Computer Network midterm Exam Questions & Answers 2024 ( A+ GRADED 100% VERIFIED)

Computer Network midterm Exam Questions & Answers 2024 ( A+ GRADED 100% VERIFIED) What is a protocol? Which of the following human scenarios involve a protocol (recall: "Protocols define the format, order of messages sent and received among network entities, and actions taken on message transmission, receipt")? -Two people introducing themselves to each other. -One person asking, and getting, the time to/from another person. -A student raising her/his hand to ask a really insightful question, followed by the teaching acknowledging the student, listening carefully to the question, and responding with a clear, insightful answer. And then thanking the student for the question, since teachers love to get questions. Access network per-subscriber speeds. Match the access network with the approximate speeds that a subscriber might experience. (Note: if you look these up, do so in the 8E textbook, slides,or video -- not in the 7E or earlier versions, since link access speeds are always increasing over the years). 1)Ethernet - Wired. Up to 100's Gbps per link. 2)4G cellular LTE - Wireless. Up to 10's Mbps per device. 3)802.11 WiFi- Wireless. 10's to 100's of Mbps per device. 4)Cable access network- Wired. Up to 10's to 100's of Mbps downstream per user. 5)Digital Subscriber Line-Wired. Up to 10's of Mbps downstream per user. Link Transmission Characteristics. Which of the following physical layer technologies has the highest transmission rate and lowest bit error rate in practice? Fiber optic cable Routing versus forwarding. Choose one the following two definitions that makes the correct distinction between routing versus forwarding. Forwarding is the local action of moving arriving packets from router's input link to appropriate router output link, while routing is the global action of determining the source-destination paths taken by packets. Packet switching versus circuit switching (1). Which of the characteristics below are associated with the technique of packet switching 1. Data may be queued before being transmitted due to other user's data that's also queueing for transmission. 2.This technique is used in the Internet. 3.Resources are used on demand, not reserved in advance. 4. Congestion loss and vari