Cobmined Bank

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65 Questions 4 Sections
Exam Name Cobmined Bank
Exam Taker BIBM
Exam Year 2026
Exam Category Bank
Post Name Officer(IT)
Exam Date 31-July-2026
Exam Code CB, O(IT), 24

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Technical 35 Questions
QUESTION 1
In a sequential circuit, which element is used to store 1 bit of information?
Digital Logic Design Sequential Circuits
Explanation

A flip-flop is a basic sequential circuit element that can store one bit of information.

QUESTION 2
Which memory is the fastest?
Computer Architecture and Organization Computer Memory
Explanation

CPU registers are the fastest type of memory and are located inside the processor.

QUESTION 3
Which storage is used to store BIOS?
Computer Architecture and Organization BIOS and Firmware
Explanation

BIOS firmware is traditionally stored in non-volatile ROM or flash memory.

QUESTION 4
Which technology is commonly used for version control in software development?
Software Engineering Version Control Systems
Explanation

Git is a widely used distributed version control system for software development.

QUESTION 5
What is the time complexity of inserting an element at the beginning of a singly linked list?
Data Structure Linked List
Explanation

If the head pointer is available, insertion at the beginning requires only a constant number of operations, so the complexity is O(1).

QUESTION 6
In a Binary Search Tree (BST), which traversal produces the values in sorted order?
Data Structure Binary Search Tree Traversal
Explanation

Inorder traversal of a BST visits the nodes in ascending sorted order.

QUESTION 7
To sort student records from largest to smallest, which SQL clause is used?
Database Management System SQL Sorting (ORDER BY)
Explanation

ORDER BY DESC sorts query results in descending order.

QUESTION 8
Which printer is generally used at bank cash counters?
Computer Peripherals Impact Printers
Explanation

Thermal printers are commonly used for receipts and transaction slips at cash counters.

QUESTION 9
Which video compression standard is commonly used?
Multimedia Systems Video Compression Standards
Explanation

H.264 (AVC) is a widely used video compression standard. MP3 is for audio, while JPEG and PNG are image formats.

QUESTION 10
Which type of cable is commonly used for CCTV systems?
Data Communication CCTV Cabling
Explanation

Coaxial cable has traditionally been widely used for analog CCTV camera systems.

QUESTION 11
Toner is used in which type of printer?
Computer Peripherals Laser Printers
Explanation

Toner is the powdered printing material used in laser printers.

QUESTION 12
Which keyboard shortcut is commonly used to switch display modes when a computer is connected to a projector?
Computer Fundamentals Display Projection Shortcuts
Explanation

Windows + P opens the projection/display mode options in Windows.

QUESTION 13
Which activation function is commonly used in the hidden layers of a Deep Neural Network (DNN)?
Artificial Intelligence and Machine Learning Activation Functions
Explanation

ReLU (Rectified Linear Unit) is commonly used in hidden layers of deep neural networks.

QUESTION 14
Which device provides the fastest data access?
Computer Architecture and Organization Memory Hierarchy
Explanation

Among the listed storage devices, an SSD generally provides faster data access than an HDD, USB flash drive, or DVD.

QUESTION 15
Where is BIOS stored?
Computer Architecture and Organization BIOS and Firmware
Explanation

BIOS firmware is stored in non-volatile memory, traditionally ROM and commonly flash ROM or EEPROM.

QUESTION 16
How do you define a function in Python?
Programming in Python Python Functions
Explanation

Python uses the def keyword to define a function.

QUESTION 17
Which language is used to define the structure of a webpage?
Web Technology HTML Fundamentals
Explanation

HTML (HyperText Markup Language) defines the structure and content of web pages.

QUESTION 18
What is the full form of HTML?
Web Technology HTML Fundamentals
Explanation

HTML stands for HyperText Markup Language.

QUESTION 19
In Microsoft Excel, every formula starts with which symbol?
Computer Applications (Microsoft Excel) Excel Formulas
Explanation

Excel formulas begin with the equals (=) symbol.

QUESTION 20
What is the full form of UX?
Human-Computer Interaction (HCI) User Experience (UX)
Explanation

UX stands for User Experience.

