A company has multiple branches. They use a VPN to encrypt all traffic to and from the central office. As they continue to grow, they've noticed a reduction in performance at the central office. Which of the following represents a possible short-term solution? Select two.
a. Upgrade the VPN concentrator.
b. Use site-to-site VPN connections.
c. Use a full funnel implementation.
d. Do not encrypt web-surfing traffic.
e. Use a split-funnel implementation.
f. Add more dynamic ports to the VPN concentrator.