Objective 3.1 Identify Common Threats Used to Exploit Unsecure Network Services. CERTIFIED-IOT-SECURITY-PRACTITIONER Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   Why are UDP-based services particularly susceptible to exploitation?

   • AThey lack connection state and are easily spoofed or flooded
   • BThey use connection state to verify packets, which can be spoofed
   • CThey are only used on local networks, so they are not monitored
   • DThey always use encryption, which can be broken
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   How can fuzzing a network device lead to a denial of service?

   • ABy changing the device's IP address to an invalid one
   • BBy encrypting all traffic to the device, making it unreadable
   • CBy installing malware on the device through a USB port
   • DBy sending malformed inputs that cause the device to crash or exhaust resources
   Reveal Solution Discussion Select an answer first
4. 13foundation · easy

   Which attack involves modifying packets as they travel across the network?

   • APacket manipulation
   • BPacket sniffing
   • CTraffic analysis
   • DPort scanning
   Reveal Solution Discussion Select an answer first
5. 14foundation · easy

   Why are network services such as FTP and SNMP commonly targeted by attackers in IoT environments?

   • AThey are only used on isolated networks, so attacks go unnoticed
   • BThey are rarely used and therefore not monitored
   • CThey are always encrypted, so attackers want to break the encryption
   • DThey often have weak or default credentials and may expose sensitive data or control functions
   Reveal Solution Discussion Select an answer first
6. 15foundation · easy

   What is the primary goal of a Denial of Service (DoS) attack?

   • ATo modify the configuration of network devices
   • BTo gain administrative access to the target system
   • CTo disrupt the availability of a network service
   • DTo steal sensitive data from the target
   Reveal Solution Discussion Select an answer first