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CertNexus ITS-110 Exam Practice Questions (P. 2)

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Question #6
An IoT security architect wants to implement Bluetooth between two nodes. The Elliptic Curve Diffie-Hellman (ECDH) cipher suite has been identified as a requirement. Which of the following Bluetooth versions can meet this requirement?
  1. A
    Bluetooth Low Energy (BLE) v4.0
  2. B
    BLE v4.2
  3. C
    BLE v4.1
  4. D
    Any of the BLE versions

Correct Answer:
D

Question #7
An IoT security administrator realizes that when he attempts to visit the administrative website for his devices, he is sent to a fake website. To which of the following attacks has he likely fallen victim?
  1. A
    Buffer overflow
  2. B
    Denial of Service (DoS)
  3. C
    Birthday attack
  4. D
    Domain name system (DNS) poisoning

Correct Answer:
D

Question #8
Network filters based on Ethernet burned-in-addresses are vulnerable to which of the following attacks?
  1. A
    Media Access Control (MAC) spoofing
  2. B
    Buffer overflow
  3. C
    Packet injection
  4. D
    GPS spoofing

Correct Answer:
A

Question #9
An IoT security architect needs to minimize the security risk of a radio frequency (RF) mesh application. Which of the following might the architect consider as part of the design?
  1. A
    Make pairing between nodes very easy so that troubleshooting is reduced.
  2. B
    Encrypt data transmission between nodes at the physical/logical layers.
  3. C
    Prevent nodes from being rejected to keep the value of the network as high as possible.
  4. D
    Allow implicit trust of all gateways since they are the link to the internet.

Correct Answer:
B

Question #10
Which of the following methods is an IoT portal administrator most likely to use in order to mitigate Distributed Denial of Service (DDoS) attacks?
  1. A
    Implement Domain Name System Security Extensions (DNSSEC) on all Internet-facing name servers
  2. B
    Disable Network Address Translation Traversal (NAT-T) at the border firewall
  3. C
    Implement traffic scrubbers on the upstream Internet Service Provider (ISP) connection
  4. D
    Require Internet Protocol Security (IPSec) for all inbound portal connections

Correct Answer:
C

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