How to implement anti-cheating and security verification functions in online quizzes

Title: Implementation of answering anti-cheating and security verification functions in online answering It has been widely used in recruitment and examination units. However, due to the convenience of use, it also provides some criminals with the opportunity to seek benefits from it, such as using cheating methods. Therefore, the anti-cheating and security verification functions in the online answering system are particularly important. This article will introduce how to implement anti-cheating and security verification functions in answering questions, and provide specific code examples.

1. Implementation of anti-cheating function in answering questions

Randomization of questions

The online answering system should randomize the order of options for multiple-choice questions and fill-in-the-blank questions, so that It can reduce the possibility of using plug-in tools to automatically answer the question answering system.

1. Image Verification Code
   Before the user logs in or submits an answer, the user is required to correctly enter the image verification code. The picture verification code can be a picture containing characters and numbers, which the user needs to correctly identify and enter. This can effectively prevent malicious attacks by robots.
2. Time limit
   Set the time limit for answering questions and force users to complete the answers within the specified time. If the user exceeds the time limit, the system will automatically submit the answer. This reduces the possibility of users using plug-in tools.
3. 
   Code example (Python):

import time

def display_question():
    # 显示题目
    pass

def check_answer():
    # 检查答案
    pass

def main():
    # 设置答题时间限制为10分钟
    time_limit = 10 * 60

    start_time = time.time()
    while True:
        current_time = time.time()
        elapsed_time = current_time - start_time

        if elapsed_time > time_limit:
            print("时间已到，自动提交答案")
            check_answer()
            break

        display_question()
        # 用户输入答案的代码逻辑

if __name__ == "__main__":
    main()

2. Implementation of security verification function

User login verification

Requires users to answer questions online Log in to the system and verify the user's identity. User name and password, mobile phone verification code or other verification methods can be used to implement user login verification.

1. IP Restrictions
   Set IP restrictions to only allow users in a specific IP range to access and participate in answering questions. This can prevent some malicious attackers from attacking or cheating the answering system by controlling multiple IP addresses.
2. User Behavior Monitoring
   Monitor the user's behavior, such as recording the user's answering time, answering speed and other information. If abnormal behavior occurs (such as a large number of test questions completed in a unit of time), the user's answer can be suspended and manual review can be performed.
3. 
   Code example (Python):

def user_login(username, password):
    # 用户登录验证的代码逻辑
    pass

def check_ip(ip_address):
    # 检查IP范围的代码逻辑
    pass

def record_user_behavior(username, behavior):
    # 记录用户行为的代码逻辑。
    pass

def main():
    # 用户登录验证
    username = input("请输入用户名：")
    password = input("请输入密码：")

    if user_login(username, password):
        print("登录成功")
    else:
        print("用户名或密码错误")

    # IP限制
    ip_address = input("请输入IP地址：")
    if check_ip(ip_address):
        print("IP验证通过")
    else:
        print("IP验证失败")

    # 用户行为监控
    behavior = input("请输入用户行为：")
    record_user_behavior(username, behavior)

if __name__ == "__main__":
    main()

Conclusion:

The anti-cheating and security verification functions in the online answering system are important means to ensure the security of the answering system. Through the comprehensive application of question randomization, picture verification codes, time limits, user login verification, IP restrictions and user behavior monitoring, the occurrence of cheating can be effectively reduced and the accuracy and fairness of the answer results can be ensured. At the same time, these functional measures need to be constantly updated and improved to deal with the emerging new cheating methods.

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