Let me tell you something that most people applying for CDCFIB jobs in 2026 are not doing. They are submitting their applications, sitting back, and doing absolutely nothing to prepare for the exam. Then they show up on CBT day looking at questions they have never seen before and wondering why they failed.
Do not be that person.
You have already done the hard part by finding out about this opportunity. Now let us make sure you actually pass. In this guide I am going to give you real practice questions across every subject the CDCFIB CBT covers, full answers with explanations, and a practical breakdown of how to pass not just the written exam but also the physical screening that follows.
Read this carefully. Study it. Share it with people you care about. This could be the difference between getting that uniform and watching someone else wear it.
What the CDCFIB CBT Exam Covers in 2026
Before we get into the questions, you need to understand what subjects are tested. The CDCFIB Computer Based Test covers five core subject areas:
- English Language and Verbal Reasoning
- General Mathematics and Quantitative Reasoning
- Current Affairs and General Knowledge
- Civic Education and Nigerian Government
- History of the CDCFIB Agencies
Each section carries marks and the total number of questions is typically between 100 and 150, depending on your agency. You will have between 60 and 90 minutes to complete the test. Speed and accuracy both matter, so practicing under timed conditions is important.
Now let us get into the questions.
SECTION ONE: English Language and Verbal Reasoning
English Language is one of the highest weighted sections in the CDCFIB CBT. It tests your ability to read, understand, and communicate in written English. This is not the place to lose marks because with proper preparation, it is one of the most scoreable sections.
Question 1
Choose the word that is closest in meaning to the word DILIGENT.
A. Lazy
B. Hardworking
C. Careless
D. Noisy
Answer: B. Hardworking
Explanation: Diligent means showing careful and persistent work or effort. Hardworking is the closest synonym.
Question 2
Choose the option that correctly fills the blank.
“The officer _______ his colleagues to maintain discipline at all times.”
A. advice
B. adviced
C. advised
D. advises
Answer: C. Advised
Explanation: The sentence is in the past tense. The correct past tense form of the verb “advise” is “advised.” Option A is the noun form, and option B is a common misspelling that does not exist in standard English.
Question 3
Identify the grammatically correct sentence.
A. The recruits was marching in formation.
B. The recruits were marching in formation.
C. The recruits is marching in formation.
D. The recruits has marching in formation.
Answer: B. The recruits were marching in formation.
Explanation: “Recruits” is a plural noun and therefore requires the plural verb “were.” This is subject-verb agreement.
Question 4
Choose the antonym of the word COURAGEOUS.
A. Brave
B. Bold
C. Cowardly
D. Strong
Answer: C. Cowardly
Explanation: An antonym is the opposite of a word. Courageous means brave and fearless. Its opposite is cowardly, meaning lacking courage.
Question 5
Read the passage and answer the question.
“Immigration officers play a vital role in protecting national borders. They are responsible for monitoring the entry and exit of persons and goods across Nigerian borders. Their work ensures that only legitimate travelers gain access to the country.”
What is the main duty of immigration officers according to the passage?
A. To collect taxes at the border
B. To arrest criminals inside the country
C. To monitor the entry and exit of persons and goods at borders
D. To issue travel documents to Nigerians
Answer: C. To monitor the entry and exit of persons and goods at borders
Explanation: The passage explicitly states this as the core responsibility of immigration officers. Reading comprehension questions require you to base your answers on what is written in the passage, not on outside knowledge.
Question 6
Choose the word that is wrongly spelled.
A. Accommodation
B. Occurrence
C. Neccessary
D. Commitment
Answer: C. Neccessary
Explanation: The correct spelling is “necessary” with one C and two Ss. This is one of the most commonly misspelled words in English.
Question 7
Fill in the blank with the correct option.
“Neither the commander nor his officers _______ aware of the security breach.”
A. was
B. were
C. is
D. has
Answer: B. Were
Explanation: When using “neither…nor” the verb agrees with the noun closest to it, which is “officers.” Since “officers” is plural, the correct verb is “were.”
