H12-841_V1.5

Review 59 H12-841-V1-5 practice questions with answer explanations and community insights.

Question 1

Refer to the following figure. Which of the following solutions can be used to prevent users from accessing the network using statically configured IP addresses?

  1. DAI+IPSG
  2. DHCP Snooping+DAI
  3. DHCP Snooping+IPSG
  4. DAI-Port Security

Question 2

Which of the following technologies can be used to isolate users in the same VLAN, enhance user communication security, and prevent invalid broadcast packets from affecting services?

  1. Super VLAN
  2. Port isolation
  3. IPSG
  4. Ethernet port security

Question 3

Huawei switches support VLAN assignment based on interface, MAC address, protocol, and IP address.

  1. TRUE
  2. FALSE

Question 4

DHCP dynamically configures and centrally manages IP addresses of hosts. Which of the following statements about DHCP is false?

  1. If only the gateway and DNS server information needs to be delivered to a DHCP client, the DHCP Offer message sent by the DHCP server to the client does not carry the Options field.
  2. The Options field in DHCP messages uses the type-length-value (TLV) structure and can carry parameters such as the NTP server address, AC address, and log server address.
  3. DHCP supports static IP address allocation, in which it assigns fixed IP addresses to specified terminals.
  4. When a DHCP client and a DHCP server are located on different Layer 3 networks, a DHCP relay agent is needed for forwarding packets between the DHCP client and server.

Question 5

DHCP snooping is a security feature of DHCP that prevents DHCP servers and clients from being attacked. Which of the following statements about DHCP snooping are true? (Choose all that apply.)

  1. A DHCP snooping-enabled device listens to DHCP messages and records client information obtained from DHCP Offer messages.
  2. After DHCP snooping is enabled on a switch, you need to configure the interface that receives DHCP messages from a DHCP server as a trusted interface.
  3. The device discards messages, such as DHCP ACK and DHCP Offer messages, received on untrusted interfaces from a DHCP server.
  4. When the interface directly connected to a DHCP client goes Down, the corresponding DHCP snooping entry does not disappear until the IP address lease of the DHCP client expires.
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