Search test library by skills or roles
⌘ K

About the test:

软件系统设计在线测试使用基于方案的MCQ来评估候选人在设计满足功能和非功能要求的软件系统方面的熟练程度。该测试评估了候选人识别系统要求,选择适当的架构和设计模式并创建高级设计规范的能力。它着重于数据库设计,数据建模,系统集成,安全性,性能优化和质量保证。

Covered skills:

  • 系统设计
  • 网络协议
  • 分布式系统
  • 性能优化
  • 算法和数据结构
  • 数据库设计
  • 云计算
  • 微服务体系结构

9 reasons why
9 reasons why

Adaface System Design Test is the most accurate way to shortlist 软件工程师s



Reason #1

Tests for on-the-job skills

The System Design Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

  • 能够设计可扩展有效的系统体系结构
  • 能够分析和优化分布式系统中的性能
  • 熟练设计和实施数据库模式
  • 熟练理解和利用网络协议
  • 云计算技术和概念的专业知识
  • 知识渊博的微服务体系结构原理
  • 能够应用算法和数据结构来解决复杂的问题
  • 能够在系统设计中优化性能
  • 与大型分布式系统合作的经验
  • 精通设计容忍和高度可用的系统
Reason #2

No trick questions

no trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

View sample questions

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface
Reason #3

Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

这些只是我们库中有10,000多个问题的一个小样本。关于此的实际问题 软件系统设计在线测试 将是不可行的.

🧐 Question

Medium

Optimal Data Replication and Consistency in Distributed Systems
Data Consistency
Load Balancing
Fault Tolerance
Solve
Consider a distributed e-commerce platform designed to handle high traffic volumes and ensure data consistency across its services. The platform uses a distributed database that replicates data across multiple nodes to increase availability and performance. To balance the load, it employs a load balancer that distributes user requests evenly across these nodes. The system is designed to tolerate the failure of up to two nodes without affecting the platform's overall availability.

Given the critical requirement for strong consistency to prevent issues such as overselling of products, the system uses a consensus algorithm for replication. The database is configured with a replication factor of 5, meaning each piece of data is stored on 5 nodes. For read and write operations to be considered successful, they must be acknowledged by a majority of the nodes involved in the operation.

Assuming all nodes have equal hardware resources and network latency between nodes is negligible, which of the following configurations would best meet the platform's requirements for high availability, performance, and strong consistency?
A: Reads require acknowledgment from 2 nodes, and writes require acknowledgment from 4 nodes.
B: Reads and writes both require acknowledgment from 3 nodes.
C: Reads require acknowledgment from 3 nodes, and writes require acknowledgment from 2 nodes.
D: Reads and writes both require acknowledgment from 4 nodes.
E: Reads require acknowledgment from 1 node, and writes require acknowledgment from 5 nodes.
F: Reads and writes both require acknowledgment from 5 nodes.

Easy

Real-time Vehicle Tracking for Logistics Company
Data Storage
Scalability
Real-time Updates
NoSQL
Solve
TransitTrack is a logistics company that needs to store real-time location data (latitude, longitude) of their vehicles as they move across the city. The system should be optimized for fast read and write operations to provide real-time tracking. TransitTrack can tolerate occasional data loss since the vehicle locations are updated frequently. Which of the following data storage solutions should TransitTrack implement for their vehicle tracking system?
A: Utilize a relational database management system (RDBMS) like PostgreSQL with a table indexed on the vehicle_id column for efficient data insertion and retrieval.
B: Implement an in-memory cache like Redis to store the vehicle location data, with the vehicle_id as the key and the latitude-longitude pair as the value.
C: Use a document-oriented database like MongoDB to store the vehicle location data as GeoJSON documents, enabling geospatial querying capabilities.
D: Develop a custom in-memory data structure using a spatial indexing technique like an R-tree to store and query the vehicle location data efficiently.
E: Use a time-series database like InfluxDB to store the vehicle location data along with timestamps, allowing for efficient querying and analysis of historical location data.

