(Mar-2023) H12-891_V1.0 Exam Dumps Contains FREE Real Quesions from the Actual Exam

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NEW QUESTION 178
A router Router LSA is shown in the figure below, and the following statement is incorrect?

• A. This router has established an adjacency relationship
• B. This router is a DR
• C. This router supports external route ingestion
• D. The Router ID of this router is 1001

Answer: B

 

NEW QUESTION 179
Is the following GR description of ISIS correct?

• A. The GR feature of AISIS is turned on by default.
• B. ISIS's GR notifies of events and maintains neighbor relationships through CSNP messages.
• C. ISIS's GR has a total of four timers.
• D. ISIS's GR defines a new TLV structure to support this feature.

Answer: D

 

NEW QUESTION 180
Regarding the FTP protocol, is it correct in the description below?

• A. FTP always uses the TCP port to establish a data session and ICP port 21 to establish a control session
• B. In ftP Activee, the server side tells the client which port it expects to send data on by commanding
  "PORT"
• C. FTP always uses a TCP session to transmit control information and data information
• D. FTP always uses TCP port 21 to establish a data session and TCP port 20 to establish a control session
• E. In ftP-style, the client completes the initialization of the TCP session for control and data

Answer: E

 

NEW QUESTION 181
The following statement about the alliance is correct?( Single choice questions).

• A. Consortium can easily detect the routing loop within the AS because EBGP is running between the subAS.
• B. Subsystems within a consortium can use private AS numbers. Huawei NE/AR routers, a consortium can be configured with up to 32 subsystems
• C. The consortium divides an AS into sub-AS, and the alliance external AS still considers the consortium to be an AS
• D. The subas number of the consortium, which by default notifies BGP peers outside the consortium

Answer: D

 

NEW QUESTION 182
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=00=1
• B. M=1 0=0
• C. M=10=1
• D. M=10=0

Answer: A

 

NEW QUESTION 183
Is the following description of the BSR/RP mechanism correct?

• A. A C-BSR can also collect C-RP information by receiving C-RP packets
• B. BSR advertises BSR and C-RP information to all routers in the PIM-SM domain by flooding Bootstrap packets
• C. PIM-SM domain can have more than one C-BSR, but only one BSR can be elected by the C-BSR that receives the C-RP Packets are collected C-one RP information

Answer: A,B,C

 

NEW QUESTION 184
In the following topology diagram, R1 can access the Internet through R2 and R3, R1 and R2, R1 and R1 An EGP connection is established between R3 , and R2R3 belongs to the same AS, each via BGP Publishing a default route that requires R1 to visit lnternet's traffic preference R2, can the following practices be achieved?

• A. R2 specifies that the peer R1 sets the MED property to 150 in the export direction
• B. R2 specifies that the peer R1 sets the local priority to 150 in the export direction
• C. R1 specifies that the peer R2 beats the local priority in the import direction to 150
• D. R1 specifies that the peer R3 sets the MED property to 150 in the import direction

Answer: C,D

 

NEW QUESTION 185
The HTTP protocol is based on TCP, so http Flood attacks can be defended against HTTP Flood attacks using the TCP Flood attack prevention method.

• A. False
• B. True

Answer: A

 

NEW QUESTION 186
Which is the correct description of optimal routing election for each protocol in the following options?( Radio).

• A. Route entries in BGP that are unreachable for the next hop are also placed in the IP routing table.
  In the
• B. The OSPF protocol puts all the routing information in the LSDB into the IP routing table.
• C. From BGP and OSPF, different route entries to reach the same destination segment are learned, and the optimal route is selected to join the IP route table by comparing the protocol's preference value .
• D. BGP protocol, the best route to reach the same destination circumference is selected by comparing the cost values of the route entries.

Answer: C

 

NEW QUESTION 187
Because BGP is an EGP routing protocol, BGP routing policies can only be deployed between EBGP neighbors, and routing policies between IBGP neighbors are not valid.

• A. TRUE
• B. FALSE

Answer: B

 

NEW QUESTION 188
Regarding the MPLS handling mode of TTL, the following description is correct?

• A. Pipe mode. When an IP message passes through an MPLS network, the IPTTL minus l at the entry point is mapped to the MPLS TTL field
• B. In MMLSVPI, if you need to hide the structure of the MPLS backbone network, you can use the Uniform mode on Ingress for private network messages
• C. MPLS tags in the TTL, which mean the same as the TTL domain in the IP header. TTL prevents mpLS networks from creating routing loops
• D. In Unifor mode, when an IP message passes through an MPLS network, the inbound IPTTL is minus 1.
  The MPLSTTL field is a fixed value

Answer: C

 

NEW QUESTION 189
Regarding the Stub region in the OSPF protocol, the following statement is correct.

• A. Backbone zones cannot be configured as Stub zones
• B. ASBR cannot exist in the Stub zone
• C. Virtual connections cannot traverse the Stub region
• D. Type7 LSA injection is not allowed in the Stub zone

Answer: A,B,C,D

 

NEW QUESTION 190
Which timer for spanning tree protocol dictates how often to see the root bridge send configuration BPDUs?

• A. HOLD timer
• B. forwarding delay timer
• C. Hello timer
• D. STP timer
• E. Maxage timer

Answer: C

 

NEW QUESTION 191
As shown in the figure, as shown, as the AS10 has two paths to access THEA1, the optimal route passed from the 4S23 by default is now sprinkled with S00 to ass4O The odds belt wins even more worrying. Therefore, in the R2 configuration as follows, after the completion of the coordination, it is found that the most worrying route has not changed, and some operations can be adjusted to make the configuration
??[ R2]jpas-path-fiter l permit "4D0& [2]pouteplicy med permit node 10[R2-routepolicyli- match aspath-ilterl[R2-oute-policylapplycoast.20

• A. Configure destiny-med under the BGP process for R1
• B. Configure compare-di fferent-as-med under the BGP process for R2
• C. Configure the targeted-med under the BGP process for R2
• D. Configure compare-di fferent-as-med under the BGP process of Rl

Answer: A,D

 

NEW QUESTION 192
As shown in the figure, the PPP link between R1 and R2 is not in the same network segment, but the R1 and R2 direct connectors can communicate, and the Ethernet link cannot communicate under the same planning, why?

• A. The interconnect POS ports of R1 and R2 learn the 32-bit host route for each other's direct connections through IPCP
• B. The data packets of the interconnect POS ports of R1 and R2 do not need to encapsulate ethernet headers and do not need to use ARP to request MAC addresses
• C. The interconnect POS ports of R1 and R2 learn the 24-bit subnet route of each other's direct connection ports through IPCP
• D. The interconnect POS port of RI and R2, through LCP learns the MAC address of the opposite termination , does not need to use ARP to request the MAC address

Answer: A,B

 

NEW QUESTION 193
The following statement about IPv6 Over VXLAN is wrong as ?( Single choice questions).

• A. IPv6 over VXLAN means that the Overlay network of the VXLAN is an IPv6 network.
• B. The tunnel between VXLAN Layer 2 and Layer 3 gateways is an IPv4 network.
• C. IPv6 Over VLANs do not generate ND table entries.
• D. IPv6 over VXLAN solves the problem of insufficient IP address resources for end tenants.

Answer: C

 

NEW QUESTION 194
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