MCQ : SECURITY AND FUTURE OF IOT ECOSYSTEM For NIELIT O Level Exam

SECURITY AND FUTURE OF IOT ECOSYSTEM For NIELIT O Level Exam

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Question No# : 01 out of 50 Report Bug Bookmark

The different type of communication models available in an IoT ecosystem typically fall in following category/categories
IoT पारिस्थितिकी तंत्र में आमतौर पर विभिन्न प्रकार के संचार मॉडल उपलब्ध होते हैं निम्नलिखित श्रेणी/श्रेणियों में आते हैं

A. Request-response model

B. Push-pull model

C. Publish-subscribe model

D. All of these

Question No# : 02 out of 50 Report Bug Bookmark

Which IoT connectivity option is designed for low-power, short-range communication between devices within a personal area network (PAN)?

A. Zigbee

B. Bluetooth

C. LoRaWAN

D. Sigfox

Question No# : 03 out of 50 Report Bug Bookmark

In IoT security, what does the term "Two-Factor Authentication" involve?

A. Using two different encryption algorithms

B. Verifying identity using two independent methods

C. The use of two separate communication protocols

D. Encrypting data at two different network layers

Question No# : 04 out of 50 Report Bug Bookmark

What is the purpose of the "Histogram" in Adobe Photoshop 7?

A. Adjusting the image's saturation

B. Viewing a graphical representation of the tonal distribution in an image

C. Applying artistic filters to an image

D. Creating custom shapes

Question No# : 05 out of 50 Report Bug Bookmark

What does the "Eraser Tool" do in Adobe Photoshop 7?

A. Adds color to an image

B. Removes unwanted portions of an image

C. Adjusts image saturation

D. Applies special effects to an image

Question No# : 06 out of 50 Report Bug Bookmark

What is the purpose of the "Magic Wand" tool in Adobe Photoshop 7?

A. Drawing freehand shapes

B. Making precise selections based on color

C. Adding text to images

D. Applying gradient fills

Question No# : 07 out of 50 Report Bug Bookmark

Which of the following IoT protocols is commonly used for device management and configuration?

A. MQTT

B. CoAP

C. HTTP

D. TCP

Question No# : 08 out of 50 Report Bug Bookmark

Which of the following is not a correct way to secure communication layer?
निम्नलिखित में से कौन सा संचार लेयर को सुरक्षित करने का सही तरीका नहीं है?

A. Cloud initiated communication

B. TLS / SSL

C. IPS (Instrusion Prevention System)

D. Firewalll

Question No# : 09 out of 50 Report Bug Bookmark

Which menu option is used to resize an image in Photoshop 7?

A. Edit

B. Image

C. View

D. Layer

Question No# : 10 out of 50 Report Bug Bookmark

The Atmega 168 is an _____ bit chip
Atmega 168 एक______ बिट चिप है|

A. 32

B. 64

C. 8

D. 16

Question No# : 11 out of 50 Report Bug Bookmark

What does the term "IoT Gateway" refer to in an IoT architecture?

A. A device that connects IoT devices to the internet

B. A central server that processes all IoT data

C. A wireless protocol for IoT communication

D. A security measure for IoT devices

Question No# : 12 out of 50 Report Bug Bookmark

In Photoshop 7, what is the function of the "Burn Tool"?

A. Darkens areas of an image

B. Lightens areas of an image

C. Blurs the edges of an image

D. Converts color images to grayscale

Question No# : 13 out of 50 Report Bug Bookmark

Which IoT protocol is commonly used for real-time communication and control in home automation applications?

A. MQTT

B. CoAP

C. Z-Wave

D. HTTP

Question No# : 14 out of 50 Report Bug Bookmark

Which file format supports transparent backgrounds in Photoshop 7?

A. JPEG

B. GIF

C. PNG

D. TIFF

Question No# : 15 out of 50 Report Bug Bookmark

What is the purpose of the MQTT broker in an IoT system?

A. Store and manage IoT devices

B. Control the flow of messages between devices

C. Provide power to IoT devices

D. Encrypt IoT data

Question No# : 16 out of 50 Report Bug Bookmark

Which one is the most discussed challenge in IOT
आईओटी में सबसे ज्यादा चर्चित चुनौती कौन सी है

A. Standard

B. Security

C. Regulation

D. Internet

Question No# : 17 out of 50 Report Bug Bookmark

Which of the following is threat to IoT Device ?
निम्नलिखित में से कौन IoT डिवाइस के लिए खतरा है?

