4.2-2. Packet scheduling (FCFS). Consider the pattern of red and green packet arrivals to a router'soutput port queue, shown below. Suppose each packet takes one time slot to be transmitted, andcan only begin transmission (at the earliest) at the beginning of a time slot after its arrival. Indicate thesequence of departing packet numbers (at t=1, 2, 3, 4, 5, 6, 7) under FCFS scheduling. Match eachtime unit (t=1, t=2, t=3 ....) with the number of the packet that was transmitted and thus "departs" atthat time unit.arrivalspacketin servicedepartures1 23???????mAt t= 1, the number of the packet thatfinishes transmission is:At t=4, the number of the packet thatfinishes transmission is: [Choose ][Choose ]packet 1At t=2, the number of the packet that packet 4finishes transmission is: packet 5packet 6packet 3At t=3, the number of the packet that No packet leaves at this time.finishes transmission is: packet 2At t=5, the number of the packet thatfinishes transmission is: At t=6, the number of the packet thatfinishes transmission is: 56→At t=7, the number of the packet thatfinishes transmission is: [Choose ][Choose ][Choose ][Choose ]<<<

Packet scheduling is a critical aspect of networking, determining the order in which packets are…

4.2-2. Packet scheduling (FCFS). Consider the pattern of red and green packet arrivals to a router's output port queue, shown below. Suppose each packet takes one time slot to be transmitted, and can only begin transmission (at the earliest) at the beginning of a time slot after its arrival. Indicate the sequence of departing packet numbers (at t = 1, 2, 3, 4, 5, 6, 7) under FCFS scheduling. Match each time unit (t=1, t=2, t-3....) with the number of the packet that was transmitted and thus "departs" at that time unit. arrivals packet in service departures 23 ??????? IN ←w/ At t=1, the number of the packet that finishes transmission is: At t=4, the number of the packet that finishes transmission is: At t=5, the number of the packet that finishes transmission is: At t=6, the number of the packet that finishes transmission is: 56 [Choose ] [Choose] packet 1 At t=2, the number of the packet that packet 4 finishes transmission is: packet 5 packet 6 packet 3 At t=3, the number of the packet that No packet leaves at this time. finishes transmission is: packet 2 At t-7, the number of the packet that finishes transmission is: 5 [Choose ] [Choose ] [Choose ] 16 [Choose ]

4.2-2. Packet scheduling (FCFS). Consider the pattern of red and green packet arrivals to a router's output port queue, shown below. Suppose each packet takes one time slot to be transmitted, and can only begin transmission (at the earliest) at the beginning of a time slot after its arrival. Indicate the sequence of departing packet numbers (at t = 1, 2, 3, 4, 5, 6, 7) under FCFS scheduling. Match each time unit (t=1, t=2, t-3....) with the number of the packet that was transmitted and thus "departs" at that time unit. arrivals packet in service departures 23 ??????? IN ←w/ At t=1, the number of the packet that finishes transmission is: At t=4, the number of the packet that finishes transmission is: At t=5, the number of the packet that finishes transmission is: At t=6, the number of the packet that finishes transmission is: 56 [Choose ] [Choose] packet 1 At t=2, the number of the packet that packet 4 finishes transmission is: packet 5 packet 6 packet 3 At t=3, the number of the packet that No packet leaves at this time. finishes transmission is: packet 2 At t-7, the number of the packet that finishes transmission is: 5 [Choose ] [Choose ] [Choose ] 16 [Choose ]

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Consider the pattern of red and green packet arrivals to a router’s output port queue, shown below. Suppose each packet takes one time slot to be transmitted, and can only begin transmission (at the earliest) at the beginning of a time slot after its arrival. Indicate the sequence of departing packet numbers (at t = 1, 2, 3, 4, 5, 6, 7) under Priority scheduling, where red packets have priority over green packets. Match each time unit (t=1, t=2, t=3 ....) with the number of the packet that was transmitted and thus "departs" at that time unit.
