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Summary of common interview questions for network operation and maintenance engineers

2025-03-31 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Network Security >

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Shulou(Shulou.com)06/01 Report--

Part I: (volume A)

1. Which models of equipment have you used in Huawei or Cisco?

2. How to quickly judge whether there is a loop in the network?

3. Can I configure multiple IP address ranges for the same VLAN? What if there is no exchange of visits between VLAN?

4. How to release and update the IP address on PC? How to resolve the conflict between the IP address obtained by the client and the IP address of other clients?

5. What if the client cannot obtain the IP address from the DHCP server? What if it is slow for the client to obtain the IP address from the DHCP server?

6. The difference between access link and trunk link.

7. What if the establishment of OSPF neighbors is not successful?

8. What are the common methods for Huawei to upgrade and reinstall network equipment? Which method is simple and reliable to operate?

9. What are the commonly used intranet penetration software (remote management software)? List a few

10. What is the function and purpose of routine maintenance and inspection of the core computer room? Which items should be paid more attention to in the environmental inspection of the computer room? Which items should be paid attention to when checking network equipment?

11, the company network has been very slow how to do, how to investigate the reasons for the slow network, how to improve the speed of the network?

Part II: (volume B)

1. What is the function of the preemption function configured by the LACP protocol of the switch?

2. Have you ever passed the professional certification on the Internet? What is the effect of factory certification on a network engineer?

3. The company has an external web server. At present, external network users are unable to request services. How to locate the fault point? Please tell me the wrong train of thought or step.

4. How to ensure the stability of the company's core network and equipment? Which technologies can be used to achieve the redundancy and fault tolerance of core network equipment?

5. What improvements has RSTP made to STP?

6. which items should be paid attention to in the environmental inspection of the computer room during the inspection of the computer room?

7. Huawei switch, router, what to do after forgetting the login password? What are the common ways to crack passwords?

8. What are the ways for OSPF to check for errors in routes that cannot be found in other areas?

9. What are the ways in which IS-IS neighbor establishment is not successful?

10. What are the common deployment methods of corporate wireless coverage? What parameters do you need to pay attention to to deploy wireless coverage? How to accept the wireless coverage project?

11. Give an example of your own maintenance of network equipment? What's the problem? How did you solve it?

Part III: (volume C)

1. What are the main functions of vrrp? Describe how it works.

2. How to remotely manage the company's network equipment through an external network?

3. The company now has an internal Ftp server that cannot be accessed normally. Would you please give me a brief description of the solution?

4. What is the function of acl? What is the difference between standard acl and extended acl?

5. Give examples of common dynamic routing protocols and distinguish IGP from EGP.

6. Describe the function of DR and area 0 of ospf.

7. What are the solutions that devices can't learn IS-IS routing?

8. How to determine whether there is ARP***? in the private network What is the common way to solve ARP***?

9. How to configure remote management for a company's network equipment? Which methods are commonly used to remotely manage network devices in the intranet?

10. What is the basic information that should be paid attention to when checking the company's network equipment? Check the operation of the equipment, which items should be checked?

11. Have you done any similar work in network operation and maintenance before? A brief description of your work experience and content?

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