Free H12-711 sample questions

Correct answers: HRP is responsible for synchronizing key configuration commands and session table entries between the active and standby firewalls.; HRP requires a dedicated physical or logical link, known as the heartbeat interface, for communication.

Correct answer: The IKE versions (IKEv1 vs. IKEv2) are different on the two peers.

A 'Payload Malformed' error during IKE negotiation often indicates that one peer is unable to parse the payload sent by the other. A common cause for this is a mismatch in the IKE version. For instance, if one side is configured for IKEv2 and the other for IKEv1, their packet structures are fundamentally different, leading to this error. A pre-shared key mismatch would typically result in an authentication failure error, not a malformed payload. Mismatched security policies would lead to a 'No Proposal Chosen' error.

Correct answer: True

This statement is true. The default security policy for intra-zone traffic (traffic originating from and destined for the same security zone) on a Huawei USG firewall is 'permit'. A security policy is only required to control traffic that flows between different security zones.

Correct answer: NAT Server (Port Forwarding)

NAT Server, also known as port forwarding or destination NAT, is used to publish internal services to an external network. It maps a combination of a public IP address and a port to an internal private IP address and port. This allows inbound traffic from the internet to reach the internal server. Static NAT creates a one-to-one mapping of entire IP addresses, which is not what is required here. Dynamic NAT and PAT are for outbound connections.

Correct answer: IPSec VPN

IPSec VPN is the industry standard for creating secure site-to-site connections over untrusted networks like the internet. It operates at the network layer (Layer 3) and can protect all IP traffic between the two locations, ensuring both confidentiality (through encryption with ESP) and integrity (through hashing with ESP or AH). SSL VPN is primarily used for remote user access, not for connecting entire sites.

Correct answer: To securely generate and exchange a shared secret key over an insecure channel.

The Diffie-Hellman algorithm is a key exchange protocol. Its purpose in IKE is to allow two parties, without any prior shared secret, to jointly establish a shared secret key over an insecure communication channel. This shared secret is then used to derive the symmetric keys for encrypting the subsequent IKE and IPSec communication. It does not perform payload encryption or peer authentication itself.

Correct answers: Alert; Block; Default

Correct answer: Authenticator

In an 802.1X architecture, there are three main components. The Supplicant is the client software on the end-user device. The Authentication Server (typically a RADIUS server) validates the user's credentials. The Authenticator is the network access device, such as a switch or wireless access point, that controls physical access to the network and acts as a proxy between the supplicant and the authentication server.

Correct answer: Man-in-the-Middle (MitM) Attack

A Man-in-the-Middle (MitM) attack is an active eavesdropping attack where the attacker intercepts a communication channel between two systems. The attacker can then read, insert, and modify data in the intercepted communication without either of the two parties knowing that the channel has been compromised.

Correct answer: Router A takes over and becomes the Master router.

Because preemption is enabled, a router with a higher priority will always attempt to become the Master. Router A has a higher priority (120) than Router B (100). When Router A comes back online, it will detect that the current Master (Router B) has a lower priority. Due to preemption being enabled, Router A will take over the Master role.