Components of TCP/IP Networks ICSSCADA Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   What is the primary benefit of using VLANs in a TCP/IP network?

   • ATo increase the physical distance between network devices
   • BTo replace the need for routers in a network
   • CTo segment a physical network into multiple logical broadcast domains
   • DTo encrypt all traffic within the network
   Reveal Solution Discussion Select an answer first
2. 2foundation · easy

   Which field is present in a TCP header but NOT in a UDP header?

   • AChecksum
   • BSource Port
   • CLength
   • DSequence Number
   Reveal Solution Discussion Select an answer first
4. 3foundation · easy

   What is the role of the Address Resolution Protocol (ARP) in IPv4 networking?

   • ATo assign IP addresses to devices dynamically
   • BTo map an IP address to a MAC address
   • CTo translate domain names into IP addresses
   • DTo encrypt data packets for secure transmission
   Reveal Solution Discussion Select an answer first
5. 4foundation · easy

   What is the primary purpose of a subnet mask in IPv4 networking?

   • ATo identify the network portion of an IP address
   • BTo encrypt data transmitted over the network
   • CTo assign a unique MAC address to each device
   • DTo translate domain names into IP addresses
   Reveal Solution Discussion Select an answer first
6. 5application · medium

   A SCADA system uses a custom protocol that sends small, time-sensitive control commands. The protocol does not require acknowledgment because a new command is sent every 100 ms. Which transport protocol is most appropriate and why?

   • ATCP, because it provides flow control to prevent overwhelming the receiver.
   • BUDP, because it guarantees delivery of every command.
   • CUDP, because it provides low latency and the application can tolerate occasional loss.
   • DTCP, because it ensures commands are received in order.
   Reveal Solution Discussion Select an answer first