Investment Corporation MCQs
Showing 50 questions (Total: 255)
A seller made 10% profit after selling a product at 20% commission on list price. What is the list price of that product?
Correct Answer:
A: 137.5 Tk
The sum of daily income of P, Q, R is Tk. 90. If Q earns taka 10 more than P and R earns double of what Q earns, then what is the average of daily income of P and Q?
Correct Answer:
C: 20 Tk.
Explanation:
The sum of daily income of P, Q, R is Tk. 90. If Q earns taka 10 more than P and R earns double of what Q earns, then what is the average of daily income of P and Q? Correct Answer 20 Tk. P+Q+R = 90 tkQ = 10+PR = 2Q = 2(10+P) = 20+2P P+Q+R = 90 P+10+P+20+2P = 90 P = 15So, Q = 10+P = 10+15 = 25Now, P+Q = 15+25 = 40Average of P and Q is = 40/2 = 20 (Ans)
Which of the following program is an example of Platform Independent Program?
Correct Answer:
C: Java
Explanation:
Which of the following program is an example of Platform Independent Program? Correct Answer Java Java প্ল্যাটফর্ম ইন্ডিপেন্ডেন্ট ল্যাঙ্গুয়েজ কারণ Java যে কোন Platform/Operating System এ চলতে পারে। Java চলার জন্য JDK (Java Development Kit), JVM (Java Virtual Machine) ইত্যাদি প্রোগ্রাম use করে থাকে। FORTRAN (Formula Translator), C + + , Visual Basic প্ল্যাটফর্ম ইন্ডিপেন্ডেন্ট নয়।
A boat sailing against a stream of river takes 6 hours to travel 24 kms, while sailing with the stream it takes 4 hours to travel the same distance. What is the speed of the stream?
Correct Answer:
B: 1 km/hr
Explanation:
A boat sailing against a stream of river takes 6 hours to travel 24 kms, while sailing with the stream it takes 4 hours to travel the same distance. What is the speed of the stream? Correct Answer 1 km/hr Boat's speed + Stream's speed = 24/4 = 6 km/hrBoat's speed - Stream's speed = 24/6 = 4 km/hrDoing Subtraction, 2 * Stream's speed = 2 km/hr Stream's speed = 1 km/hr (Ans)
How many layers are in a TCP/IP protocol suit?
Correct Answer:
D: 4
Explanation:
How many layers are in a TCP/IP protocol suit? Correct Answer 4 TCP/IP Model এ মোট 4 টি লেয়ার থাকে। যথাঃ Process/Application Layer. Host - to - Host/Transport Layer. Internet Layer. Network Access/Link Layer.
A network-connected computer has IP address 201.102.133.25 and subnet mask 255.255.0.0. Which of the following indicates the Host Id of this computer?
Correct Answer:
B: 133.25
Explanation:
A network-connected computer has IP address 201.102.133.25 and subnet mask 255.255.0.0. Which of the following indicates the Host Id of this computer? Correct Answer 133.25 চিত্র থেকে এটা বোঝা যাচ্ছে, প্রশ্নে উল্লিখিত এড্রেসটি (201.102.133.25) প্রাথমিকভাবে Class - C Range এর মধ্যে পড়ে। কিন্তু, Subnet Mask অনুযায়ী এটি একটি Class B অ্যাড্রেস। IP Address নির্দিষ্টকরণের জন্য অবশ্যই Subnet Mask অনুযায়ী Class Choice করতে হবে। Class B এর ক্ষেত্রে প্রথম দুইটি Octet নেটওয়ার্কের জন্য নির্দিষ্ট এবং পরবর্তী দুইটি Octet হোস্ট এর জন্য নির্দিষ্ট। তাই, শেষোক্ত দুইটি Octet এর Address কে Host Address বলা হবে। উত্তরঃ 133.25
DWDM is the technology for boosting transmission capacity of optical fiber cable. What is the elaboration of DWDM?