Medium

Session stickiness with ELB
Cookies
Solve
Johnny Bravo is setting up a new e-commerce store for men's clothing. He set up session stickiness with ELB. But he does not want ELB to manage the cookie, he wants the application to manage the cookie. When the server instance, which is bound to a cookie, crashes what do you expect will happen?
A: ELB will throw an error due to cookie unavailability
B: The response will have a cookie but stickiness will be deleted
C: The session will be sticky and ELB will route requests to another server as ELB keeps replicating the Cookie
D: The session will not be sticky until a new cookie is inserted

Medium

Updating UI after Encoding
UI Design
Decoupling
Solve
Imagine you’re a developer at Songbird Inc, working on a music editing app for mobile devices. The app allows users to edit audio clips and export them in various audio formats. Once a user finishes editing a clip, they can choose an output format and initiate the encoding process. This encoding process can take a while depending on the chosen format and the length of the clip. Because it’s a mobile app, you want to avoid freezing the UI while encoding is in progress.

What’s the most appropriate approach to notify the user when the encoding is complete and the exported file is ready?
A: Directly modify the UI elements from within the encoding logic. When encoding finishes, the encoding system can directly tell the UI components to update themselves with the new information (e.g., change a button text to “Export Complete”).
B: Separate the UI update logic from the encoding process. The encoding system should trigger a custom event (e.g., “EncodingFinishedEvent”) upon completion. UI components can listen for this event and update themselves accordingly when it’s received.
C:  Have the UI code continuously check on the encoding status with a loop (often referred to as busy waiting or polling). The loop would keep checking a flag or variable set by the encoding system until the encoding is complete. Once complete, the UI can update itself.
D:  Introduce a central message queue or event bus. The encoding system can publish a message to the message queue upon finishing the task. Separate UI update logic would be subscribed to the queue, listening for relevant messages. When it receives the message about encoding completion, it can update the UI.
E: Let the encoding logic return a callback function to the UI layer when it’s initiated. Once encoding is finished, the encoding system calls back this function, allowing the UI to update itself.

Medium

Decryptor
Strings
Solve
What does the following pseudo code print?
 image

Hard

Fibonacci codes
Time Complexity
Pseudo Code
Solve
Here are three pseudocodes for calculating the Nth Fibonacci number. Which of the following statements about these codes are true?
 image
A: Time complexity/efficiency of CODE 1, CODE 2, CODE 3 is the same.
B: CODE 2 is more space-efficient than CODE 3.
C: CODE 3 is more space-efficient than CODE 2.
D: CODE 2 is more time-efficient than CODE 1.
E: CODE 3 is more time-efficient than CODE 1.

Hard

Palindrome Test cases
Strings
Solve
Go through the following faulty palindrome detection pseudocode and test cases. For which of the test cases would the code return true?
 image
Testcases
A: a
B: aba
C: aaa
D: aac

Medium

Rewards Activities Order
Database Connection
Solve
A new popular app tracks the activities performed by its users and grants them rewards based on each individual's total activities performed in a year. This data is maintained in a database table (activitesinfo), with the following columns: userid, totalactivities, reward. This year, due to fundraising activity, the company has decided to further reward its users by enhancing the reward as per the following formula: If reward < = 4000, increase it by 2%, If 4000 < reward <= 8000, increase it by 4%, If reward > 8000, increase it by 6%.
The tech team has written three different scripts to calculate increment for each slab, each script is to run as a separate transaction. Here are the three scripts:
Script 1:
For users with reward <= 4000, set reward = reward * 1.02

Script 2:
For users with reward > 4000 and reward <= 8000, set reward = reward * 1.04

Script 3:
For users with reward > 8000, set reward = reward * 1.06
Each script is to be executed separately. Which of the following options will update the rewards as expected:
A: Execute Script 1 followed by Script 2 followed by Script 3
B: Execute Script 2 followed by Script 3; Script 1 running concurrently throughout
C: Execute Script 3 followed by Script 2; Script 1 running concurrently throughout
D: Execute Script 3 followed by Script 2 followed by Script 1
E: Execute Script 2 followed by Script 3 followed by Script 1

Hard

Graph Traversal and Data Storage
Graph Theory
Algorithm Analysis
Solve
Consider the following pseudo code implementing a specific graph traversal algorithm:
 image
What is the order in which the nodes are processed, and which data structure best represents the graph `G` for efficient traversal?

