[Jan 11, 2022] Latest H3CSE-Routing & Switching GB0-381-ENU Actual Free Exam Questions
H3CSE-Routing & Switching GB0-381-ENU Dumps Updated Practice Test and 364 unique questions
NEW QUESTION 30
Run the command and display information on the router as follows:
From the above information, we can know that RTB has ______ IS-IS Level-2 routes sent to neighbors through LSP.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 31
The networking is shown in the figure:
The main configuration of the router is as follows:
RouterA]
bgp 100
router-id 1.1.1.1
peer 1.1.1.2 as-number 300
network 4.4.4.4 24
network 5.5.5.5 24
network 6.6.6.6 24
RouterB]
bgp 200
router-id 2.2.2.2
peer 1.1.2.2 as-number 300
network 7.7.7.7 24
network 8.8.8.8 24
network 9.9.9.9 24
RouterC]
bgp 300
router-id 3.3.3.3
peer 1.1.1.1 as-number 100
peer 1.1.2.1 as-number 200
peer 1.1.3.2 as-number 400
RouterD]
bgp 400
router-id 4.4.4.4
peer 1.1.3.1 as-number 300
peer 1.1.3.1 route-policrt1 import
ip as-path 1 permit _200_
route-policrt1 dennode 1
if-match as-path 1
route-policrt1 permit node 2
Assuming that the IP addresses of the interfaces on the four routers have been correctly configured, if there is no problem with the link, check the BGP routing table of Router D to see which of the following BGP routes:
- A. 5.5.5.0/24
- B. 7.7.7.0/24
- C. 9.9.9.0/24
- D. 4.4.4.0/24
- E. 6.6.6.0/24
- F. 8.8.8.0/24
Answer: A,D,E
NEW QUESTION 32
Which of the following statements about the AS_PATH attribute is correct:
- A. When advertising routes to EBGP neighbors, if the AS_PATH of a route contains the AS number of the opposite end, the route is ignored
- B. When advertising routes to EBGP neighbors, if the AS_PATH of a route contains the AS number of the opposite end, the route will not be sent to the opposite end
- C. AS_PATH is an optional pass attribute
- D. All BGP routes must contain AS_PATH, even if AS_PATH is empty
Answer: A,D
NEW QUESTION 33
On a BGP router, which of the following commands can be used to view the routes originated by the AS?
- A. displabgp routing-table ^$
- B. displabgp routing-table regular-expression ^$
- C. displabgp routing-table as-path ^$
- D. displabgp routing-table local-as
Answer: B
NEW QUESTION 34
Which of the following statements about BGP synchronization are wrong?
- A. Configure BGP synchronization to prevent routing black holes
- B. Configuration synchronization does not work on routes learned from EBGP peers
- C. If a full mesh IBGP neighbor relationship is established between all routers in the autonomous system, the BGP synchronization configuration can be cancelled
- D. Configuration synchronization only works on IBGP routes originated by the autonomous system
Answer: D
NEW QUESTION 35
The characteristics of the distance vector routing protocol include ________. (Choose one or more)
- A. Send routing updates periodically
- B. Deliver routing updates hop by hop
- C. Fast routing convergence
- D. Take the cost to the destination as the route metric
Answer: A,B
NEW QUESTION 36
In the topology shown in the figure, execute the following commands on RTA:
RTA-ospf-1] default-route-advertise
The default route cannot be observed in the routing table of the RTC router. The possible reason is ______
- A. There is no default route in RTA's routing table
- B. RTA failed to inject the default route into the OSPF area through the import command
- C. PBR is configured on RTC to filter the default route
- D. The alwa parameter is not configured in the default-route-advertise command
Answer: A,D
NEW QUESTION 37
Run the command and display information on the router as follows:
<RTA>displaisis brief
ISIS(1) Protocol Brief Information:
network-entit:
01.1111.1111.1111.00
is-level: level-1-2
cost-ste: narrow
preference: 15
Lsp-length receive: 1497
Lsp-length originate: level-1 1476
level-2 1476
maximum imported routes number: 10000
Timers:
lsp-max-age: 1200
lsp-refresh: 900
Interval between SPFs: 10
From the above information, you can know RTA______.
- A. Its Stem-ID is 1111.1111.1111.00
- B. Is a Level-1-2 router
- C. It is a Level-1 router
- D. Its Stem-ID is 1111.1111.1111
Answer: B,D
NEW QUESTION 38
The router RTA and RTB are eBGP neighbor relationships. RTA advertises route 10.10.10.0/24 and sets the community attribute, but looking at the routing table of RTB, it is found that the route 10.10.10.0/24 learned from RTA does not carry the community attribute. What could cause the loss of community attributes?
