HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Questions and Answers
Which of the following statements about IPSG is false?
On the OSPFv3 network shown in the figure, OSPFv3 parameters use default values. The LSDB is checked on one of the devices. The router IDs of R1, R3, and R4 are 10.0.1.1, 10.0.3.3, and 10.0.4.4, respectively. The Origin Router part of some LSAs is hidden. Complete this part. (Tokens can be reused.)
On the OSPF network shown in the figure, a network engineer finds that R1 and R2 have the same router ID, and both have imported default routes (with the default-route-advertise always command configured). Given this, which of the following statements is false?
As shown in the figure, there is a packet containing a three-layer label header. Please select the values (decimal) corresponding to the x, and Z fields in the figure.
After the cutover acceptance is completeD. what work still needs to be performed in the closing stage?
Network administrator A wants to use the AS-Path Fiter to match the routing entries of the BGP routing attribute AS_PATH [100 200 300]. Network administrator A sorts out the four configurations in the figure. Which of the following configurations can satisfy network administrator A's requirements? Require?
The figure shows the Router-LSA generated by a router. Which of the following statements are true based on the LSA?
When deploying MPLS/BGP IP VPN, which of the following descriptions is wrong about using BGP to exchange routing information between PEs and CEs?
What is wrong with this configuration description is:
[Huawei]dhcp enable
[Huaweijinte GigabitEthernet 0/0/1 [Huawei-GigabitEthernet0/0/1 ]dhcp option82 insert en [Huawei-GigabitEthernet0/0/1 ]dhcp snooping enable [Huawei-GigabitEthernet0/0/1]dhcp snooping trusted
BFD for OSPF refers to the association of BFD with OSPF to speed up OSPF's response to network topology changes. The OSPF neighbor relationship can enter the Full state only after the BFD session goes up. The OSPF neighbor relationship can go down only after the BFD session goes down.
As shown below:
On the ISIS network shown in the figure, R1 imports a default route using the default-route-advertise always level-1 command. In this case, R3 can learn this default route through IS-IS.
Which of the following will not cause the VRRP backup group to flap?
BFDLink state detection at the heart (millisecond) level can be achieved.
In BGP4+, what is the content of the next hop network address field carried in the P_REA, CHLRI attribute in the Update packet?
Regarding the label space of MPLS, the description is wrong:
Please match 0SPFv3LSA with its transmission range.
As shown in the figure, in a medium-sized network, BGP generally deploys dual RRs to improve R reliability. When deploying dual RRs, the ClusterIDs of the two RRs are generally set to be the same. What is the reason for this?
Service routes of an enterprise are transmitted on the network. Some configurations of PE1 and PE2 are shown in the figure. Which of the following LSAs may CE2 receive?
MPLS can carry multiple network protocol services, including unicast IPv4 services, multicast IPv4 services, unicast IPv6 services, and multicast IPv6 services.
The partial configuration of R1 is as follows. Which statement about OSPF on R1 is correct?
ospf 1 router-id 172.16.1 J
area 0.0.0.0
network 10.1.12.1 0.0.0.0
network 10.1.13.1 OQO.O
network 172 J 6.1.1 0.0.0.0
(Multiple Choice) Which LSAs in OSPFv3 can be flooded in an area?
In the MPLS network, there are different operation types for labels, among which the meaning of the "pop" action is:
The security protection actions that a secure MA, C address can perform does not include which of the following?
When troubleshooting the EBGP neighbor relationship, you find that the two directly connected devices use the loopback interface to establish a connection, so execute display current-configuration configuration bgp to check the unitary setting of peer ebgp-max-hop hop-count, which of the following statements is correct?
Please match the command with the function implemented.
[According to this picture, Peimen can judge?
cR3>display ipv6 routing-table protocol isis
An engineer uses two routers to test IPv6 services, and runs 0SPFv3 to implement IPv6 network interconnection. R1 is required to be able to access the loopback interface address of R2. The engineer checked the OSPFv3 routing table entry of R1, as shown in the figure, and found that there was no route to the loopback interface address of R2. Which of the following reasons could not be the cause?
If the temperature of the device is found to be too high, it can be concluded that the fan has failed
The ORF function of BGP can control the routing entries sent by neighbors. In order to achieve this purpose, the BGP router will send the list of routes to be filtered to the neighbors. Which tool is generally used to send the list to the neighbors?
As shown in the figure, Sitel and Site2 need to achieve mutual access through the operator's BGP/MPLS IPVPN. A known
The public network tunnel between PE1 and PE2 has been established (the label information is shown in the figure), and PF1 has
The 192.168.1.0/24 network segment route is advertised to PE2 through the MP.JIBGP neighbor relationship, and the route learning is normal. When grabbing between P and PE1, when Site2 accesses the 192.168.1.0/24 data of Sitel, the outermost label
What should the sign be?
FEC In/Out label
1.1.1.1/32 6662/3
the configuration file of the device. Is the following statement D wrong?
