Discover the protocol that provides secure, encrypted site-to-site VPN connectivity between offices for the CCNA 200-301 exam. Learn why IPSec is the industry standard for site-to-site VPNs on Cisco routers.
Table of Contents
Question
A network engineer needs to establish a secure site-to-site VPN between two offices. Which protocol should be used?
A. L2TP
B. PPTP
C. SNMP
D. IPSec
E. Telnet
Answer
D. IPSec
Explanation
IPSec provides encryption, authentication, and secure tunnels for site-to-site VPN connections.
IPSec (Internet Protocol Security) is the protocol used to establish secure site-to-site VPNs between two offices. IPSec provides encryption, authentication, and integrity for data transmitted across untrusted networks such as the Internet. It operates at the network layer, securing IP packets between VPN gateways at each site. IPSec uses protocols like ISAKMP/IKE for key management and negotiation, and supports a range of encryption and hashing algorithms to protect data. This ensures that all communication between the two offices is confidential and tamper-proof, making IPSec the preferred and most widely implemented solution for site-to-site VPNs on Cisco devices.
Cisco Certified Network Associate CCNA 200-301 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Cisco Certified Network Associate CCNA 200-301 exam and earn Cisco Certified Network Associate CCNA 200-301 certification.