Quiz No. 3 (Netw2) II-BINS

What does DMVPN stand for?

• Distributed Multi-Protocol Virtual Network

• Dynamic Multi-Point Virtual Network

• Dynamic Multipoint Virtual Private Network

• Direct Multipoint Virtual Private Network

What is the primary benefit of using DMVPN?

• Unreliable connectivity

• Limited bandwidth

• Increased latency

• Scalable and secure connectivity between multiple sites

Explain the concept of mGRE in DMVPN.

• mGRE in DMVPN only supports point-to-point tunnels

• mGRE in DMVPN increases network complexity by adding unnecessary overhead

• mGRE in DMVPN is a static configuration that requires manual intervention

• mGRE in DMVPN simplifies the creation of tunnels between spokes dynamically.

What is the purpose of NHRP in DMVPN?

• To encrypt all traffic between spokes

• To dynamically map public IP addresses of spokes to their private IP addresses.

• To provide redundancy for the hub router

• To assign IP addresses to new spokes automatically

Describe the difference between Phase 1, Phase 2, and Phase 3 of DMVPN.

• Phase 1 establishes mGRE tunnel, Phase 2 adds NHRP, Phase 3 includes mGRE with IPsec.

• Phase 1 uses OSPF, Phase 2 uses EIGRP, Phase 3 uses BGP

• Phase 1 requires static routing, Phase 2 requires dynamic routing, Phase 3 requires no routing protocol

• Phase 1 supports IPv4, Phase 2 supports IPv6, Phase 3 supports both IPv4 and IPv6

How does DMVPN provide scalability in a network?

• DMVPN limits the number of spokes in a network

• DMVPN dynamically establishes VPN tunnels between spokes

• DMVPN relies on manual configuration for scalability

• DMVPN uses static VPN tunnels between spokes

What are the key components of a DMVPN network?

• Hub, Spokes, NHRP, mGRE, IPsec

• VLANs, Subnets, NAT

• OSPF, BGP, EIGRP

• Switches, Routers, Firewalls

What is the role of the hub in a DMVPN network?

• Provides direct communication between spoke sites without routing

• Facilitates communication between spoke sites and maintains routing information.

• Manages the encryption keys for the network

• Acts as a backup server for the spoke sites

Explain the process of establishing a DMVPN tunnel.

• The process of establishing a DMVPN tunnel does not require any IPsec settings.

• Establishing a DMVPN tunnel involves configuring the spoke routers with public IP addresses only.

• Setting up a DMVPN tunnel does not involve verifying connectivity between the hub and spoke routers.

• The process of establishing a DMVPN tunnel involves configuring the hub router with a static public IP address, enabling NHRP on the hub and spoke routers, configuring the tunnel interface with the appropriate IPsec settings, setting up routing protocols like EIGRP or OSPF, and verifying connectivity between the hub and spoke routers.

What are the encryption options available in DMVPN?

• DES, 3DES, AES, AES-GCM

• RSA

• SHA-1

• MD5