📚 Exam by Category
▾
Objective Questions

Latest CDOT Technician Exam Question (Objective Questions), MCQ in English

Subjects : Electronics/Electronics Communication, General Aptitude Test

Question Bank CDOT Technician (Electronics/Electronics Communication) Exam - English
Back to Exam

Electronics/Electronics Communication

Question 1Single Answer
Which device is primarily used to connect multiple networks and route data packets between them?
  1. A
    Switch
  2. B
    Router
  3. C
    Hub
  4. D
    Modem
Question 2Single Answer
Which device is used to connect a local area network (LAN) to the internet?
  1. A
    Router
  2. B
    Switch
  3. C
    Modem
  4. D
    Bridge
Question 3Single Answer
Which of the following devices is used to forward data packets based on MAC addresses?
  1. A
    Router
  2. B
    Switch
  3. C
    Bridge
  4. D
    Hub
Question 4Single Answer
Which of the following is NOT a function of a router?
  1. A
    Assign IP addresses to devices
  2. B
    Forward data packets based on IP address
  3. C
    Forward data packets based on MAC address
  4. D
    Connect different networks
Question 5Single Answer
Which device is used to connect two different networks and operates at the data link layer?
  1. A
    Switch
  2. B
    Router
  3. C
    Bridge
  4. D
    Hub
Question 6Single Answer
Which of the following is the main purpose of a modem?
  1. A
    To connect devices within a network
  2. B
    To connect a local network to the internet
  3. C
    To filter malicious data
  4. D
    To forward data packets
Question 7Single Answer
Which device operates at the physical layer and forwards data in the form of electrical signals?
  1. A
    Router
  2. B
    Hub
  3. C
    Switch
  4. D
    Modem
Question 8Single Answer
Which of the following is used for connecting different network segments and can operate at both the data link and network layers?
  1. A
    Switch
  2. B
    Router
  3. C
    Bridge
  4. D
    Gateway
Question 9Single Answer
Which device divides a large network into smaller subnetworks (subnets)?
  1. A
    Switch
  2. B
    Router
  3. C
    Hub
  4. D
    Modem
Question 10Single Answer
What is the main function of a network switch?
  1. A
    To connect different networks
  2. B
    To forward data packets based on IP addresses
  3. C
    To forward data packets based on MAC addresses
  4. D
    To filter network traffic
Question 11Single Answer
What is the primary function of the CPU (Central Processing Unit)?
  1. A
    To store data permanently
  2. B
    To perform arithmetic and logical operations
  3. C
    To transfer data between different devices
  4. D
    To display output on the monitor
Question 12Single Answer
Which component on the motherboard is responsible for connecting the CPU to the memory and other components?
  1. A
    Northbridge
  2. B
    Southbridge
  3. C
    Power supply
  4. D
    Heat sink
Question 13Single Answer
What type of memory is used to store the BIOS (Basic Input/Output System) in a computer?
  1. A
    RAM
  2. B
    ROM
  3. C
    Flash memory
  4. D
    Cache memory
Question 14Single Answer
Which type of memory is temporary and loses its contents when the power is turned off?
  1. A
    ROM
  2. B
    RAM
  3. C
    Flash memory
  4. D
    EEPROM
Question 15Single Answer
What is the purpose of the motherboard’s chipset?
  1. A
    To store operating system files
  2. B
    To provide power to the CPU
  3. C
    To manage data flow between the CPU, RAM, and other peripherals
  4. D
    To perform calculations
Question 16Single Answer
Which type of memory is faster and located closer to the CPU?
  1. A
    RAM
  2. B
    Cache memory
  3. C
    Hard drive
  4. D
    ROM
Question 17Single Answer
Which component is responsible for cooling the CPU?
  1. A
    Heat sink
  2. B
    RAM
  3. C
    Fan
  4. D
    Power supply
Question 18Single Answer
What is the role of the power supply unit (PSU) in a computer?
  1. A
    To store data
  2. B
    To convert electrical power from the outlet to usable power for the computer
  3. C
    To manage the CPU’s data
  4. D
    To regulate the temperature of the CPU
Question 19Single Answer
Which of the following types of memory is non-volatile and can be electrically erased and reprogrammed?
  1. A
    ROM
  2. B
    RAM
  3. C
    Flash memory
  4. D
    Cache memory
Question 20Single Answer
Which part of the CPU is responsible for fetching instructions from memory?
  1. A
    Control Unit
  2. B
    Arithmetic Logic Unit (ALU)
  3. C
    Register
  4. D
    Cache
Question 21Single Answer
Which device is used to amplify or regenerate signals in a network to extend the distance over which data can travel?
  1. A
    Switch
  2. B
    Router
  3. C
    Repeater
  4. D
    Modem
Question 22Single Answer
Which of the following is used to establish a wireless local area network (WLAN)?
  1. A
    Router
  2. B
    Wireless Access Point (WAP)
  3. C
    Hub
  4. D
    Bridge
Question 23Single Answer
What type of network topology is represented by a central hub that connects all devices in a star configuration?
  1. A
    Ring
  2. B
    Star
  3. C
    Bus
  4. D
    Mesh
Question 24Single Answer
In which network device is the packet switched on the basis of IP address?
  1. A
    Router
  2. B
    Switch
  3. C
    Hub
  4. D
    Modem
Question 25Single Answer
Which network topology connects all devices in a single line, passing data from one device to the next?
  1. A
    Star
  2. B
    Bus
  3. C
    Mesh
  4. D
    Ring
Question 26Single Answer
Which memory module is responsible for the temporary storage of instructions and data during the operation of the CPU?
