정보보안기사 필기 - 보안기사 모의고사 문제풀이 해설
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About this app
For the Information Security Engineer written exam, passing depends more on which subjects you choose not to skip than on how many questions you solve.
The Information Security Engineer written exam consists of 100 questions in 150 minutes, with 20 questions per subject across five subjects. Scoring less than 40 points in any single subject results in a failing grade, and you must achieve an average score of over 60 points across all subjects to pass. It is an exam where failing just one of the five subjects renders the scores from the other four useless.
Therefore, this app did not focus on increasing the number of questions. It is designed to show you which subjects and chapters are your current weaknesses and to retrieve questions you have already solved just before you forget them. The cognitive science-based FSRS algorithm analyzes the forgetting curve for each question to automatically determine the optimal time for review.
[Key Features]
1,215 Questions, Full Range of 5 Subjects
Learn the full range of 5 subjects, including System Security, Network Security, Application Security, General Information Security, and Information Security Management and Regulations. You can master key concepts and question types evenly through in-house questions created by analyzing exam standards.
Detailed Explanations for All Questions
Explanations are provided for all 1,215 questions. You can learn by understanding why that answer is correct and why the other options are incorrect, rather than just checking the correct answer and moving on.
Real Mock Exams
You take the exam with the same format as the actual test: 100 questions and 150 minutes. Results are calculated by applying the passing score of 40 points per subject and an overall average of 60 points, and your exam history is managed. You can check where your score stands before heading to the test center.
Analysis of Unit Frequency by Subject
Check which units appear frequently by subject. This allows you to determine where to start when you are short on time.
Various Solution Modes
You can choose to solve problems by subject or unit, and your progress and proficiency levels are displayed for each unit. You can start with unsolved questions or select weak units for intensive study. Continue Solving
It remembers your progress even if you stop solving problems. When you return, you can resume your study immediately from where you left off.
FSRS Smart Review
It extends the review interval for questions you answer correctly and quickly revisits questions you frequently get wrong. It analyzes the forgetting curve for each question to automatically schedule the questions for today's review.
Review Notifications
It provides reminders for your daily study time and sends notifications at review times calculated by FSRS. This allows you to maintain a consistent study flow and review cycle.
Weakness Analysis Heatmap
Check the correct answer rate by subject and unit at a glance. Visually identify your weak areas and jump directly to the solutions for those units. Since this is an exam with a minimum passing score, it is important not to neglect your weak subjects.
Review Box & Question Notes
Gather incorrect answers and questions to review in one place. You can find the questions you need using sorting and filters, and leave your own notes for each question to review the reasons for confusion and the concepts you have organized together. Review Badges
Badges indicate how many times you have solved each problem. You can manage your review cycles by distinguishing between problems you have reviewed repeatedly and those you are not yet familiar with.
Study Reports and Growth Records
Review your daily study through study records, weakness diagnoses, and today's growth reports. You can track your study flow and growth process by looking at your accumulating records.
Learning Statistics and Continuous Study
Check your daily problem-solving count, accuracy rate trends, and consecutive study days. You can manage consistent study habits by recording your daily study volume and performance changes.
Exam Schedule D-Day
Check the upcoming Information Security Engineer written exam schedule directly on the home screen. You can review your study plans and progress based on the remaining days.
Pre-Exam Checklist
As the exam approaches, a checklist appears on the home screen. You can calmly prepare for the day of the exam by checking your supplies and mindset one by one.
1:1 Inquiries and FAQs
Check frequently asked questions within the app and ask questions immediately. You can attach photos to your inquiries, and receive notifications when answers are registered. Adjust Font Size
You can adjust the font size to make reading questions and explanations easier. You can select a size that fits your screen and learning environment.
Light and Dark Themes
You can follow system settings or choose your preferred theme. You can study comfortably in bright or dark environments.
Tablet Support
You can study with a layout optimized for large screens on tablets as well as mobile phones.
Offline Learning
You can solve problems even without an internet connection. You can continue your studies uninterrupted, even on subways or airplanes.
Device Synchronization
Your study records and review schedules are saved once you log in. You can retrieve your existing records and continue studying even if you switch devices or use both a phone and a tablet.
[Content Guide]
This app does not include past exam questions. This is because the copyright for past questions belongs to the administering body, so copying and pasting them as is is not permitted. Instead, we have analyzed the criteria for the written exam for the Information Security Engineer certification and created study questions tailored to the format and difficulty level of the actual exam. The questions are composed of core question types with a high probability of appearing on the exam, and we do not restore or duplicate past questions. [Recommended for]
Those preparing for the Information Security Engineer written exam for the first time
Office workers aiming to pass through self-study
Those worried about failing and want to identify their weak subjects
Those who gave up because managing incorrect answers was cumbersome
Those who want to study briefly using their commute time
(c) 2026 DAYLAB, contact@daylab.dev
[Terms and Policies]
Terms of Use: https://dayprep.co/boan/terms
Privacy Policy: https://dayprep.co/boan/privacy
[Content Source and Non-Governmental Information]
This app is an independent private learning tool designed to assist with studying for the Information Security Engineer written exam. It has no affiliation, sponsorship, or approval relationship with government or public institutions, such as the Korea Communications Commission (KCA), and does not represent any of them. It does not act as a representative of government agencies or political organizations, nor does it guarantee passing. Please check the latest announcements from the administering agency below for the exam schedule and detailed criteria.