SECTION TWO: General Mathematics and Quantitative Reasoning
Mathematics in the CDCFIB CBT is not as complicated as WAEC or JAMB level. It focuses on basic arithmetic, simple algebra, percentages, ratios, and word problems. If you can handle everyday calculations, you will do fine here.
Question 8
What is 15% of 2,000?
A. 200
B. 300
C. 150
D. 250
Answer: B. 300
Explanation: To find 15% of 2,000, multiply 2,000 by 15 and divide by 100.
2,000 x 15 = 30,000
30,000 divided by 100 = 300
Question 9
A NSCDC officer earns N85,000 per month. How much does he earn in a year?
A. N1,000,000
B. N1,020,000
C. N980,000
D. N1,200,000
Answer: B. N1,020,000
Explanation: Multiply the monthly salary by 12 months.
85,000 x 12 = 1,020,000
Question 10
Simplify: 24 divided by 6 plus 3 multiplied by 2
A. 12
B. 14
C. 10
D. 8
Answer: C. 10
Explanation: Follow the BODMAS rule. Division and multiplication come before addition.
24 divided by 6 = 4
3 multiplied by 2 = 6
4 plus 6 = 10
Question 11
If a patrol team covers 120 kilometers in 3 hours, what is their average speed?
A. 30 km/h
B. 40 km/h
C. 50 km/h
D. 360 km/h
Answer: B. 40 km/h
Explanation: Speed = Distance divided by Time
120 divided by 3 = 40 km/h
Question 12
What is the simple interest on N50,000 at 10% per annum for 2 years?
A. N5,000
B. N10,000
C. N15,000
D. N20,000
Answer: B. N10,000
Explanation: Simple Interest = (Principal x Rate x Time) divided by 100
= (50,000 x 10 x 2) divided by 100
= 1,000,000 divided by 100
= N10,000
Question 13
A fire outbreak occurred 8 kilometers from the fire station. If a fire truck travels at 80 km/h, how many minutes will it take to reach the scene?
A. 4 minutes
B. 6 minutes
C. 8 minutes
D. 10 minutes
Answer: B. 6 minutes
Explanation: Time = Distance divided by Speed
= 8 divided by 80
= 0.1 hours
0.1 x 60 minutes = 6 minutes
Question 14
Solve for X: 3X plus 9 = 24
A. X = 3
B. X = 5
C. X = 7
D. X = 15
Answer: B. X = 5
Explanation:
3X = 24 minus 9
3X = 15
X = 15 divided by 3
X = 5
SECTION THREE: Current Affairs and General Knowledge
This section tests how aware you are of recent events in Nigeria and the world. Staying up to date with the news is your best preparation tool here.
Question 15
Who is the current President of the Federal Republic of Nigeria as of 2026?
A. Muhammadu Buhari
B. Goodluck Jonathan
C. Bola Ahmed Tinubu
D. Peter Obi
Answer: C. Bola Ahmed Tinubu
Explanation: Bola Ahmed Tinubu was inaugurated as Nigeria’s President on May 29, 2023, and remains in office as of June 2026.
Question 16
What is the capital city of Nigeria?
A. Lagos
B. Kano
C. Port Harcourt
D. Abuja
Answer: D. Abuja
Explanation: Abuja has been Nigeria’s federal capital territory since December 12, 1991, when the capital was moved from Lagos.
Question 17
How many states are in Nigeria?
A. 30
B. 34
C. 36
D. 38
Answer: C. 36
Explanation: Nigeria has 36 states and the Federal Capital Territory, Abuja.
Question 18
Which agency under CDCFIB is responsible for controlling entry into Nigeria?
A. Federal Fire Service
B. Nigeria Correctional Service
C. Nigeria Immigration Service
D. Nigeria Security and Civil Defence Corps
Answer: C. Nigeria Immigration Service
Explanation: The Nigeria Immigration Service (NIS) is responsible for border control and regulating the movement of people into and out of Nigeria.
Question 19
In what year was Nigeria’s Independence granted?
