Last Updated on October 28, 2019 by Admin
ITN Chapter 3 Quiz Online
ITN -- Chapter 3 Quiz
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ITN — Chapter 3 Quiz
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Question 1 of 14
1. Question
1 pointsWhich message delivery option is used when all devices need to receive the same message simultaneously?Correct
Incorrect
When all devices need to receive the same message simultaneously, the message would be delivered as a broadcast. Unicast delivery occurs when one source host sends a message to one destination host. The sending of the same message from a host to a group of destination hosts is multicast delivery. Duplex communications refers to the ability of the medium to carry messages in both directions.
Hint
When all devices need to receive the same message simultaneously, the message would be delivered as a broadcast. Unicast delivery occurs when one source host sends a message to one destination host. The sending of the same message from a host to a group of destination hosts is multicast delivery. Duplex communications refers to the ability of the medium to carry messages in both directions.
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Question 2 of 14
2. Question
1 pointsWhat layer of the TCP/IP protocol model determines the best path through the network?Correct
Incorrect
The TCP/IP model consists of four layers: application, transport, internet, and network access. The internet layer determines the best path through the network.
Hint
The TCP/IP model consists of four layers: application, transport, internet, and network access. The internet layer determines the best path through the network.
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Question 3 of 14
3. Question
1 pointsAt which layer of the OSI model would a physical address be encapsulated?Correct
Incorrect
Physical addresses are encapsulated at the data link layer. Logical addresses, also known as IP addresses, are encapsulated at the network layer. Port addresses are encapsulated at the transport layer. No addresses are encapsulated at the physical layer.
Hint
Physical addresses are encapsulated at the data link layer. Logical addresses, also known as IP addresses, are encapsulated at the network layer. Port addresses are encapsulated at the transport layer. No addresses are encapsulated at the physical layer.
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Question 4 of 14
4. Question
1 pointsIf the default gateway is configured incorrectly on the host, what is the impact on communications?Correct
Incorrect
A default gateway is only required to communicate with devices on another network. The absence of a default gateway does not affect connectivity between devices on the same local network.
Hint
A default gateway is only required to communicate with devices on another network. The absence of a default gateway does not affect connectivity between devices on the same local network.
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Question 5 of 14
5. Question
3 pointsWhat three requirements are defined by the protocols used in network communcations to allow message transmission across a network? (Choose three.)Correct
Incorrect
The protocols used in network communications define the details of how a message is transmitted, including requirements for message delivery options, message timing, message encoding, formatting and encapsulation, and message size.
Hint
The protocols used in network communications define the details of how a message is transmitted, including requirements for message delivery options, message timing, message encoding, formatting and encapsulation, and message size.
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Question 6 of 14
6. Question
1 pointsWhat is the general term that is used to describe a piece of data at any layer of a networking model?Correct
Incorrect
The term protocol data unit (PDU) is used to describe a piece of data at any layer of a networking model. A packet is the PDU at the network layer. A frame is the data link layer PDU. A segment is the PDU at the transport layer.
Hint
The term protocol data unit (PDU) is used to describe a piece of data at any layer of a networking model. A packet is the PDU at the network layer. A frame is the data link layer PDU. A segment is the PDU at the transport layer.
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Question 7 of 14
7. Question
1 pointsWhat is the purpose of protocols in data communications?Correct
Incorrect
Protocols provide rules that define how a message is transmitted across a network. Implementation requirements such as electronic and bandwidth details for data communication are specified by standards. Operating systems are not specified by protocols, but will implement protocols. Protocols determine how and when to send a message but they do not control the contents of a message.
Hint
Protocols provide rules that define how a message is transmitted across a network. Implementation requirements such as electronic and bandwidth details for data communication are specified by standards. Operating systems are not specified by protocols, but will implement protocols. Protocols determine how and when to send a message but they do not control the contents of a message.
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Question 8 of 14
8. Question
1 pointsWhich layer of the OSI model defines services to segment and reassemble data for individual communications between end devices?Correct
Incorrect
The OSI model consists of seven layers: application, presentation, session, transport, network, data link, and physical. The transport layer defines services to segment, transfer, and reassemble the data for individual communications between the end devices.
Hint
The OSI model consists of seven layers: application, presentation, session, transport, network, data link, and physical. The transport layer defines services to segment, transfer, and reassemble the data for individual communications between the end devices.
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Question 9 of 14
9. Question
1 pointsWhy are open standards important in the data communications industry?Correct
Incorrect
Open standard protocols facilitate interoperability between software and hardware made by different manufactures. For example, open standards allow a client with a Linux operating system to connect to a server running a Microsoft Windows operating system. They would also be able to successfully exchange data. If all software, hardware, and protocols were proprietary, this would not be possible.
Hint
Open standard protocols facilitate interoperability between software and hardware made by different manufactures. For example, open standards allow a client with a Linux operating system to connect to a server running a Microsoft Windows operating system. They would also be able to successfully exchange data. If all software, hardware, and protocols were proprietary, this would not be possible.
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Question 10 of 14
10. Question
1 pointsWhich logical address is used for delivery of data to a remote network?Correct
Incorrect
The destination IP address is used for end-to-end delivery of data to a remote network. The destination MAC address is used for delivery on a local network. The destination port number identifies the application that should process the data at the destination. Source addresses identify the sender of the data.
Hint
The destination IP address is used for end-to-end delivery of data to a remote network. The destination MAC address is used for delivery on a local network. The destination port number identifies the application that should process the data at the destination. Source addresses identify the sender of the data.
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Question 11 of 14
11. Question
1 pointsFill in the blank.
The MAC address of a PC does not change when the PC is moved to a different network because the MAC address is embedded in the ………………… of the PC.Correct
Incorrect
The MAC address is also known as the physical or Ethernet address. Because it is encoded on hardware, on the Ethernet NIC, it will stay the same no matter where the NIC is geographically located.
Hint
The MAC address is also known as the physical or Ethernet address. Because it is encoded on hardware, on the Ethernet NIC, it will stay the same no matter where the NIC is geographically located.
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Question 12 of 14
12. Question
3 pointsWhich three acronyms/initialisms represent standards organizations? (Choose three.)
Correct
Incorrect
TCP/IP is a protocol stack that contains a lot of other protocols such as HTTP, FTP, and DNS. The TCP/IP protocol stack is required to be used when communicating on the Internet. A MAC address is an address that is burned into an Ethernet network card. OSI is the 7 layer model that is used to explain how networking works.
Hint
TCP/IP is a protocol stack that contains a lot of other protocols such as HTTP, FTP, and DNS. The TCP/IP protocol stack is required to be used when communicating on the Internet. A MAC address is an address that is burned into an Ethernet network card. OSI is the 7 layer model that is used to explain how networking works.
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Question 13 of 14
13. Question
1 pointsWhat type of delivery uses data link layer addresses?Correct
Incorrect
If a device is sending frames to another device on the same local network, it uses ARP to determine the MAC address of the receiving device. The sending device then uses the Layer 2 addresses to send the frames.
Hint
If a device is sending frames to another device on the same local network, it uses ARP to determine the MAC address of the receiving device. The sending device then uses the Layer 2 addresses to send the frames.
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Question 14 of 14
14. Question
1 pointsWhat type of message is sent to a specific group of hosts?Correct
Incorrect
A communication from a single source to a single destination is called a unicast. A communication from a single source to a group of destinations is called a multicast. A communication from a single source to all destinations on the same local network is called a broadcast.
Hint
A communication from a single source to a single destination is called a unicast. A communication from a single source to a group of destinations is called a multicast. A communication from a single source to all destinations on the same local network is called a broadcast.