QUESTION 21
The Intel 8086 microprocessor is a ______ bit microprocessor.
Microprocessor and Microcontroller Intel 8086 Architecture
Explanation

The Intel 8086 is a 16-bit microprocessor.

QUESTION 22
What is the primary function of a neural network?
Artificial Intelligence and Machine Learning Artificial Neural Networks
Explanation

Neural networks learn patterns from data and use those learned patterns for tasks such as prediction and classification.

QUESTION 23
What is the full form of HTTP?
Web Technology HTTP Protocol
Explanation

HTTP stands for HyperText Transfer Protocol.

QUESTION 24
Which switching technique is used by the Internet?
Computer Networks Switching Techniques
Explanation

The Internet primarily uses packet switching, where data is divided into packets and transmitted across the network.

QUESTION 25
What does CIA stand for in Cyber Security?
Cyber Security CIA Triad
Explanation

The CIA triad in cybersecurity stands for Confidentiality, Integrity, and Availability.

QUESTION 26
Which camera is commonly used in banks for surveillance?
Computer Networks and Security CCTV Surveillance Systems
Explanation

IP cameras are commonly used in modern bank surveillance systems because they transmit video over a network.

QUESTION 27
Object-Oriented Programming (OOP) is primarily based on which concept?
Object-Oriented Programming (OOP) OOP Fundamentals
Explanation

OOP organizes programs around objects and classes, along with concepts such as encapsulation, inheritance, and polymorphism.

QUESTION 28
Which device is commonly used for circuit protection?
Digital Logic Design Circuit Protection Devices
Explanation

A fuse protects an electrical circuit by melting and breaking the circuit when excessive current flows.

QUESTION 29
Which is the primary semiconductor material used in modern electronic devices?
Electronic Devices and Circuits Semiconductor Materials
Explanation

Silicon is the primary semiconductor material widely used in modern electronic devices.

QUESTION 30
Which type of printer is commonly used for printing carbon-copy receipts?
Computer Peripherals Impact Printers
Explanation

Dot matrix printers can use impact printing to produce carbon copies and are commonly associated with multipart forms and receipts.

QUESTION 31
Which protocol is commonly used for real-time streaming and is connectionless?
Computer Networks Protocols
Explanation

UDP is connectionless and has low overhead, making it suitable for many real-time streaming applications.

QUESTION 32
What is the primary function of NAT (Network Address Translation)?
Computer Networks Network Address Translation
Explanation

NAT translates private IP addresses into public IP addresses, allowing private-network devices to communicate through a public address.

QUESTION 33
Which email protocol downloads emails from the mail server and stores them locally?
Computer Networks Protocols
Explanation

POP3 downloads emails from the mail server to the local email client.

QUESTION 34
How can you send an email to multiple recipients without revealing their email addresses to each other?
Computer Security Email
Explanation

BCC (Blind Carbon Copy) hides recipients' email addresses from other recipients.

QUESTION 35
Which protocol is commonly used to receive emails?
Computer Networks Protocols
Explanation

POP3 is a standard protocol used to retrieve emails from a mail server.

Bangla 9 Questions
QUESTION 36
কমিটি' শব্দের সঠিক ইংরেজি বানান কোনটি?
Explanation

The correct English spelling is Committee.

QUESTION 37
মুমূর্ষু' শব্দের সঠিক বানান কোনটি?
Explanation

The correct Bangla spelling is মুমূর্ষু.

QUESTION 38
পরীক্ষা' শব্দের সন্ধি বিচ্ছেদ কোনটি?
Explanation

পরীক্ষা শব্দের সন্ধি বিচ্ছেদ হলো পরি + ঈক্ষা.

