220-1201 Practice Question: A user wants to wirelessly stream music from…

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✗

  Local Area Network (LAN)

  Why it's wrong here

  A Local Area Network (LAN) connects devices within a limited geographical area, such as a home, office, or school, typically using Ethernet or Wi-Fi to share resources and internet access. While Wi-Fi is a wireless technology, a LAN primarily facilitates communication among multiple devices through a central access point or switch, rather than a direct, ad-hoc, short-range audio stream between two specific devices via Bluetooth. Bluetooth operates independently of a traditional LAN infrastructure for such direct connections.

• ✗

  Wide Area Network (WAN)

  Why it's wrong here

  A Wide Area Network (WAN) spans vast geographical distances, connecting multiple LANs across cities, states, or even continents, forming the backbone of the internet and large corporate networks. Technologies like fiber optics, satellite links, or leased lines are used to establish these long-haul connections, primarily for internet access or inter-branch communication over thousands of miles. It is entirely unsuitable for the extremely short-range, direct device-to-device communication required for streaming music from a phone to a speaker within a single room.

• ✓

  Personal Area Network (PAN)

  Why this is correct

  A Personal Area Network (PAN) is specifically designed for short-range communication among personal devices within an individual's immediate workspace, typically extending only a few meters. Bluetooth is the quintessential technology for establishing a PAN, enabling direct wireless connections between devices like smartphones, wireless headphones, smartwatches, and portable speakers for tasks such as audio streaming or data synchronization. This direct, low-power link is ideal for wirelessly connecting a phone to a speaker.

• ✗

  Metropolitan Area Network (MAN)

  Why it's wrong here

  A Metropolitan Area Network (MAN) covers a geographical area larger than a LAN but smaller than a WAN, typically encompassing an entire city or a large campus. MANs are often used by municipalities, universities, or large organizations to connect multiple LANs within a metropolitan region, providing high-speed connectivity across a city for shared services. This extensive scale makes a MAN completely irrelevant for a direct, short-distance Bluetooth connection between a phone and a speaker in a single room.

Go deeper

Related to this question