Updated Jan-2024 100% Cover Real H12-891_V1.0-ENU Exam Questions - 100% Pass Guarantee
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NEW QUESTION # 101
Assume that BGP/MPLSIPVVPN, OSPF, LDP, and static routing protocols are already enabled on the PE router.
Which of the following protocols need to enable GR on PE in order to get NSF functionality? (Multiple choice questions).
- A. Static circuit
- B. OSPF
- C. BGP
- D. MPLS LDP
Answer: B,C,D
NEW QUESTION # 102
Which of the following sequences can be matched by the regular expression [^100|200]$?
- A. 300200 100
- B. 100 200 300
- C. 200 100 300
- D. 100,300,200
Answer: B,C,D
NEW QUESTION # 103
Which nationality meets the following two conditions: 1] BGP Router A can choose whether the Ulpdate message is based on the nationality. ( )
If Router B receives a Updae message containing a cross-hatch, run-by B does not have an identified solidity, but will also contain a multifaceted] Ulpdate retracts the advertisement to Router C.
Router C may recognize and apply this attribute. (Multiple choice questions).
- A. Multi_Exit_Disc
- B. Local_Pref
- C. Aggregator
- D. Community
Answer: C,D
NEW QUESTION # 104
Which levels are common in the OSI reference model and the ICP/IP model? (Multiple choice question)
- A. Data link layer
- B. Physical Layer
- C. Session layer
- D. Application Layer
- E. Transmission layer
- F. Presentation Layer
Answer: D,E
NEW QUESTION # 105
How many bits are there in the label field of MPLS?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 106
The following description of the PPPoE data frame is correct? (Multiple choice questions).
- A. The Ethernet_Type domain is fixed to Ox8863
- B. Once a PPPoE session is established, all Ethernet packets are unicast
- C. When PPPoE passes session data, Code must be set to Ox0
- D. The Session_ID of the PPP session is not allowed to change and must be the specified in the Discovery phase
Answer: C,D
NEW QUESTION # 107
CORRECT TEXT
As shown in the figure, the overload bit of ISIS is set in the configuration of router R3, and the following statement is correct
- A. R3 initiates the load state, and R1 and RZ will not calculate the LSP of R3 cattle in the SP tree.
- B. When the router runs out of memory, the system automatically sets the overload flag bit in the sent LSP packets. Irrelevant to whether the user has a set-overload command configured.
- C. R3 through import-route will not be published.
- D. R3's direct route will be ignored by R1 and R2 because of the setting of the overload bit.
- E. R3 will not be able to spread to R1 and R2
Answer: B,C
NEW QUESTION # 108
You expect to deploy multicast video applications on your private, on-premises network. To achieve this, you need to have a private multicast IP address in your network.
So which range of IP addresses can be used? (Single choice questions).
- A. 240000-254255255255
- B. 241.000-241.255255255
- C. 224000-224255255255
- D. 239000-239255255255
- E. 226000-226255255255
Answer: D
NEW QUESTION # 109
In order to study the working mechanism of the OSPFv3 protocol, a project to build a network topology is as follows, the configuration of R1 and R2 is as follows, please ask the LSA switched between R1 and R2 What are the types?
- A. Link-LSA
- B. Router-LSA
- C. Inter-area-prefix-LSA
- D. network-LSA
Answer: A,B,D
NEW QUESTION # 110
Mainstream Layer 2 technologies such as VXLAN, TRILL, NVGRE and MPLS
- A. True
- B. False
Answer: A
NEW QUESTION # 111
Which is the correct description of optimal routing election for each protocol in the following options? (Radio).
- A. The OSPF protocol puts all the routing information in the LSDB into the IP routing table.
- B. BGP protocol, the best route to reach the same destination circumference is selected by comparing the cost values of the route entries.
- 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. Route entries in BGP that are unreachable for the next hop are also placed in the IP routing table. In the
Answer: C
NEW QUESTION # 112
Regarding BGP's recognized arbitrary attributes, which of the following descriptions is correct?
- A. There is no requirement to be present in the Update message, and you can decide whether to add it to the Update message on a case-by-case basis
- B. The BGP router cannot recognize the
- C. All BGP routers must be recognized
- D. must be passed between BGP neighbors
Answer: A,C
NEW QUESTION # 113
What does RT do in MPLS VPN? Multiple choice questions).
- A. Allows the peer CE to decide which VPNv4 routes not to import into a particular VRF
- B. Allows the peer CE to decide which VPNv4 routes to import into a particular VRF
- C. Allows the peer PE to decide which VPNv4 routes to import into a particular VRF
- D. Allows peer PE to decide which VPNv4 routes not to import into a particular VRF
Answer: C,D
NEW QUESTION # 114
As shown in the figure, R1, R2, and R3 run OSPP at the same time and declare their respective ring ports, as described below is the error.
- A. RI can make Efilter-policy import filter the loopback route for R3
- B. R2 you can make Efilter in Area 0. The import command to filter the loopback route for R3 on
- C. RI, you can use the Make Efilter export command in Area 1 to filter loopback routes for R3
- D. R2, you can use the filter po y export command to filter R3's loopback route
Answer: D
NEW QUESTION # 115
Which of the following BGP attributes is not required in the Update message for a BGP route?
- A. Local-Preference
- B. WITH
- C. Origin
- D. AS_PATH
Answer: A,B
NEW QUESTION # 116
MQC, like PBR-can only be called under the device's Layer 3 interface.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION # 117
DHCP Relay is responsible for forwarding DHCP packets between the DHCP server and the DHCP client, assisting the DHCP server in dynamically assigning network parameters to the DHCP client.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 118
The most effective way to view device warnings through the CLI is?
- A. Display current-configuration
- B. Display clock
- C. Display interface brief
- D. Display alarm
Answer: D
NEW QUESTION # 119
There are routers as follows, according to which the compromise conclusion is wrong?
- A. R3 must be the DIS of some Level-2 link
- B. R3 must be the DIS of some Level-1 link
- C. The system ID of the R3 router is 000300000000
- D. The R3 router is a Level-1-2 router
Answer: B
NEW QUESTION # 120
A medium-sized campus network manages the network through the SNMP protocol, and the campus is highly network-safe, so which version of SNMP is recommended for management?
- A. SNMPv2C
- B. All versions are available to implement
- C. SNMPV3
- D. SNMPv1
Answer: C
NEW QUESTION # 121
IS-IS is a link-state routing protocol that uses the SPF algorithm for route calculations. As shown in the figure, at the same time, a certain area has IPV4 and IPV6 and runs IS-IS to achieve network interconnection, of which R2 only supports IPV4 Regarding the topology calculation of the network, which of the following statements is correct?
- A. If you want the IPv4 and IPv6 networks to compute the same shortest path tree. The IPv6-enable topology lpv6 command is required to enable the Russian force of IPv6 under the IS-IS process
- B. By default, IPv6 is not supported because R2. Therefore, in the shortest path tree formed by the JPv6 network computation, the path where R1 accesses R4 is: R1-R3-R4
- C. By default, IPv4 and IIPV6 networks are computed separately to form different shortest path trees
- D. By default, in the shortest path tree formed by the IPv6 network calculation, R1 accesses R4 as R1-R2-R4, since R2 does not support IPv6. Therefore, R2 will directly drop the IPv6 packet after receiving it, and select the traffic loss
Answer: D
NEW QUESTION # 122
Level-1-2IS transmits Level-2LSP to the Level-1 area if the AT location 1 in Level-2LSP is delivered It means that the Level-1lS in the area can be accessed to the outer area through Level-1-2IlS
- A. True
- B. False
Answer: B
NEW QUESTION # 123
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