H12-222 무료 덤프문제 온라인 액세스

On the DiffServ network, what is the main purpose of defining the service type of the EF classification?

• A.Provide channels for packet forwarding.
• B.Preferentially guarantee the services that require short delay, low packet loss, low jitter, and assured bandwidth.
• C.Ensure bandwidth for specific traffic.
• D.Ensure that packets are forwarded with the minimum delay.

DHCP uses different types of packets to implement different functions.
Which of the following is the function of the DHCP Offer packet?

• A.The DHCP server sends a DHCP Offer packet to the client, carrying configuration parameters, such as the IP address.
• B.The DHCP Offer packets are broadcast by the DHCP client to detect available servers.
• C.The DHCP client sends a DHCP Offer packet to the DHCP server to request configuration parameters, configuration acknowledgement, or extension of the IP address lease.
• D.The DHCP server sends DHCP Offer packets to respond to the DHCP Discover packets sent by the DHCP client, providing requested configuration parameters.

Which of the following packets are transmitted in unicast mode during IP address application by the DHCP client and IP address allocation by the DHCP server? (Multiple Choice)

• A.DHCP Offer
• B.DHCP Discover
• C.DHCP ACK
• D.DHCP Request

Multiprotocol Label Switching (MPLS) defined in IETF is a Layer 3 switching technology and consists of different devices.
Which of the following devices is responsible for adding labels or deleting labels from packets?

• A.Label distribution router
• B.Label edge router (LER)
• C.Label switching router (LSR)
• D.Label transmission router

Which of the following statements regarding VRRP is false?

• A.The master in the VRRP group is selected based on priorities.
• B.If the master fails, the new master is selected among backup devices based on priorities.
• C.The master sends gratuitous ARP packets, and notifies the connected device or host of its virtual MAC address.
• D.The priority ranges from 1 to 255. When the backup received VRRP Advertisement packets which the priority is 0, the backup discards the packets.