Quiz 7 May 14, 2015 Computer Engineering 80N
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1 Quiz 7 May 14, 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.
2 First Name Last Name CE 80N Quiz 7, May 14, 2015 Laptop #1 Laptop #2 Laptop #3 Router #1 Router # / / / 24 The default gateway of Laptop #1 is Router #1. The default gateway of Laptop #2 is Router #2. The default gateway of Laptop #3 is Router #2. All routers have properly configured routing tables. 1. (2 points) Which command do you type on Laptop #2 to check that it can communicate with Laptop #3? ipconfig /all ping ping ping ping /all ping ping ping (3 points) Laptop #1 prepares to send an IP datagram to Laptop #3, but Laptop #1 s ARP cache is empty, and so it broadcasts an ARP request. Then subsequently it receives an ARP reply. (a) Which IP address does Laptop #1 send in the ARP request?... (b) Which MAC address does Laptop #1 receive in the ARP reply? 3. (4 points) It takes two packets to send data from Laptop #2 to Laptop #3. Fill in their addresses. 4. (1 point) It takes three packets for Laptop #2 to send data to Laptop #1. Fill in their address fields. (Yes, three packets. Remember how default gateways are used.)
3 Quiz 7 May 14, 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.
4 First Name Last Name CE 80N Quiz 7, May 14, 2015 Laptop B Laptop C Laptop A Router #1 Router # / / / 24 The default gateway of Laptop B is Router #1. The default gateway of Laptop C is Router #2. The default gateway of Laptop A is Router #2. All routers have properly configured routing tables. 1. (2 points) Which command do you type on Laptop C to check that it can communicate with Laptop A? ipconfig /all ping ping ping ping /all ping ping ping (3 points) Laptop B prepares to send an IP datagram to Laptop A, but Laptop B s ARP cache is empty, and so it broadcasts an ARP request. Then subsequently it receives an ARP reply. (a) Which IP address does Laptop B send in the ARP request?... (b) Which MAC address does Laptop B receive in the ARP reply? 3. (4 points) It takes two packets to send data from Laptop C to Laptop A. Fill in their addresses. 4. (1 point) It takes three packets for Laptop C to send data to Laptop B. Fill in their address fields. (Yes, three packets. Remember how default gateways are used.)
5 Quiz 7 May 14, 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.
6 First Name Last Name CE 80N Quiz 7, May 14, 2015 Laptop Z Laptop Y Laptop X Router #1 Router # / / / 24 The default gateway of Laptop Z is Router #1. The default gateway of Laptop Y is Router #2. The default gateway of Laptop X is Router #2. All routers have properly configured routing tables. 1. (2 points) Which command do you type on Laptop Y to check that it can communicate with Laptop X? ipconfig /all ping ping ping ping /all ping ping ping (3 points) Laptop Z prepares to send an IP datagram to Laptop X, but Laptop Z s ARP cache is empty, and so it broadcasts an ARP request. Then subsequently it receives an ARP reply. (a) Which IP address does Laptop Z send in the ARP request?... (b) Which MAC address does Laptop Z receive in the ARP reply? 3. (4 points) It takes two packets to send data from Laptop Y to Laptop X. Fill in their addresses. 4. (1 point) It takes three packets for Laptop Y to send data to Laptop Z. Fill in their address fields. (Yes, three packets. Remember how default gateways are used.)
Quiz 8 May 21, 2015 Computer Engineering 80N
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
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