Communication Technologies: NFC, Bluetooth, and More
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Questions and Answers

What is the range of ephemeral port numbers?

  • Ports 1 through 1000
  • Ports 0 through 1023
  • Ports 1024 through 65535 (correct)
  • Ports 5000 through 6000

Which protocol is used for file transfer between systems?

  • SSH
  • Telnet
  • SMTP
  • FTP (correct)

What is the purpose of the DNS protocol?

  • To authenticate remote access
  • To transfer emails between servers
  • To assign IP addresses dynamically
  • To convert names to IP addresses (correct)

Which port number is commonly used for web servers?

<p>tcp/80 (C)</p> Signup and view all the answers

What is the purpose of the DHCP protocol?

<p>To automate IP address configuration (A)</p> Signup and view all the answers

Which protocol is used for secure shell communication?

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

What is the primary function of a USB to DB-9 converter cable?

<p>To convert a USB signal to a DB-9 signal (D)</p> Signup and view all the answers

What is the main purpose of Near Field Communication (NFC)?

<p>To send small amounts of data wirelessly over a limited area (A)</p> Signup and view all the answers

What is the primary function of a Bluetooth connection?

<p>To connect to a Personal Area Network (PAN) for high-speed communication (A)</p> Signup and view all the answers

What is the main purpose of a hotspot?

<p>To extend the cellular data network to multiple devices (B)</p> Signup and view all the answers

What is the primary function of a touch pen?

<p>To enable precise selection on a touchscreen (D)</p> Signup and view all the answers

What is the primary function of an active stylus?

<p>To enable digital writing with pressure sensitivity (B)</p> Signup and view all the answers

What is the primary purpose of RAID?

<p>To provide redundancy and protect data (C)</p> Signup and view all the answers

What is the main disadvantage of RAID 0?

<p>It has low redundancy (C)</p> Signup and view all the answers

What is the benefit of RAID 5 over RAID 0?

<p>It provides high redundancy (B)</p> Signup and view all the answers

What is the main advantage of RAID 10?

<p>It offers the best performance and redundancy (C)</p> Signup and view all the answers

What is the primary factor to consider when choosing a motherboard?

<p>The specific scenario and requirements (A)</p> Signup and view all the answers

What is the main challenge of memorizing motherboard form factors?

<p>The dimensions are difficult to remember (B)</p> Signup and view all the answers

What is the name of the motherboard form factor developed by VIA Technologies in 2001?

<p>ITX (A)</p> Signup and view all the answers

What is the main difference between PCI and PCI Express?

<p>PCI is a parallel bus while PCI Express is a serial bus (A)</p> Signup and view all the answers

What is the purpose of a computer bus?

<p>To provide a communication path between components (D)</p> Signup and view all the answers

What is the name of the standardized motherboard form factor introduced by Intel in 1995?

<p>ATX (D)</p> Signup and view all the answers

What is the main advantage of PCI Express over PCI?

<p>PCI Express is faster than PCI (B)</p> Signup and view all the answers

What is the purpose of expansion slots on a motherboard?

<p>To provide additional capabilities to the computer (C)</p> Signup and view all the answers

What is the ANSI standard commonly referenced for pin and pair assignments of eight-conductor 100-ohm balanced twisted pair cabling?

<p>ANSI/TIA-568 (A)</p> Signup and view all the answers

What is the maximum cable length for USB 3.0?

<p>No specific length specified (C)</p> Signup and view all the answers

What is the maximum bandwidth of USB 3.2 Gen 2x2?

<p>20 Gbps (C)</p> Signup and view all the answers

What is the main advantage of Thunderbolt v3 over previous versions?

<p>Increased bandwidth (D)</p> Signup and view all the answers

What is the primary use of a D-subminiature connector?

<p>RS-232 serial communication (B)</p> Signup and view all the answers

What is the maximum cable length for a SATA Revision 3.0 device?

<p>1 meter (C)</p> Signup and view all the answers

What is the primary advantage of SCSI over other interfaces?

<p>Intelligent interface functionality (A)</p> Signup and view all the answers

What is the purpose of a punchdown block?

<p>To patch wires into a block (D)</p> Signup and view all the answers

What is the main difference between a straight tip and a subscriber connector?

<p>One can be broken apart for separate runs, while the other cannot (C)</p> Signup and view all the answers

What is the primary use of a Molex connector?

<p>To provide power to devices (D)</p> Signup and view all the answers

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