Packet Analysis with Python GPYC Practice Questions (Page 4)

Questions 16–20

1. 16application · medium

   A network tool needs to send a custom TCP packet with a specific source IP address that is not assigned to any local interface. The tool must bypass the OS protocol stack to achieve this. Which Python approach is appropriate?

   • AUse a standard TCP socket and set the SO_REUSEADDR option.
   • BUse a TCP socket and bind to the spoofed IP address.
   • CUse a UDP socket and set the IP_MULTICAST_TTL option.
   • DUse a raw socket with IP_HDRINCL to craft the IP header manually and send the packet.
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2. 17foundation · easy

   Which Scapy layer would you examine to analyze an HTTP request payload?

   • AHTTP
   • BRaw
   • CIP
   • DTCP
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4. 18foundation · easy

   Which Scapy function sends a crafted packet at Layer 3 (IP) and waits for a response?

   • Asr()
   • Bsend()
   • Csendp()
   • Dsrp()
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5. 19application · medium

   A QA engineer is testing a web API that requires a session cookie and a custom header for authentication. The engineer needs to make multiple requests to the API, maintaining the session across requests. Which requests library approach is correct?

   • AUse requests.get() with a headers dictionary that includes the cookie for each request.
   • BUse requests.Request() to build a request and send it with requests.send() each time.
   • CCreate a requests.Session(), set the header on the session, and use session.get() for each request.
   • DUse requests.get() with the header parameter for each request, manually managing the cookie.
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6. 20application · medium

   A network tool needs to send a raw ICMP packet with a custom type and code to test a firewall's ICMP filtering. The tool must run on Linux and requires root privileges. Which Python approach is correct?

   • AUse a standard socket with socket.SOCK_STREAM and send the ICMP packet as data.
   • BCreate a TCP socket and set the IP_TTL option to send the ICMP packet.
   • CCreate a standard UDP socket and send the ICMP packet as the payload.
   • DCreate a raw socket with socket.SOCK_RAW and socket.IPPROTO_ICMP, then send the crafted ICMP packet.
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