30+ Must‑Know NetEase Interview Questions to Test Your CS Fundamentals

Besides the big three (BAT), NetEase remains a favorite among many internet professionals. This article shares a collection of real NetEase interview questions for candidates to practice.

Part 1: Computer Science Fundamentals

1. (2 points) For multi‑keyword files, which organization is both convenient and efficient? A. Sequential file B. Inverted file C. Hash file D. B+‑tree index file

2. (2 points) Which algorithms can be used to traverse a network graph? A. Breadth‑first search B. Depth‑first search C. Linear programming D. Decision tree

3. (2 points) Using a 6‑tuple to represent the vertex counts of an undirected graph, which of the following 6‑tuples could be valid? A. <1,2,3,4,5,6> B. <2,4,4,2,3,5> C. <1,3,4,2,2,1> D. <1,2,2,4,5,2>

4. (2 points) Which statement about computability is correct? A. All problems can be abstracted to a computational model; a Turing machine can solve them in finite time (though possibly very long), and modern computers are based on this theory. B. Some problems cannot be solved in finite time, but all solutions can be verified in finite time. C. Gödel's first incompleteness theorem states that no complete and consistent axiom system exists. D. All of the above are incorrect.

5. (2 points) The XOR result (in decimal) of the hexadecimal number C396 and the octal number 64474 is: A. 43690 B. 16660 C. 60350 D. 20375

6. (2 points) Which of the following classic problems belong to the NP class? A. Turing halting problem B. Sorting C. 0‑1 knapsack problem D. Enumerating all subsets of a finite set

7. (2 points) Given the string AGDCCDDDGFBBFFGGDDDGGGEFFDDCCCDDDFGAAA, after Huffman coding, what binary code corresponds to the letter F? A. 10 B. 11 C. 110 D. 101

9. (2 points) Improper process management can cause deadlocks. In the classic Banker’s algorithm (1) and resource preemption (2), which methods are they? A. (1) deadlock prevention, (2) deadlock avoidance B. (1) deadlock prevention, (2) deadlock recovery C. (1) deadlock avoidance, (2) deadlock prevention D. (1) deadlock avoidance, (2) deadlock recovery

10. (2 points) Which statement about database indexes is correct? A. Creating indexes on certain fields can slightly reduce the disk space used by related tables. B. Creating indexes on certain fields can effectively improve read and write efficiency for those fields. C. Common DBMSs usually store indexes using hash tables. D. The existence of indexes may reduce the efficiency of deleting related fields.

Part 2: Specialized Questions

1. Which option is NOT a necessary condition for deadlock? A. Mutual exclusion B. Network unreachable C. Non‑preemptible resources D. Circular wait E. Hold‑and‑wait

2. Match the following devices or concepts with the appropriate OSI model layer name.

• EIA/TIA RS‑232, network card • TCP, UDP • IP, ARP, OSPF • HTTP, DNS, FTP • GIF, ASCII, PICT, HTML • PRC, SQL, NFS • Switch, HDLC, PPP

3. Which statement about processes and threads is incorrect? A. A process is an independent program execution unit that the system allocates resources to and schedules. B. A thread is the smallest unit of execution that the OS can schedule, contained within a process. C. Multiple threads in the same process can run concurrently, but a thread cannot create or destroy another thread. D. Threads within the same process share all system resources such as virtual address space, file descriptors, and signal handlers.

4. In the best case, the time complexity of searching a hash table is: A. O(1) B. O(n) C. O(log n) D. O(n²)

5. The default ports for FTP and SMTP services are: A. 20 and 25 B. 21 and 25 C. 20, 21 and 25 D. 20 and 21

6. Which address cannot be used as a LAN internal IP? A. 192.168.201.114 B. 172.16.4.25 C. 127.0.0.1 D. 10.0.0.1

7. To grant executable permission to a script in Linux, which command is correct? A. chmod +x filename.sh B. chown +x filename.sh C. chmod +r filename.sh D. chown +r filename.sh

8. Which file is used to configure DNS servers in Linux? A. /etc/hosts B. /etc/resolv.conf C. /etc/hostname D. /etc/sysconfig/network

9. In a crontab entry "*/30 * 3 * *", what does the schedule mean? A. Every 30 minutes at 3 AM daily. B. At the 30th minute of every 3‑hour interval. C. Every Wednesday, every 30 minutes. D. On the 3rd day of each month, every 30 minutes.

10. For a file with permission 765, which symbolic representation is correct? A. -rw-rw-r-x B. -rw-r-xr-r C. -rwxrw-r-x D. -rwxr-xrwx

Part 3: Short Answer Questions

1. Using a non‑uniform rope that takes 1 hour to burn from end to end, devise a method to measure 1 hour 15 minutes.

2. List Linux commands and configuration files related to network setup and briefly describe each function.

3. How to grant user a on host 192.168.1.1 permission to access table c in database b in MySQL?

4. How to view lines 300‑500 of file file1?

5. Briefly describe the TCP three‑way handshake process.

6. Write a script that analyzes standard Apache logs to count total visits and visits per IP, then list the top 5 IPs by request count.

7. Explain the working principles and characteristics of RAID 0, RAID 1, and RAID 5.

8. List three computer, Linux, or internet technologies you excel at.