ed ers Packet scheduling (Scenario 1, RR). Consider the pattern of red and green packet arrivals to a router's output port queue, shown below. Suppose each packet takes one time slot to be transmitted, and can only begin transmission at the beginning of a time slot after its arrival. Indicate the sequence of departing packet numbers (at t = 1, 2, 3, 4, 5, 7, 8) under round robin scheduling, where red starts a round if there are both red and green packets ready to transmit after an empty slot. Give your answer as 7 ordered digits (each corresponding to the packet number of a departing packet), with a single space between each digit, and no spaces before the first or after the last digit, e.g., in a form like 7 6 5 4 3 2 1). arrivals packet in service departures 1325476 1324576 t 1 2 3 4 5 Į ? ?? 0 1 2 ? ? 3 4 5 67 9 ? ? 7 8 Not quite. One of more of your packets are in the incorrect order.
ed ers Packet scheduling (Scenario 1, Priority). Consider the pattern of red and green packet arrivals to a router's output port queue, shown below. Suppose each packet takes one time slot to be transmitted, and can only begin transmission at the beginning of a time slot after its arrival. Indicate the sequence of departing packet numbers (at t = 1, 2, 3, 4, 5, 7, 8) under priority scheduling, where red packets have higher priority. Give your answer as 7 ordered digits (each corresponding to the packet number of a departing packet), with a single space between each digit, and no spaces before the first or after the last digit, e.g., in a form like 7 6 5 4 3 2 1). arrivals packet in service departures 1234576 1235476 t 1 2 3 4 5 Į ?? 0 1 ? ? ? 67 ?? 2 3 4 5 6 7 8 Not quite. One of more of your packets are in the incorrect order.
Consider the same pattern of red and green packet arrivals to a router’s output port queue, shown below. Suppose each packet takes one time slot to be transmitted, and can only begin transmission at the beginning of a time slot after its arrival. Indicate the sequence of departing packet numbers (at t = 1, 2, 3, 4, 5, 6, 7) under round robin scheduling. Assume a round-robin scheduling cycle beings with green packets. Give your answer as 7 ordered digits (each corresponding to the packet number of a departing packet), with a single space between each digit, and no spaces before the first or after the last digit, e.g., in a form like 7 6 5 4 3 2 1).
4.01-1. Packet scheduling (a). Consider the pattern of red and green packet arrivals to a router's output port queue, shown below. Suppose each packet takes one time slot to be transmitted, and can only begin transmission at the beginning of a time slot after its arrival. Indicate the sequence of departing packet numbers (at t = 1, 2, 3, 4, 5, 6, 7) under FCFS scheduling. Give your answer as 7 ordered digits (each corresponding to the packet number of a departing packet), with a single space between each digit, and no spaces before the first or after the last digit, e.g., in a form like 7 6 5 4 3 2 1). [Note: You can find more examples of problems similar to this here B.) arrivals packet in service departures 234 0 ??? ? ? ? ? ? 2 67 -w 4 5
4.2-2. Packet scheduling (FCFS). Consider the pattern of red and green packet arrivals to a router's output port queue, shown below. Suppose each packet takes one time slot to be transmitted, and can only begin transmission (at the earliest) at the beginning of a time slot after its arrival. Indicate the sequence of departing packet numbers (at t = 1, 2, 3, 4, 5, 6, 7) under FCFS scheduling. Match each time unit (t=1, t=2, t=3....) with the number of the packet that was transmitted and thus "departs" at that time unit. arrivals packet in service departures 1 23 | ||| ??????? - Im At t=1, the number of the packet that finishes transmission is: 56 At t=6, the number of the packet that finishes transmission is: Is [Choose ] [Choose ] At t=2, the number of the packet that No packet leaves at this time. finishes transmission is: packet 2 At t-3, the number of the packet that packet 6 finishes transmission is: packet 5 At t=4, the number of the…