- A. The community attribute NO_ADVERTISE was set when RTA released 10.10.10.0/24
- B. RTA does not configure peerRTB advertise-communit
- C. The community attribute NO_EXPORT was set when RTA released 10.10.10.0/24
- D. RTB is not configured with peerRTA advertise-communit
Answer: B
NEW QUESTION 39
In the topology shown in the figure, execute the following commands on the RTA router:
RTA-ospf-1] default-route-advertise
RTA] ip route-static 0.0.0.0 0.0.0.0 192.168.0.2
The default route cannot be observed in the routing table of the RTC router. The possible reason is ______
- A. A routing policy is configured on the RTC to filter the default route
- B. Area1 is configured as an NSSA area
- C. The default route of RTA does not enter the OSPF area through the import command
- D. RTA's default route next hop address 192.168.0.2 is unreachable
Answer: A,B,D
NEW QUESTION 40
In the following BGP networking applications, EBGP neighbor relationships are established between the three routers. RTA receives Internet routes from RTB and RTC at the same time, so that it can reach the Internet 192.10.0.0/ through two links. 16.
The main configurations of RTA, RTB, and RTC are as follows:
RTA]
bgp 700
network 190.10.0.0 mask 255.255.0.0
undo snchronization
group as500 external
peer as500 as-path-acl 1 export
peer 201.1.1.1 group as500 as-number 500
group as600 external
peer as600 as-path-acl 1 export
peer 160.1.1.1 group as600 as-number 600
ip as-path-acl 1 permit ^$
RTB]
bgp 500
network 192.10.0.0 mask 255.255.0.0
undo snchronization
group as700 external
peer as700 route-policsetmed export
peer 201.1.1.2 group as700 as-number 700
route-policsetmed permit node 10
applcost 50
RTC]
bgp 600
network 192.10.0.0 mask 255.255.0.0
undo snchronization
group as700 external
peer as700 route-policsetmed export
peer 160.1.1.2 group as700 as-number 700
route-policsetmed permit node 10
applcost 100
According to the above configuration, which router will pass through the 190.10.0.0/16 network segment on RTA to access the 192.10.0.0/16 network segment?
Which attribute of BGP routing determines the principle of route selection through this router?
- A. RTB, MED
- B. RTC, MED
- C. RTC, Router ID
- D. RTB, Router ID
Answer: C
NEW QUESTION 41
In the network as shown in the figure, no dynamic routing protocol is enabled between all routers, and only static routes can be configured.
Then the correct configuration on RTE should be _________.
- A. ip route-static 172.16.0.0 255.255.254.0 S2/0
- B. ip route-static 172.16.0.0 255.255.254.0 S1/0
- C. ip route-static 172.16.0.0 255.255.252.0 S2/0
- D. ip route-static 172.16.0.0 255.255.252.0 S1/0
Answer: D
NEW QUESTION 42
In H3C equipment, the default priority value of OSPF internal routing is ________.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 43
There are a large number of static routes with tags of 100 and 200 on RTA. RTA and RTB run OSPF routing protocol, and RTB needs to learn all static routes on RTA. At the same time, it is required that on RTB, the priority of the route with tag 200 is 200.
To achieve the above requirements, which of the following configurations is correct?
- A. RTA configuration: route-polic1 permit node 10 if-match tag 100 route-polic1 permit node 20 if-match tag 200 ospf import-route static route-polic1 RTB configuration: route-polic2 permit node 10 if-match tag 200 applpreference 200 ospf preference ase route-polic2 150
- B. RTA configuration: ospf import-route static RTB configuration: route-polic2 permit node 10 if-match tag 200 ospf preference ase route-polic2 200
- C. RTA configuration: route-polic1 permit node 10 if-match tag 100 appltag 100 route-polic1 permit node 20 if-match tag 200 appltag 200 ospf import-route static route-polic1 RTB configuration: route-polic2 permit node 10 if-match tag 200 applpreference 200 ospf preference ase route-polic2 150
- D. RTA configuration: route-polic1 permit node 10 if-match tag 100 appltag 100 route-polic1 permit node 20 if-match tag 200 appltag 200 ospf import-route static route-polic1 RTB configuration: route-polic2 permit node 10 if-match tag 200 ospf preference ase route-polic2 200
Answer: C
NEW QUESTION 44
As shown in the figure, RTA establishes eBGP neighbor relationships with RTB and RTC respectively, and both RTB and RTC advertise a route N to RTA.
As shown in the figure, if you want RTA to give priority to the routes advertised by RTB, and the routes advertised by RTC as a backup, you need _____.
- A. When RTB advertises routes to RTA, MED is set to 200: When RTC advertises routes to RTA, MED is set to 100
- B. When RTB advertises routes to RTA, MED is set to 100: When RTC advertises routes to RTA, MED is set to 200
- C. Set the local preference value of route N to 200 on RTB, and set the local preference value of route N to 100 on RTC
- D. Set the inbound routing policy for RTB on RTA, and set the local priority of the routes advertised by RTB to 200
Answer: B,D
NEW QUESTION 45
Regarding the BGP aggregation function, which of the following statements are correct?
