foreword
Network engineers refer to mid-level technical personnel engaged in the planning and design of computer network systems, the installation and debugging of software and hardware of network equipment, and the operation, maintenance and management of network systems. According to the survey data released by the China IT Industry Association, the monthly salary of a network engineer with one year of work experience can generally reach 6,000-8,000 yuan, and the annual salary of some senior network engineers is generally as high as 100,000.
It is not easy to become a professional network engineer from a high-rise building on the ground. It is necessary to start from the foundation, which is the basic knowledge of network engineers we share today. This basic network knowledge document includes OSI reference model, router, FTP, subnet mask, data encapsulation, network topology, VPN, NAT, TCP/IP, IP address, OSPF, firewall, DHCP and other necessary knowledge for junior network engineers point.
content display
1) What is a link?
2) What are the layers of the OSI reference model?
3) What is a backbone network?
4) What is LAN?
5) What is a node?
6) What is a router?
7) What is a peer-to-peer link?
8) What is anonymous FTP?
9) What is a subnet mask?
10) What is the maximum length allowed for UTP cables?
11) What is data encapsulation?
12) Describe the network topology
13) What is a VPN?
14) Briefly describe NAT.
15) What is the job of the network layer under the OSI reference model?
16) How does network topology affect your decisions when building a network?
17) What is RIP?
18) What are the different ways to secure computer networks?
19) What is a NIC?
20) What is WAN?
21) What is the importance of the OSI physical layer?
22) How many layers are there under TCP/IP?
23) What are proxy servers and how do they protect computer networks?
24) What is the function of OSI session layer?
25) What is the importance of implementing a fault tolerant system? Is it limited?
26) What does 10Base-T mean?
27) What is a private IP address?
28) What is NOS?
29) What is DoS?
30) What is OSI and what role does it play in computer networking?
31) What is the purpose of cables being shielded and having twisted pairs?
32) What are the advantages of address sharing?
33) What is a MAC address?
34) What are the equivalent layers or layers of the TCP/IP Application Layer in terms of the OSI Reference Model?
35) How to identify the IP class of a given IP address?
36) What is the main purpose of OSPF?
37) What is a firewall?
38) Describe star topology
39) What is a gateway?
40) What are the disadvantages of star topology?
41) What is SLIP?
42) Give some examples of private network addresses.
43) What is tracert?
44) What is the function of a network administrator?
45) Describe a disadvantage of peer-to-peer networks.
46) What is a hybrid network?
47) What is DHCP?
48) What is the main job of ARP?
49) What is TCP/IP?
50) How to use the router to manage the network?
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write at the end
A thousand miles begins with a single step. Network engineer is a job that needs experience and becomes more and more popular as you do it. It is important to master its basics. If you want to go further on the road of network engineer, then download this basic knowledge document and start learning!