Fortinet As one of the leading companies in the field of network security, the technical requirements are naturally not low. Recently received a lot of partners about Fortinet OA help, we Programhelp tutored a lot of Fortinet offer students, today this will help you disassemble Fortinet's online written test process and high-frequency questions, suitable for students who are just preparing for a quick start!

Fortinet OA Process Profile
First, the online written test (OA): more questions + bias practical, be sure to catch the rhythm!
Fortinet's OA is usually conducted through its own platform, and takes about 90 minutes. The number of questions is not small, about 7-10 questions, including many programming questions and multiple choice questions on fundamentals, and the overall style is more hands-on, emphasizing hands-on ability, and the style of questions is also more "engineering" than LeetCode.
HR will ask you in advance about the language you are familiar with, some of the questions are optional, but there are also some specified language questions that must be in the language required by the position (e.g. C++/Java/Python). Pay special attention to this point, don't wait until you start to do it to realize that the language you are familiar with is not supported.
The overall difficulty of the topic is medium, but "many, miscellaneous, manual operations," basically every question requires running through, debugging, submitting to be precise, can not be wrong. Correction time cost is very high, basically no time to go back, so the beginning of the reading comprehension, test logic should be very clear.
Round 1 Technical Interview (Round 1): basics heavy, full system/network coverage!
The first round of technical interview did not directly test LeetCode, but a lot of basic knowledge questions, especially biased towards the system level. For example, how to Debug when the operating system is in trouble, the difference between threads and processes, how to locate Page Fault, memory allocation strategy, etc. Many questions will start from a failure scenario, and gradually dig deeper to test your mastery of the underlying principles.
In this round, it is recommended that you review the classic operating system knowledge points in advance, do not just brush the questions, the basic Linux system commands, debugging process, thread deadlock and other content should also be mastered. Interviewers tend to follow up from one point to another, and it's easy to get blown up if you don't think clearly.
Round 2: Networking + Multi-threading + Asked if you are familiar with TCP/IP!
This round favors Network + Multi-thread content, which is not a low requirement for network programming. You'll be asked about TCP/IP, three handshakes, DNS request link flow, etc., as well as how to design mutual exclusion mechanisms in multi-threaded scenarios, how to avoid resource contention, etc.
Many students "fall off" at this stage, mainly because the foundation is not solid. It is recommended that you review socket programming, concurrency control (mutex, semaphore), scheduling models, etc. in advance. It would be nice to be able to write pseudo-code.
Round 3 Technical Interview (Round 3): System Design (but more team project design oriented)
In this round, the interviewer will often ask you to design the system module that their group is actually responsible for (e.g., a security policy control platform, log tracking system, etc.), and ask you to start from the architecture, and make clear the overall system design idea, data flow process, and the relationship between the components.
This round is not like the traditional Big Tech kind of open-ended system design, more in favor of "business landing + engineering implementation details", if you know enough about Fortinet's business before the interview, it will be a big plus. If you know enough about Fortinet's business before the interview, you will get a lot of points.
Special note: no LeetCode, but not easy!
Many students heard that Fortinet does not have traditional Coding interviews and then relaxed, in fact, wrong. Fortinet in the OA on the "test clean" algorithmic questions, subsequent interviews are all biased towards the basic, underlying, system architecture, etc., is the overall basic computer skills of the full range of assessment.
Question Recall + Idea Breakdown
Topic 1: Unmonitored Service
A financial firm experienced a breach due to an unmonitored service on port 8080, bypassing the existing firewall and Intrusion Prevention System (IPS). What specific command configuration should be implemented to prevent similar attacks and enhance the firm's network security?
Pick ONE option.
A. Add a honeypot by executing docker run -d -p 8080:8080 dtagdevsec/honeypot to monitor and analyze traffic on port 8080.
B. Update the firewall rule set with iptables -A INPUT -p tcp --dport 8080 -j LOG to log all access attempts on port 8080.