- A. Because BGP supports CIDR, BGP automatic aggregation can automatically aggregate the routes that exist in the routing table into natural mask routes.
- B. BGP aggregation is divided into automatic aggregation and manual aggregation.
- C. BGP manual aggregation can advertise aggregated routes and specific routes at the same time, or select specific routes to generate aggregated routes.
- D. When using BGP manual aggregation, you can use the attribute-polic- parameter to change the attributes of the aggregated route for more flexible control.
Answer: B,C,D
NEW QUESTION 46
The command to configure the silent interface on the router so that the router does not send OSPF protocol packets is _______.
- A. RTA]silent-interface serial2/0
- B. RTA-ospf-1-area-0.0.0.1]silent-interface serial2/0
- C. RTA-ospf-1]silent-interface serial2/0
- D. RTA-Serial2/0]silent-interface
Answer: C
NEW QUESTION 47
Run commands on the router and display information as follows:
From the above information, we can know that ______ IS-IS Level-1 routes have been added to the RTB routing table.
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
Answer: D
NEW QUESTION 48
After executing the displaospf peer command on the MSR router RTA, the router output is as follows:
It can be judged from the above output that ________.
- A. The OSPF Router ID of the neighboring router is 3.3.3.3
- B. The failure time between RTA and neighbors is still 37s
- C. RTA is not elected as DR on the interconnected network
- D. The Router ID of RTA's OSPF process 1 is 2.2.2.2
Answer: A,B,C
NEW QUESTION 49
As shown in the figure, RTA and RTB act as border routers between the BGP routing domain and the OSPF routing domain.
In order to realize the routing intercommunication between the BGP routing domain and the OSPF routing domain, the following route distribution strategy is not feasible: _______
- A. Two-way import of OSPF and BGP are performed on RTA and RTB respectively, and appropriate routing filtering strategies must be adopted to avoid routing loops and sub-optimal path problems.
- B. Adjust the OSPF external routing priority on RTA and RTB to make it less than the BGP routing priority; import BGP routes into OSPF on RTA and RTB, and advertise the routes in the OSPF domain to BGP via the network command
- C. Adjust the OSPF external routing priority on RTA and RTB to make it greater than the BGP routing priority; import BGP routes into OSPF on RTA and RTB, and advertise the routes in the OSPF domain to BGP via the network command
- D. Two-way introduction of OSPF and BGP is done on RTA and RTB respectively, without the need to consider loops and sub-optimal paths.
Answer: B,D
NEW QUESTION 50
In the OSPF broadcast network, there are 4 routers RTA, RTB, RTC, and RTD in the same network segment. The priorities are 2, 1, 1, and 0, and the router IDs are 192.168.1.1, 192.168.2.1, 192.168.3.1 and 192.168.4.1. If OSPF is enabled on the 4 routers at the same time, the BDR selected by OSPF is _____.
- A. RTA
- B. RTC
- C. RTB
- D. RTD
Answer: B
NEW QUESTION 51
Regarding the NSSA area of the OSPF protocol, the following statements are correct: _______
- A. Injection of Tpe3 LSA and Tpe4 LSA is not allowed in the NSSA area
- B. Virtual links cannot pass through the NSSA area
- C. Tpe7 LSA injection is not allowed in the NSSA area
- D. There can be multiple ASBRs in an NSSA area
Answer: B,D
NEW QUESTION 52
From RTA to RTD, etc., perform IS-IS networking as shown in the figure. The Stem-IDs of RTA, RTC, and RTD are shown in the figure.
Then ______ of the following options can be used as the Stem-ID of RTB.
- A. 0002.0003.0000
- B. 0004.0000.0000
- C. 0002.0000.0000
- D. 0003.0000.0000
Answer: A,C
NEW QUESTION 53
In the topology shown in the figure, by executing the import-route direct command on RTA, inject 192.168.0.0/24, 192.168.1.0/24, 192.168.2.0/24, 192.168.3.0/24 and 192.168.4.0/ 24 These five routes, and perform the following configuration on RTA, RTB and RTC respectively:
RTA]ospf 1
RTA-ospf-1]area 1
RTA-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 1.1.1.1 0.0.0.0
RTA-ospf-1]asbr-summar192.168.0.0 255.255.252.0
RTB]ospf 1
RTB-ospf-1]area 1
RTB-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTB-ospf-1-area-0.0.0.1]area 0
RTB-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
RTB-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
RTC]ospf 1
RTC-ospf-1]area 0
RTC-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
RTC-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
Then the possible routes in the RTB routing table are _____
- A. 192.168.4.0/24
- B. 192.168.0.0/24
- C. 192.168.0.0/22
- D. 1.1.1.1/32
Answer: A,C,D
NEW QUESTION 54
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