Sonali & Janata Bank | Officer (IT)| 04.01.2019 এর প্রশ্ন পড়ুন।

প্রশ্নঃ which of the following TCP/IP addresses constitute the loopback address?

বর্ণনাঃ TCP/IP networks specify a loopback that allows client software to communicate with server software on the same computer. users can specify an IP address, usually 127.0. 0.1, which will point back to the computer's TCP/IP network configuration. The range of addresses for loopback functionality is the range of 127.0.

প্রশ্নঃ which of the declaration is correct ?

বর্ণনাঃ int length = String.valueOf(number).length();

প্রশ্নঃ who was awarded the Golden Glove award for the best goalkeeper at the World Cup 2014?

বর্ণনাঃ Thibaut Courtois has won the Golden Glove award for being the best goalkeeper at the 2018 World Cup

প্রশ্নঃ Which is the biggest literary award of Britain?

বর্ণনাঃ David Cohen Award is the biggest literary award of Britain. The David Cohen Prize has established itself as the greatest honour a British or Irish writer can receive within these islands.

প্রশ্নঃ The secientist who first discovered that the earth revolves round the sun was

বর্ণনাঃ Nicolaus Copernicus was a Polish astronomer who put forth the theory that the Sun is at rest near the center of the Universe, and that the Earth, spinning on its axis once daily, revolves annually around the Sun. This is called the heliocentric, or Sun-centered, system.

প্রশ্নঃ The branch of science that studies cells is called _

বর্ণনাঃ Entomology is the study of insects and their relationship to humans, the environment, and other organisms. Entomologists make great contributions to such diverse fields as agriculture, chemistry, biology, human/animal health, molecular science, criminology, and forensics.

প্রশ্নঃ which country won the first football world cup?

বর্ণনাঃ Argentina, Uruguay, the United States and Yugoslavia each won their respective groups to qualify for the semi-finals. In the final, hosts and pre-tournament favourites Uruguay defeated Argentina 4–2 in front of a crowd of 68,346 people, and became the first nation to win the World Cup.

প্রশ্নঃ The official working languages recognized by the UNO are __

বর্ণনাঃ The current official and working languages of the United Nations are: Arabic. Chinese. English. French. Russian. Spanish.

প্রশ্নঃ which from the following can cause a tsunami?

বর্ণনাঃ Tsunamis are caused by sudden movements of the earth that happens under the sea. Often the most destructive Tsunamis are caused by earthquakes but causes can also include volcanic eruptions, landslides or even a comet hitting the sea. Landslides cause tsunamis when the debris falls into the water.

প্রশ্নঃ The standard sea level in millibars is

বর্ণনাঃ Standard sea-level pressure, by definition, equals 760 mm (29.92 inches) of mercury, 14.70 pounds per square inch, 1,013.25 × 103 dynes per square centimetre, 1,013.25 millibars, one standard atmosphere, or 101.325 kilopascals.

প্রশ্নঃ which of the following metals is known to pollute the air of big cities with a large number of vehicles?

বর্ণনাঃ Lead pollutes the air of a big city. Lead (Pb) is a metal found naturally in the environment as well as in manufactured products. The major sources of lead emissions have historically been from fuels in on-road motor vehicles (such as cars and trucks) and industrial sources.

প্রশ্নঃ The fraction of solar energy reflected from Earth into space is known as

বর্ণনাঃ Albedo is the fraction of solar energy (shortwave radiation) reflected from the Earth back into space. It is a measure of the reflectivity of the earth's surface. Ice, especially with snow on top of it, has a high albedo: most sunlight hitting the surface bounces back towards space. Insolation is the incident solar radiation onto some object. Specifically, it is a measure of the solar energy that is incident on a specified area over a set period of time. Generally, insolation is expressed in two ways.

প্রশ্নঃ which of the following process scheduling algorithm may lead to starvation ?

বর্ণনাঃ Shortest job next may lead to process starvation for processes which will require a long time to complete if short processes are continually added.

প্রশ্নঃ The maximum number of processes that can be in Ready state for a computer system with n CPUs is

বর্ণনাঃ The maximum number of processes that can be in Ready state for a computer system with n CPUs is Independent of n.

প্রশ্নঃ which of these is not a core data type?

বর্ণনাঃ Class is a user-defined data type.

প্রশ্নঃ Which of the following function convert a string to a float in python ?

বর্ণনাঃ float(x) − Converts x to a floating-point number.

প্রশ্নঃ what is the output of the following code? Print 9//2

বর্ণনাঃ The ‘//’ operator in Python returns the integer part of the floating number.

প্রশ্নঃ Find the out put of the following Java code line: System.out.printIn(math.floor(-7.4))

বর্ণনাঃ Floor is a function in java which returns the lower limit. Here -8 is lower limit to -7.4 and the higher limit would be -7. If you represent these numbers on the number line you would have -7 approaching towards zero and -8 away from 7.4 and far from zero so the lower limit would be -8. Hence the answer is -8.

প্রশ্নঃ which function overloads the>> operator?

বর্ণনাঃ Operator Overloading means giving extended meaning beyond their predefined operational meaning. For example operator + is used to add two integers as well as join two strings and merge two lists. It is achievable because '+' operator is overloaded by int class and str class.

প্রশ্নঃ which of the following is not an operator in java?

বর্ণনাঃ Java operators are one of the most important fundamental concepts. Operators help programmers to perform a specific operation (Arithmetic, Unary, Assignment, Relational, Logical, Ternary, Bitwise, and Shift operation).

প্রশ্নঃ which of the following operator functions cannot be global , ie. must be a number function.

বর্ণনাঃ New and delete can be global.

প্রশ্নঃ what is the time complexity of Huffman Coding?

বর্ণনাঃ The time complexity of the Huffman algorithm is O(nlogn). Using a heap to store the weight of each tree, each iteration requires O(logn) time to determine the cheapest weight and insert the new weight. There are O(n) iterations, one for each item.

প্রশ্নঃ Which sever can you use to dynamically assign IP addresses to the PC s in a LAN?

বর্ণনাঃ DHCP is an abbreviation for Dynamic Host Configuration Protocol. It is an application layer protocol used by hosts for obtaining network setup information. The DHCP is controlled by DHCP server that dynamically distributes network configuration parameters such as IP addresses, subnet mask and gateway address.

প্রশ্নঃ The operator that cannot be overloaded is

বর্ণনাঃ There are 4 operators that cannot be overloaded in C++. They are :: (scope resolution), . (member selection), . * (member selection through pointer to function) and ?: (ternary operator).

প্রশ্নঃ which of the following is the destructor for the class Vehicle?

বর্ণনাঃ The destructor for the class Vehicle is -Vehicle () .