Medium

Implementing a Browser's Back Button
Stack
Data Handling
Solve
You are tasked with implementing the "Back" button functionality in a web browser. This feature allows users to return to previously visited web pages in the order they were viewed. The browser maintains a history of URLs in a data structure. Considering the nature of web browsing, where users can go back multiple steps and then navigate to a new page (at which point the future history should be cleared), which data structure and algorithm would best implement this functionality?
A: Use a heap, add the current URL when navigating to a new page, and remove the top element when the back button is used.
B: Use a queue, enqueue the current URL when navigating to a new page, and dequeue when the back button is used.
C: Use a single stack, push the current URL when navigating to a new page, and pop when the back button is used.
D: Use an array, add the current URL to the end when navigating to a new page, and remove the last URL when the back button is used.
E: Use a linked list, add the current URL to the head when navigating to a new page, and move backwards when the back button is used.
F: Use two stacks, push the current URL to the first stack when navigating to a new page, and use the second stack to store the pages when the back button is used.

Easy

Linked List Element Removal
Linked Lists
Element Removal
Solve
Consider a singly linked list where each node contains an integer value. Write a function `removeElement` that removes all occurrences of a specific value from the linked list. The function should return the head of the modified linked list.

Pseudo code:
 image
What will be the content of the linked list referred to by `result` after executing the above pseudo code?
🧐 Question🔧 Skill

Medium

Optimal Data Replication and Consistency in Distributed Systems
Data Consistency
Load Balancing
Fault Tolerance

2 mins

System Design
Solve

Easy

Real-time Vehicle Tracking for Logistics Company
Data Storage
Scalability
Real-time Updates
NoSQL

2 mins

System Design
Solve

Medium

Session stickiness with ELB
Cookies

2 mins

System Design
Solve

Medium

Updating UI after Encoding
UI Design
Decoupling

2 mins

System Design
Solve

Medium

Decryptor
Strings

2 mins

Technical Aptitude
Solve

Hard

Fibonacci codes
Time Complexity
Pseudo Code

2 mins

Technical Aptitude
Solve

Hard

Palindrome Test cases
Strings

2 mins

Technical Aptitude
Solve

Medium

Rewards Activities Order
Database Connection

3 mins

Technical Aptitude
Solve

Hard

Graph Traversal and Data Storage
Graph Theory
Algorithm Analysis

3 mins

Data Structures
Solve

Medium

Implementing a Browser's Back Button
Stack
Data Handling

2 mins

Data Structures
Solve

Easy

Linked List Element Removal
Linked Lists
Element Removal

2 mins

Data Structures
Solve
🧐 Question🔧 Skill💪 Difficulty⌛ Time
Optimal Data Replication and Consistency in Distributed Systems
Data Consistency
Load Balancing
Fault Tolerance
System Design
Medium2 mins
Solve
Real-time Vehicle Tracking for Logistics Company
Data Storage
Scalability
Real-time Updates
NoSQL
System Design
Easy2 mins
Solve
Session stickiness with ELB
Cookies
System Design
Medium2 mins
Solve
Updating UI after Encoding
UI Design
Decoupling
System Design
Medium2 mins
Solve
Decryptor
Strings
Technical Aptitude
Medium2 mins
Solve
Fibonacci codes
Time Complexity
Pseudo Code
Technical Aptitude
Hard2 mins
Solve
Palindrome Test cases
Strings
Technical Aptitude
Hard2 mins
Solve
Rewards Activities Order
Database Connection
Technical Aptitude
Medium3 mins
Solve
Graph Traversal and Data Storage
Graph Theory
Algorithm Analysis
Data Structures
Hard3 mins
Solve
Implementing a Browser's Back Button
Stack
Data Handling
Data Structures
Medium2 mins
Solve
Linked List Element Removal
Linked Lists
Element Removal
Data Structures
Easy2 mins
Solve
Reason #4

