**6.4-1 Network- and Link-layer addressing: an end-to-end-scenario (1a).** Consider the network shown below. The IP and MAC addresses are shown for hosts A, B, C, and D, as well as for the router's interfaces. Consider an IP datagram being sent from node B to node D. Match the source/destination network- or link-layer address at the location (3) by choosing a value from the pull-down list.**Diagram Description:**- The diagram illustrates a network with several hosts (A, B, C, D) and a router.- Host A: connected at point (1) with IP and MAC addresses not specified in the image.- Host B: connected to a switch, leading to the router with its MAC address displayed: `68-01-BC-58-AF-24` and IP `128.119.50.107`.- Host C: IP `128.119.240.52`- Host D: IP `128.119.240.60`- Router interfaces indicate IP and MAC addresses: For instance, an interface shows `49-FA-B0-3C-E2-7C` for its MAC address and `128.119.240.1` for its IP.**Dropdown Options:**- MAC Addresses: - D5-A0-EE-9A-73-D5 - 49-FA-B0-3C-E2-7C - 72-9E-4A-31-9C-42 - The MAC address of the switch between host B and location (3) - 68-01-BC-58-AF-24- IP Addresses: - 128.119.240.116 - 128.119.240.15 - 128.119.50.60 - 128.119.50.107**Questions:**1. What is the source MAC address on the frame at point (3)?2. What is the destination MAC address on the frame at point (3)?3. What is the source IP address of the datagram at point (3)?4. What is the destination IP address of the datagram at point (3)?These dropdowns and questions test understanding of network and link-layer addressing in a specific network scenario.

A device must known the destination MAC address to communicate locally through media type like Ethernet.MAC Address : It is an address which is written into the network interface of the device during manufacturing.Sometimes a MAC address is referred to as a BIA because the address is hard coded into read-only memory on the NIC.When the computer boots up,the NIC copies its MAC address from ROM into RAM.Source MAC address : This is the MAC address of the source device NIC.Destination MAC address : This is the MAC address of the destination device NIC.When a NIC receives an Ethernet frame,it examines the destination MAC address to see if it matches the physical MAC address that is stored in RAM. Please select text to grab.(i) The source MAC address on the frame at point (3) is: 68-01-BC-58-AF-24EXPLANATIONThe source MAC address is the MAC address of the network interface card (NIC) of the sending device. In this case, the source MAC address is the MAC address of node B, which is the sender of the IP address. The provided MAC address "68-01-BC-58-AF-24 is indeed the correct source MAC address at point (3).(ii)The destination MAC address on the frame at point(3) is: 49-FA-B0-3C-E2-7CEXPLANATIONThe destination MAC address is the MAC address of the intended receiving device's NIC. In this scenario, the destination MAC address is the MAC address of node which is the receiver of the IP datagram. The provided MAC address "49-FA-B0-3C-E2-7C is the correct destination MAC address at point(iii)`The source IP address of the datagram at point(3) is: 128.119.50.107EXPLANATIONThe source IP address is the IP address of the sender, node B, which originates the IP datagram. The given IP address "128.119.50.107 is the accurate source IP address at point(iv) The destination IP address of the datagram at point (3) is: 128.119.240.116EXPLANATIONThe destination IP address is the IP address of the intended recipient, which is node D in this case. The provided IP address "128.119.240.116 is indeed the correct destination IP address at point`Conclusion(i) Source MAC address on the frame at point (3):68-01-BC-58-AF-24(ii) Destination MAC address on the frame at point (3) :49-FA-B0-3C-E2-7C(iii) `Source IP address on the frame at point (3): 128.119.50.107(iv) Destination IP address on the frame at point (3) :128.119.240.116

Engineering

Computer Science

6.4-1 Network- and Link-layer addressing: an end-to-end-scenario (1a). Consider the network shown below. The IP and MAC addresses are shown for hosts A, B, C and D, as well as for the router's interfaces. Consider an IP datagram being sent from node B to node D. Match the source/destination network- or link-layer address at the location (3) by choosing a value from the pulldown list. 77-34-F1-EF-14-72 128.119.97.18 A (1) What is the source MAC address on the frame at point (3)? What is the source IP address of the datagram at point (3)? 68-01-BC-58-AF-24 128.119.50.107 [Choose ] D5-AO-EE-9A-73-D5 49-FA-BO-3C-E2-7C (2) 72-9E-4A-31-9C-42 What is the destination MAC address on the frame at point (3)? What is the destination IP address of the datagram at point (3)? The MAC address of the switch between host B and location (3). 128.119.240.116 128.119.240.15 CC-A 68-01-BC-58-AF-24 128. 128.119.50.60 128.119.50.107 [Choose] 49-FA-B0-3C-E2-7C 128.119.50.60 [Choose] [Choose ] [Choose] < 4C-90-AA-74-06-1F 128.119.240.52 <

6.4-1 Network- and Link-layer addressing: an end-to-end-scenario (1a). Consider the network shown below. The IP and MAC addresses are shown for hosts A, B, C and D, as well as for the router's interfaces. Consider an IP datagram being sent from node B to node D. Match the source/destination network- or link-layer address at the location (3) by choosing a value from the pulldown list. 77-34-F1-EF-14-72 128.119.97.18 A (1) What is the source MAC address on the frame at point (3)? What is the source IP address of the datagram at point (3)? 68-01-BC-58-AF-24 128.119.50.107 [Choose ] D5-AO-EE-9A-73-D5 49-FA-BO-3C-E2-7C (2) 72-9E-4A-31-9C-42 What is the destination MAC address on the frame at point (3)? What is the destination IP address of the datagram at point (3)? The MAC address of the switch between host B and location (3). 128.119.240.116 128.119.240.15 CC-A 68-01-BC-58-AF-24 128. 128.119.50.60 128.119.50.107 [Choose] 49-FA-B0-3C-E2-7C 128.119.50.60 [Choose] [Choose ] [Choose] < 4C-90-AA-74-06-1F 128.119.240.52 <

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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Question

**6.4-1 Network- and Link-layer addressing: an end-to-end-scenario (1a).** Consider the network shown below. The IP and MAC addresses are shown for hosts A, B, C, and D, as well as for the router's interfaces. Consider an IP datagram being sent from node B to node D. Match the source/destination network- or link-layer address at the location (3) by choosing a value from the pull-down list.

**Diagram Description:**
- The diagram illustrates a network with several hosts (A, B, C, D) and a router.
- Host A: connected at point (1) with IP and MAC addresses not specified in the image.
- Host B: connected to a switch, leading to the router with its MAC address displayed: `68-01-BC-58-AF-24` and IP `128.119.50.107`.
- Host C: IP `128.119.240.52`
- Host D: IP `128.119.240.60`
- Router interfaces indicate IP and MAC addresses: For instance, an interface shows `49-FA-B0-3C-E2-7C` for its MAC address and `128.119.240.1` for its IP.

**Dropdown Options:**
- MAC Addresses:
- D5-A0-EE-9A-73-D5
- 49-FA-B0-3C-E2-7C
- 72-9E-4A-31-9C-42
- The MAC address of the switch between host B and location (3)
- 68-01-BC-58-AF-24
- IP Addresses:
- 128.119.240.116
- 128.119.240.15
- 128.119.50.60
- 128.119.50.107

**Questions:**
1. What is the source MAC address on the frame at point (3)?
2. What is the destination MAC address on the frame at point (3)?
3. What is the source IP address of the datagram at point (3)?
4. What is the destination IP address of the datagram at point (3)?

These dropdowns and questions test understanding of network and link-layer addressing in a specific network scenario.

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