  1. A
    ROM
  2. B
    Cache memory
  3. C
    RAM
  4. D
    Flash memory
Question 27Single Answer
What type of memory is typically used to store permanent or semi-permanent data that is not erased when the power is turned off?
  1. A
    RAM
  2. B
    ROM
  3. C
    Cache memory
  4. D
    Register
Question 28Single Answer
Which of the following components is usually located in the CPU and is used for performing arithmetic operations?
  1. A
    Control Unit
  2. B
    Arithmetic Logic Unit (ALU)
  3. C
    Cache
  4. D
    Register
Question 29Single Answer
Which part of the motherboard connects all the components and allows them to communicate with each other?
  1. A
    Bus
  2. B
    RAM
  3. C
    Power supply
  4. D
    Northbridge chipset
Question 30Single Answer
Which of the following components is used to expand the functionality of a motherboard, such as providing additional USB ports or enhanced graphics?
  1. A
    Expansion slot
  2. B
    RAM
  3. C
    CPU
  4. D
    Cache memory
Question 31Single Answer
What is the primary function of a capacitor in an electronic circuit?
  1. A
    To store energy
  2. B
    To provide a path for current
  3. C
    To amplify signals
  4. D
    To resist the flow of current
Question 32Single Answer
Which component in an electronic circuit is used to store and release electrical energy?
  1. A
    Resistor
  2. B
    Inductor
  3. C
    Capacitor
  4. D
    Transistor
Question 33Single Answer
Which of the following is a semiconductor material used in diodes and transistors?
  1. A
    Aluminum
  2. B
    Silicon
  3. C
    Copper
  4. D
    Iron
Question 34Single Answer
Which of the following is the most common method of transmitting data over long distances in communication systems?
  1. A
    Radio waves
  2. B
    Fiber optics
  3. C
    Infrared waves
  4. D
    Microwaves
Question 35Single Answer
In an analog communication system, what does the frequency modulation (FM) represent?
  1. A
    Varying the amplitude of the carrier wave
  2. B
    Varying the frequency of the carrier wave
  3. C
    Varying the phase of the carrier wave
  4. D
    Varying the pulse rate of the signal
Question 36Single Answer
What is the function of a diode in a circuit?
  1. A
    To allow current to flow in both directions
  2. B
    To regulate voltage
  3. C
    To allow current to flow only in one direction
  4. D
    To store electrical energy
Question 37Single Answer
Which of the following is used to filter high-frequency noise in power supply circuits?
  1. A
    Capacitor
  2. B
    Inductor
  3. C
    Resistor
  4. D
    Diode
Question 38Single Answer
In a communication system, what is the primary function of a modulation technique?
  1. A
    To convert digital signals into analog signals
  2. B
    To increase the bandwidth of the signal
  3. C
    To carry the signal over long distances
  4. D
    To adjust the signal strength
Question 39Single Answer
Which device is used to change the voltage level in AC circuits?
  1. A
    Transformer
  2. B
    Diode
  3. C
    Capacitor
  4. D
    Inductor
Question 40Single Answer
What is the primary function of a transistor in a circuit?
  1. A
    To store charge
  2. B
    To amplify signals
  3. C
    To regulate voltage
  4. D
    To convert AC to DC
Question 41Single Answer
Which network device operates at Layer 3 (Network Layer) of the OSI model?
  1. A
    Hub
  2. B
    Switch
  3. C
    Router
  4. D
    Repeater
Question 42Single Answer
What is the primary purpose of a modem in a communication system?
  1. A
    To amplify signals
  2. B
    To convert analog signals to digital signals and vice versa
  3. C
    To switch data between networks
  4. D
    To store data
Question 43Single Answer
Which of the following devices is used to connect multiple network devices within a local area network (LAN)?
  1. A
    Hub
  2. B
    Router
  3. C
    Switch
  4. D
    Repeater
Question 44Single Answer
In a TCP/IP model, which layer is responsible for end-to-end communication and error handling?
  1. A
    Network Layer
  2. B
    Data Link Layer
  3. C
    Transport Layer
  4. D
    Application Layer
Question 45Single Answer
Which of the following is a common type of cable used for networking in Ethernet connections?
  1. A
    Coaxial Cable
  2. B
    Fiber Optic Cable
  3. C
    Twisted Pair Cable
  4. D
    HDMI Cable
Question 46Single Answer
What does the acronym "BIOS" stand for in relation to the motherboard?
  1. A
    Binary Input/Output System
  2. B
    Basic Integrated Operating System
  3. C
    Basic Input/Output System
  4. D
    Binary Input System
Question 47Single Answer
Which of the following memory types is non-volatile, meaning it retains data even when the power is turned off?
  1. A
    RAM
  2. B
    Cache memory
  3. C
    ROM
  4. D
    DRAM
Question 48Single Answer
What is the primary function of the Control Unit (CU) within a CPU?
  1. A
    Perform arithmetic and logical operations
  2. B
    Control the flow of data in the CPU
  3. C
    Manage memory access
  4. D
    Store data temporarily
Question 49Single Answer
Which of the following is responsible for coordinating the activities of all parts of the CPU?
  1. A
    Control Unit (CU)
  2. B
    Arithmetic Logic Unit (ALU)
  3. C
    Cache memory
  4. D
    Main memory
Question 50Single Answer
What is the purpose of a heat sink in a computer system?
  1. A
    To cool the power supply
  2. B
    To cool the CPU
  3. C
    To store data
  4. D
    To provide backup power
Important Questions Package

