GCIH · Question #105
Which of the following reads and writes data across network connections by using the TCP/IP protocol?
The correct answer is C. Netcat. Netcat is a versatile networking utility that reads and writes raw data across network connections using the TCP/IP protocol. It is widely used in security testing for tasks such as port scanning, banner grabbing, and creating network connections.
Question
Which of the following reads and writes data across network connections by using the TCP/IP protocol?
Options
- AFpipe
- BNSLOOKUP
- CNetcat
- D2Mosaic
How the community answered
(45 responses)- A4% (2)
- C93% (42)
- D2% (1)
Why each option
Netcat is a versatile networking utility that reads and writes raw data across network connections using the TCP/IP protocol. It is widely used in security testing for tasks such as port scanning, banner grabbing, and creating network connections.
Fpipe is a TCP source port forwarder and redirector, not a general-purpose utility for reading and writing data across network connections.
NSLOOKUP is a command-line DNS query tool used exclusively to resolve hostnames and IP addresses, not to read or write arbitrary TCP/IP data.
Netcat is specifically designed to read and write raw data over TCP or UDP network connections, earning its reputation as the 'Swiss Army knife' of networking tools. It can open arbitrary TCP/UDP connections, listen on ports, and transfer data bidirectionally across a network. No other tool in the list provides this general-purpose TCP/IP data stream read/write capability.
Mosaic was an early graphical web browser used for viewing web pages and has no capability for raw TCP/IP data read/write operations.
Concept tested: Netcat as TCP/IP network read/write utility
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