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NEW QUESTION 155
H In the OSPF protocol, when the interface network type is NBMA (non-broadcast multiple access), the default Hello interval and neighbor failure time are respectively ______.
- A. 30, 120
- B. 40, 120
- C. 10, 40
- D. 10, 30
Answer: A
NEW QUESTION 156
The following functions of the convergence layer are ______. (Choose one or more)
- A. Access security control
- B. Possess a large number of interfaces for connecting with end user computers
- C. Complex routing strategy
- D. High-speed packet switching
Answer: C
NEW QUESTION 157
The characteristics of the distance vector routing protocol include ________. (Choose one or more)
- A. Take the cost to the destination as the route metric
- B. Deliver routing updates hop by hop
- C. Send routing updates periodically
- D. Fast routing convergence
Answer: B,C
NEW QUESTION 158
As shown in the figure, RTA and RTB are located in AS 100. The two establish IBGP neighbors. There is no route for RTA and RTC Internet segments on RTB: RTC is located in AS 200, and EBGP neighbors are established with RTA.
The main configuration is as follows:
RTA]
bgp 100
peerRTC as-number 200
peerRTB as-number 100
RTB]
bgp 100
peerRTA as-number 100
RTC]
bgp 200
peerRTA as-number 100
RTC cannot send the 192.168.1.0/24 route to RTA, but the 92.168.1.0/24 route does not appear in the IP 1 routing table of RTB.
To solve the above problems, what adjustments should be made in the configuration?
- A. RTC-bgp]peerRTA next-hop-local
- B. RTB-bgp]peerRTA next-hop-local
- C. RTA-bgp]peerRTB next-hop-local
- D. RTA-bgp]peerRTC next-hop-local
Answer: C
NEW QUESTION 159
Run the command on the router and its display information is 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. The area code is 01
- B. It is a Level-1-2 router
- C. Is a Level-2 router
- D. The area code is 01.1111
Answer: A,B
NEW QUESTION 160
IS-IS belongs to the ________ routing protocol and uses the ________ algorithm.
- A. EGP, shortest path first (SPF)
- B. IGP, shortest path first (SPF)
- C. IGP, distance vector (D-V)
- D. EGP, distance vector (D-V)
Answer: B
NEW QUESTION 161
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. All BGP routes must contain AS_PATH, even if AS_PATH is empty
- C. 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
- D. AS_PATH is an optional pass attribute
Answer: A,B
NEW QUESTION 162
The description of NET in IS-IS is wrong.
- A. NET is a special type of NSAP address
- B. The full name of NET is Network EntitTitle, which is similar to the Router ID in OSPF and BGP
- C. Each router can have up to 3 NETs, and these three NETs can be arbitrary
- D. In the IP network, the NSEL value in the NET address is all 0
Answer: C
NEW QUESTION 163
In the following statement about PBR (polic-based-route) load sharing application, the error is ______________.
- A. PBR can implement load sharing on the outbound interface according to the next hop of the route
- B. PBR can implement load sharing on the outgoing interface according to the source address of the message
- C. PBR can implement load sharing on the outgoing interface according to the different bearer services of the data stream
- D. PBR can realize load sharing on the outgoing interface according to different packet lengths
Answer: A
NEW QUESTION 164
The PBR configuration of a router is known as follows:
polic-based-route pbr_a permit node 10
if-match acl 3000
if-match packet-length 101 1000
apploutput-interface serial 2/0
Assuming that the strategy has been successfully applied, how will the relevant data flow on the router be forwarded?
- A. Messages with a message length of 101~1000 bytes will be forwarded according to policy routing
- B. Data streams matching Alc3000 will be forwarded according to policy routing
- C. Data streams matching Alc3000 and packets with a packet length of 1000 bytes or more will not be forwarded according to policy routing
- D. In the data stream matching Alc3000, the message with the message length of 101~1000 bytes will not be forwarded according to the policy routing
Answer: C
NEW QUESTION 165
After the various routers in the figure have established IS-IS neighbor relationships and reached synchronization, the routers that have sent CSNP messages have ______.
