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

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# : 02 out of 50 Report Bug Bookmark

Which IoT wireless communication technology is commonly used for short-range communication between devices, such as smartphones and IoT gadgets?

A. Zigbee

B. Bluetooth

C. LoRaWAN

D. NFC (Near Field Communication)

Question No# : 03 out of 50 Report Bug Bookmark

What is the purpose of a Digital Signature in IoT security?

A. Encrypt data during transmission

B. Verify the authenticity and integrity of data

C. Control access to IoT devices

D. Provide power to IoT devices

Question No# : 04 out of 50 Report Bug Bookmark

What does RFID stand for in the context of IoT?

A. Radio Frequency Identification

B. Real-time Frequency Integration Device

C. Remote Field Identification

D. Rapid Fire Data

Question No# : 05 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# : 06 out of 50 Report Bug Bookmark

What is the function of the "Smudge Tool" in Photoshop 7?

A. Blurring the edges of an image

B. Smoothing or blending colors in an image

C. Adding text to images

D. Applying artistic filters

Question No# : 07 out of 50 Report Bug Bookmark

What is the primary function of the "Gradient Tool" in Adobe Photoshop 7?

A. Adds a gradient background to an image

B. Adjusts the sharpness of an image

C. Creates custom brushes for painting

D. Changes the image resolution

Question No# : 08 out of 50 Report Bug Bookmark

In IoT, what does the term "Fog Computing" refer to?

A. Processing data on the cloud server

B. Processing data on the IoT device itself

C. Decentralized processing at the network edge

D. Transmitting data over a foggy environment

Question No# : 09 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# : 10 out of 50 Report Bug Bookmark

SAAS stands for
SAAS का पूर्ण रूप है।

A. Service as a software

B. Software as a service

C. Service as a service

D. None

Question No# : 11 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# : 12 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# : 13 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# : 14 out of 50 Report Bug Bookmark

What is the primary purpose of a Digital Signal Processor (DSP) in IoT devices?

A. Process analog signals

B. Provide internet connectivity

C. Perform digital signal processing tasks

D. Control power consumption

Question No# : 15 out of 50 Report Bug Bookmark

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

A. Ensuring the security of digital devices

B. The use of digital technologies for healthcare monitoring

C. A method for digitally storing health records

D. A digital representation of an individuals health status

Question No# : 16 out of 50 Report Bug Bookmark

A set of rules that limits access to information is known as
नियमों का एक समूह जो सूचना तक पहुंच को सीमित करता है, कहलाता है

A. Confidentiality

B. Integrity

C. None of these

D. Both of these

Question No# : 17 out of 50 Report Bug Bookmark

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

A. Measure acceleration

B. Detect rotational motion

C. Measure humidity

D. Monitor heart rate

Question No# : 18 out of 50 Report Bug Bookmark

What is the role of a magnetic sensor in an IoT-based door access control system?

A. Measure air pressure

B. Detect changes in temperature

C. Monitor magnetic fields for door status

D. Measure humidity

Question No# : 19 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# : 20 out of 50 Report Bug Bookmark

What is the role of a UV (Ultraviolet) sensor in an IoT device?

A. Measure air pressure

B. Detect changes in temperature

C. Monitor UV radiation levels

D. Measure humidity

Question No# : 21 out of 50 Report Bug Bookmark

What does the term "Anti-aliasing" refer to in Adobe Photoshop 7?

A. Adding transparency to an image

B. Smoothing the edges of an image to reduce jaggedness

C. Adjusting the image's color balance

D. Applying special effects to text

Question No# : 22 out of 50 Report Bug Bookmark

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

A. MQTT

B. CoAP

C. OPC UA (OPC Unified Architecture)

D. HTTP

Question No# : 23 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# : 24 out of 50 Report Bug Bookmark

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

A. Adjusts image brightness and contrast

B. Paints colors onto an image

C. Adds text to images

D. Selects areas based on color

Question No# : 25 out of 50 Report Bug Bookmark

Which IoT connectivity option is suitable for low-power, short-range communication between devices in close proximity and is commonly used in home automation?

A. Zigbee

B. Bluetooth

C. LoRaWAN

D. LTE (Long-Term Evolution)

Question No# : 26 out of 50 Report Bug Bookmark

Which IoT security measure involves creating a secure tunnel for transmitting data over an untrusted network?