A. 1955
B. 1960
C. 1963
D. 1970
Answer: B. 1960
Explanation: Nigeria gained independence from British colonial rule on October 1, 1960. This is a foundational fact about Nigeria that every applicant should know.
Question 20
What does NIN stand for?
A. National Identification Number
B. Nigerian Identity Network
C. National Immigration Number
D. Nigerian Index Number
Answer: A. National Identification Number
Explanation: NIN stands for National Identification Number. It is issued by the National Identity Management Commission (NIMC) and is used to identify Nigerian citizens.
Question 21
Which of the following is the highest court in Nigeria?
A. Federal High Court
B. Court of Appeal
C. Supreme Court
D. Magistrate Court
Answer: C. Supreme Court
Explanation: The Supreme Court of Nigeria is the highest judicial authority in the country. Its decisions are final and binding on all lower courts.
Question 22
What year was the Nigeria Correctional Service formerly known as Nigeria Prisons Service renamed?
A. 2015
B. 2017
C. 2019
D. 2021
Answer: C. 2019
Explanation: The Nigeria Prisons Service was officially renamed the Nigeria Correctional Service in 2019 under the Nigeria Correctional Service Act signed by President Muhammadu Buhari.
SECTION FOUR: Civic Education and Nigerian Government
Question 23
What is the primary duty of the Nigeria Security and Civil Defence Corps (NSCDC)?
A. To prosecute criminals in court
B. To protect government revenue
C. To protect critical national infrastructure and provide security for citizens
D. To manage Nigerian airports
Answer: C. To protect critical national infrastructure and provide security for citizens
Explanation: The NSCDC was established primarily to protect lives, property, and critical national infrastructure such as pipelines, dams, and government facilities.
Question 24
Which arm of government is responsible for making laws in Nigeria?
A. The Executive
B. The Judiciary
C. The Legislature
D. The Military
Answer: C. The Legislature
Explanation: In Nigeria’s democratic structure, the National Assembly which consists of the Senate and House of Representatives makes up the legislative arm responsible for making laws.
Question 25
What does the Federal Fire Service do?
A. Manages forest resources
B. Responds to fire outbreaks and conducts fire prevention activities
C. Trains police officers in weapons use
D. Controls road traffic in cities
Answer: B. Responds to fire outbreaks and conducts fire prevention activities
Explanation: The Federal Fire Service is responsible for fire suppression, fire prevention education, and emergency response across Nigeria.
Question 26
The Nigerian Constitution that is currently in operation was enacted in which year?
A. 1960
B. 1979
C. 1989
D. 1999
Answer: D. 1999
Explanation: Nigeria currently operates under the 1999 Constitution, which was enacted on May 29, 1999, marking the return to democratic governance.
Question 27
What is the term for the principle that ensures no single arm of government has too much power?
A. Rule of Law
B. Separation of Powers
C. Federal Character
D. Due Process
Answer: B. Separation of Powers
Explanation: Separation of powers is the principle that divides government authority among three independent branches: the Executive, Legislature, and Judiciary, ensuring no single branch becomes too powerful.
SECTION FIVE: Agency-Specific Knowledge
Question 28
The CDCFIB acronym stands for:
A. Civil Defence, Correctional, Federal and Immigration Board
B. Civil Defence, Correctional, Fire and Immigration Services Board
C. Central Defence, Correctional, Fire and Immigration Services Board
D. Civil Defence, Criminal, Fire and Immigration Services Board
Answer: B. Civil Defence, Correctional, Fire and Immigration Services Board
Explanation: CDCFIB stands for Civil Defence, Correctional, Fire and Immigration Services Board. This is a basic fact that every applicant for any of the four agencies must know.
Question 29
What document is primarily used to identify candidates throughout the CDCFIB recruitment process?
A. International Passport
B. Voters Card
C. National Identification Number (NIN)
D. Driver’s License
Answer: C. National Identification Number (NIN)
Explanation: Throughout the entire CDCFIB jobs process in 2026, your NIN serves as your unique identifier for registration, CBT slip download, and status verification.
