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Quiz 8 May 21, 2015 Computer Engineering 80N Left Neighbor: Right Neighbor: Keep this side up on your desk until you are told to turn the page over. This is a closed book quiz. No calculators. First Name Last Name CE 80N Quiz 8, May 21, 2015 The following questions refer to network diagram below. Alice Bob Carol Router #1 240.0.0.1 /24 240.0.0.2 /24 240.0.0.1 /24 Router #2 230.0.0.2 /24 Santa Cruz Network Trent 230.0.0.3 /24 220.0.0.1 /24 Middle Network 220.0.0.2 /24 220.0.0.2 /24 New York Network 1. (1 point) What is the network address of the Santa Cruz Network. . . . / 2. (1 point) What is the network address of the New York Network. . . . / 3. (1.5 points) The Routing Table of the Router #1 is below. Add an entry that lets laptops in Santa Cruz send packets to laptops in New York. Network Address . . . Netmask . Next Hop . . . . . / 4. (1.5 points) The Routing Table of the Router #2 is below. Add an entry that lets laptops in New York send packets to laptops in Santa Cruz. Network Address . . . Netmask . Next Hop . . . . . / 5. (1 point) Trent wants to check how many hops there are between his laptop and Bob ’s laptop. What command can Trent type on his laptop to determine the number of hops? 6. (1 point) Alice wants to check that her laptop can communicate with Carol ’s laptop. What command can Alice type on her laptop to check whether there can be a connection? 7. (1 point) Bob and Carol each start a videoconferencing program that streams audio and video to the other’s laptop. Which Layer-4 protocol does the program use for its packets? 8. (2 points) A packet is traveling through the network from Alice ’s laptop to Trent ’s laptop. When the packet is on the Middle Network, what are its IP addresses? Ethernet Header Dest Src Type MAC MAC IP Header Destination IP Address Source IP Address . . . . . Rest of IP Hdr. . Data Quiz 8 May 21, 2015 Computer Engineering 80N Left Neighbor: Right Neighbor: Keep this side up on your desk until you are told to turn the page over. This is a closed book quiz. No calculators. First Name Last Name CE 80N Quiz 8, May 21, 2015 The following questions refer to network diagram below. Linda Pat Wendy Router #1 180.0.0.1 /24 180.0.0.2 /24 180.0.0.1 /24 Router #2 170.0.0.2 /24 Santa Cruz Network Craig 170.0.0.3 /24 160.0.0.1 /24 Middle Network 160.0.0.2 /24 160.0.0.2 /24 New York Network 1. (1 point) What is the network address of the Santa Cruz Network. . . . / 2. (1 point) What is the network address of the New York Network. . . . / 3. (1.5 points) The Routing Table of the Router #1 is below. Add an entry that lets laptops in Santa Cruz send packets to laptops in New York. Network Address . . . Netmask . Next Hop . . . . . / 4. (1.5 points) The Routing Table of the Router #2 is below. Add an entry that lets laptops in New York send packets to laptops in Santa Cruz. Network Address . . . Netmask . Next Hop . . . . . / 5. (1 point) Craig wants to check how many hops there are between his laptop and Pat ’s laptop. What command can Craig type on his laptop to determine the number of hops? 6. (1 point) Linda wants to check that her laptop can communicate with Wendy’s laptop. What command can Linda type on her laptop to check whether there can be a connection? 7. (1 point) Pat and Wendy each start a videoconferencing program that streams audio and video to the other’s laptop. Which Layer-4 protocol does the program use for its packets? 8. (2 points) A packet is traveling through the network from Linda ’s laptop to Craig ’s laptop. When the packet is on the Middle Network, what are its IP addresses? Ethernet Header Dest Src Type MAC MAC IP Header Destination IP Address Source IP Address . . . . . Rest of IP Hdr. . Data Quiz 8 May 21, 2015 Computer Engineering 80N Left Neighbor: Right Neighbor: Keep this side up on your desk until you are told to turn the page over. This is a closed book quiz. No calculators. First Name Last Name CE 80N Quiz 8, May 21, 2015 The following questions refer to network diagram below. Carol Sam Sybil Router #1 150.0.0.1 /24 150.0.0.2 /24 150.0.0.1 /24 Router #2 140.0.0.2 /24 Santa Cruz Network Oscar 140.0.0.3 /24 130.0.0.1 /24 Middle Network 130.0.0.2 /24 130.0.0.2 /24 New York Network 1. (1 point) What is the network address of the Santa Cruz Network. . . . / 2. (1 point) What is the network address of the New York Network. . . . / 3. (1.5 points) The Routing Table of the Router #1 is below. Add an entry that lets laptops in Santa Cruz send packets to laptops in New York. Network Address . . . Netmask . Next Hop . . . . . / 4. (1.5 points) The Routing Table of the Router #2 is below. Add an entry that lets laptops in New York send packets to laptops in Santa Cruz. Network Address . . . Netmask . Next Hop . . . . . / 5. (1 point) Oscar wants to check how many hops there are between his laptop and Sam ’s laptop. What command can Oscar type on his laptop to determine the number of hops? 6. (1 point) Carol wants to check that her laptop can communicate with Sybil ’s laptop. What command can Carol type on her laptop to check whether there can be a connection? 7. (1 point) Sam and Sybil each start a videoconferencing program that streams audio and video to the other’s laptop. Which Layer-4 protocol does the program use for its packets? 8. (2 points) A packet is traveling through the network from Carol ’s laptop to Oscar ’s laptop. When the packet is on the Middle Network, what are its IP addresses? Ethernet Header Dest Src Type MAC MAC IP Header Destination IP Address Source IP Address . . . . . Rest of IP Hdr. . Data