A. Virus

B. Natural Disaster

C. Spoofing

D. All of the above

Question No# : 18 out of 50 Report Bug Bookmark

Which tool is used for adjusting the overall color balance in an image?

A. Brush Tool

B. Color Picker

C. Eyedropper Tool

D. Color Balance Tool

Question No# : 19 out of 50 Report Bug Bookmark

Who created Bitcoin

A. Satoshi Nakamoto

B. Samsung

C. John Macfee

D. Chaina

Question No# : 20 out of 50 Report Bug Bookmark

What is the purpose of a gas sensor in an IoT device?

A. Measure air pressure

B. Detect changes in temperature

C. Monitor air quality for specific gases

D. Measure humidity

Question No# : 21 out of 50 Report Bug Bookmark

In IoT terminology, what does the acronym LPWAN stand for?

A. Low Power Wide Area Network

B. Long Processing Window for Authentication Network

C. Large Payload Wireless Access Network

D. Low-Profile Wireless Antenna Network

Question No# : 22 out of 50 Report Bug Bookmark

What is the purpose of the "Color Picker" in Photoshop 7?

A. Adding color to an image

B. Selecting a foreground or background color

C. Adjusting image brightness and contrast

D. Applying filters to an image

Question No# : 23 out of 50 Report Bug Bookmark

What is the purpose of the "Pen Tool" in Adobe Photoshop 7?

A. Drawing freehand shapes

B. Making precise selections based on color

C. Creating paths and shapes

D. Adjusting image brightness

Question No# : 24 out of 50 Report Bug Bookmark

Which of the following is a key component of the IoT ecosystem?

A. Router

B. Sensor

C. Printer

D. Keyboard

Question No# : 25 out of 50 Report Bug Bookmark

Which wireless communication protocol is commonly used in IoT devices for short-range communication?

A. Bluetooth

B. Wi-Fi

C. Zigbee

D. LTE

Question No# : 26 out of 50 Report Bug Bookmark

The poor security practices could include(s)

A. No system hardening

B. No mechanism for updating software

C. Default or hardcoded passwords

D. All of the above

Question No# : 27 out of 50 Report Bug Bookmark

What is the primary advantage of using IPv6 in IoT networks?

A. Lower power consumption

B. Increased security

C. Larger address space

D. Faster data transmission

Question No# : 28 out of 50 Report Bug Bookmark

_____ is the process of indentifying a person before giving an access?
.........एक्सेस देने से पहले किसी व्यक्ति की पहचान करने की प्रक्रिया है?

A. Auditing

B. Authorisation

C. Authentication

D. Accounting

Question No# : 29 out of 50 Report Bug Bookmark

Spring Boot Actuator exposes operational information about running application using endpoints.
स्प्रिंग बूट एक्ट्यूएटर_______समापन बिंदुओ का उपयोग करके रनिंग एप्लिकेशन के परिचालन जानकारी को उजागर करता है

A. TCP

B. HTTP

C. IP

D. FTP

Question No# : 30 out of 50 Report Bug Bookmark

What is the purpose of the "Color Picker" in Photoshop 7?

A. Adding color to an image

B. Selecting a foreground or background color

C. Adjusting image brightness and contrast

D. Applying filters to an image

Question No# : 31 out of 50 Report Bug Bookmark

Which IoT communication model involves devices subscribing to specific topics and receiving relevant messages?

A. Point-to-Point

B. Publish-Subscribe

C. Peer-to-Peer

D. Client-Server

Question No# : 32 out of 50 Report Bug Bookmark

Which of the following is used to upload the Arduino Sketches to the board
बोर्ड को अरुडिनो स्केच अपलोड करने के लिए निम्न में से किसका उपयोग किया जाता है

A. avrgcc

B. g++

C. cpython

D. avrdude

Question No# : 33 out of 50 Report Bug Bookmark

In IoT, what does the term "Digital Signature" refer to?

A. A virtual representation of a physical object

B. A unique identification code for IoT devices

C. A cryptographic technique to ensure data integrity

D. A communication protocol for IoT devices

Question No# : 34 out of 50 Report Bug Bookmark

Which of the following IoT applications involves the use of sensors and devices for monitoring and managing energy consumption in households?

A. Smart Cities

B. Smart Agriculture

C. Smart Energy Management

D. Smart Transportation

Question No# : 35 out of 50 Report Bug Bookmark

Which tool is used for blurring or sharpening specific areas of an image in Photoshop 7?

