H12-821 Online Practice Questions and Answers

CORRECT TEXT

See the following figure. RTA, RTB, RTC, and RTD are in the same AS and establish IBGP peer relationships through direct links. RTB an RTC are route reflectors (RRs), RTA and RTC are the RR clients of RTB, and RTB and RTD are the RR clients of RTC. If RTA advertises the route 10.1.1.0/24 to the BGP process, the Originator ID of the BGP route received by RTD is_____________.

CORRECT TEXT A Huawei firewall by default creates security zones named untrust, dmz, _________ and local. (Use Lowercase letters.)

Which of the following statement regarding the display ospf peer command output is true?

A. Address: 10.1,1.1 Indicates that the local interface address is 10.1.1.1.

B. Through negotiation during DD packet exchange, the local end becomes the slave.

C. Router ID indicates that the local router ID Is 10.1.1.1.

D. The DR address is 10.1.1.1

Which of the following statements regarding the firewall zone security level is false?

A. The configured security level cannot be changed.

B. Two zones cannot be configured with the same security level.

C. The default security level of the new zone is 1.

D. Only the security level of the user-defined zone can be configured.

Which Of the following IEEE 802.11 standards is also known as Wi-Fi 6?

A. 802.11ac

B. 802.11n

C. 802.11ax

D. 802.11b

Which of the following statements about multicast packet forwarding is true?

A. If a multicast data packet fails the RPF check, the packet must have been received through a sub-optimal interface. However, this interface still receives and forwards the multicast traffic downstream.

B. IGMP snooping cannot control the scope of multicast traffic flooding on a Layer 2 network.

C. The source address of a multicast packet is a unicast address.

D. In multicast transmission, the destination address of a packet can be the unicast address of a host.

Which of the following statements regarding the stateful inspection firewall is true?

A. When the stateful inspection firewall checks packets, packets of one same connection are not correlated.

B. Because UDP is a connectionless protocol, so the stateful inspection firewall cannot match UDP packets with the status table.

C. The stateful inspection firewall only needs to match the first data packet against a rule, and the subsequent packets of the connection are matched directly in the state table.

D. The stateful inspection firewall needs to match the rules for each incoming packet.

Which of the following statements regarding an IP prefix are true?

A. An IP prefix filter is used to filter IP address prefixes and cannot match an IP prefix number and a prefix length at the same time.

B. An IP prefix filter cannot be used to filter data packets.

C. An IP prefix filter is used to filter IP address prefixes and can match an IP prefix number and a prefix length at the same time.

D. An IP prefix filter can be used to filter data packets.

Which of the following statements regarding different LSA types is false?

A. LS Request packets contain only LS Type, LS ID, and Advertising Router.

B. LS Ack packets contain complete LSA information.

C. DD packets contain only LSA summary information, including LS Type, LS ID, Advertising Router, and LS Sequence Number.

D. LS Update packets contain complete LSA information.

Which of the following attribute must be carried in an Update message?

A. Local-pref

B. Prefval

C. MED

D. AS-Path

In BGP, the origin attribute of the routes imported using the import-route command is incomplete.

A. TRUE

B. FALSE

Which of the following statements is false, based on the following IGMP information on an interface of RTA?

A. The interval for sending group-specific Query messages is 60s.

B. The maximum time for response to Query messages is 10s.

C. The IP address of the interface is 192.168.1.1.

D. The IGMP version is IGMPV2.

According to BGP route selection rules, the route with the higher Local_Pref is preferred.

A. TRUE

B. FALSE

Which of the following statements is false?

A. If the current DR fails, the current BDR automatically becomes a new DR, and a BDR will be elected again.

B. A device with a higher router priority has a higher election priority.

C. When a router with the highest router priority joins an OSPF network, this router will become the new DR.

D. If two devices have the same router priority, the device with a larger router ID has a higher election priority.

When a routing policy is used to filter routes, which of the following route prefixes will be denied by the IP prefix below?

A. 1.1.1.1/26

B. 1.1.1.2/16

C. 1.1.1.1/32

D. 1.1.1.1/24