- A. RTB
- B. RTA
- C. RTC
- D. RTD
Answer: C,D
NEW QUESTION 166
As shown in the figure, in the IS-IS network, the RTA configuration commands are as follows, please complete them.
RTA]isis
RTA-isis-1]______
RTA-isis-1]interface serial 2/0
RTA-Serial2/0]isis enable 1
- A. network-entit01.1111.1111.1111.00
- B. network 192.168.12.1 0.0.0.0
- C. is-level level-1
- D. area 1
Answer: A
NEW QUESTION 167
In the topology shown in the figure, perform the following configuration in RTA and RTB respectively:
RTA-ospf-1-area-0.0.0.1]network 192.168.0.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.1.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.2.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.3.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.4.0 0.0.0.255
RTB] acl number 2000
RTB-acl-basic-2000] rule 0 permit source 192.168.1.0 0.0.0.255
RTB-ospf-1] filter-polic2000 import
Then the possible routes in the RTC routing table are _____
- A. 192.168.2.0/24
- B. 192.168.0.0/24
- C. 192.168.1.0/24
- D. 192.168.4.0/24
Answer: C
NEW QUESTION 168
Regarding filter-polic filtering OSPF routes, which of the following statements are correct?
- A. OSPF routing information can be filtered by the next hop based on the routing information to be added to the routing table
- B. It is not possible to filter OSPF routes through the IP address prefix list
- C. It is not possible to filter routing information through interfaces
- D. OSPF routes can be filtered by configuring ACL
Answer: A,C,D
NEW QUESTION 169
The routing table on a H3C router is displayed as follows:
H3C]disp ip rout
Routing Table: public net
Destination/Mask Protocol Pre Cost Nexthop Interface
10.0.0.0/8 OSPF 10 2 20.1.1.2 Ethernet0/0
20.1.1.0/30 DIRECT 0 0 20.1.1.1 Ethernet0/0
20.1.1.1/32 DIRECT 0 0 127.0.0.1 InLoopBack0
127.0.0.0/8 DIRECT 0 0 127.0.0.1 InLoopBack0
127.0.0.1/32 DIRECT 0 0 127.0.0.1 InLoopBack0
172.16.1.0/24 DIRECT 0 0 172.16.1.1 LoopBack1
172.16.1.1/32 DIRECT 0 0 127.0.0.1 InLoopBack0
192.168.1.0/24 DIRECT 0 0 192.168.1. LoopBack2
192.168.1.1/32 DIRECT 0 0 127.0.0.1 InLoopBack0
At the same time, configure the following commands on the router:
bgp 65400
network 172.16.0.0
network 192.168.1.0
network 10.0.0.0
Based on the above information, which of the following BGP routes should be in the router's BGP routing table:
- A. No BGP routing
- B. 192.168.1.0
- C. 172.16.1.0
- D. 10.0.0.0
- E. 20.1.1.0
Answer: B,D
NEW QUESTION 170
Execute displaip polic-based-route statistic interface ethernet1/0 on the router, and the following output
Interface Ethernet1/0 policbased routing statistics information:
polic-based-route: aaa
permit node 5
apploutput-interface serial1/0
Denied: 0,
Forwarded: 0
Total denied: 0,
forwarded: 0
According to the above output. Knowing _________
- A. The node number is 5, and the matching mode is reject mode
- B. The specified sending interface of matched packets is ethernet1/0
- C. The router applies a PBR named aaa on the interface Ethernet1/0
- D. The number of successful forwarding and forwarding failures of the policy routing is 0
Answer: B,C,D
NEW QUESTION 171
The DD (Database Description) message in the OSPF protocol has the function of ______.
