312-49 · Question #387
Jessica works as systems administrator for a large electronics firm. She wants to scan her network quickly to detect live hosts by using ICMP ECHO Requests. What type of scan is Jessica going to…
The correct answer is A. ICMP ping sweep. An ICMP ping sweep (also called a ping scan) sends ICMP Echo Request packets to a range of IP addresses and listens for ICMP Echo Reply responses. Hosts that respond are considered 'live' or 'up.' This is a fast, low-level technique for host discovery across a subnet. A…
Question
Jessica works as systems administrator for a large electronics firm. She wants to scan her network quickly to detect live hosts by using ICMP ECHO Requests. What type of scan is Jessica going to perform?
Options
- AICMP ping sweep
- BPing trace
- CTracert
- DSmurf scan
How the community answered
(58 responses)- A93% (54)
- B2% (1)
- C3% (2)
- D2% (1)
Explanation
An ICMP ping sweep (also called a ping scan) sends ICMP Echo Request packets to a range of IP addresses and listens for ICMP Echo Reply responses. Hosts that respond are considered 'live' or 'up.' This is a fast, low-level technique for host discovery across a subnet. A tracert/traceroute maps the path packets take to a destination. A Smurf scan is a type of DDoS amplification attack using ICMP broadcasts. 'Ping trace' is not a standard term. Tools like nmap use -sn (formerly -sP) to perform ping sweeps.
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