Question 30
Which of the following is NOT a requirement for physical screening in the CDCFIB exercise?
A. Height measurement
B. Chest measurement for males
C. Blood group test
D. Physical fitness drill
Answer: C. Blood group test
Explanation: While a medical check is part of the process, a blood group test is not listed among the standard physical screening requirements. The main checks are height, chest measurement for males, and a physical fitness drill.
How to Pass the CDCFIB CBT Exam in 2026
Now that you have seen the types of questions, let us talk strategy. Knowing the subject areas is one thing. Knowing how to approach the exam itself is another.
Study Consistently for the Next Few Days
You do not have weeks to prepare. You have days. That means you need to be focused and deliberate. Set aside at least two to three hours every day between now and your exam date. Cover one subject per session and revisit the questions in this guide repeatedly until the answers come naturally.
Practice Past Questions Daily
CDCFIB CBT questions follow patterns. The same concepts come up repeatedly across different years. Go online and look for CDCFIB past questions and NSCDC, Immigration, and Correctional Service past questions. Practice them under timed conditions. Set a timer for 60 minutes and attempt 50 questions. This trains your brain to work at exam speed.
Focus on Your Weak Areas First
Most people want to study what they already know because it feels good. Do the opposite. Identify the subjects you struggle with the most and give them the most attention. If your mathematics is weak, spend more time there. If current affairs is your blind spot, start reading news summaries every morning.
Read Nigerian News Daily
For the current affairs section, there is no substitute for staying informed. Spend 15 to 20 minutes every morning reading Nigerian news. Focus on government news, security updates, and national development stories. Pay attention to the names of key government officials and their roles.
Manage Your Time During the Exam
When you sit down for the CBT, do not spend too long on any single question. If you are stuck, move on and come back later. Unanswered questions earn you zero marks. A question you are unsure about but guess on gives you a chance. Work through the questions you know first, then return to the harder ones.
Avoid Distractions on Exam Day
Get to your centre early. Arrive at least 45 minutes before your scheduled time. Bring your printed CBT slip and a valid ID. Do not bring phones or electronic devices into the exam hall unless specifically permitted. Eat a proper meal before you go. Hunger affects concentration more than most people realise.
How to Pass the Physical Screening Stage
The physical screening begins June 22 and this is where unprepared candidates fall apart. Here is how to make sure you are not one of them.
Start exercising now. Begin jogging every morning for at least 20 to 30 minutes. This builds your stamina for the fitness drill. Even one week of consistent exercise will make a noticeable difference in how your body performs on screening day.
Know your measurements. Measure your height before you go. If you are male, measure your chest. Know your numbers so there are no surprises. If you fall just below the minimum height, know that officials use standardised measuring equipment that is very precise.
Get your documents ready tonight. Do not wait until the morning of your screening to start looking for your certificates. Gather everything now. Make multiple photocopies. Arrange them in a folder. Bring originals and at least four copies of each document.
Sleep well the night before. Your physical performance is directly connected to how rested you are. A tired body performs poorly in fitness drills and makes mental errors during document checks. Get at least seven to eight hours of sleep before screening day.
Dress appropriately. Wear comfortable clothing and flat, supportive shoes. Avoid anything that restricts your movement. You may be asked to run, so dress like it.
My Honest and Final Advice to You
This is a real opportunity. Government jobs in Nigeria are not handed out every year. When this portal opens, millions of people compete for a limited number of positions. The ones who succeed are not always the smartest. They are the most prepared, the most organised, and the most disciplined.
You have the questions. You have the answers. You have the strategy. All that is left is for you to put in the work between now and exam day.
Study hard. Prepare your documents. Stay physically active. And whatever you do, apply before June 20.
Good luck. Nigeria is waiting for people like you.
Read More: CDCFIB: Recruitment Portal, Shortlist, Screening, News Today
Official Portal: https://recruitment.cdcfib.gov.ng
Official Contact: info@cdcfib.gov.ng
Portal Open: June 15 to June 20, 2026
Physical Examination Starts: June 22, 2026
The entire process is FREE. Pay no one.
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