Network class - Jul. 19th [Community Learning Week • Phase 4] Activity

[Answer] 1. A      2. ABCD      3. A      4. BC     5. ABCD

[Winner] user_3915171, hugu, kita, DragonVN, user_4001805

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Hello, everyone!

Join the Community Learning week Network Routing&Switching Datacom basics!

Network class learning time of this phase: Jul.19th - Jul.23th.
Answer time of this class: Jul.19th, 2 AM - Jul. 20th, 10 AM (UTC+0)

Class topic

Post 1. Basic introduction of the Datacom

Datacom, or data communication, is the combination of communication technology and computer technology. Assimilate the information or data to the vehicles between cities, while the datacom would be focusing on building the highway to vehicles these vehicles...More

Post 2. Network Model and Data Communication Process

In the early days of Internet history, the International Organization for Standardization (ISO) and the International Telegraph and Telephone Consultative Committee (CCITT) jointly published a seven-layer reference model for open system interconnection...More

Post 3. OSI model application layer and transport layer

For each layer, it charges for the specific mission and the whole seven layers form a part responds for the packet encapsulation and decapsulation. In this episode, we are going to introduce you to the application layer and transport layer...More

Post 4. Data Link Layer and Its Protocols

Why OSI model need a Data link layer? 1. Provide error-free transmission links for the network layer. 2. Shield the physical layer differences...More

Post 5. Hierarchical Model Concept

Hierarchical architecture refers to separating the components of the system into different layers. The components in each layer should remain cohesive and should be at roughly the same level of abstraction. Each layer should remain loosely coupled to the layers below it...More

Class Questions

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

1. Which port do we usually use for HTTP services?

A. TCP 80

B. TCP 443

C. 20

D. 21

2. (Multiple-Choices Question) Which of the following are made up of the TCP/IP layered model?

A. Application layer

B. Transport layer

C. Internet layer

D. Network interface layer

3. TCP is a connection-oriented protocol. In order to establish a TCP session, a three-way handshake mechanism is used. But to stop the TCP connection, you need to perform a four-way handshake.

A. True

B. False

4. (Multiple-Choices Question) Which of the following protocols are link layer protocols?

A. BGP

B. HDLC

C. PPP

D. OSPF

5. (Multiple-Choices Question) Which of the following protocols are application layer protocols?

A. DNS

B. HTTP

C. FTP

D.HTTPS

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

Next lesson >>>Transmission&Access Maintenance Basics