1.
What is the full form of ICT ?
Correct Answer
C. Information and communication technology
Explanation
The correct answer is "Information and communication technology". ICT refers to the use of technology to store, retrieve, transmit, and manipulate information. It encompasses various technologies such as computers, telecommunications, and networks, which are used to facilitate communication and the exchange of information.
2.
নিচের কোনটি Octal number?
Correct Answer
D. 705341
Explanation
The given number "705341" is an octal number because it only consists of digits from 0 to 7. In octal representation, each digit represents a value from 0 to 7, and the place value increases by a power of 8. Therefore, the given number is an octal number.
3.
Decimal নম্বর এর বেজ কতো ?
Correct Answer
B. 10
Explanation
The question is asking for the base of a decimal number. In this case, the correct answer is 10 because decimal numbers are based on the decimal system, which uses a base of 10. This means that each digit in a decimal number represents a multiple of a power of 10.
4.
(FE)16 এর বাইনারি কতো ?
Correct Answer
B. 11111110
Explanation
The binary representation of (FE)16 is 11111110.
5.
বিশ্বগ্রাম তৈরির উপাদান কয়টি?
Correct Answer
B. ৫
Explanation
The correct answer is ৫.
6.
স্যাটেলাইট যে সংকর ধাতুর ফ্রেম দিয়ে তৈরি হয় তাকে কী বলা হয়?
Correct Answer
B. বাস
Explanation
The correct answer is "বাস" because the word "বাস" means "base" in English, and a satellite is made using a base or framework made of a specific metal.
7.
স্যাটেলাইট পৃথিবী থেকে কত দূরে স্হাপন করা হয়?
Correct Answer
A. ২৩০০০ মাইল
Explanation
Satellites are typically placed in a geostationary orbit, which is approximately 22,236 miles (35,786 kilometers) above the Earth's equator. This allows the satellite to remain stationary relative to the Earth's surface, making it ideal for communication purposes. Therefore, the correct answer is ২৩০০০ মাইল.
8.
কোনটি ভার্চুয়াল রেয়ালিটির উপাদান নয়?
Correct Answer
B. আকচুয়েটর
Explanation
Virtual reality typically involves the use of various components and technologies to create an immersive and interactive virtual environment. The elements involved in virtual reality include effects, applications, and geometry. However, an "actuator" is not considered a component or element of virtual reality. Actuators are devices that convert energy into motion, and while they may be used in virtual reality systems, they are not inherently a part of virtual reality itself.
9.
বায়মেট্রিক (Biometrics) কোন ভাষা থেকে এসেছে ?
Correct Answer
A. গ্রীক
Explanation
Biometrics is derived from the Greek language.
10.
অন্যের লিখা চুরি করে নিজের নামে চালানো কে কি বলে?
Correct Answer
C. প্লেজিয়ারিজম
Explanation
The correct answer is "প্লেজিয়ারিজম" (plagiarism). Plagiarism refers to the act of stealing someone else's work or ideas and presenting them as one's own. In this context, it means taking someone else's written content and using it under one's own name.
11.
এটিএম (ATM) কি?
Correct Answer
A. Automatted Teller Machine
Explanation
The correct answer is "Automatted Teller Machine". An ATM is a machine that allows bank customers to perform various transactions such as withdrawing cash, depositing money, checking account balances, and transferring funds. It is an automated device that provides convenience and accessibility to banking services without the need for human interaction.
12.
১ ন্যানোমিটার কোনটি?
Correct Answer
C. ১০-৯
Explanation
The correct answer is 10^-9. This is because the prefix "ন্যানো" (nano) represents 10^-9 in the International System of Units (SI). Therefore, 1 nanometer is equal to 10^-9 meters.
13.
বিশ্বগ্রামের মেরুদণ্ড কোনটি?
Correct Answer
B. Connectivity
Explanation
The correct answer is "Connectivity". The question asks about the "Meridian of World Village", and out of the given options, connectivity is the most relevant to this concept. Connectivity refers to the ability of devices and systems to connect and communicate with each other, which is essential for creating a global village where people and information can easily connect regardless of geographical location. Hardware, software, and data are all important components in achieving connectivity, but connectivity itself encompasses the broader concept of establishing and maintaining connections.
14.
দুর্ঘটনায় নিহত যাত্রী শনাক্তকরণের জন্য ব্যবহৃত প্রযুক্তি --
Correct Answer
D. DNA Analysis
Explanation
DNA analysis is used for the identification of deceased passengers in accidents. This technique involves analyzing the DNA samples obtained from the victims and comparing them with the DNA profiles of their family members or known individuals. DNA analysis is a reliable method for identifying individuals as each person's DNA is unique, except in the case of identical twins. This technique can provide conclusive evidence for the identification of the deceased passenger in accidents where other identification methods may not be feasible or conclusive.
15.
নিচের কোন সংখ্যাটি বড় ?
Correct Answer
D. (১০১০)২
Explanation
The given numbers are in different number systems. The numbers in brackets represent the base of each number system. In this case, (১০০০)২ represents the number 1000 in base 2 (binary), (১১)৮ represents the number 11 in base 8 (octal), (৭)১৬ represents the number 7 in base 16 (hexadecimal), and (১০১০)২ represents the number 1010 in base 2 (binary). Comparing these numbers, we can see that (১০১০)২ is the largest number.
16.
(৫৬৪৭)৮ বাইনারী কত ?
Correct Answer
B. ১০১১১০১০০১১১
Explanation
The given binary numbers are:
1011011001011010
1011011001011011
1011011001011011
1001011001011011
The correct answer is 1011011001011011.
17.
১০০১১১০০১০১০১১০০হেক্সা কোনটি হবে ?
Correct Answer
B. 9CAC
18.
1 Nibble =
Correct Answer
A. 1000
Explanation
The correct answer is 1000. A nibble is a unit of data measurement that represents 4 bits or half a byte. In binary, the number 1000 represents 8 in decimal, which is the equivalent of a nibble. Therefore, 1000 is the correct answer.
19.
(101110100011) Octal Value is?
Correct Answer
C. 5643
Explanation
The given binary number (101110100011) can be converted to an octal number by grouping the digits into sets of three from right to left. Starting from the rightmost digit, we have 011, which is equal to 3 in octal. Moving to the left, we have 100, which is equal to 4 in octal. Continuing this process, we have 010, which is equal to 2 in octal, and finally, we have 101, which is equal to 5 in octal. Therefore, the octal value of the given binary number is 5643.
20.
ইন্টারনেট ব্যবহার করে অন্নের কম্পিউটারে অনুপ্রবেশ কে কি বলে?
Correct Answer
C. Hacking
Explanation
Hacking refers to the unauthorized access or manipulation of someone else's computer or network system. It involves exploiting vulnerabilities in security systems to gain access to sensitive information or to disrupt the normal functioning of the system. This activity is illegal and unethical.