Official exam schedule, registration, and subject information: https://www.cq.or.kr/qh_quagm01_019.do
The Information Security Engineer written exam consists of 100 questions in 150 minutes, with 20 questions per subject across five subjects. Scoring less than 40 points in any single subject results in a failing grade, and you must achieve an average score of over 60 points across all subjects to pass. It is an exam where failing just one of the five subjects renders the scores from the other four useless.
Therefore, this app did not focus on increasing the number of questions. It is designed to show you which subjects and chapters are your current weaknesses and to retrieve questions you have already solved just before you forget them. The cognitive science-based FSRS algorithm analyzes the forgetting curve for each question to automatically determine the optimal time for review.
[Key Features]
1,215 Questions, Full Range of 5 Subjects
Learn the full range of 5 subjects, including System Security, Network Security, Application Security, General Information Security, and Information Security Management and Regulations. You can master key concepts and question types evenly through in-house questions created by analyzing exam standards.
Detailed Explanations for All Questions
Explanations are provided for all 1,215 questions. You can learn by understanding why that answer is correct and why the other options are incorrect, rather than just checking the correct answer and moving on.
Real Mock Exams
You take the exam with the same format as the actual test: 100 questions and 150 minutes. Results are calculated by applying the passing score of 40 points per subject and an overall average of 60 points, and your exam history is managed. You can check where your score stands before heading to the test center.
Analysis of Unit Frequency by Subject
Check which units appear frequently by subject. This allows you to determine where to start when you are short on time.
Various Solution Modes
You can choose to solve problems by subject or unit, and your progress and proficiency levels are displayed for each unit. You can start with unsolved questions or select weak units for intensive study. Continue Solving
It remembers your progress even if you stop solving problems. When you return, you can resume your study immediately from where you left off.
FSRS Smart Review
It extends the review interval for questions you answer correctly and quickly revisits questions you frequently get wrong. It analyzes the forgetting curve for each question to automatically schedule the questions for today's review.
Review Notifications
It provides reminders for your daily study time and sends notifications at review times calculated by FSRS. This allows you to maintain a consistent study flow and review cycle.
Weakness Analysis Heatmap
Check the correct answer rate by subject and unit at a glance. Visually identify your weak areas and jump directly to the solutions for those units. Since this is an exam with a minimum passing score, it is important not to neglect your weak subjects.
Review Box & Question Notes
Gather incorrect answers and questions to review in one place. You can find the questions you need using sorting and filters, and leave your own notes for each question to review the reasons for confusion and the concepts you have organized together. Review Badges
Badges indicate how many times you have solved each problem. You can manage your review cycles by distinguishing between problems you have reviewed repeatedly and those you are not yet familiar with.
Study Reports and Growth Records
Review your daily study through study records, weakness diagnoses, and today's growth reports. You can track your study flow and growth process by looking at your accumulating records.
Learning Statistics and Continuous Study
Check your daily problem-solving count, accuracy rate trends, and consecutive study days. You can manage consistent study habits by recording your daily study volume and performance changes.
Exam Schedule D-Day
Check the upcoming Information Security Engineer written exam schedule directly on the home screen. You can review your study plans and progress based on the remaining days.
Pre-Exam Checklist
As the exam approaches, a checklist appears on the home screen. You can calmly prepare for the day of the exam by checking your supplies and mindset one by one.
1:1 Inquiries and FAQs
Check frequently asked questions within the app and ask questions immediately. You can attach photos to your inquiries, and receive notifications when answers are registered. Adjust Font Size
You can adjust the font size to make reading questions and explanations easier. You can select a size that fits your screen and learning environment.
Light and Dark Themes
You can follow system settings or choose your preferred theme. You can study comfortably in bright or dark environments.
Tablet Support
You can study with a layout optimized for large screens on tablets as well as mobile phones.
Offline Learning
You can solve problems even without an internet connection. You can continue your studies uninterrupted, even on subways or airplanes.
Device Synchronization
Your study records and review schedules are saved once you log in. You can retrieve your existing records and continue studying even if you switch devices or use both a phone and a tablet.
[Content Guide]
This app does not include past exam questions. This is because the copyright for past questions belongs to the administering body, so copying and pasting them as is is not permitted. Instead, we have analyzed the criteria for the written exam for the Information Security Engineer certification and created study questions tailored to the format and difficulty level of the actual exam. The questions are composed of core question types with a high probability of appearing on the exam, and we do not restore or duplicate past questions. [Recommended for]
Those preparing for the Information Security Engineer written exam for the first time
Office workers aiming to pass through self-study
Those worried about failing and want to identify their weak subjects
Those who gave up because managing incorrect answers was cumbersome
Those who want to study briefly using their commute time
(c) 2026 DAYLAB, contact@daylab.dev
[Terms and Policies]
Terms of Use: https://dayprep.co/boan/terms
Privacy Policy: https://dayprep.co/boan/privacy
[Content Source and Non-Governmental Information]
This app is an independent private learning tool designed to assist with studying for the Information Security Engineer written exam. It has no affiliation, sponsorship, or approval relationship with government or public institutions, such as the Korea Communications Commission (KCA), and does not represent any of them. It does not act as a representative of government agencies or political organizations, nor does it guarantee passing. Please check the latest announcements from the administering agency below for the exam schedule and detailed criteria.
Official exam schedule, registration, and subject information: https://www.cq.or.kr/qh_quagm01_019.do
Repeatedly study your subject-specific weaknesses with the Information Security Engineer written mock exams and FSRS smart review.
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About the developer
심다송
contact@daylab.dev
바우뫼로 91, 1층 10,11호
서초구, 서울특별시 06751
South Korea
