Wi-Fi network duly supported. 4. QoS Implementation: You must implement the QoS service at the company's headquarters, which has an IP telephony service and video conferencing and video on demand applications. Determines which quality of service model supports voice and video service and applications. Determines the QoS model to apply, the type of queue for network traffic and the traffic shaping parameters to apply. Study Case Layer 2 redundancy with spanning tree protocol presents convergence problem and in some areas it is not possible to access external networks because the default gateway does not respond or access slows down. Each site has a main cisco 4331 router and 2 Cisco Catalyst 3560 layer 3 switches with HSRP first hop redundancy. Running ospf protocol. The internal network presents varied equipment using mainly Cisco Catalyst 2960 layer 2 switch with redundant STP and HSRP links, the support team indicates that the recovery times when a link goes down generates connection problems with the database services and mission applications criticism. Currently, the San Borja and San Isidro offices are interconnected by a dedicated layer 2 link whose contract expires in 18 months. The internet connection of the two venues is currently made from the San Isidro headquarters through a single provider, in the last year it has presented problems in the link that has limited internet access of both venues, for which a connection is required. solution that provides redundancy in Internet access. On the other hand, teachers and students indicate that the connection to the Wi-Fi network is poor, it is slow and there is a loss of connectivity when moving within each venue, in some cases it is necessary to authenticate again to reestablish the connection, in addition to requiring a lot of effort in the configuration and individual maintenance of each Access Point. The currently used IPv4 address scheme is based on class C networks and subnets and presents problems for identifying the network or subnet to which each laboratory is linked. In addition, there have been problems of duplication of IP addresses due mainly to a combination of assignment via DHCP and static assignment in the labs, plus current address allocation generates extensive routing tables. The administrative staff indicates that the IP telephony services present problems in the calls, which in many cases give a busy tone or are interrupted mainly during the mornings and at nights. Problems involving unauthorized access between laboratories and equipment assigned to administrative and academic staff have arisen at the campuses. On the other hand, the indiscriminate use of bandwidth for downloads has been detected.