Correct Answer:
C: Dense Wavelength Division Multiplexing
Explanation:
DWDM is the technology for boosting transmission capacity of optical fiber cable. What is the elaboration of DWDM? Correct Answer Dense Wavelength Division Multiplexing Dense Wavelength Division Multiplexing (DWDM) is an optical multiplexing technology used to increase bandwidth over existing fiber networks. DWDM works by combining and transmitting multiple signals simultaneously at different wavelengths on the same fiber. DWDM is a technology for achieving extremely high data rates over fiber - optic cabling.
What is the next number in the series? 5,3,1,7,3,2,9,5, -----
Correct Answer:
B: 5
K iterations by Newton-Raphson method of finding square root of a number increases accuracy in number of digits :
Correct Answer:
B: 2k
The smallest element of an array's index is called its ---
Correct Answer:
A: Lower bound
The complexity of Binary search algorithm is ---
Correct Answer:
B: O(log n)
Which of the following TCP/IP addresses constitute the loopback address?
Correct Answer:
D: 127.0.0.1
Which one is modern light weight message exchange format?
Correct Answer:
C: JSON
Explanation:
Which one is modern light weight message exchange format? Correct Answer JSON The data model is different. Apart from the lack of markup, which you noticed yourself, JSON also doesn't have all the other XML features, such as: Processing instructions Comments Attributes Hence, not only the data itself is more lightweight, but also any library implementing the data model. This makes rendering, parsing, processing JSON with non - JavaScript languages a lot faster. For JavaScript, this is a no - brainer, as JSON is actual JavaScript code, and thus much more "lightweight" for a JavaScript parser to process
Which keyword must be used to inherit a class in Java?
Correct Answer:
A: extends
Which one of following is not a valid identifier?
Correct Answer:
C: my-sun
What is the value of 'd' after this line of code has been executed? double d=Math.round(2.5 + Math.random() );
Correct Answer:
C: 3
Which of the following will produce an answer that is closest in value to a double, d, while not being greater than d?
Correct Answer:
D: (int)Math.floor(d)
A class that is inherited in Java is called a --
Correct Answer:
B: super class
Explanation:
A class that is inherited in Java is called a -- Correct Answer super class Super Class: The class whose features are inherited is known as superclass(or a base class or a parent class). Sub Class: The class that inherits the other class is known as subclass(or a derived class, extended class, or child class).
Which of the following is the destructor for the class'Vehicle'
Correct Answer:
C: ~Vehicle()
The only language understood by a digital computer is called
Correct Answer:
C: Binary language
Explanation:
The only language understood by a digital computer is called Correct Answer Binary language A binary code represents text, computer processor instructions, or any other data using a two - symbol system. The two - symbol system used is often "0" and "1" from the binary number system. The binary code assigns a pattern of binary digits, also known as bits, to each character, instruction, etc. For example, a binary string of eight bits can represent any of 256 possible values and can, therefore, represent a wide variety of different items
Which one of these interfaces is implemented by Thread class?
Correct Answer:
C: Runnable
Explanation:
Which one of these interfaces is implemented by Thread class? Correct Answer Runnable Explanation: Thread class is used to make threads in java, Thread encapsulates a thread of execution. To create a new thread the program will either extend Thread or implement the Runnable interface. 3.
which one is less costly for insertion operation at a particular position?
Correct Answer:
C: link list
Which of the following name does not relate to stacks?
Correct Answer:
A: FIFO list
Register Circuit is not used in?
Correct Answer:
D: none of these
The data structure required to evaluate a postfix expression is --
Correct Answer:
B: stack
Which one is a universal logic gate?
Correct Answer:
A: NAND
Explanation:
Which one is a universal logic gate? Correct Answer NAND A universal gate is a gate which can implement any Boolean function without need to use any other gate type. The NAND and NOR gates are universal gates. In practice, this is advantageous since NAND and NOR gates are economical and easier to fabricate and are the basic gates used in all IC digital logic families.
In Java, which operator is used to create an object ---
Correct Answer:
D: None of the above
Which protocol can causes overload on a managed device?
Correct Answer:
D: SNMP
Which of the following is a group of one or more attributes that uniquely indenfies a row?