1200+ customers in 75 countries

customers in 75 countries
Brandon

借助 Adaface,我们能够将初步筛选流程优化达 75% 以上,为招聘经理和我们的人才招聘团队节省了宝贵的时间!


Brandon Lee, 人事主管, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment 软件系统设计在线测试 in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Science behind Adaface tests
Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the 软件系统设计在线测试 from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

invite candidates
Reason #7

Detailed scorecards & benchmarks

查看样本记分卡
Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

test completion rate
Reason #9

Advanced Proctoring


Learn more

About the System Design Assessment Test

Why you should use Pre-employment System Design Online Test?

The 软件系统设计在线测试 makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

  • 熟练系统设计概念和原理
  • 设计可扩展和分布式系统的能力
  • 了解各种网络协议及其实施
  • 具有数据库设计和优化技术的经验
  • 熟悉云计算平台和服务
  • 对算法和数据结构的强烈了解
  • 性能优化和调整方面的专业知识
  • 微服务体系结构的实践经验
  • 了解分布式系统及其挑战
  • 深入了解系统安全并保护威胁

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the System Design Online Test?

  • 算法和数据结构

    算法和数据结构用于设计和分析有效的算法和组织数据以进行最佳存储和检索。精通此技能至关重要,因为它增强了解决问题的能力和辅助编写代码,以最少的资源来表现最佳性能。

  • 网络协议

    网络协议是一组规则,是一组规则网络中设备之间的通信。了解网络协议对于设计可以有效交换数据,确保安全可靠的通信的系统至关重要。

  • 数据库设计

    数据库设计是创建数据结构化表示并定义的过程不同实体之间的关系。它涉及创建有效的模式,以支持数据完整性,查询和索引以优化的存储和检索。

  • 分布式系统

    分布式系统由多个互连组件组成,这些组件共同起作用,这些组件共同使用,以实现共同点目标。衡量该技能的熟练程度很重要,因为它可以确保对诸如一致性,容错性和负载平衡等概念的理解,这对于构建可扩展且有弹性的应用至关重要。

  • 云计算

    云计算涉及通过Internet提供按需计算资源。熟练程度能够有效利用基于云的服务和基础架构,从而导致可扩展性,成本优化和应用程序的性能增强。

  • 性能优化

    性能优化侧重于改进系统的速度和效率。精通此技能的能力有助于识别和解决瓶颈,优化算法和消除冗余操作,从而导致更快的执行和减少资源消耗。

  • 微服务体系结构

    microServices架构是一种建筑方法在申请中作为小型,松散耦合服务的集合构建的地方。熟练此技能可以独立地部署,修改和缩放不同组件时可扩展性,容错性和灵活性。

  • Full list of covered topics

    The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for 软件系统设计在线测试 to be based on.

    系统设计
    负载均衡
    缓存
    可伸缩性
    数据库碎片
    一致性模型
    分布式文件系统
    MapReduce
    盖定理
    共识算法
    网络协议
    TCP/IP
    http
    DNS
    Websocket
    数据库设计
    关系数据库
    NOSQL数据库
    索引
    查询优化
    酸交易
    分布式系统
    消息队列
    最终的一致性
    复制
    容错
    分布式锁定
    云计算
    虚拟化
    容器
    无服务器计算
    弹性
    微服务体系结构
    服务发现
    API网关
    事件驱动的架构
    断路器模式
    性能优化
    负载测试
    分析
    缓存策略
    分布式跟踪
    可伸缩性测试
    微服务编排
    监视和警报
    微服务安全
    算法和数据结构
    排序算法
    搜索算法
    图算法
    树数据结构
    哈希
    动态编程
    网络流
    云计算基本面
    性能监控
    安全最佳实践
    API设计
    服务等级协定
    容器化技术
    连续整合和交付

What roles can I use the System Design Online Test for?

