Wireshark capture files, like the DemoCapturepcap file found in this lab, have a extension, which stands for packet capture, next generation. (a) .packcng
(b) .paccapnextg
(c) .pcnextgen
(d) .pcapng

Option (d) is correct

Explanation:

Previously saved capture files can be read using Wireshark. For this, select the File then open the menu. Then Wireshark will pop up the “File Open” dialog box.

Wireshark capture files, like the DemoCapturepcap file found in this lab, have a .pcapng extension, which stands for packet capture, next generation.

i belive the answer you are looking for is d: the nether

answer; availability;