Fill in the blank with the appropriate term. ______________________ is typically carried out by a remote attacker attempting to gain information or access to a network on which it is not authorized or allowed.
Correct Answer:
Network reconnaissance
Question 97
Which of the following Wireshark filters can a network administrator use to view the packets without any flags set in order to detect TCP Null Scan attempts?
Correct Answer: A
In Wireshark, a TCP Null Scan can be detected by setting a filter to show packets where no TCP flags are set. This is because a TCP Null Scan is characterized by sending TCP packets with no flags set in an attempt to identify open ports on the target system. The correct filter to use in Wireshark to detect such packets is TCP.flags==0x000, which will display only those packets where all flags are unset.
Question 98
Identify the minimum number of drives required to setup RAID level 5. Multiple
Correct Answer: C
Question 99
Which RAID level does not provide data redundancy?
Correct Answer: A
RAID level 0, also known as striping, involves splitting data evenly across two or more disks without parity information, redundancy, or fault tolerance. This means that if one drive fails, the entire array fails, resulting in total data loss. RAID 0 is typically used to increase performance, as it allows for faster read and write operations by using multiple disks simultaneously. However, because it does not duplicate data across the disks, it does not provide any form of data redundancy1. References: The explanation aligns with the standard definitions and functionalities of RAID levels as described in various authoritative sources on computer storage and network security, including materials from the EC-Council's Certified Network Defender (CND) course. For the most accurate and detailed information, please refer to the latest CND study materials and documents available through the EC-Council and other reputable sources on RAID technology.
Question 100
Which of the following is a Unix and Windows tool capable of intercepting traffic on a network segment and capturing username and password?
Correct Answer: B
Ettercap is a Unix and Windows tool for computer network protocol analysis and security auditing. It is capable of intercepting traffic on a network segment, capturing passwords, and conducting active eavesdropping against a number of common protocols. It is a free open source software. Ettercap supports active and passive dissection of many protocols (including ciphered ones) and provides many features for network and host analysis. Answer option C is incorrect. BackTrack is a Linux distribution distributed as a Live CD, which is used for penetration testing. It allows users to include customizable scripts, additional tools and configurable kernels in personalized distributions. It contains various tools, such as Metasploit integration, RFMON injection capable wireless drivers, kismet, autoscan-network (network discovering and managing application), nmap, ettercap, wireshark (formerly known as Ethereal). Answer option A is incorrect. AirSnort is a Linux-based WLAN WEP cracking tool that recovers encryption keys. AirSnort operates by passively monitoring transmissions. It uses Ciphertext Only Attack and captures approximately 5 to 10 million packets to decrypt the WEP keys. Answer option D is incorrect. Aircrack is the fastest WEP/WPA cracking tool used for 802.11a/b/g WEP and WPA cracking.
