Class 10 Science Chapters PDF Links
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Questions and Answers

Chapter PDF Links _____ & its compounds

Carbon

Chapter PDF Links How do organisms _____

reproduce

Title PDF Links First flight - _____

Prose

Chapter PDF Links ______ effects of electric current

<p>Magnetic</p> Signup and view all the answers

Title PDF Links Footprints without _____

<p>feet</p> Signup and view all the answers

What is the primary purpose of CDMA technology in wireless communication?

<p>To allow multiple users to share the same frequency channel simultaneously (B)</p> Signup and view all the answers

How does CDMA differ from traditional frequency division multiple access (FDMA) in wireless networks?

<p>CDMA uses the entire available spectrum for each user, while FDMA divides the spectrum into narrow channels (B)</p> Signup and view all the answers

What is the primary advantage of GPRS over traditional circuit-switched data services in mobile networks?

<p>GPRS uses a packet-oriented approach, allowing more efficient use of network resources (A)</p> Signup and view all the answers

What is the primary function of wireless local loop (WLL) technology in telecommunications?

<p>To deliver telephone and internet access services in remote or underserved areas (B)</p> Signup and view all the answers

Which of the following is a key characteristic of CDMA technology in wireless networks?

<p>It spreads each user's signal over the entire available bandwidth using a unique code (C)</p> Signup and view all the answers

How does GPRS differ from traditional circuit-switched data services in mobile networks?

<p>GPRS is charged based on the volume of data transferred, rather than connection time (D)</p> Signup and view all the answers

Which of the following is a wireless communication protocol used for mobile telephony?

<p>GSM (C)</p> Signup and view all the answers

What is the primary access method used by GSM?

<p>Time Division Multiple Access (TDMA) (A)</p> Signup and view all the answers

Which of the following is a service enabled by the GSM standard?

<p>General Packet Radio Service (GPRS) (D)</p> Signup and view all the answers

What is the primary purpose of the Public Switched Telephone Network (PSTN)?

<p>To facilitate circuit-switched voice communication (D)</p> Signup and view all the answers

Which of the following is a security protocol used in Wi-Fi networks?

<p>WPA2 (Wi-Fi Protected Access 2) (D)</p> Signup and view all the answers

What is the primary purpose of network security concepts?

<p>To protect networks and data from unauthorized access (C)</p> Signup and view all the answers

Which of the following best describes the term 'Voice over Internet Protocol' (VoIP)?

<p>A group of technologies for delivering voice communications and multimedia sessions over the Internet (C)</p> Signup and view all the answers

What is the primary advantage of using VoIP for making phone calls?

<p>Ability to make calls from anywhere with an Internet connection at a lower cost (A)</p> Signup and view all the answers

Which of the following statements is true about Wi-Fi (Wireless Fidelity)?

<p>It is a brand licensed by the Wi-Fi Alliance to describe wireless local area network (WLAN) technology (D)</p> Signup and view all the answers

What is the primary function of a wireless access point in a Wi-Fi network?

<p>To act as a central hub for connecting wireless devices to the Internet or a local area network (C)</p> Signup and view all the answers

Which of the following statements accurately describes the concept of network security in the context of wireless networks?

<p>Implementing proper security measures is crucial for wireless networks to prevent unauthorized access and data breaches (D)</p> Signup and view all the answers

What is the primary difference between the public switched telephone network (PSTN) and VoIP?

<p>PSTN is a circuit-switched network, while VoIP uses packet-switched Internet infrastructure (B)</p> Signup and view all the answers

Flashcards

GSM (Global System for Mobile Communications)

A type of wireless network access technology that offers features such as roaming and wide coverage.

VoIP (Voice over Internet Protocol)

The transmission of voice and multimedia communication over the internet.

CDMA (Code-Division Multiple Access)

A technology that allows multiple users to share the same frequency band simultaneously by spreading their signals over a wide frequency spectrum.

Wi-Fi (Wireless Fidelity)

A wireless standard used to connect to internet or network.

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GPRS (General Packet Radio Service)

A technology that allows for the transmission of data over the internet in small packets.

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TDMA (Time Division Multiple Access)

A method used by GSM to divide the available bandwidth and allocate time slots to different users on the same channel.

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WLL (Wireless Local Loop)

A wireless communication technology developed to provide telephone and internet access services in areas that lack traditional wired infrastructure.

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PSTN (Public Switched Telephone Network)

A network that uses a circuit-switched infrastructure to provide voice communication services.

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WPA2 (Wi-Fi Protected Access 2)

A security protocol that encrypts data transmitted over Wi-Fi networks, protecting against eavesdropping and unauthorized access.

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Wireless Access Point

A central hub device that allows wireless devices to connect to a network or the internet.

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Network Security

The process of protecting networks and data from unauthorized access, data breaches, and other cybersecurity threats.

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Spread Spectrum

A technique used to protect data by dividing a signal into multiple parts and spreading them across a wide range of frequencies, making it harder to intercept.

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FDMA (Frequency Division Multiple Access)

A type of frequency allocation technique in which the available bandwidth is divided into smaller channels, with each user assigned a specific channel.

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Packet-Switched Data

A method of data transmission that sends information in small packets, making it more efficient than traditional circuit-switched connections.

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