Ethernet is a broadcast-enabled network, and once there are loops in the network, this simple factory broadcast mechanism can have disastrous consequences. Which of the following phenomena may be caused by loops?
As shown below:
As shown in the figure, all routers run OSPF, because R3 is in the backbone area, so in the LSDB of R3 There are no three types of LSAO
According to this picture, you can judge
As its network scale expands, an enterprise plans to move scattered servers to the same equipment room for unified management. During hardware migration, network engineers do not need to perform device commissioning and therefore do not need to work out a migration solution.
A campus deploys OSPF to implement network interworking. The LSDB of R2 is shown in the figure. From this LSDB. it is possible to
What information was obtained?
From this picture, we can judge
On the network shown in the figure, OSPF is deployed on R1 and R2. IS-IS is deployed on R2 and R3. To enable R1 to obtain the route to 10.0.3.3/32, ISIS routes are imported into OSPF on R2. In this case, the next hop address to 10.0.3.3/32 in the routing table of R1 is_____.
Which of the following regular expressions can match only BGP routes that pass through AS200 and then through AS300
eyes?
When there are multiple redundant links in the IS-S network, multiple equal-cost routes may appear. Which of the following statements is false about equal-cost routing within an IS-IS network?
Which of the following reasons may cause the hosts in the same VLAN of the LAN to fail to communicate with each other?
Which of the following statements about VLAN aggregation is true?
After the cutover is completeD. it is generally necessary to check the following items?
What is the most efficient way to view device alarms through the CLI?
IPSG is a source IP address filtering technology based on Layer 3 interfaces. It prevents malicious hosts from forging authorized hosts' IP addresses to access authorized network resources.
You have set IS-IS IPv6 enable under the interface, what is the meaning of this command?
An administrator runs the display mpls Isp command to view LSPs on a device. The command output is shown in the figure. Which of the following statements are true?
(Drag and drop question) The configuration shown in the figure is performed on R2 to filter all incoming routes. Suppose there is an entry on R1
AS_Path attribute is [100 200 300 400] BGP routes need to be sent to R2, please help network administrators in
Adjust the AS order in the AS_Path attribute of the route on R1 to ensure that the route entry will not be routed by R2
route^policy AS-PATH permit node 10 if-match as-path-filter BGP route-policy AS-PATH deny node 20 ip as-path-filter BGP permit A[A2]00 400 100_
route-policy AS-PATH permit node 10 if-match ip-prefix BGP
apply as-pathoverwrite
ip ip-prefix BGP permit 10.0.0.0 24
Both VLAN aggregation and MUX VLAN are deployed on the enterprise network shown in the figure, and all switch interfaces connected to terminals are access interfaces. Given this, match PCI to PC4 with the hosts or servers that they can access on the network. (Note: A host cannot be matched with itself. For example, PCI cannot match PCI.) (Tokens can be reused.)
As shown in the figure, on the R1 router, network administrator A sends the routing entry to R2 through the routing policy
After modifying the Local Preference value, you can control the path of traffic leaving the AS100
As shown in the figure, configure a backhaul summary route 10.0.0.0/24 on the border route RT1. next hop
to RT2. At the same time, the default route to the external network is configured. At this point, a routing black hole will appear. The following is about routing
Is the black hole statement correct? (multiple choice)
As shown in the figure, OSPF is enabled on all the routers. The IP address marked in the figure is the IP address of the loopbackO interface of the device. The LoopbackO of R1 and R2 is advertised in area 1, the LoopbackO of R4 is advertised in area 0, and the LoopbackO of R3 and R5E is advertised in area 0. In area 2, which of the following IP addresses can ping each other?
On the OSPFv3 network shown in the figure, the IPv6 address of Loopback0 on R3 is 2000-3/128, and OSPFv3 is enabled. Which of the following statements are true?
SFFv2 is an IGP running on an IPv4 network: 0SPFV3 is an IGP running on an IPv6 network. Compared with 0SPFV2, SPFV3 has a similar LSA type, but has slightly different functions. Which of the following is not included in the LSA type of 0SPFV3?
A network engineer enters dir on the device to obtain the following file names. Which is most likely to be the version file of the device?
BGP4+ carries the next hop address of the IPv6 route through the Next Hop attribute in the Update packet. (Moved into Attribute 14)
Network administrator A wants to use AS-Path Filter to match the BGP routing attribute AS_PATH[100200300]. Network administrator A sorts out the four configurations in the figure. Which of the following configurations can meet the requirements of network administrator A?
What is the command to adjust the link cost of an IS-IS interface?
About the site in the BGPIMPLS IP VPN network architecture. Which of the following descriptions is correct?
IS-IS is a link-state routing protocol that uses the SPF algorithm for route calculation. As shown in the figure, a campus deploys both IPv4 and IPv6 and runs IS-IS to achieve network interconnection. R2 only supports IPv4. Which of the following statements is true about the topology calculation of this network?
