100% Pass Guaranteed Free H12-831-ENU Exam Dumps Nov 09, 2023 [Q49-Q72] : Actual Test Materials : http://blog.actualtests4sure.com

NO.49 An engineer uses two routers to test IPv6. He wants to realize the interconnection of IPv6 networks by running OSPFv3. About the OSPFv3 related configuration that needs to be done on R1
, which are correct? (Multiple choice)

[R1-ospfv3-1-area-0.0.0.0] network 2001

[R1-GigabitE thernet0/0/1] ospfv3 1 area 0

[R1] router id 10.1.1.1

[R1-ospfv3-1] router-id 10.1.1.1

NO.50 R1 contains the configuration shown in the figure, which of the following statement about IS-IS process 1 is correct?

The device type of R1 cannot be determined

The device type of R1 is Level-1-2

The device type of R1 is Leve-2

The device type of R1 is Level-1

NO.51 Which of the following aspects should be considered in the cutover risk assessment? (Multiple choice)

Loss from risk

Scope of Risk Impact

Timing of Risk Impact

Location of key risk points

NO.52 The IS-IS neighbor relationship between R3 and R1 is not established. According to the information in this figure, what is the possible reason?

The IIH authentication of R3 and R1 failed

The System IDs of R3 and R1 are duplicated

The lS-Level of R3 and R1 do not match

The circuit-type of the interconnection interface of R3 and R1 does not match

NO.53 Among the following options, which of the following descriptions is wrong?

LSP established by statically assigning labels can also be dynamically adjusted according to network topology changes without administrator intervention

The principle to be followed when manually assigning labels is: the value of the outgoing label of the upstream node is the value of the incoming label of the downstream node

LSP are classified into static LSP and dynamic LSP. Static LSP are manually configured by administrators, and dynamic LSP are dynamically established using label protocols.

Dynamic LSPs are dynamically established through label distribution protocols such as MP-BGP

NO.54 Which of the following commands can be used to view information about BGP VPNV4 routes and BGP private network routes on PE?

display bgp routing-table address-family vpnv4

display bgp vpnv4 routing-table

display bgp routing-table ipv4-family vpnv4

display vpnv4 bgp routing-table

NO.55 As shown in the figure, in a medium-sized network, in order to improve the reliability of RR, BGP generally deploys double R.

When deploying dual EE, the Cluster IDs of the two RRs are generally set to be the same. What is the reason for this?

Prevent RR from receiving too many routes and causing insufficient memory

Prevent suboptimal

Prevent loops

Prevent the client from receiving too many routes and causing insufficient memory

NO.56 Which of the following description of the configuration on this switch is correct? (Multiple choice)

Both DHCP server and DHCP relay must be configured with DHCP enabled globally

Specify the DHCP server group as dhcp group 1 for the VLAN100 interface

First you need to create a DHCP server group and add a DHCP server to the server group

The VLANIF100 interface will send the received DHCP packets to the external DHCP Server through the relay

NO.57 The routing policy tools that BGP can use mainly include Filter-policy and Route-policy. Filter-policy can only filter routes, and Route-policy can only modify routes.

True

False

NO.58 What are the reasons why DHCP faces many security threats? (Multiple choice)

The man-in-the-middle exploits the fake IP-to-MAC mapping relationship to deceive both the DHCP client and the server at the same time

DHCP Server cannot distinguish what kind of CHADDR is super legal and what kind of CHADDR is illegal

DHCP dynamic allocation of IP addresses has a long response time

Because the DHCP discovery message (DHCPDISCOVER) is sent in the form of broadcast

NO.59 What characteristics must a high-risk operating program have? (Multiple choice)

have verification

Strong operability

to be precise

can be returned

NO.60 As shown in the figure, the entire network of a company uses OSPF to open up the network. However, RouterS and RouterE cannot establish an OSPF neighbor relationship. When network administrators detect OSPF faults, they can run the display ospf ( ) 1000 interface GE0/0/1 command on RouterS to obtain information about the errors. Users can perform OSPF fault diagnosis based on the information. (Please use English lowercase letters to complete the command, and the command cannot be abbreviated)

error

NO.61 Which of the following statements about MUX VLANs are true? (Multiple choice)

Each Group VLAN must be bound to a Principal VLAN

Separate VLAN can communicate with all VLANs in MUX VLAN

Each Separate VLAN must be bound to a Principal VLAN

The Principal VLAN can communicate with all VLANs in the MUX VLAI

NO.62 What technologies can Agile Controller implement for admission control? (Multiple choice)

MAC authentication

Portalii Certification

802.1X Authentication

SACG Certification

NO.63 The QoS technique commonly used for congestion avoidance is?

GTS

Car

WRED

NO.64 As shown in the figure, OSPF is enabled on all interfaces of the router. The IP address marked in the figure is the IP address of the loopback0 interface of the device. Loopback0 of R1 and R2 is advertised in area 1, Loopback0 of R4 is advertised in area 0, and Loopback0 of R3 and R5 is advertised in area 2. Which of the following IP addresses can ping each other? (Multiple choice)

10.0.2.2 and 10.0.3.3 (Type 3 reception is not counted in non-backbone areas)

10.0.3.3 and 10.0.5.5 (same as region 1)

10.0.4.4 and 10.0.2.2 (normal calculation Type 3)

10.0.2.2 and 10.0.5.5 (Type 3 reception is not counted in non-backbone areas)

NO.65 Assuming that the neighbor relationship between BGP routers has been established successfully, the configuration on R1 is as shown in the figure.

Which router can the routing entry 10.10.10.0/24 published by 1 be delivered to the farthest?

NO.66 Which of the following statements about OSPF’s Router LSA and Network LSA is wrong? (Multiple choice)

A router running OSPF must generate a Network LSA

Routers running OSPF must generate Router LSAs

There must be both Router LSA and Network LSA in an OSPF network

Network LSA carries both topology and routing information

NO.67 The Tos field is used to mark the QOS in the IP packet, and the first 6 bits of the Tos field are used to mark the DSCP.

True

False

NO.68 What are the working modes of firewall interfaces? (Multiple choice)

Exchange Mode

Transparent Mode

Transmission Mode

Routing Mode

NO.69 BGP/MPLS IP VPN can only use LDP to build a public network channel.

TRUE

FALSE

NO.70 Which of the following BGP routing attributes cannot control BGP routing?

MED

AS Path

Community

Originator ID

NO.71 What is the command to adjust the IS-IS interface link cost value?

isis cost

isis timer hello

isis circuit-level

isis circuit-type

NO.72 The Router LSA of a certain router is shown in the figure. Which of the following statements is wrong?

The Router ID of this router is 10.0.12.1

This router is the DR

This router has established an adjacency relationship

This router supports external route import