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Worksheet Solutions: Mobile Technologies | Computer Application: Class 10 PDF Download

Q1: Multiple Choice Questions (MCQs)

1. Which of the following is the most widely used cell phone technology in the world?

a) CDMA

b) 3G

c) GSM

d) WLL

Answer: c) GSM

Explanation: GSM, or Global System for Mobile communications, is the world's most widely used cell phone technology, accounting for 80% of mobile phone users.


2. What does CDMA stand for?

a) Code Division Multiple Access

b) Circuit Division Multiple Access

c) Code Dual Mobile Access

d) Circuit Dual Mobile Access

Answer: a) Code Division Multiple Access

Explanation: CDMA stands for Code Division Multiple Access, a technology used for high-speed internet access and mobile communication.


3. Which generation of wireless technology introduced high-speed transmission and advanced multimedia access?

a) 1G

b) 2G

c) 3G

d) 4G

Answer: c) 3G

Explanation: 3G, or third-generation wireless technology, introduced high-speed transmission, advanced multimedia access, and global roaming.


4. What does WLL stand for?

a) Wireless Line Link

b) Wired Local Loop

c) Wireless Local Loop

d) Wireless Link Layer

Answer: c) Wireless Local Loop

Explanation: WLL stands for Wireless Local Loop, which uses radio waves to connect subscribers to the nearest telephone exchange.


5. What technology is Wi-Fi most similar to in a wired network?

a) DSL

b) Ethernet

c) Fiber Optics

d) Satellite

Answer: b) Ethernet

Explanation: Wi-Fi is like a wireless version of Ethernet, used to connect devices in a Local Area Network (LAN).


Q2: Fill in the Blanks

1. The GSM standard was developed by the __________ to describe protocols for second-generation digital cellular networks.

Answer: European Telecommunications Standards Institute (ETSI)

2.In traditional telephone networks, the phone was connected to the nearest exchange through a pair of __________ wires.

Answer: copper

3. __________ is a method of transmitting graphics, short video, and audio files over mobile phone networks.

Answer: MMS

4. The first-generation (1G) cellular networks were __________-switched and used for voice telephony.

Answer: analog

5. __________ is a very common wireless technology developed in the 1990s for connecting machines in a Local Area Network (LAN).

Answer: Wi-Fi


Q3: Match the Columns

Worksheet Solutions: Mobile Technologies | Computer Application: Class 10

Ans: 

1. GSM    a. Third-generation wireless technology

2. CDMA    b. Wireless Local Loop

3. 3G    c. Global System for Mobile communications

4. WLL    d. Code Division Multiple Access

5. 4G    e. Fourth-generation wireless technology

Answers:

1 - c

2 - d

3 - a

4 - b

5 - e

Q4: 

True or False

1. GSM was developed to replace second-generation analog cellular networks.

Answer: False

2. WLL is more expensive and slower to implement than copper wire connectivity.

Answer: False

3. 4G networks are currently the most widespread high-speed wireless service.

Answer: False

4. SMS allows the exchange of short text messages between fixed-line or mobile phone devices.

Answer: True

5. CDMA technology uses a narrow frequency range for data and voice packet transmission.

Answer: False

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