Advanced Network Forensics Practice Questions

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Advanced Network Forensics Practice Questions

Click here to download the Wireshark capture for use in the following questions.

Q1: Refer to the trace. Which host connection created the greatest amount of TCP traffic for a single TCP session (in terms of bytes transferred) [Hint: Statistics->Conversation List and Order by Bytes]:

Select one:

  • 192.168.75.1 and 192.168.75.132
  • 192.168.75.132 and 192.168.75.144
  • 192.168.75.1 and 192.168.75.144
  • 192.168.75.100 and 192.168.75.1
Reveal Answer

The correct answer is: 192.168.75.1 and 192.168.75.132

Q2: Refer to the trace. An NMAP scan starts at Packet 1327, what is the response from the machine that is being scanned when a requested port is open:

Select one:

  • [FIN]
  • [SYN]
  • [SYN][ACK]
  • [FIN][ACK]
  • [RST][ACK]
Reveal Answer

The correct answer is: [SYN][ACK]

Q3: Refer to the trace. In the initial phases of the trace, which host is being pinging by another host:

Select one:

  • 192.168.75.1
  • 192.168.75.145
  • 192.168.75.2
  • 192.168.75.130
Reveal Answer

The correct answer is: 192.168.75.145

Q4: Refer to the trace. At what is the name of the first JPEG picture in the network trace:

Select one:

  • default.jpg
  • home.jpg
  • banner.jpg
  • index.jpg
Reveal Answer

The correct answer is: default.jpg

This can be found using File -> Export Objects -> HTTP

Q5: Refer to the trace. Which host generated most IPv4 network packets [Hint: Statistics->End Points and Order by Packets]:

Select one:

  • 192.168.75.132
  • 192.168.75.100
  • 192.168.75.1
  • 192.168.75.144
Reveal Answer

The correct answer is: 192.168.75.132

Q6: Refer to the trace. At what packet ID does the first GIF file appear (Hint: http contains "GIF89a"):

Select one:

  • 92
  • 210
  • 21
  • 35
  • No GIF files in trace
Reveal Answer

The correct answer is: 35

Q7: Refer to the trace. An NMAP scan starts at Packet 1327, which host is being scanned:

Select one:

  • 192.168.75.132
  • 192.168.75.145
  • 192.168.75.2
  • 192.168.75.1
  • 192.168.75.146
Reveal Answer

The correct answer is: 192.168.75.132

Q8: Refer to the trace. For the NMAP scan, which packet identifies the start of the NMAP scan:

Select one:

  • 1325
  • 1356
  • 1327
  • 1334
Reveal Answer

The correct answer is: 1327

Q9: Refer to the trace. What is the MAC address of the host at 192.168.75.2:

Select one:

  • 00:0c:29:0f:71:a3
  • 00:0c:29:6b:0e:96
  • 00:50:56:f5:23:c8
  • 00:50:56:f5:2e:f3
  • Cannot determine
Reveal Answer

The correct answer is: 00:50:56:f5:2e:f3

Q10: Refer to the trace. For the Telnet connection which starts at Packet 204, identify one of the folders in C:\Documents and Settings:

Select one:

  • Home
  • User
  • Admin
  • Administrator
Reveal Answer

The correct answer is: Administrator

This can be found by following the TCP stream of the TELNET packets

Q11: Refer to the trace. For the NMAP scan, which host is scanning:

Select one:

  • 192.168.75.132
  • 192.168.75.1
  • 192.168.75.146
  • 192.168.75.2
  • 192.168.75.145
Reveal Answer

The correct answer is: 192.168.75.1

Q12: Refer to the trace. At what packet ID does the first JPEG file appear (Hint: http contains "JFIF"):

Select one:

  • 35
  • 18449
  • 21
  • 92
  • No JPEG files in trace
Reveal Answer

The correct answer is: 18449

This can be found by searching for 'image-jfif' or 'http contains "JFIF"'

Q13: Refer to the trace. For DNS requests, which transport layer protocol and port is used:

Select one:

  • UDP, Port 53
  • UDP, Port 8080
  • TCP, Port 53
  • TCP, Port 80
  • UDP, Port 80
  • TCP, Port 8080
Reveal Answer

The correct answer is: UDP, Port 53

Q14: Refer to the trace. For the Telnet connection which starts at Packet 204, identify one of the folders in C:\Documents and Settings:

Select one:

  • All Users
  • User
  • Admin
  • Home
Reveal Answer

The correct answer is: All Users

Q15: Refer to the trace. Which of the following hosts does not appear in network traffic:

Select one:

  • 192.168.75.2
  • 192.168.75.132
  • 192.168.75.1
  • 192.168.75.146
  • 192.168.75.145
  • 192.168.75.3
Reveal Answer

The correct answer is: 192.168.75.3

Q16: Refer to the trace. For the first SSH session, which host receives the connection request [Hint: tcp.port==22]:

Select one:

  • 192.168.75.1
  • 192.168.75.144
  • 192.168.75.132
  • 192.168.75.100
Reveal Answer

The correct answer is: 192.168.75.132

Q17: Refer to the trace. To search for a JPEG image, which filter is used:

Select one:

  • http contains "GIF89a"
  • http contains "gif89a"
  • http contains "\x50\x4b\x30"
  • http contains "JFIF"
  • http contains "jfif"
Reveal Answer

The correct answer is: http contains "JFIF"

Q18: Refer to the trace. What is the MAC address of the gateway on the 192.168.75.0 network:

Select one:

  • 00:50:56:f5:2e:f3
  • 00:50:56:f5:23:c8
  • 00:0c:29:6b:0e:96
  • 00:0c:29:0f:71:a3
  • Cannot determine
Reveal Answer

The correct answer is: 00:50:56:f5:2e:f3

This can be found using ip.addr eq 192.168.75.0/24 and icmp and looking for a packet where the source or destination is from a different network which will therefore have the mac address of the default gateway

Q19: Refer to the trace. What is the MAC address of the host at 192.168.75.132:

Select one:

  • 00:50:56:f5:2e:f3
  • 00:50:56:f5:23:c8
  • 00:0c:29:6b:0e:96
  • 00:0c:29:0f:71:a3
  • Cannot determine
Reveal Answer

The correct answer is: 00:0c:29:0f:71:a3