2.4 Explain the Purpose and Function of Common Network Security Technologies CYBERSECURITY-PRACTITIONER Practice Questions (Page 6)

Questions 26–30

1. 26foundation · easy

   Which of the following is an example of a VPN authentication method?

   • ASignature-based detection
   • BDNS query logging
   • CURL filtering
   • DUsername and password
   Reveal Solution Discussion Select an answer first
2. 27foundation · easy

   What is the role of encapsulation in a VPN tunnel?

   • ATo compress the data for faster transmission
   • BTo filter malicious content
   • CTo authenticate the user
   • DTo wrap the original packet in a new header for transmission through the tunnel
   Reveal Solution Discussion Select an answer first
4. 28foundation · easy

   How does a VPN protect data in transit?

   • ABy routing traffic through a proxy server
   • BBy encrypting the data and encapsulating it in a tunnel
   • CBy blocking all inbound traffic
   • DBy compressing the data to reduce bandwidth
   Reveal Solution Discussion Select an answer first
5. 29foundation · easy

   What is a common risk associated with URL filtering when traffic is encrypted?

   • AThe filtering device will slow down the network
   • BThe filtering device will block all encrypted traffic
   • CThe filtering device will require users to authenticate
   • DThe filtering device cannot see the URL and may allow malicious sites
   Reveal Solution Discussion Select an answer first
6. 30application · medium

   A security analyst is investigating a potential DNS tunneling attack. The analyst notices a large volume of DNS queries to a single domain with long subdomain labels. Which DNS security feature is most effective in detecting this activity?

   • AUsing a DNS firewall to block known malicious domains.
   • BBlocking all DNS queries to unknown domains.
   • CSignature-based detection of known tunneling tools.
   • DBehavioral analysis that flags unusual DNS query patterns, such as high volume and long labels.
   Reveal Solution Discussion Select an answer first