QUESTION 39
নীলপদ্ম' কোন সমাসের উদাহরণ?
Explanation

নীলপদ্ম কর্মধারয় সমাসের উদাহরণ।

QUESTION 40
অরণ্যে রোদন' বাগধারার অর্থ কী?
Explanation

অরণ্যে রোদন বলতে বৃথা আবেদন বা অনুরোধ বোঝায়।

QUESTION 41
যা দমন করা কষ্টকর'—এক কথায় প্রকাশ কী?
Explanation

যা দমন করা কষ্টকর তাকে দুর্দমনীয় বলা হয়।

QUESTION 42
অগ্নি'র সমার্থক শব্দ নয় কোনটি?
Explanation

অম্বর অগ্নির সমার্থক শব্দ নয়; অম্বর অর্থ আকাশ বা বস্ত্র।

QUESTION 43
কবর' কবিতার রচয়িতা কে?
Explanation

কবর' কবিতার রচয়িতা জসীমউদ্দীন।

QUESTION 44
রবীন্দ্রনাথ ঠাকুর কত সালে নোবেল পুরস্কার লাভ করেন?
Explanation

রবীন্দ্রনাথ ঠাকুর 1913 সালে সাহিত্যে নোবেল পুরস্কার লাভ করেন।

English 11 Questions
QUESTION 45
Choose the correct spelling.
Explanation

The correct spelling is Committee.

QUESTION 46
Choose the correct sentence.
Explanation

The adjective 'junior' is followed by the preposition 'to', so 'He is junior to me' is correct.

QUESTION 47
By the time you arrive, we _____ the work.
Explanation

The future perfect tense is used for an action that will be completed before a specified future time.

QUESTION 48
What do you call a person who writes a dictionary?
Explanation

A person who writes or compiles a dictionary is called a lexicographer.

QUESTION 49
During the Liberation War of Bangladesh, Dhaka was under which sector?
Explanation

According to the supplied question, Dhaka was under Sector 2.

QUESTION 50
Which institution is called the 'Clearing House' in Bangladesh?
Explanation

Bangladesh Bank performs central banking and clearing-related functions in Bangladesh.

QUESTION 51
Which was the first commercial private bank established in Bangladesh?
Explanation

AB Bank PLC was the first private commercial bank established in Bangladesh.

QUESTION 52
Where is the headquarters of SAARC located?
Explanation

The SAARC Secretariat is located in Kathmandu, Nepal.

QUESTION 53
What is the capital city of Australia?
Explanation

Canberra is the capital city of Australia.

QUESTION 54
Which island is known as Coral Island?
Explanation

Saint Martin's Island is known as Bangladesh's Coral Island.

QUESTION 55
Bread and butter ____ my favourite breakfast.
Explanation

Bread and butter' is treated as a single combined item in this sentence, so 'is' is used.

Math 10 Questions
QUESTION 56
What is the total sum of the interior angles of a hexagon?
Explanation

The sum of the interior angles of an n-sided polygon is (n−2)×180°. For a hexagon, (6−2)×180° = 720°.

QUESTION 57
A motor fills a tank in 20 minutes, while another fills the same tank in 30 minutes. If both motors operate together, how long will it take to fill the tank?
Explanation

Their combined rate is 1/20 + 1/30 = 1/12 tank per minute, so they fill the tank in 12 minutes.

QUESTION 58
What is 20% of 30% of 500?
Explanation

30% of 500 is 150, and 20% of 150 is 30.

QUESTION 59
A car travels at 20 km/h and crosses a bridge in 15 minutes. What is the length of the bridge?
Explanation

15 minutes is 0.25 hour. Distance = speed × time = 20 × 0.25 = 5 km.

QUESTION 60
If 2^(x+3) = 32, what is the value of x?
Explanation

Since 32 = 2^5, x + 3 = 5, so x = 2.

QUESTION 61
A coin is tossed twice. What is the probability of getting exactly one Head?
Explanation

The possible outcomes are HH, HT, TH, and TT. Exactly one Head occurs in HT and TH, so the probability is 2/4 = 1/2.

QUESTION 62
If the present age ratio of a father and his son is 4:1 and after 5 years it becomes 3:1, what is the son's present age?
Explanation

Let the present ages be 4x and x. After 5 years, (4x+5)/(x+5)=3, x=10(after calcluation)

QUESTION 63
One person can complete a job in 6 days and another in 10 days. How many days will they take together?
Explanation

Their combined work rate is 1/6 + 1/10 = 4/15 job per day. Therefore, time required = 15/4 = 3.75 days.

QUESTION 64
What is the LCM of 12, 15, and 20?
Explanation

The prime factors give LCM = 2² × 3 × 5 = 60.

QUESTION 65
If x + y = 8 and x − y = 4, find the value of xy.
Explanation

Adding the equations gives 2x=12, so x=6 and y=2. Therefore, xy=12.

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