What is the primary purpose of subnetting in IPv4 addressing?

To divide a large network into smaller, manageable broadcast domains

To increase the total number of available IP addresses globally

To assign a unique MAC address to each host

To replace IPv4 addresses with IPv6 addresses

Which characteristic is unique to TCP compared to UDP?

Three-way handshake before data transfer

Lower overhead due to minimal header size

No acknowledgment of received data

A technician is troubleshooting a slow file transfer between an engineering workstation and a data historian. The transfer uses FTP. The network team suspects packet loss is causing TCP retransmissions. Which tool and protocol would best confirm this?

Use nslookup to verify the FTP server's IP address.

Use arp -a to check the MAC address of the FTP server.

Use ping with a large packet size to test for packet loss, and check the TCP retransmission counters on the workstation.

Use tracert to map the route and identify the slow hop.

EC-CouncilICS/SCADA Cybersecurity

Domain 2Objective 3

TCP/IP Protocol Architecture ICSSCADA Practice Questions (Page 4)

Part of the TCP/IP and ICS/SCADA Protocols domain, which makes up ~13% of our current practice bank. EC-Council does not publish an official question count, but from its 120-minute exam (~50–80 total, ~7–10 in this domain), expect 1–2 from this objective — we provide 39 practice questions to prepare you well beyond it. (estimate)

39questions here

8free pages

7concepts

Questions 16–20

16application · easy
A junior network admin is reviewing a packet capture from a SCADA historian that receives data from multiple PLCs. The admin sees an Ethernet frame containing an IP packet, which contains a TCP segment, which contains a Modbus TCP payload. The admin wants to document the layer at which the Modbus TCP payload is processed. Which layer of the TCP/IP model should the admin identify?
Select an answer first
17foundation · easy
What is the primary purpose of subnetting in IPv4 addressing?
Select an answer first
18foundation · easy
Which characteristic is unique to TCP compared to UDP?
Select an answer first
19foundation · easy
Which protocol is used to translate a domain name, such as www.example.com, into an IP address?
Select an answer first
20expert · medium
A technician is troubleshooting a slow file transfer between an engineering workstation and a data historian. The transfer uses FTP. The network team suspects packet loss is causing TCP retransmissions. Which tool and protocol would best confirm this?
Select an answer first

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TCP/IP Protocol Architecture ICSSCADA Practice Questions (Page 4)

Questions 16–20

What is the primary purpose of subnetting in IPv4 addressing?

Which characteristic is unique to TCP compared to UDP?

Which protocol is used to translate a domain name, such as www.example.com, into an IP address?

A technician is troubleshooting a slow file transfer between an engineering workstation and a data historian. The transfer uses FTP. The network team suspects packet loss is causing TCP retransmissions. Which tool and protocol would best confirm this?

Keep studying — TCP/IP and ICS/SCADA Protocols