무료 온라인 액세스 ECCouncil.312-50v13.v2025-09-09.q347 모의 시험 (Page 38)

312-50v13 문제 181

Being a Certified Ethical Hacker (CEH), a company has brought you on board to evaluate the safety measures in place for their network system. The company uses a network time protocol server in the demilitarized zone.
During your enumeration, you decide to run a ntptrace command. Given the syntax: ntptrace [-n] [-m maxhosts] [servername/IP_address], which command usage would best serve your objective to find where the NTP server obtains the time from and to trace the list of NTP servers connected to the network?

A. ntptrace -m 5 192.168.1.1

B. tptrace 192.1681.

C. ntptrace -n localhost

D. ntptrace -n -m 5 192.168.1.1

정답: D

The command usage that would best serve your objective to find where the NTP server obtains the time from and to trace the list of NTP servers connected to the network is ntptrace -n -m 5 192.168.1.1. This command usage works as follows:
* ntptrace is a tool that determines where a given NTP server gets its time from, and follows the chain of NTP servers back to their master time source. For example, a stratum 0 server, which is a device that directly obtains the time from a physical source, such as an atomic clock or a GPS receiver1.
* -n is a flag that outputs host IP addresses instead of host names. This can be useful if the host names are not resolvable or if the IP addresses are more informative1.
* -m 5 is a flag that specifies the maximum number of hosts to be traced. This can be useful to limit the output and avoid tracing irrelevant or unreachable hosts1.
* 192.168.1.1 is the IP address of the NTP server in the demilitarized zone, which is the starting point of the trace. This can be useful to find out the source and the path of the time synchronization for the network system1.
By using this command usage, the output will show the IP addresses, the stratum, the offset, the sync distance, and the reference ID of each NTP server in the chain, up to five hosts. This can provide valuable information about the accuracy, the reliability, and the security of the time service for the network system1.
The other options are not as suitable as option D for the following reasons:
* A. ntptrace -m 5 192.168.1.1: This option is similar to option D, but it does not use the -n flag, which means that it will output host names instead of IP addresses. This can be less useful if the host names are not resolvable or if the IP addresses are more informative1.
* B. tptrace 192.1681.: This option is incorrect because it uses a wrong tool name and a wrong IP address.
tptrace is not a valid tool name, and 192.1681. is not a valid IP address. The correct tool name is ntptrace, and the correct IP address is 192.168.1.11.
* C. ntptrace -n localhost: This option is not effective because it uses localhost as the starting point of the trace, which means that it will only show the local host's time source. This can be useful to check the local host's time configuration, but it does not help to find out the time source and the trace of the NTP server in the demilitarized zone, which is the objective of this scenario1.
References:
* 1: ntptrace - trace a chain of NTP servers back to the primary source

312-50v13 문제 182

Techno Security Inc.는 최근 John을 침투 테스터로 채용했습니다. 그는 대상 네트워크에서 열려 있는 포트를 식별하고 해당 포트가 온라인 상태인지, 그리고 방화벽 규칙 세트가 있는지 확인하는 업무를 맡았습니다.
John은 대상 네트워크에서 TCP SYN ping 스캔을 수행하기로 결정했습니다. John은 다음 Nmap 명령 중 어떤 것을 사용하여 TCP SYN ping 스캔을 수행해야 합니까?

A. nmap -sn -pp <대상 IP 주소>

B. nmap -sn -PO <대상 IP 주소>

C. nmap -sn -PS <대상 IP 주소>

D. nmap -sn -PA <대상 IP 주소>

312-50v13 문제 183

Which type of sniffing technique is generally referred as MiTM attack?

A. Password Sniffing

B. ARP Poisoning

C. MAC Flooding

D. DHCP Sniffing

312-50v13 문제 184

침투 테스터가 테스트를 위해 Windows 노트북을 구성하고 있습니다. Wireshark를 설정할 때, NIC가 무차별 모드로 작동하도록 하려면 어떤 라이브러리와 라이브러리가 필요합니까?

A. Libpcap

B. 윈캡

C. 아윈캡

D. 윈프롬

312-50v13 문제 185

도메인 이름 등록 연락처 정보가 포함된 공개적으로 이용 가능한 데이터베이스 세트로 구성된 시스템은 무엇입니까?

A. WHOIS

B. 캡차

C. 이아나

D. IETF

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