H12-211 Online Practice Questions and Answers

A DHCP server in the enterprise network is being used to allocated IP addresses to hosts. An administrator discovers however that some hosts are obtaining IP addresses outside of the scope of the DHCP server's address pool. What are the possible reasons for this? (Choose three).

A. Another DHCP server exists in the network and is allocating IP addresses to hosts that happen to be within a closer proximity than the authorized DHCP server

B. The hosts were unable to discover a DHCP server and therefore generated their own address in the

169.254.0.0 address range.

C. The hosts were unable to discover a DHCP server and therefore generated their own address in the

127.254.0.0 address range.

D. All addresses from the DHCP pool have been assigned

Refer to the graphic. In order to improve security, the two hosts use IPsec VPN to transmit dat

A. Which IPsec mode and protocol can be used to hide the host's IP address? (Choose two).

B. AH

C. transport mode

D. tunnel mode

E. ESP

In order to change some office locations frequently, network administrators often plan to access users from

different switches to the corporate network.

VLAN10, which method should I use to divide VLANs?

A. Port-based VLAN

B. VLAN based on protocol

C. VLAN based on MAC address

D. VLAN based on subnets

The Age time of the RIP route that is viewed by the command on the router is ().

A. RIP packet update interval

B. RIP route aging time

C. RIP route suppression time

D. RIP route switching time

NAPT allows multiple private IP addresses to be mapped to the same public IP address through

different port numbers. The following information about the port number in NAPT Description The correct one is ().

A. You must manually configure the mapping between port numbers and private addresses.

B. Only need to configure the range of port numbers

C. No need to do any configuration about the port number

D. Need to use ACL to assign port number

After deploying a DHCP server on the network, the administrator finds that some hosts have obtained the address specified by the DHCP server.

What are the possible reasons? (multiple choice)

A. There is another DHCP server in the network that is more efficient.

B. Some hosts cannot communicate properly with the DHCP server. These host client systems automatically generate addresses in the range of 169.254.0.0.

C. Some hosts cannot communicate properly with the DHCP server. These host client systems automatically generate addresses in the range of 127.254.0.0.

D. The address pool of the DHCP server has been completely allocated.

The port cost calculated by STP has a certain relationship with the port bandwidth. That is, the larger the bandwidth, the more overhead ().

A. small

B. Big

C. Consistent

D. Not necessarily

Which of the following is not included in AAA?

A. Audit

B. Authentication

C. Authorization

D. Accounting

On Huawei switches, VLAN 4095 cannot be created and VLAN 1 cannot be deleted.

A. TRUE

B. FALSE

On Sx7 series switches, which of the following VLANs can be removed by using command "undo"? (Choose all that apply.)

A. vlan 1.

B. vlan 2.

C. vlan 1024.

D. vlan 4094.