As shown in the figure, Client1 and Client2 act as clients of RR1 and RR2 at the same time, and RR1 and RR2 are in the same
In a Cluster, R introduces 10 routes. It is assumed that the configuration of B, CP is correct. Neighbor relations have been established
Now, how many routing entries exist in the BGP routing table of Client2?
OSPF is deployed in a campus to achieve network interworking, and OSPF is also enabled on the GEO/0/2 interface of R3. Area1 is deployed as an NSSA area, and the device addresses are shown in the figure. An engineer configures a static route on R3 to access the loopback interface address of R4, and imports the static route in the 0SPF process. At this point, in the Type5 LSA received by R1, the forwarding address (FA) is____. (Note: Please fill in the IP address without mask)
As shown below:
In an MPLS network, functions such as neighbor discovery, session establishment and maintenance, and label management are implemented by exchanging LDP messages between SRs running the DP protocol. To ensure the reliability of message delivery, all LDP messages are sent and received based on TCP connections.
Which of the following statements is false when troubleshooting the dual-active failure of a VRRP backup group?
Link LSAs of OSPFv3 are propagated throughout the area.
The router ID of OSPF V3 needs to be configured in dotted decimal with a length of 128 bits.
Can Huawei equipment perform traffic suppression for Mingbi packets?
As shown in the figure, SF is enabled on all interfaces of the router, the cost value of the link is marked in the figure, and the Loopback0 interface of R2 is advertised in area 1, then the cost value of R1 reaching 10.0.2.2/32 is?
As shown in the figure, a park has deployedIPv6For business testing, the network has4router. run
0SPFV3Realize network interconnection. about theOSPFV3network generatedLSA. Which of the following statement it's wrong?
On the OSPF network shown in the figure, the cost values of links are marked, and OSPF IP FRR is enabled on R1. Which of the following statements is false?
When B, CPIMPLS TP VPN is deployeD. the OSPF VPN Route Tag (VPN Route Tag) is not transmitted in the extended community attribute of MP-BGP, but the local concept is only meaningful on PE routers that receive MP-BGP routes and generate OSPF LSAs.
An engineer uses two routers to test IPv6 services, and simulates the interconnection between the headquarters and branches by running BGP4+. The logical topology of the network is shown in the figure. Regarding the transmission of IPv6 routes between the two devices, which of the following Is a statement wrong?
There are multiple types of MAC address entries on a switch. Which of the following entries are manually configured and cannot be aged out?
A company consists of a head office and two branch offices, and uses MPLS VPN technology to transmit private network routes. In the networking mode of HuB&Spoke. Branches can only send and receive routes to and from the head office, and branches cannot directly send and receive routes to each other. In order to achieve the above requirements, which of the following schemes can the setting of RT be?
CutoverThe previous information collection can be used to determine whether the services before and after the cutover are normal.
What is the meaning of display current-configuration I include vlan command?
In what ways can log information be viewed:
As shown in the figure, MPLS LSP is set up in the network, and the goal is to establish an LDP session between SWA and SWB.
On the OSPFv3 network shown in the figure, area 1 is a stub area. Which of the following statements are true?
According to this picture, we can judge that R4 is on?
Deployment in a small and medium-sized networkOSPF,When viewing the routing table of a device, it is found that there are only directly connected routes.
It is not possible for the operation to cause the fault?
After the VLAN-based MA, C address flapping detection function is configured, if the MA, C address flaps. The interface can be configured to perform actions according to requirements. Which of the following is NOT a configurable action?
About the difference between NSR and NSF, which is correct?
Which of the following reasons may cause the hosts in the same--VLAN LAN to fail to communicate with each other
According to this figure, it can be known that in VLAN 300, from 17:22:38 to 17:22.44,00e0-fc3d-3bdB. 0 MA, C flaps occurred on 2020-06-04.
What is the value of the linkage between OSPF and BFD?
R1 executes the operation ping -a lO.l.Ll 10.5.16.2, what is the meaning of this command?
The RR rules for advertising routes violate the IBGP split horizon rules, which may cause loops in the AS. Which routing attributes does RR use to prevent loops?
Regarding MP-BGP, which of the following descriptions is wrong?
A network engineer provides a troubleshooting report after rectifying a fault. The actual network is simplified into the one shown in the figure, where R1 and R2 both have OSPF enabled, and function as the gateways of PCI and PC2, respectively. Given this, which of the following statements is false?
In OSPFv3, an LSA whose propagation range is one area has_____kind. (Fill in Arabic numerals only)
Which of the following is not part of the preparatory work for the cutover plan?
Match the alarm severity to the severity of the fault and countermeasures
C. Critical", Major-2, Minor-3, Warning-4 A
D. Critical-3, Major-2, Minor-1, Warning-4
If the display ospfv3 peer verbose command is run to check OSPFv3 neighbor information, the command output contains information such as the peer router ID, global unicast address of the peer interface, and neighbor status.