- A. Describe the summary information of LSA
- B. Maintain the neighbor relationship when the router is in the ExStart state
- C. The master-slave relationship of negotiation interaction
- D. Respond to the LSA message and send the complete LSA requested by the neighboring router
Answer: A,C
NEW QUESTION 172
Regarding the Stub area and NSSA area of the OSPF protocol, the following statements are incorrect: _______
- A. Tpe4 LSA injection is not allowed in stub area and NSSA area
- B. The injection of Tpe5 LSA is not allowed in the stub area, while the injection of Tpe5 LSA is allowed in the NSSA area
- C. Both stub area and NSSA area allow injection of Tpe3 LSA
- D. The injection of Tpe7 LSA is not allowed in the stub area, while the injection of Tpe7 LSA is allowed in the NSSA area
Answer: A,C,D
NEW QUESTION 173
As shown in the figure, the actual bandwidth of the Ethernet interface E1/0 of the MSR router is 10Mbps, and the actual link bandwidth of the serial port S2/0 is 64Kbps.
In order to preferentially use high-bandwidth links and achieve the purpose of route backup, which of the following solutions is the most reasonable?
- A. The Ethernet interface runs RIP protocol. Then set the static route, the outgoing interface is serial port S2/0, and the priority value is set to 80
- B. The Ethernet interface runs OSPF protocol. Then set the static route, the outgoing interface is serial port S2/0, and the priority value is set to 80
- C. Both Ethernet interface E1/0 and serial port S2/0 run RIP protocol
- D. Set the static route, the outgoing interface is the serial port S2/0 and the Ethernet interface E1/0, the priority value is set the same
Answer: B
NEW QUESTION 174
P router RTA runs OSPF and BGP routing protocols at the same time. If an OSPF route is imported into BGP in network mode, the ORIGIN attribute value of the route in the BGP routing table is ____.
- A. OSPF
- B. EGP
- C. Incomplete
- D. IGP
Answer: D
NEW QUESTION 175
The correct description of the relationship between Domain and Area in IS-IS is ______.
- A. There can only be one Domain in an Area
- B. Area contains Domain
- C. There can be multiple Areas in a Domain
- D. Domain contains Area
Answer: C,D
NEW QUESTION 176
In OSPF NSSA area, ______ type LSA may be injected.
- A. Tpe1
- B. Tpe3
- C. Tpe5
- D. Tpe7
- E. Tpe4
- F. Tpe2
Answer: A,B,D,F
NEW QUESTION 177
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, Router ID
- B. RTC, MED
- C. RTC, Router ID
- D. RTB, MED
Answer: C
NEW QUESTION 178
In the topology shown in the figure, the following configurations are performed on RTA, RTB, RTC and RTD respectively:
RTA-LoopBack0] ip address 1.1.1.1 255.255.255.255
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]import-route direct
RTB-LoopBack0] ip address 2.2.2.2 255.255.255.255
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-LoopBack0] ip address 3.3.3.3 255.255.255.255
RTC]ospf 1
RTC-ospf-1]area 0
RTC-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
RTC-ospf-1-area-0.0.0.0]area 2
RTC-ospf-1-area-0.0.0.2]nssa default-route-advertise no-summarRTC-ospf-1-area-0.0.0.2]network
30.0.0.0 0.0.0.255
RTC-ospf-1]import-route direct
RTD-LoopBack0] ip address 4.4.4.4 255.255.255.255
RTD]ospf 1
RTD-ospf-1]area 2
RTD-ospf-1-area-0.0.0.2]network 30.0.0.0 0.0.0.255
RTD-ospf-1-area-0.0.0.2]network 4.4.4.4 0.0.0.0
RTD-ospf-1-area-0.0.0.2]nssa
Then _____ may not be injected into area 2
- A. Tpe7 LSA
- B. Tpe3 LSA
- C. Tpe5 LSA
- D. Tpe4 LSA
Answer: C,D
NEW QUESTION 179
In the figure, _______ is the correct IS-IS area division method.
- A. C
- B. A
- C. B
- D. D
Answer: A,C
NEW QUESTION 180
......
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