A. Authentication

B. Authorization

C. VPN (Virtual Private Network)

D. Encryption

Question No# : 27 out of 50 Report Bug Bookmark

API enables services portability between?
एपीआई सेवाओ के बीच पोर्टेबिलिटी को सक्षम बनाता है-

A. Systems

B. Devices

C. Networks

D. Services

Question No# : 28 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# : 29 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# : 30 out of 50 Report Bug Bookmark

Which menu option is used for adjusting the color balance in Adobe Photoshop 7?

A. Filter

B. View

C. Image

D. Layer

Question No# : 31 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# : 32 out of 50 Report Bug Bookmark

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

A. Measure air pressure

B. Detect changes in temperature

C. Monitor air quality

D. Identify and measure colors

Question No# : 33 out of 50 Report Bug Bookmark

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

A. Adjusts image brightness and contrast

B. Paints colors onto an image

C. Adds text to images

D. Selects areas based on color

Question No# : 34 out of 50 Report Bug Bookmark

How can you undo the last action in Photoshop 7?

A. Ctrl + Z (Windows) or Command + Z (Mac)

B. Ctrl + X (Windows) or Command + X (Mac)

C. Ctrl + C (Windows) or Command + C (Mac)

D. Ctrl + V (Windows) or Command + V (Mac)

Question No# : 35 out of 50 Report Bug Bookmark

In Photoshop 7, what does the term "Layers" refer to?

A. Filters applied to images

B. Different levels of image resolution

C. Separate, stacked images that can be edited independently

D. The adjustment of image brightness and contrast

Question No# : 36 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# : 37 out of 50 Report Bug Bookmark

Which of the following process is used to keep track of user's activity
उपयोगकर्ता की गतिविधि पर नज़र रखने के लिए निम्न में से किस प्रक्रिया का उपयोग किया जाता है

A. Authentication

B. Authoring

C. Authorization

D. Accounting

Question No# : 38 out of 50 Report Bug Bookmark

Who will use their own for business models
कौन अपने स्वयं के IoT व्यवसाय मॉडल का उपयोग करेगा।

A. Service provider

B. SaaS

C. IaaS

D. None

Question No# : 39 out of 50 Report Bug Bookmark

Which IoT connectivity option is known for its high data transfer rates and is commonly used for multimedia applications?

A. Zigbee

B. Bluetooth

C. LoRaWAN

D. Wi-Fi

Question No# : 40 out of 50 Report Bug Bookmark

Which IoT connectivity option is designed for low-power, wide-area communication over long distances?

A. Zigbee

B. Bluetooth

C. LoRaWAN

D. Wi-Fi

Question No# : 41 out of 50 Report Bug Bookmark

What is the primary purpose of a moisture sensor in an IoT-based agriculture system?

A. Measure air pressure

B. Detect changes in temperature

C. Monitor soil moisture levels

D. Measure humidity

Question No# : 42 out of 50 Report Bug Bookmark

Which tool is used for selecting a color from an image in Photoshop 7?

A. Paint Bucket Tool

B. Gradient Tool

C. Eyedropper Tool

D. Clone Stamp Tool

Question No# : 43 out of 50 Report Bug Bookmark

The process of converting data into a format that can not be read by another user
डेटा को एक फार्मेट में बदलने की प्रक्रिया जिसे कोई दूसरा यूजर नहीं पढ़ सकता है।

A. Encryption

B. Decryption

C. Locking

D. Registering

Question No# : 44 out of 50 Report Bug Bookmark

Which of the following is a good password example.
निम्न में से कौन सा एक अच्छा पासवर्ड उदाहरण हैं

A. name of spouse

B. Name of hobby

C. Contains multiple random digit with special charactor

D. None of the above

Question No# : 45 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# : 46 out of 50 Report Bug Bookmark

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

A. Drawing straight lines

B. Measuring distances and angles in an image

C. Creating custom shapes

D. Adjusting image saturation

Question No# : 47 out of 50 Report Bug Bookmark

Which IoT application involves the use of connected devices for monitoring and managing the distribution of electricity?

A. Smart Cities

B. Smart Grids

C. Smart Agriculture

D. Smart Healthcare

Question No# : 48 out of 50 Report Bug Bookmark

In an IoT ecosystem, devices with unique identities having monitoring, and remote sensing capabilities are known as
IoT पारिस्थितिकी तंत्र में, विशिष्ट पहचान वाले उपकरणों में निगरानी और रिमोट होता है संवेदन क्षमताओं को कहा जाता है

A. Things

B. Motes

C. Monitoring devices

D. Edge monitors

Question No# : 49 out of 50 Report Bug Bookmark

What is the primary role of a light sensor in an IoT-based lighting control system?

A. Measure humidity

B. Monitor air quality

C. Detect ambient light levels

D. Measure distance

Question No# : 50 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