H12-891_V1.0 Dumps To Pass Huawei Certified ICT Expert Exam in One Day (Updated 610 Questions)
H12-891_V1.0 Exam Brain Dumps - Study Notes and Theory
NEW QUESTION 221
OSPFv3 uses the same route advertisement method as OSPFv2: advertising is done through the network command in the OSPFv3 area view.
- A. False
- B. TRUE
Answer: A
NEW QUESTION 222
What messages can Huawei equipment suppress traffic for?
- A. Broadcast
- B. Multicast
- C. Unknown unicast
- D. Known unicast
Answer: A,C,D
NEW QUESTION 223
The switch SWA and SWB are connected together by 2 Ethernet links, where the switch SWA has the following interface configuration:
- A. After link clustering is configured on both SWA and SWB, if MSTP is enabled on the switches SWA and SWB Both GigabitEthernetl1/0/1 and GigabitEthernetl/O/2 are the forwarding status of MSTP
- B. Without changing the current configuration, GigabitEthernet1/0/1 and GigabitEthernet1/0/2 can join the same aggregation group
- C. Only if the configuration of GigabitEthernet 1/0/2 is changed to match GigabitEthernet 1/0/1 can the two join the same aggregation group
- D. Because of the different VLANs allowed, GigabitEthernet1/0/1 and GigabitEthernet1/0/2 cannot join the same aggregation group
Answer: C,D
NEW QUESTION 224
In the city, that is, mpLS BGPVPN network, when the packet enters the public network forwarding, it will be encapsulated with two layers of MPLS tags, the following description of the two layers of tags, the error is ?
- A. The egress PE uses the inner tag when determining which egress CE the message should be sent to.
- B. Private network tags are carried and distributed by MP-BGP when routing, and public network tags are distributed by the LDP protocol.
- C. By default, the router assigns the same tag value to all VPNv4 routes destined for the peer
- D. MPLS BGPVPN uses two layers of tags: public labels (also known as outer labels) and private network labels (also known as inner labels).
Answer: C
NEW QUESTION 225
As shown in the figure, Department A of Branch 1 has access to the Internet, but Department B can only use an encrypted VP to access headquarters resources, and NAT can be configured on the egress device The policy enables Department A to access the Internet, while the PSecVPN (ESP Protocol) + Tunnel mode method configured for Department B gives it access to headquarters.
- A. Right
- B. Wrong
Answer: A
NEW QUESTION 226
All interfaces of the router have OSPF enabled, the Cost value of the link is identified in the figure, and the Loopback0 socket for R2 is advertised in area 1 , then Rl reaches 10022/32 with a Cost value of ?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 227
When configuring the source NAT and having no pat configuration parameters, which of the following statements is true?( Radio)
- A. Simultaneous source P address and source port translation
- B. Only destination IP address translation occurs
- C. Perform destination IP address and destination port translation
- D. Only source P address translation occurs
Answer: D
NEW QUESTION 228
There is an existing switch running the RSTP protocol. If the network topology changes, what happens to the Layer 2 forwarding table that is automatically learned by the switch?
- A. All table entries are dropped
- B. If the aging time is set to 15 seconds, entries that exceed the aging time are deleted
- C. Except for the table entry related to the edge port that is not deleted, all other table entries are deleted
- D. Table entries are dropped except for table entries related to edge ports and table entries related to ports that receive TC messages
- E. Only table entries related to the port that received the TC message are dropped
Answer: D
NEW QUESTION 229
The following statement about IPSec VPN is correct ?qo
- A. Two routers establish an IPSec VPN in brutal mode, so that the two devices can interact with a minimum of 4 messages to establish a tunnel.
- B. The two routers can establish OSPF neighbor relations and exchange intranet routes through the IPSec VPN tunnel
- C. Brutal mode can support NAT traversal, while main mode does not support NAT traversal.
- D. The two routers establish IPSecVPN in main mode, and from the 5th packet (included), the payload's data will be encrypted.
Answer: D
NEW QUESTION 230
The following description of 8021S deployment characteristics is correct?( Multiple choice question)
- A. Multiple bridges share a spanning tree instance
- B. Multiple VLANs share a spanning tree instance
- C. Each VLAN has one spanning tree instance
- D. All VLANs share a spanning tree instance
Answer: B
NEW QUESTION 231
The command to configure VRRP preemption delay is ?
- A. vrrp vrid 1 preempt-delay 20
- B. vrrp vrid 1 preempt-timer 20
- C. vrrp vrid 1 preempt-mode timer delay 20
- D. vrrp vrid 1 timer delay 20
Answer: C
NEW QUESTION 232
Which of the following messages does the BGP protocol support?
- A. Update
- B. Keepalive
- C. Hello
- D. Open
Answer: A,B,D
NEW QUESTION 233
Protocols with TCP ports 443, 179, 137, 110, and 23 are, in order: radio
- A. HTTPS,SNMP,POP3,DNS ,Telnet
- B. LDAP,SNMP,TFTP,POP3,Telnet
- C. HiPS,BGP, NetBios Name Server ,POP3,TelnetE. BGP,POP3,SNMP,TFTP,Teinet
- D. Finger,DHCP Server,NetBios Name Server,POP3,TelnetB
Answer: C
NEW QUESTION 234
RD is used to distinguish between the same IP address in different VPNs, and how many bits (radio) the RD contains
- A. 16
D,128 - B. 0
- C. 1
Answer: C
NEW QUESTION 235
The duplicate address detection feature for NDP in the following description is incorrect?
- A. Duplicate address detection is implemented via RS and RA messages
- B. The interface needs to perform duplicate address detection before enabling any of the unicast IPv6 addresses
- C. IPv6 unicast address is called a tentative address after it is assigned to an interface and before it is detected by duplicate addresses
- D. IPv6 duplicate address detection technology is similar to free ARP in IPv4
Answer: A
NEW QUESTION 236
When the IPv6 address of a host is configured with a stateless address configuration, and other parameters other than the address are obtained through DHCPv6, how to set the M and 0 bits in the RA message ?
- A. M=10=0
- B. M=10=1
- C. M=00=1
- D. M=1 0=0
Answer: C
NEW QUESTION 237
Based on the configuration shown in the figure below, it can be known that R4 has () interfaces advertised into IS-IS?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 238
The network administrator is ready to use the 6to4 automatic tunnel to carry IPv6 data on the IPv4 network, and the IPv4 address of the router interface is 1381485210, so the corresponding tunnel address is
2001:8a0e:55d2:1:230:65ff:fe2:9a6?
- A. False
- B. True
Answer: A
NEW QUESTION 239
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