GCIH Practice Test

GCIH Practice Test practice questions, page 26 of 34, with answer review and explanations.

Question 126

Which of the following actions is performed by the netcat command given below? nc 55555 < /etc/passwd

  1. It changes the /etc/passwd file when connected to the UDP port 55555.
  2. It resets the /etc/passwd file to the UDP port 55555.
  3. It fills the incoming connections to /etc/passwd file.
  4. It grabs the /etc/passwd file when connected to UDP port 55555.

Question 127

Which of the following programs can be used to detect stealth port scans performed by a malicious hacker? Each correct answer represents a complete solution. (Choose all that apply.)

  1. nmap
  2. scanlogd
  3. libnids
  4. portsentry

Question 128

Adam, a malicious hacker is sniffing the network to inject ARP packets. He injects broadcast frames onto the wire to conduct Man-in-The-Middle attack. Which of the following is the destination MAC address of a broadcast frame?

  1. 0xDDDDDDDDD
  2. 0x00000000000
  3. 0xFFFFFFFFFFFF
  4. 0xAAAAAAAAAA

Question 129

Mark works as a Network Administrator for Net Perfect Inc. The company has a Windows-based network. The company uses Check Point SmartDefense to provide security to the network. Mark uses SmartDefense on the HTTP servers of the company to fix the limitation for the maximum response header length. Which of the following attacks can be blocked by defining this limitation?

  1. HTR Overflow worms and mutations
  2. Ramen worm attack
  3. Melissa virus attack
  4. Shoulder surfing attack

Question 130

Victor works as a professional Ethical Hacker for SecureEnet Inc. He wants to scan the wireless network of the company. He uses a tool that is a free open-source utility for network exploration. The tool uses raw IP packets to determine the following: ✑ What ports are open on our network systems. ✑ What hosts are available on the network. ✑ Identify unauthorized wireless access points. ✑ What services (application name and version) those hosts are offering. ✑ What operating systems (and OS versions) they are running. ✑ What type of packet filters/firewalls are in use. Which of the following tools is Victor using?

  1. Nessus
  2. Kismet
  3. Nmap
  4. Sniffer