Which of the following would be BEST to use to accomplish the task?

A security analyst is performing a packet capture on a series of SOAP HTTP requests for a security assessment. The analyst redirects the output to a file After the capture is complete, the analyst needs to review the first transactions quickly and then search the entire series of requests for a particular string.

Which of the following would be BEST to use to accomplish the task? (Select TWO).
A . head
B . Tcpdump
C . grep
D . rail
E . curl
F . openssi
G . dd

Answer: A,B