Exact2Pass
On a BGP/MPLS IP VPN network, which of the following are carried when a PE advertises VPNv4 routes?
Which of the following reasons may cause the hosts in the same VLAN of the LAN to fail to communicate with each other?
In the process of viewing the debug output through the SSH terminal, a lot of information pops up. Which of the following operations can
Make the Moni tor terminal no longer pop up debug messages?
A campus has deployed IPv6 for service testing. There are 4 routers in the network, running 0SPFv3 to implement IPv6 network interconnection. As shown in the figure, an engineer checked the LSDB of R2 and intercepted one of the Link-LSAs. Which of the following statements is true about the description of this LSA?
On the network shown in the figure, EBGP peer relationships are established between neighboring routers through directly connected interfaces. The router ID of each router is 10.0.X.X, and the AS number is 6500X, where X is the number of the router. Both Rl and R4 have static routes to 192.168.1.0/24, which are imported to BGP through the import-route command. R3 is configured with the peer y.y.y.y as-path-filter 1 import command for all peers. Which of the following sets of commands enables R3 to select the route with the longest AS_Path to 192.168.1.0/24?
In PLSVPN, in order to distinguish IPv4 prefixes that use the same address space, the value of R0 is added to the IPv4 address. The correct description of the following options is:
The traditional BGP 4 can only manage IPv4 single routing information. In order to provide support for a variety of network layer protocols, MP-BGP extends BGP-4. MP-BGP uses address families to distinguish different network layer protocols. Which of the following address families are currently supported?
After the cutover is completeD. it is generally necessary to check the following items?
On the OSPFv3 network shown in the figure, area 1 is a stub area. Which of the following statements are true?
multiple equal-cost routes may appear. About the IS-IS network , which of the following descriptions is false?
On the OSPF network shown in the figure, area 1 is a stub area, area 2 is a totally stub area, and area 3 is an NSSA. Which of the following LSAs does not exist in areas 1, 2, and 3?
BGP allows you to use the filter-policy acl-number import command to filter received routes. The value of ad-number ranges from 2000 to 3999.
O TRUE
O FALSE
Configured on an interface: isis timer hello 5 level-2, which of the following statements is correct?
Please pair the following DHCP attack types with corresponding explanations.
In an MPLS domain, LSR can be divided into Ingress LSR, Transit LSR and Egress LSR according to the different processing methods of LSRs for data. For the same FEC. a certain LSR can be the Ingress LSR of the FEC or the Transit LSR of the FEC. LSRO
The IS-IS Level-1 neighbor relationship between R3 and R4 is not established. According to the information in this figure_What is the possible reason?
As shown in the figure, private network routing information is exchanged between PE1 and PE2 and their respective CEs through OSPF, and the same DomainlD is set on both PE1 and PE2. When routes are imported from BGP to OSPF on PE2, it is possible that Which of the following types of SAs are passed to CE2?
Configuring DHCP Snooping can be used to prevent imitator attacks, so the configuration process needs to include the following
What are the steps?
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.
R1 executes the operation ping -a lO.l.Ll 10.5.16.2, what is the meaning of this command?
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 are true?
There is the concept of forwarding equivalence class FEC in MPLS. The following description is wrong:
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?
As shown in the figure, OSPF is deployed in a campus, and Area 1 is deployed as an NSSA area. In the case of missing header, R2 will automatically generate a missing header route of Type 7 LSA and flood it in the NSSA area
Which of the following statements about LDP Label Retention - Free Way is true:
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?
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?
The figure shows the LSP information of R1 and R3 on an MPLS network. An administrator runs the ping -a 1.1.1.1 3.3.3.3 command on R1. Given this, which of the following statements is true?
In BGP/MPLS IP VPN, the 0SPF multi-instance process uses the DN bit to prevent Type5 LSA loops.
