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 234 ? 0 1 IN 2 5 67 3 ←w 5 6 19

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 234 ? 0 1 IN 2 5 67 3 ←w 5 6 19

Principles of Information Security (MindTap Course List)

6th Edition

ISBN:9781337102063

Author:Michael E. Whitman, Herbert J. Mattord

Publisher:Michael E. Whitman, Herbert J. Mattord

Chapter6: Security Technology: Access Controls, Firewalls, And Vpns

Section: Chapter Questions

Problem 2RQ

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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.
hdet b) Consider sending a packet contains 1100 bits from Host A to Host B in a store and forward nerwork. There are 10 links (and 9 routers) between A and B, and the links are congested (there Is a queuing delays). Assume propagation delay over the links are negligible. As a packet travels along the route, it encounters an average of 5 packets already waiting in the queue to be transmitted when it arrives at each router, How long does it take for the packet to get to the receiver if the nodes transmit on a "first come first served" basis (in ms)?
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).
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.
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
4.2-2. 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 ??????? m At t= 1, the number of the packet that finishes transmission is: At t=4, the number of the packet that finishes transmission is: [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=5, 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 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