4.2-1a. Packet scheduling (FCFS). Consider the pattern of red and green packet arrivals to a router's output port queue, shown below. Suppose each packet takes one time slot to be transmitted, and can only begin transmission at the beginning of a time slot after its arrival. Indicate the sequence of departing packet numbers (at t = 1, 2, 3, 4, 5, 6, 7) under FCFS scheduling. Give your answer as 7 ordered digits (each corresponding to the packet number of a departing packet), with a single space between each digit, and no spaces before the first or after the last digit, e.g., in a form like 7 6 5 4 3 2 1). arrivals packet in service departures 146 234 ? ? ? ? ? ? ? IN 5 67 1 2 3 4 5 →→→→→ Not quite. This answer is incorrect. 16
4.2-2b Packet scheduling (PRI). Consider again the same pattern of red and green packet arrivals to a router's output port queue, as shown above (in question 4.2-2a). Indicate the sequence of departing packet numbers (at t = 1, 2, 3, 4, 5, 6, 7) under Priority scheduling, where red packets have priority over green packets. Match each time unit (t=1, t=2, t-3....) with the number of the packet that was transmitted and thus "departs" at that time unit. At t=1, the number of the packet that finishes transmission is: [Choose ] [Choose ] packet 6 packet 5 At t-3, the number of the packet that No packet departs at this time unit. finishes transmission is: packet 2 At t=4, the number of the packet that packet 4 finishes transmission is: packet 1 At t=2, the number of the packet that finishes transmission is: At t=5, the number of the packet that finishes transmission is: At t=6, the number of the packet that finishes transmission…
4.2-1a. Packet scheduling (FCFS). Consider the pattern of red and green packet arrivals to a router's output port queue, shown below. Suppose each packet takes one time slot to be transmitted, and can only begin transmission at the beginning of a time slot after its arrival. Indicate the sequence of departing packet numbers (at t = 1, 2, 3, 4, 5, 6, 7) under FCFS scheduling. Give your answer as 7 ordered digits (each corresponding to the packet number of a departing packet), with a single space between each digit, and no spaces before the first or after the last digit, e.g., in a form like 7 6 5 4 3 21). arrivals packet in service departures 0 234 ? 5 67 ????? 2 Im 3 Is 4 5 ? 6 Ţ
Packet scheduling. Consider the pattern of red and green packet arrivals to a router's output port queue, shown below. Suppose each packet takes one time slot to be transmitted, and can only begin transmission at the beginning of a time slot after its arrival. Indicate the sequence of departing packet numbers (at t = 1, 2, 3, 4, 5, 6, 7) under FCFS scheduling. Give your answer as 7 ordered digits (each corresponding to the packet number of a departing packet), with a single space between each digit, and no spaces before the first or after the last digit, e.g., in a form like 7 6 5 4 3 2 1). arrivals packet in service departures 234 5 2 ???? ? 67 3 4 5 6 t
4.2-1a. Packet scheduling (FCFS). Consider the pattern of red and green packet arrivals to a router's output port queue, shown below. Suppose each packet takes one time slot to be transmitted, and can only begin transmission at the beginning of a time slot after its arrival. Indicate the sequence of departing packet numbers (at t = 1, 2, 3, 4, 5, 6, 7) under FCFS scheduling. Give your answer as 7 ordered digits (each corresponding to the packet number of a departing packet), with a single space between each digit, and no spaces before the first or after the last digit, e.g., in a form like 7 6 5 4 3 21). arrivals packet in service departures 0 234 ???? ? ? ? ? IN 5 67 2 3 1+ ??? 5 ←s 6
Consider the pattern of red and green packet arrivals to a router’s output port queue, shown below. Suppose each packet takes one time slot to be transmitted, and can only begin transmission at the beginning of a time slot after its arrival. Indicate the sequence of departing packet numbers (at t = 1, 2, 3, 4, 5, 6, 7) under Priority scheduling, where red packets have priority over green packets.. Match each time unit (t=1, t=2, t=3 ....) with the number of the packet that was transmitted and thus "departs" at that time unit.