IGP converges faster than BGP, which may cause network traffic loss. By enabling the OSPF and BGP linkage feature of the device, the device can keep the OSPF and BGP linkage during the set linkage time.____The router makes the link metric value in the LSA advertised to be the maximum value, so as to inform other OSPF devices not to use this router to forward data, so as to avoid traffic loss. (Note: If English letters are involved, all uppercase)
As shown in the figure, an engineer uses 4 routers to test branch network interoperability. Among them, R1, R2, and R3 in branch 1 deploy OSPF to implement network interoperability. R2, R3, and R4 in branch 2 deploy IS-S to implement network interoperability. Now the engineer wants to implement R1 to access the loopback interface address of R4. Which of the following operations can meet this requirement?
When deploying MPLS/BGP IP VPN, which of the following descriptions is wrong about using BGP to exchange routing information between PEs and CEs?
Since BGP is an EGP routing protocol, BGP routing policies can only be deployed between EBGP neighbors.
The routing policy deployed between IBGP neighbors is invalid.
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.
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.
During the test phase of the cutover, the criteria to indicate that the test has been completed are:
Which of the following statements is false when troubleshooting the dual-active failure of a VRRP backup group?
What is the meaning of display current-configuration I include vlan 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?
Which of the following descriptions is correct about configuring static LSPs in MPLS networks?
An engineer uses two routers to test IPv6 services, and simulates the headquarters and branches by running BGP4+
of interconnection. As shown in the figure, an engineer captures packets to view the update packets sent by R1. About this message
Description of information, which of the following statements is correct
MPLS can carry multiple network protocol services, including unicast IPv4 services, multicast IPv4 services, unicast IPv6 services, and multicast IPv6 services.
On the network shown in the figure, the DHCP server function is enabled on GEO/0/0 of R2, and the address pool is an interface address pool. When GEO/0/0 and GEO/0/1 of R1 function as DHCP clients, only one interface can obtain an IP address by default.
A company purchased private lines from two operators. In order to optimize the lines, the company used the 6GP protocol to learn from two
Route entries that operate off. However, after the enterprise found that this configuration, the traffic of the port route increased greatly, and the network engineering arrangement
After investigation, it was found that the traffic of the two operators was passed to each other through the enterprise egress router. Therefore, the enterprise intends to use the routing strategy so that the traffic of the packets of different carriers is no longer passed to each other. Is the configuration in the following figure correct?
The rules of RR advertising routes violate the rules of IBGP split horizon, so it may cause loops in the AS
road. Which routing attributes does RR use to prevent loops?
LDP messages are exchanged between LSRs running the LDP protocol. LDP messages can be divided into four types according to their functions. Which of the following is not a message type of LDP?
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?
The figure shows the debugging information on an OSPF router. Which of the following is the router ID of this router?
During an attempt to log in to a NetEngine AR6120 through the console port, the network engineer finds that the password is incorrect and the login fails. If a Telnet account can be used to log in to the device and the account has the permission to change the console port password, the network engineer can log in to the device through Telnet to change the console port password.
Which of the following reasons may cause the hosts in the same--VLAN LAN to fail to communicate with each other
OSPFV2 is an IGP running on an IPv4 network; OSPFV3 is an IGPo running on an IPv6 network. The basic working mechanism of OSPFv3 is the same as that of OSPFV2, such as the election of DR and B, DR. As shown in the figure, an engineer uses 3 routers to test IPv6 services. He wants to realize the interconnection of IPv6 networks by running OSPFV3.
Pass. Which of the following statements about the election of the network DR is correct?
When configuring the DHCP Relay function on the device, the VLAN ANIF interface of the relay connection client must be bound with a DHCP server group, and the IP address of the proxy DHCP server must be configured in the bound DHCP server group.
After a fault occurs, you need to collect and back up various types of fault information in time as a reference for troubleshooting. In addition, when seeking emergency assistance from Huawei Technologies Co., Ltd.
