Quiz 11
A split tunnel configuration can be seen by inspecting the routing table of the VPN client machine and looking for a single gateway.
False
Border firewalls can be allowed to filter encrypted VPN traffic by placing them "in front of", that is, closer to the Internet than a VPN concentrator. Internet -----> Firewall -----> VPN concentrator ----> rest of LAN
False
Border firewalls can be allowed to filter encrypted VPN traffic by placing them "in front of", that is, closer to the Internet than a VPN concentrator. Internet -----> Firewall -----> VPN concentrator ----> rest of LAN
False
IPSec is a single protocol, not a suite of protocols.
False
SSH as a VPN is not subject to the TCP meltdown problem because SSH uses UDP port 22.
False
The TAP virtual network interface created when a VPN client is installed or a connection is made is a layer (blank) based tunnel.
Data Link
The TAP virtual network interface created when a VPN client is installed or a connection is made is a layer ____ based tunnel.
Data Link
IPsec operates at the (blank) layer of the TCP/IP OSI hybrid model.
Network
The TUN virtual network interface created when a VPN client is installed or a connection is made is a layer (blank) based tunnel.
Network
The TUN virtual network interface created when a VPN client is installed or a connection is made is a layer ____ based tunnel.
Network
VPNs can operate at which layers of the TCP/IP - OSI hybrid protocol model?
Network, Transport
Split tunnels can leak information if the ______ information in the configurations is not correct.
None of these
If OpenVPN uses TCP as the underlying protocol, it can experience a problem where it exceeds available bandwidth, known as the (blank).
TCP meltdown problem
OpenVPN uses the (blank) protocol to create a tunnel over which regular packets can be sent.
TLS
OpenVPN uses the ____ protocol to create a tunnel over which regular packets can be sent.
TLS
Which IPSec mode provides end-to-end encryption?
Transport
DNS information can be leaked from a VPN if the configuration does not explicitly set DNS servers that are within the tunnel.
True
IPSec ESP headers in tunnel mode encrypt the original IP headers, providing protection from some types of traffic analysis.
True
SSTP is a Microsoft proprietary VPN protocol that uses TLS to encrypt communications.
True
Wireguard is a new VPN protocol, which appears to be more secure than OpenVPN or even IPsec.
True
On disadvantage of using TLS as a Layer 4 VPN technology is that a full network stack _____ through it.
can't be tunneled
Split tunneling in a VPN refers to a situation where there are two gateways, one for ________ and the other for traffic to be routed out to the VPN server.
local LAN traffic
Wireguard is a VPN protocol which uses (blank) ciphers such as ChaCha20 and Curve25519.
modern
Wireguard is a VPN protocol which uses ______ ciphers such as ChaCha20 and Curve25519.
modern
An HTTPS connection between a browser and a web server represents the (blank) type of VPN today.
most widely used
An HTTPS connection between a browser and a web server represents the _______ type of VPN today.
most widely used
L2TP and PPTP are older protocols which are (blank).
mostly insecure
L2TP and PPTP are older protocols which are _______.
mostly insecure
IPSec tends to be one of the most ________ methods of creating a VPN because it runs at the IP layer.
transparent
