Practice Quiz

MTEL Digital Literacy and Computer Science - Question List

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61.
Voice over Internet Protocol (VoIP) services use a network connection to relay phone calls under the User Datagram Protocol (UDP). At which layer of the TCP/IP model does this data exchange take place? 
  1. Application
  2. Transport
  3. Internet
  4. Link
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62.
What is the most common function provided by network switches?
  1. Managing Access to Network Resources.
  2. Providing a secure Internet connection.
  3. Creating a virtual private network (VPN).
  4. Supporting voice over Internet Protocol (VoIP) communication.
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63.
Which of the following recommendations is most likely to improve the performance of a long-range fiber optic network struggling with data loss and slow speeds over long distances? 
  1. Replacing the receiving-end router to increase the bandwidth it can process.
  2. Installing a transponder to receive and send optical data midway through the network.
  3. Adjusting the optical signal transmitter to increase its transmission frequency.
  4. Installing a transceiver to supplement optical data with electrical data through the middle part of the network.
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64.
A social networking company can use data mining, a deep analysis of internal data, to best address which of the following research questions? 
  1. What types of advertisements attract the most interest in each region of a country?
  2. Which user of the network has the longest contact list?
  3. How many users will sign up to join the social network in the next year?
  4. Which of the company's advertising relationships are most profitable?
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65.
Quality of Service (QoS) technologies most commonly manage network data traffic by:
  1. Minimizing the time that networks are down
  2. Compressing data before it is sent through the network.
  3. Setting priorities for certain types of data on the network.
  4. Increasing the speed at which user authentication occurs.
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