As shown in the figure, all interfaces of the router enable DSPF. The cost value of the link is marked in the figure. R2
The LoopbackD interface is advertised in area 1, then the cost of R1 reaching 10.2/32 is?
In the multi-level RR scenario, a large number of secondary RRs will be connected to the primary RR, which may lead to BGP of the primary RR. The routing table overflows, what method can be used to reduce the risk of overflowing the routing table of the advanced RR BGP?
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?
[According to this picture, Peimen can judge?
cR3>display ipv6 routing-table protocol isis
All routers in a network run IS-IS, and all are in Area 49.0001, where the L SDB of R1 is shown in the figure
According to this, it is judged that the DIS of Level-2 is. (Please fill in the device name, such as R1)
|
DatabaseinformationforISIS (1)
Level-1Link State Database
LSPIDO Seq Num ChecksumbHoldtime Length ATT/P/OL
0001.0000.4004.00-00 0x00000008 0xb701 1186 68 0/0/0
0001.0000.2002.00-00Ox 0000008 0xb701 1186680/0/0
0001.0100.1001.00-00*0x00000050x2f9d1187 680/0/0
0001.0100.1001.01-00*0x00000001 0xa79e1110550/0/0
Level-2 Link State Database
LSPIDAN> Seq Num Checksum., Holdtime Length ATT/P/OL
0001.00002002.00-00 0000000080xb7011188 6S0/0/0
0001.0100.1001.00-00* 0x00000060x2d9e 1187 680/0/0
0001.0100.1001.01-00* 0x00000005OxdObO 1191 660/0/0
0100.0000.3003.00-00 000000005 0xfe53 1185 560/0/0
0
Which of the following actions may affect the normal operation of the customer's network?
On the OSPFv3 network shown in the figure, OSPFv3 is enabled on the interfaces connecting R1, R2, and R3. The router ID of each router is 10.0.X.X, where X is the number of the router. If you check detailed information about an LSA on R3, the command output shows that the LSA is generated by R2 and describes the IPv6 prefix address associated with the Router-LSA.
About the site in the BGPIMPLS IP VPN network architecture. Which of the following descriptions is correct?
On a stable network that requires fast route convergence, you can change the value of the interval at which OSPF LSAs are updated to 0 so that topology or route changes can be immediately advertised on the network through LSAs, which speeds up route convergence.
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?
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?
In an MPLS VPN network, data packets are forwarded when they enter the public network. will be encapsulated with two layers of MPLS labels
sign. Which of the following options describes the processing of the packet correctly:
To ensure security, authentication can be configured in the OSPFV3 process area view.
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.
There is a concept of forwarding equivalence class (FEC-Fowarding Equivalence Class) in MPLS, so FEC does not
Can the allocation be made based on which of the following criteria?
A campus has deployed IPv6 for service testing. In the early stage of deployment, engineers wanted to achieve network interoperability through IPv6 static routes. When creating an IPv6 static route. You can specify both the outbound interface and the next hop, or only the outbound interface or only the next hop.
A router's Network LSA is shown in the figure. Which of the following statements is correct?
Area: 0.0.0.0
Type: Network
Lsid: 10.0.122
Advrtr: 10.0.12.2
Ls age: 824
Len: 32
Options : E
\seq#:80000002
1chksum : 0x8970
INet mask: 255.255.255.0
IPriority : Low
IAttached Router 10.0.12.2
.Attached Router 10.0.12.1
Which of the following community attributes can ensure that the propagation scope of BGP routing entries is only within the AS?
In the absence of a header, the Domain ID of each OSPF process running on the router and the process ID of the process
Be consistent and can be modified under the process through the domain-id command
On the 05PFv3 network shown in the figure, each interface of R1 and R2 has two IPv6 addresses. Although the IPv6 address prefixes of R1 and R2 are different, they can still be used to establish an OSPFv3 neighbor relationship. If R2 is the DR, the Intra-Area-Prefix-LSA generated by R2 contains four prefixes.
