Questions and Answers
Which key steps should you take when implementing a VPN for a traveling salesperson? (Select two.)
What solution should you implement for a group of salesmen to access your private network remotely?
VPN concentrator
What is the primary purpose of a VPN?
Support secured communications over an untrusted network
Which VPN implementation uses routers on the edge of each site?
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Which VPN tunnel style routes only certain types of traffic?
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Which IPSec subprotocol provides data encryption?
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In addition to Authentication Header (AH), what other service is IPsec comprised of?
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What best describes IPsec when used in tunnel mode?
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Which VPN protocol typically employs IPsec as its data encryption mechanism?
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Which of the following VPN protocols is no longer considered secure?
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Study Notes
VPN Configuration for Mobile Salesperson
- Configure the VPN connection to utilize IPsec for strong encryption.
- Set browsers to send HTTPS requests through the VPN to protect sensitive data.
- VPNs provide secure communication over unsecured public Wi-Fi, mitigating risks from unencrypted connections, especially in public venues.
- Avoid using outdated protocols like PPTP with MS-CHAPv2 for VPN configurations over open wireless networks.
Remote Access VPN Solution
- Implement a VPN concentrator for centralized control of remote access to a private network.
- VPN concentrators accept VPN connections from multiple hosts, granting access to network resources.
- A DMZ (Demilitarized Zone) serves as an intermediary subnet between the private network and the internet.
- Utilize a RADIUS server for centralized authentication, authorization, and accounting across servers.
Purpose of VPN
- The primary function of a VPN is to enable secured communications over untrusted networks.
- VPNs can operate across various network types, including LAN, WAN, and internet connections.
Site-to-Site VPN Implementation
- Site-to-site VPNs use routers at each site to manage VPN connections, encrypting data packets for secure communication.
- Unlike individual hosts, routers handle the VPN connection, making it transparent to users.
Split Tunneling in VPNs
- Split tunneling allows routing only specific types of traffic through the VPN tunnel based on destination IP, while other traffic uses the regular internet pathway.
- Full tunneling routes all network traffic through the VPN, which can be unnecessary for some traffic types.
Encryption in IPsec
- Encapsulating Security Payload (ESP) is the IPsec subprotocol responsible for data encryption.
- Authentication Header (AH) ensures message integrity but lacks privacy; it is often combined with ESP.
Structure of IPsec
- IPsec encompasses two main components: Authentication Header (AH) for authentication and Encapsulating Security Payload (ESP) for data encryption.
- ISAKMP is utilized within IPsec for encryption key management.
IPsec Tunnel Mode
- IPsec in tunnel mode encapsulates the entire data packet, including headers, creating new packets with endpoint address headers.
- This method secures identities and original packet contents, commonly used for gateway communications across the internet.
L2TP and Data Encryption
- L2TP (Layer 2 Tunneling Protocol) typically uses IPsec for encrypting data, making it suitable for dial-up VPN connections.
- Other protocols like PPTP and PPP have limited support for encryption methods.
Security of VPN Protocols
- PPTP is considered outdated and insecure, losing relevance for safe VPN use.
- IPsec remains reliable for secure authentication and encryption, usable alone or with L2TP.
- SSL and TLS are applicable for securing various IP protocols, though they are not interoperable.
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Description
This quiz focuses on the challenges faced by salespeople who frequently travel and access networks remotely. Discover the issues related to using unencrypted public Wi-Fi and the impact on organizational tasks like database management. Test your knowledge about secure connectivity and data protection in sales environments.
