Introducing TCP/IP Networks ICSSCADA Practice Questions (Page 9)

Questions 41–43

1. 41application · medium

   A network engineer is documenting the OT network and needs to explain to a junior engineer how the TCP/IP model maps to the OSI model. Which mapping is correct?

   • AThe TCP/IP transport layer corresponds to the OSI network layer.
   • BThe TCP/IP internet layer corresponds to the OSI data link layer.
   • CThe TCP/IP network access layer corresponds to the OSI network layer.
   • DThe TCP/IP application layer corresponds to the OSI session, presentation, and application layers.
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2. 42foundation · easy

   What is the primary function of the Address Resolution Protocol (ARP)?

   • ATo report errors in IP communication
   • BTo resolve IP addresses to MAC addresses
   • CTo assign IP addresses to devices
   • DTo resolve MAC addresses to IP addresses
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3. 43application · medium

   A network engineer is troubleshooting a slow file transfer between two OT devices. The engineer suspects that the transport layer is retransmitting segments. Which protocol header would the engineer examine to confirm this?

   • AARP header, because it contains hardware address fields.
   • BTCP header, because it contains sequence numbers and acknowledgment fields used for retransmission.
   • CIP header, because it contains fragmentation fields.
   • DUDP header, because it contains checksum and length fields.
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