SEC504 무료 덤프문제 온라인 액세스

Which of the following statements are true about firewalking?
Each correct answer represents a complete solution. Choose all that apply.

• A.Firewalking works on the UDP packets.
• B.In this technique, an attacker sends a crafted packet with a TTL value that is set to expire one hop past the firewall.
• C.A malicious attacker can use firewalking to determine the types of ports/protocols that can bypass the firewall.
• D.To use firewalking, the attacker needs the IP address of the last known gateway before the firewall and the IP address of a host located behind the firewall.

TCP/IP stack fingerprinting is the passive collection of configuration attributes from a remote device during standard layer 4 network communications. The combination of parameters may then be used to infer the remote operating system (OS fingerprinting), or incorporated into a device fingerprint.
Which of the following Nmap switches can be used to perform TCP/IP stack fingerprinting?

• A.nmap -sT
• B.nmap -sU -p
• C.nmap -O -p
• D.nmap -sS

Which of the following commands can be used for port scanning?

• A.nc -z
• B.nc -w
• C.nc -t
• D.nc -g

Which of the following DoS attacks affects mostly Windows computers by sending corrupt UDP packets?

• A.Bonk
• B.Fraggle
• C.Smurf
• D.Ping flood

Adam, a novice web user, is very conscious about the security. He wants to visit the Web site that is known to have malicious applets and code. Adam always makes use of a basic Web Browser to perform such testing.
Which of the following web browsers can adequately fill this purpose?

• A.Safari
• B.Mozilla Firefox
• C.Lynx
• D.Internet explorer