C. Deploy a VPN on port 8080 using the command vpnserver start --port 8080 to secure the communication.
D. Configure the IPS to ignore port 8080 by applying ips config --ignore-port 8080.
Topic 2: Compromised Financial Data
Your company has been hacked by a cybercriminal. All the financial data on the servers is encrypted with CryptoLocker ransomware. It turns out that the hacker was able to break through the perimeter by exploiting a vulnerability in the office printer and establishing an SSH channel to the office's computer. It turns out that the hacker was able to break through the perimeter by exploiting a vulnerability in the office printer and establishing an SSH channel to [content cut off]. What are the measures you could apply to stop the hacker from moving laterally?
Pick ONE option.
A. Install a stateful firewall to block unused ports between your office network and the Internet.
B. Set up the VLANs, ACLs and perform the segmentation of the internal network.
C. Issue an email to all office staff instructing them to use only trusted software/firmware.
D. Install network discovery tools to timely eliminate the firmware vulnerability.
Topic 3: Unknown Access Point
You are a network engineer at a large bank. You have set up a well-protected wireless network that uses a Radius server for authentication. You have set up a well-protected wireless network that uses a Radius server for authentication. You find an unknown access point that is broadcasting your SSID in the affected area. You shut down the access point and the users confirm the network works again. Is there anything else you should do after you close the tickets?
Pick ONE option.
A. Since the AP is shut down, nothing else is needed.
B. Ask users to change passwords when they have a moment.
C. Solve question 4 high-priority security incident. Act according to the pre-established plan.
D. Reboot all the wireless APs immediately. Schedule a Radius reboot at night to eliminate the root cause.
Topic 4: Unreachable ATMs
You are using SNMP protocol for collecting data from an ATM network. The network consists of 730 ATMs across the city. What would be the likely reason for that?
Pick ONE option.
A. The monitoring server is down.
B. The network switch servicing that ATM segment is down.
C. The DNS Server is down.
D. The SNMP server's gateway is down.
E. It seems like someone is trying to hack your network.
Topic 5: Java Networking
This code sends a message from the client to the server.
import java.io.*;
import java.net.*;
public class Server {
public static void main(String[] args) {
try {
ServerSocket serverSocket = new ServerSocket(9999);
Socket socket = serverSocket.accept(); BufferedReader in = new ServerSocket(9999)
BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
String message = in.readLine(); System.out.println(); String message = in.
System.out.println("Client: " + message);
String message = in.readLine(); System.out.println("Client: " + message); socket.close();
serverSocket.close(); serverSocket.close(); } catch (IOException e)
} catch (IOException e) {
e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); }
}
}
}
What is the output on the server side?
What is the result of compiling and/or running this code?
public class Generic {
public class Generic { private T value; public Generic(T value) {
public Generic(T value) {
this.value = value; }
}
public T getValue() {
return value; } public T getValue() { this.value = value; }
}
}
import java.util.
public class Main {
public static void main(String args[]) {
Generic g1 = new Generic(10);
Generic g2 = new Generic("Hello");
g.add(g1);
g.add(g2); int i = (Integer)g2 = new Generic("Hello")
int i = (Integer)g.get(0).getValue();
String s = (String)g.get(1).getValue();
System.out.println(s);
System.out.println(s); System.out.println(i);
}
}
Programhelp Help you to get Fortinet technical post|Focus on OA + Interview Practice Aid
We are a professional team focusing on technical interview assistance, and have successfully helped hundreds of students pass the process of Fortinet, Amazon, Stripe, Databricks and other first-tier tech companies, especially good at dealing with the challenges of written exams & interviews for system-oriented + engineering implementation positions.
For Fortinet, we offer:
OA Customized ghostwritingThe program is based on the real questions, with complete solutions, submission strategies and debugging support, covering C++ / Python / Java languages.
Technical Real-world AidIt supports voice paraphrase + answer idea prompts, simulates the real interview Q&A rhythm, and improves the on-the-spot reaction and expression logic.
System Design Explanation & Expression TrainingThis is to help you clearly express your key technology choices by organizing scenarios and building frameworks in advance for Fortinet's business-oriented SD topics.
Resume Optimization + Advice on Highly Passable Submissions: Directional recommendation of jobs, avoiding the waste of time by sea casting, and accurately sprinting to the target department/position.
If you are also preparing for Fortinet or other engineering oriented / system development positions, please feel free to Contact us Receive sample high-frequency questions, mock question explanations or schedule one-on-one interview support, we'll not only get you writing, but also answering and speaking!