BADM5060 Chapter 4 CriticalThinkingQuestions.docx

BADM5060 Chapter 4 CriticalThinkingQuestions.docx -...

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S ISTEMAS D E I NFORMACIÓN P ARA L A G ERENCIA C ÓDIGO Y N ÚMERO : BADM 5060 T RIMESTRE : AGOSTO A NOVIEMBRE 2017 D R . J UAN K ARMÁN F ERNÁNDEZ P ROFESOR C RITICAL T HINKING Q UESTIONS C HAPTER IV N ETWORKS FOR E FFICIENT O PERATIONS AND S USTAINABILITY J OSÉ A. N IEVES S ANTIAGO 30 DE AGOSTO DE 2017 U NIVERSIDAD I NTERAMERICANA DE P UERTO R ICO R ECINTO M ETROPOLITANO F ACULTAD DE C IENCIAS Y T ECNOLOGÍA P ROGRAMA G RADUADO EN S ISTEMAS A BIERTOS DE I NFORMACIÓN S AN J UAN , P UERTO R ICO
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D EPARTAMENTO DE C IENCIAS DE C OMPUTADORAS Y M ATEMÁTICAS P ROGRAMA G RADUADO EN S ISTEMAS A BIERTOS DE I NFORMACIÓN S ISTEMAS D E I NFORMACIÓN P ARA L A G ERENCIA C ÓDIGO Y N ÚMERO : BADM 5060 T RIMESTRE : AGOSTO A NOVIEMBRE 2017 D R . J UAN K ARMÁN F ERNÁNDEZ P ROFESOR C HAPTER IV N ETWORKS FOR E FFICIENT O PERATIONS AND S USTAINABILITY C RITICAL T HINKING Q UESTIONS A NSWERED 1. Explain how network capacity is measured. Network capacity is the maximum capacity of a link or network path to convey data from one location in the network to another. Bandwidth is the capacity or throughput per second of a network. 2. How are devices identified to a network? Each device attached to a network has a unique IP address that enables it to send and receive files. Every device that communicates with a network must have a unique identifying IP address. An IP address is comparable to a telephone number or home address. 3. Explain how digital signals are transmitted. Files are broken down into blocks known as packets in order to be transmitted over a network to their destination, which also has a unique IP address. Most networks use IP Version 4 (IPv4). 2
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4. Explain the functions of switches and routers. Network switches and routers are devices that transmit data packets from their source to their destination based on IP addresses. A switch acts as a controller, enabling networked devices to talk to each other efficiently. For example, switches connect computers, printers, and servers within an office building. Switches create a network. Routers connect networks. A router links computers to the Internet, so users can share the connection. Routers act like a dispatcher, choosing the best paths for packets to travel. Investments in data networks, IP addresses, routers, and switches are business decisions because of their impact on productivity, security, user experiences, and customer service. 5. QoS technologies can be applied to create two tiers of traffic. What are those tiers? Give an example of each type of traffic. QoS technologies can be applied to create two tiers of traffic: Prioritize traffic: Data and apps that are time-delay-sensitive or latency sensitive apps, such as voice and video, are given priority on the network. Throttle traffic: In order to give latency-sensitive apps priority, other types of traffic need to be held back (throttled).
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