Network class - August 16th [Community Learning Week • Phase 5] Activity

【Answer】1. A    2. C    3. C    4. ABC    5. ABC

【Winner】E.DR_91,    DragonVN,    wissal,    user_3915171,   scidox

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Hello, everyone!

Join the Community Learning week Network Routing&Switching Ethernet Switching Basics!

Network class learning time of this phase: August 16th – August 20th.
Answer time of this class: August 16th, 8 AM - August 17th, 4 PM (UTC+0).

Class topic

Post 1. Introduction to Ethernet

The Ethernet technology originates from an experimental network with the purpose of connecting multiple PCs at the speed of 3 Mbit/s. In general, Ethernet refers to a standard for 10 Mbit/s Ethernet networks. The Digital Equipment Corporation (DEC), Intel, and Xerox (DIX) joined efforts to develop and then issued the standard in 1982. The IEEE 802.3 standard is developed on the basis of the Ethernet standard and is compatible with it...More

Post 2. Introduction to Basic Interface Attributes

The attributes of an interface refer to the inherent attributes of the interface. These attributes determine the operation mode and outward performance of the interface. The attributes of an interface can be configured...More

Post 3. Introduction to MAC

The Ethernet identifies a network element by MAC address. On a LAN, data is encapsulated in Ethernet frames. After receiving an Ethernet frame, a device checks whether the MAC address of the frame is its own MAC address. If so, the device sends the frame to the upper layer software. This process does not apply to broadcast and multicast frames...More

Post 4. MAC Address Table

Each device maintains a MAC address table (MAC table for short). The MAC table stores the MAC addresses, VLAN IDs, and outbound interfaces of other devices that are learned by the device. When forwarding data, the device searches the MAC table based on the destination MAC address and VLAN ID in the data frame. The device can quickly locate the outbound interface, reducing broadcast traffic...More

Post 5. Layer 2 Ethernet Switch

A typical campus network consists of different devices, such as routers, switches, and firewalls. Generally, a campus network adopts the multi-layer architecture which includes the access layer, aggregation layer, core layer, and egress layer...More

Class Questions

After attending this class, please answer the following questions and comment with the answers below this post.

1. Ethernet networks are broadcast networks established based on the Carrier Sense Multiple Access with Collision Detection (CSMA/CD) mechanism. 

A. True

B. False

2. What is the maximum length of a frame in general?

A. 1512 bytes

B. 1516 bytes

C. 1518 bytes

D. 1522 bytes

3. What is the length of a MAC address?

A. 24 bits

B. 36 bits

C. 48 bits

D. 64.bits

4. (Multiple-Choices Question) What are the types of MAC address tables?

A. Dynamic MAC address entry

B. Static MAC address entry

C. Blackhole MAC address entry

5. (Multiple-Choices Question) What are the processing methods of the switch to the frame?

A. Flooding

B. Forwarding

C. Discarding

Hope you get good grades, come and enjoy this learning party! 

Click to learn: >>> next class - Transmission