CDOT Technician Exam Online Question Bank Package

Buy CDOT Technician Important Questions, MCQ, question answer in Hindi & English. It will help you to score high marks in CDOT Technician question bank 2026 in Online, PDF & Print study material.

+ Free Monthly Current Affairs, GK & more PDF Download
Sr.Package NameAmount
1.CDOT Technician (Mechanical) Exam - Hindi
Description : 1000 Question with Answer
₹101 [₹500]
2.CDOT Technician (Mechanical) Exam - Hindi
Description : 2000 Question with Answer
₹151 [₹500]
3.CDOT Technician (Mechanical) Exam - English
Description : 1000 Question with Answer
₹101 [₹500]
4.CDOT Technician (Mechanical) Exam - English
Description : 2000 Question with Answer
₹151 [₹500]
5.CDOT Technician (Electronics/Electronics Communication) Exam - Hindi
Description : 1000 Question with Answer
₹101 [₹500]
6.CDOT Technician (Electronics/Electronics Communication) Exam - Hindi
Description : 2000 Question with Answer
₹151 [₹500]
7.CDOT Technician (Electronics/Electronics Communication) Exam - English
Description : 1000 Question with Answer
₹101 [₹500]
8.CDOT Technician (Electronics/Electronics Communication) Exam - English
Description : 2000 Question with Answer
₹151 [₹500]
9.CDOT Technician (Information System/Information Technology) Exam - Hindi
Description : 1000 Question with Answer
₹101 [₹500]
10.CDOT Technician (Information System/Information Technology) Exam - Hindi
Description : 2000 Question with Answer
₹151 [₹500]
11.CDOT Technician (Information System/Information Technology) Exam - English
Description : 1000 Question with Answer
₹101 [₹500]
12.CDOT Technician (Information System/Information Technology) Exam - English
Description : 2000 Question with Answer
₹151 [₹500]
13.CDOT Technician (Mechanical) Exam - Hindi
Description : 1000 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
14.CDOT Technician (Electronics/Electronics Communication) Exam - Hindi
Description : 1000 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
15.CDOT Technician (Information System/Information Technology) Exam - Hindi
Description : 1000 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
16.CDOT Technician (Mechanical) Exam - English
Description : 1000 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
17.CDOT Technician (Electronics/Electronics Communication) Exam - English
Description : 1000 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
18.CDOT Technician (Information System/Information Technology) Exam - English
Description : 1000 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
19.CDOT Technician (Mechanical) Exam Question Bank Book - Hindi
Description : 1000 Question with Answer (Printed Material)
₹450 [₹800]
20.CDOT Technician (Electronics/Electronics Communication) Exam Question Bank Book - Hindi
Description : 1000 Question with Answer (Printed Material)
₹450 [₹800]
21.CDOT Technician (Information System/Information Technology) Exam Question Bank Book - Hindi
Description : 1000 Question with Answer (Printed Material)
₹450 [₹800]
22.CDOT Technician (Mechanical) Exam Question Bank Book - English
Description : 1000 Question with Answer (Printed Material)
₹390 [₹600]
23.CDOT Technician (Information System/Information Technology) Exam Question Bank Book - English
Description : 1000 Question with Answer (Printed Material)
₹390 [₹600]
24.CDOT Technician (Electronics/Electronics Communication) Exam Question Bank Book - English
Description : 1000 Question with Answer (Printed Material)
₹390 [₹600]
Back to Exam
Question for C-DOT Technician 2026 - Quiz / Questions / MCQ - Toppersexam