In this blog you will find the correct answer of the Coursera quiz Fundamentals of Network Communication Coursera Answer mixsaver always try to brings best blogs and best coupon codes
 

Week- 1

Practice Assessment – Communication Networks and Services

 

1. Which of the following networks use store-and-forward switching operation?

 

  • Telegraph networks
  • Wireless Networks
  • Computer networks
  • Telephone networks

2. There are similarities between message switching and packet switching. Which of following that applies to packet switching but not to message switching?

 

  • Variable length of information block
  • Supporting multiple applications
  • Store-and-forward
  • All of the above

3. Which of the following networks can be connection-oriented?

 

  • Telegraph networks
  • Computer networks
  • Telephone networks
  • All of the above

4. A protocol is a set of precise and unambiguous rules that governs

 

  • How two or more communicating entities in a layer are to interact
  • Messages that can be sent and received
  • Actions that are to be taken when a certain event occurs
  • All of the above

5. DNS is a domain-name-service that responds to queries of domain name to IP address or IP address to domain name. DNS uses services provided by

 

  • TCP
  • UDP
  • HTTP
  • None of the above

6. A network used to join the individual networks at different sites into one extended network is called

 

  • PAN
  • LAN
  • SAN
  • VPN

7. Upon receipt of a bad segment, UDP?

 

  • It does error control
  • Retransmission
  • It does flow control
  • It does not do flow and error control

 

 

Graded Assessment – Communication Networks and Services

 

1. Which of following protocol is HTTP built upon?

 

  • IP
  • SMTP
  • TCP
  • UDP

2. Which of following requirements are necessary for packet networks to support multiple and diverse applications?

 

  • Transfer arbitrary message size
  • Low delay for interactive applications
  • Packets have maximum length
  • All of the above

3. What was the concern of the telephone system that motivated the ARPANET design?

 

  • Scalability
  • Vulnerability
  • Efficiency
  • None of the above

4. Which of the following is an application layer protocol?

 

  • TCP
  • UDP
  • DNS
  • HTTP

5. Which of the following are features of ARPANET design?

 

  • Connectionless packet transmission
  • Routing tables at the packet switches
  • Destinations identified by unique addresses
  • All of the above

6. Bluetooth is an example of

 

  • Wide Area Network
  • Local Area Network
  • Metropolitan Area Network
  • Personal Area Network

7. In the layer hierarchy as the data packet moves from the upper to the lower layers, headers are

 

  • Modified
  • Removed
  • Rearranged
  • Added

8. The ________ is the physical path over which a message travels

 

  • Medium
  • Path
  • Route
  • Protocol

9. Three or more devices share a link in ________ connection

 

  • Unipoint
  • Multipoint
  • Point to Point
  • None of the above

10. Which of the following is true for Transport Control Protocol

 

  • Connection oriented
  • Process to Process
  • Transport layer protocol
  • Connectionless

 

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