  • 软件工程师
  • 系统架构师
  • 技术领导
  • 完整的堆栈开发人员
  • DevOps工程师
  • 数据库管理员
  • 网络管理员
  • 云工程师
  • 安全分析师
  • 性能工程师

How is the System Design Online Test customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

  • 对软件体系结构模式的扎实理解
  • 分析和优化应用程序性能的能力
  • 与大规模数据处理系统合作的经验
  • 了解缓存机制和策略的知识
  • 能够设计和实施耐故障系统
  • 能够熟练容器化和编排技术
  • 设计和管理分布式数据库方面的专业知识
  • 了解事件驱动和异步体系结构
  • 能够解决和调试复杂系统问题的能力
  • 设计高可用和可扩展服务的经验
Singapore government logo

招聘经理认为,通过小组面试中提出的技术问题,他们能够判断哪些候选人得分更高,并与得分较差的候选人区分开来。他们是 非常满意 通过 Adaface 筛选入围的候选人的质量。


85%
减少筛查时间

System Design Hiring Test 常见问题解答

我可以将多个技能结合在一起,为一个自定义评估吗?

是的,一点没错。自定义评估是根据您的职位描述进行的,并将包括有关您指定的所有必备技能的问题。

您是否有任何反交换或策略功能?

我们具有以下反交易功能:

  • 不可解决的问题
  • IP策略
  • Web Protoring
  • 网络摄像头Proctoring
  • 窃检测
  • 安全浏览器

阅读有关[Proctoring功能](https://www.adaface.com/proctoring)的更多信息。

如何解释考试成绩?

要记住的主要问题是评估是消除工具,而不是选择工具。优化了技能评估,以帮助您消除在技术上没有资格担任该角色的候选人,它没有进行优化以帮助您找到该角色的最佳候选人。因此,使用评估的理想方法是确定阈值分数(通常为55%,我们为您提供基准测试),并邀请所有在下一轮面试中得分高于门槛的候选人。

我可以使用该测试的经验水平?

每个ADAFACE评估都是为您的职位描述/理想候选角色定制的(我们的主题专家将从我们的10000多个问题的图书馆中选择正确的问题)。可以为任何经验级别定制此评估。

每个候选人都会得到同样的问题吗?

是的,这使您比较候选人变得容易得多。 MCQ问题的选项和问题顺序是随机的。我们有[抗欺骗/策略](https://www.adaface.com/proctoring)功能。在我们的企业计划中,我们还可以选择使用类似难度级别的问题创建多个版本的相同评估。

我是候选人。我可以尝试练习测试吗?

不,不幸的是,我们目前不支持实践测试。但是,您可以使用我们的[示例问题](https://www.adaface.com/questions)进行练习。

使用此测试的成本是多少?

您可以查看我们的[定价计划](https://www.adaface.com/pricing/)。

我可以免费试用吗?

我刚刚搬到了一个付费计划。我如何要求自定义评估?

customers across world
Join 1200+ companies in 75+ countries.
立即尝试最候选的友好技能评估工具。
g2 badges
Ready to use the Adaface 软件系统设计在线测试?
Ready to use the Adaface 软件系统设计在线测试?
logo
40 min tests.
No trick questions.
Accurate shortlisting.
术语 隐私 信任指南

🌎选择您的语言

English Norsk Dansk Deutsche Nederlands Svenska Français Español Chinese (简体中文) Italiano Japanese (日本語) Polskie Português Russian (русский)
ada
Ada
● Online
Previous
Score: NA
Next
✖️