Proxy Servers, VPNs, and Secure Network Communication NDE Practice Questions (Page 10)

Questions 46–50

1. 46application · medium

   A security administrator is reviewing the company's VPN configuration. They notice that the VPN uses pre-shared keys (PSKs) for authentication and that the encryption algorithm is outdated. What is the best practice to improve the VPN's security posture?

   • AKeep the PSK but increase the key length
   • BSwitch to certificate-based authentication and modern encryption algorithms
   • CDisable encryption to improve performance
   • DUse the same PSK for all remote users for simplicity
   Reveal Solution Discussion Select an answer first
2. 47foundation · easy

   What is the primary role of a proxy server in network communication?

   • ATo replace the need for a firewall by inspecting all incoming packets
   • BTo act as an intermediary between client devices and the servers they request resources from
   • CTo provide a direct physical connection between a client and a server
   • DTo encrypt all traffic between two remote networks over the internet
   Reveal Solution Discussion Select an answer first
4. 48application · medium

   A security administrator is configuring a remote-access VPN for employees. The requirement is to ensure that only authorized company devices can connect and that the VPN traffic is protected against replay attacks. Which combination of controls should be implemented?

   • ADevice certificates for authentication and IPsec with anti-replay window
   • BPre-shared keys and SSL/TLS without certificate validation
   • CUsername/password authentication and PPTP encryption
   • DMAC address filtering and WireGuard without keys
   Reveal Solution Discussion Select an answer first
5. 49application · medium

   A field engineer needs to access internal file shares and databases from a hotel Wi-Fi network. The company mandates that all traffic between the laptop and the internal network be encrypted and authenticated. Which solution should the engineer use?

   • AA remote-access VPN client that establishes an encrypted tunnel to the corporate VPN gateway
   • BA forward proxy configured on the laptop
   • CA reverse proxy placed at the hotel
   • DA site-to-site VPN between the hotel and the corporate office
   Reveal Solution Discussion Select an answer first
6. 50foundation · easy

   What is a best practice for managing VPN access for employees?

   • AImplement multi-factor authentication for VPN logins
   • BAllow VPN access from any device without endpoint checks
   • CKeep VPN software outdated to avoid compatibility issues
   • DUse shared accounts for groups of employees to simplify management
   Reveal Solution Discussion Select an answer first