CompTIA Network+ (N10-007) — Question 63

A penetration tester has been tasked with reconnaissance to determine which ports are open on the network. Which of the following tasks should be done FIRST?
(Choose two.)

Answer options

• A. Network scan
• B. Banner grab
• C. Tracert
• D. DHCP server check
• E. Brute-force attack

Correct answer: A, C

Explanation

The first step in reconnaissance is to perform a Network scan (A) to identify live hosts and open ports. Following that, using Tracert (C) can help determine the route to target hosts, providing additional insight into the network structure. The other options, such as Banner grab (B), DHCP server check (D), and Brute-force attack (E), are not initial reconnaissance steps for identifying open ports.