Q81. What is a major advantage of a WAN (Wide Area Network) over a LAN (Local Area Network)?
a) Higher bandwidth
b) Greater geographic coverage
c) Better security
d) Lower latency
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Correct Answer: b) Greater geographic coverage
Explanation: A WAN covers a larger geographic area compared to a LAN, allowing for connectivity between devices across cities, countries, or even continents.
Q82. Which technology is commonly used to provide high-speed internet access?
a) Dial-up
b) ISDN
c) Fiber optics
d) Bluetooth
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Correct Answer: c) Fiber optics
Explanation: Fiber optic technology provides high-speed internet access due to its ability to transmit data over long distances with high bandwidth and minimal signal loss.
Q83. What does Wi-Fi stand for?
a) Wireless Fidelity
b) Wide Fidelity
c) Wireless Field
d) Wide Field
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Correct Answer: a) Wireless Fidelity
Explanation: Wi-Fi stands for Wireless Fidelity, which refers to a set of wireless networking standards used for connecting devices to a network without physical cables.
Q84. What is the primary function of Bluetooth technology?
a) To connect to the internet
b) To transfer data over short distances
c) To manage network traffic
d) To secure network communications
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Correct Answer: b) To transfer data over short distances
Explanation: Bluetooth technology is used for short-range wireless data transfer between devices, such as between smartphones and wireless headphones.
Q85. What is the primary role of a gateway in a network?
a) To connect networks with different protocols
b) To filter network traffic
c) To assign IP addresses
d) To route data packets
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Correct Answer: a) To connect networks with different protocols
Explanation: A gateway connects networks that use different protocols, allowing for communication between them and translating data formats.
Q86. What is the primary purpose of DNS (Domain Name System)?
a) To translate IP addresses into domain names
b) To manage email servers
c) To provide website encryption
d) To route network traffic
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Correct Answer: a) To translate IP addresses into domain names
Explanation: DNS translates human-readable domain names into IP addresses, allowing devices to locate and connect to websites and services on the internet.
Q87. Which protocol is used for secure data transmission over the internet?
a) FTP
b) HTTP
c) HTTPS
d) SMTP
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Correct Answer: c) HTTPS
Explanation: HTTPS (Hypertext Transfer Protocol Secure) is used for secure data transmission over the internet by encrypting the data exchanged between a web server and a browser.
Q88. What does the acronym URL stand for?
a) Uniform Resource Locator
b) Universal Resource Locator
c) Unique Resource Locator
d) Uniform Routing Locator
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Correct Answer: a) Uniform Resource Locator
Explanation: URL stands for Uniform Resource Locator, which is the address used to access resources on the internet.
Q89. Which of the following is an application of the internet?
a) Local area network
b) VPN
c) Broadband
d) Email
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Correct Answer: d) Email
Explanation: Email is a common application of the internet that allows users to send and receive messages and attachments electronically.
Q90. What is a key feature of a web browser?
a) File encryption
b) Web page navigation
c) Network traffic monitoring
d) File transfer
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Correct Answer: b) Web page navigation
Explanation: A key feature of a web browser is web page navigation, which allows users to browse and access various websites and web resources.