Wireshark WCNA Practice Exams
Last updated on Oct 21,2026- Exam Code: WCNA
- Exam Name: Wireshark Certified Network Analyst
- Certification Provider: Wireshark
- Latest update: Oct 21,2026
Network analysis is often considered ‘electronic surveillance’ or ‘wiretapping* and may be illegal.
- A . True
- B . False
Which Wireshark feature is used to make the process of following TCP Sequence/Acknowledgment numbers easier to interpret?
- A . sequence number flagging
- B . sequence number prediction
- C . relative sequence numbering
- D . actual sequence number interpretations
You are performing a TCP scan on a target while capturing your traffic with Wireshark.
Which statement about the analysis is correct?
- A . If you receive TCP Push responses, the target port is blocked.
- B . If you receive ICMP responses, the target port is likely firewalled.
- C . If only UDP responses are received, the target does not support TCP.
- D . If a TCP RST response is received, the target is not currently powered up.
DNS responses contain four sections: Question, Answer RR, Authority RR and Additional RR.
- A . True
- B . False
How can you quickly Identify all WLAN BSSIDs seen In a trace file?
- A . filter on wlan.bssid.id
- B . sort on the MAC header type
- C . open Statistics | Summary
- D . open Statistics | WLAN Traffic
Which format is used by capture filters?
- A . tshark format
- B . libpcap format
- C . display filter format
- D . Berkeley Packet Filtering (BPF) format
The Prepare a Filter feature creates a display filter in the display filter window, but does not apply the filter to the traffic.
- A . True
- B . False
Wireshark contains numerous pre-defined columns that can be added easily to the Packet List pane.
- A . True
- B . False
IP routers strip off the MAC header of incoming packets and apply a new MAC header before forwarding the packet onto the next network.
- A . True
- B . False
An unusually high number of RSTs or a high number of SYN/ACKs with no related data transfer is a strong indication that a TCP scan is underway.
- A . True
- B . False