A. Blur Tool

B. Sharpen Tool

C. Clone Stamp Tool

D. Sponge Tool

Question No# : 36 out of 50 Report Bug Bookmark

Which IoT communication model involves a central server managing and controlling all communication between devices?

A. Peer-to-Peer (P2P)

B. Publish-Subscribe

C. Client-Server

D. Point-to-Multipoint

Question No# : 37 out of 50 Report Bug Bookmark

What does the term "Opacity" refer to in Adobe Photoshop 7?

A. The color intensity of an image

B. The transparency of a layer or brushstroke

C. The sharpness of an image

D. The color temperature of an image

Question No# : 38 out of 50 Report Bug Bookmark

How can you rotate an image in Adobe Photoshop 7?

A. By using the "Rotate" option in the "View" menu

B. By selecting the "Rotate" tool from the toolbar

C. By pressing Ctrl + R (Windows) or Command + R (Mac)

D. By adjusting the canvas size

Question No# : 39 out of 50 Report Bug Bookmark

What is the role of a gas sensor in an IoT-based air quality monitoring system?

A. Measure air pressure

B. Detect changes in temperature

C. Monitor levels of specific gases

D. Measure humidity

Question No# : 40 out of 50 Report Bug Bookmark

HC-05 is a Bluetooth module that can communicate in which mode ?
HC-05 एक ब्लूटूथ मॉड्यूल है जो किस मोड में संचार कर सकता है?

A. Simplex

B. Duplex

C. Full-Duplex

D. None of these

Question No# : 41 out of 50 Report Bug Bookmark

What is the purpose of a tilt sensor in an IoT-based earthquake detection system?

A. Measure air pressure

B. Detect changes in humidity

C. Monitor angular position or tilt

D. Measure light intensity

Question No# : 42 out of 50 Report Bug Bookmark

Which of the following challenge arises when we use many devices on the same network?
जब हम नेटवर्कउसी पर कई उपकरणों का उपयोग करते हैं तो निम्न में से कौन सी चुनौती उत्पन्न होती है?

A. Signaling

B. Security

C. Power Detection

D. Power Consunmption

Question No# : 43 out of 50 Report Bug Bookmark

What is Secure Shell (SSH)?
सिक्योर शेल (SSH) क्या है?

A. A router

B. A Firewall

C. A Network Protocol

D. Python Shell

Question No# : 44 out of 50 Report Bug Bookmark

______________is a program which enters computer system by secretly attaching itself with valid computer program and later steals information.
______________ एक प्रोग्राम है जो गुप्त रूप से अटैच होकर कंप्यूटर सिस्टम में प्रवेश करता है स्वयं वैध कंप्यूटर प्रोग्राम के साथ और बाद में जानकारी चुरा लेता है।

A. Phishing

B. Surfing

C. Trojan horse

D. Wamp

Question No# : 45 out of 50 Report Bug Bookmark

What is the role of a sensor in an IoT device?

A. Perform actions based on received data

B. Connect devices to the cloud

C. Measure and collect data from the environment

D. Encrypt communication between devices

Question No# : 46 out of 50 Report Bug Bookmark

Which IoT security measure involves restricting access to resources based on the identity of the user or device?

A. Encryption

B. Authentication

C. Authorization

D. Firewall

Question No# : 47 out of 50 Report Bug Bookmark

Which of the following IoT applications involves the use of sensors and devices for monitoring and managing traffic and transportation systems?

A. Smart Cities

B. Smart Agriculture

C. Smart Healthcare

D. Smart Transportation

Question No# : 48 out of 50 Report Bug Bookmark

Which IoT architecture involves processing data on centralized cloud servers?

A. Fog Computing

B. Edge Computing

C. Cloud Computing

D. Decentralized Computing

Question No# : 49 out of 50 Report Bug Bookmark

In IoT security, what does the term "Security Patch" refer to?

A. A physical layer of security

B. A software update to fix security vulnerabilities

C. Biometric authentication

D. A secure communication protocol

Question No# : 50 out of 50 Report Bug Bookmark

______ is the act of secretly listening to the private conversation or communications of others without their consent in order to gather information.
______ निजी बातचीत या संचार को गुप्त रूप से सुनने का कार्य है जानकारी इकट्ठा करने के लिए दूसरों की सहमति के बिना।

A. Phishing

B. Surfing

C. Trojan horse

D. Eavesdropping