Correct Answer:
A: Key
What is the minimum length of character array argv in the above code?
Correct Answer:
A: 1
Explanation:
What is the minimum length of character array argv in the above code? Correct Answer 1 argv is an array of pointers to char (i.e. array of strings). The length of this array is stored in argc argument.
Which type of cable is used to connect the COM port of a host to the COM port of a router or switch?
Correct Answer:
D: none of these
Which of the declaration is corect?
Correct Answer:
A: int length;
Explanation:
Which of the declaration is corect? Correct Answer int length; int length; denotes that variable length isint(integer) data type. char int; here int is a keyword cannot be used a variable name. int long; here long is a keyword cannot be used a variable name
The SQL statement that queries or reads data from a table is --
Correct Answer:
A: SELECT
For every relationship, how many opssible sets of minimum cardinalities are there?
Correct Answer:
C: Four
Which of the following cannot be checked in a switch-case statement?
Correct Answer:
C: Float
The main threat of Cloud based provisioning is :
Correct Answer:
B: Security
Explanation:
The main threat of Cloud based provisioning is : Correct Answer Security Threat - Security Thread - virtualization
Which of the following correctly shows the hierarchy of arithmetic operations in C?
Correct Answer:
D: /*+-
Which control statement can be executed at least once?
Correct Answer:
C: do--while
Link list can be implemented by using?
Correct Answer:
B: Pointers
An algorithm that calls itself or indirectly is known as --
Correct Answer:
B: Recursion
Two main measures for the efficiency of an algorithm are --
Correct Answer:
C: Time and space
In Java, which one will be used for comparing whether the two String object str1 and str2 are same --
Correct Answer:
B: str1,equalslgnore Case(atr2)
Which data structure allows deleting data elements from front and inserting at rear?
Correct Answer:
B: Queues
Which of the following is a design pattern?
Correct Answer:
C: Factory
Which of the following data structure is linear type?
Correct Answer:
C: Queues
By how much is three-fifth of 350 greater than four-seventh of 210?
Correct Answer:
D: None of these
Explanation:
By how much is three-fifth of 350 greater than four-seventh of 210? Correct Answer None of these Hints: 3/5 of 350 - 4/7 of 210 = 210 - 120 = 90
Find the largest number of four digits exactly divisible by 12, 15, 18 and 27.
Correct Answer:
B: 9720
Explanation:
Find the largest number of four digits exactly divisible by 12, 15, 18 and 27. Correct Answer 9720 Hints: L.C.M. of 12, 15, 18, 27 = 540 largest 4 digit number = 9999 So, 9999/540, We get 279 as remainder so the largest 4 digit exactly diviisible by 12, 15, 18, 27 = 9999 - 279 = 9720.
50 is divided into two parts such that the sum of their reciprocals is 1/12. Find the two parts.
Correct Answer:
A: 30 and 20
Explanation:
50 is divided into two parts such that the sum of their reciprocals is 1/12. Find the two parts. Correct Answer 30 and 20 Hints: Look at the answer, only A has 30 and 20, 30 + 20 = 50, which is the answer. Alternatively, let the two parts be x, y ; so x + y = 50 1/x + 1/y = 1/12 (y + x)/xy = 1/12 50 /xy = 1/12 xy = 600 x( 50 - x) = 600 50x - x2 = 600 x2 - 50x + 600 = 0 (x - 30) (x - 20) = 0 x = 30, 20
If 35% of a number is 175, then what percent of 175 is that number?
Correct Answer:
D: None of these
Explanation:
If 35% of a number is 175, then what percent of 175 is that number? Correct Answer None of these Hints: Let the number be x 35% of x = 175 (35/100) × x = 175 x = 500 Let, y% of 175 = 500 ( y/100) ×175 = 500 y = 285.714286 So, 285%
The ratio between the present ages of P and Q is 5 : 7 respectively. If the difference between Q's present age and P's age after 6 years is 2, what is the total of P's and Q's present ages?
Correct Answer:
A: 48 years