Actual H12-891_V1.0 Exam Recently Updated Questions with Free Demo [Q324-Q346] : Free Exams Dumps Materials : http://exams.dumpsmaterials.com

QUESTION 324
When configuring ISIS zone authentication, which ISIS message will carry the authentication letter? ( Single choice questions).

ISIS ?Level-1 ?SNP ?LSP?

ISIS ?Level-2 ?SNP ?LSP?

Hello message of ISIS’s Level-1.

Hello message of ISIS’s Level-2

QUESTION 325
BGP routing policies can control the publication and acceptance of routes

TRUE

FLASE

QUESTION 326
What’s wrong about vrrp timers is ?

MASTER DOWN = (3*ADVER_ INTERVAL) + Skew_ time

Skew Time= (255-Priority)/255

By default, the time period for VRRP advertisement messages is 2 seconds

By default, the VRRP preemption delay is I seconds

QUESTION 327
Regarding the sliding window of TCP, what are the following descriptions that are enough to be wrong? ( Multiple choice question)

The sender declares the initial window size

The sender does not need to transmit messages of full window size

The TCP sliding window allows multiple packets to be sent before an acknowledgment is received

After the retransmission timer times out, the sender has not received an acknowledgment and will retransmit unacknowledged data

The receiver needs to acknowledge the sender’s packet

Sliding window size can only be increased or remain unchanged

QUESTION 328
The RSTP protocol provides a variety of protection functions, such as when the edge port is configured as a protection state, the edge port receives the BPDU packet processing method;

Directly discard the BPDU packet

Close the port

After parsing the BPDU message, the relevant information is obtained

Forward BPDU packets as required

QUESTION 329
Level-1-2IS transmits Level-2LSP to the Level-1 area if the AT location 1 in Level-2LSP is delivered It means that the Level-1lS in the area can be accessed to the outer area through Level-1-2IlS

True

False

QUESTION 330
What messages does an NMS (Network Management Station) running SNMPV1 send to the agent?

Trap,Get ? Set

Get, Set ?Getnext

Get,Set,Getnext ? GetBulk

Get,Set ? GetBulk

? Trap

QUESTION 331
The duplicate address detection feature for NDP in the following description is incorrect?

IPv6 unicast address is called a tentative address after it is assigned to an interface and before it is detected by duplicate addresses

Duplicate address detection is implemented via RS and RA messages

IPv6 duplicate address detection technology is similar to free ARP in IPv4

The interface needs to perform duplicate address detection before enabling any of the unicast IPv6 addresses

QUESTION 332
The following about the Router-LSA of OSPFv3 is correct?( Single choice questions).

The router-LSA data area contains the Link-Local address

The router-LSA data area contains the Interface ID of the neighbor on this side

Similar to OSPFv2, the Option field exists in the header of LSA, not in the data area of Router-LSA

When LS type= Ox0001 in the head of LSA, the data area representing LSA is Router-LSA

QUESTION 333
Regarding the description of the hello message in the PIM-SM message, the error is ?

Hello messages are sent to multicast address 224005

Elect dr in multiple router segments with hello messages

Routers periodically use hello messages to stay in touch

In a PIM-SM network, a newly started multicast router needs to use hello messages to discover neighbors and maintain neighbor relationships

QUESTION 334
When there are multiple redundant links in an IS-IS network, multiple equivalent routes may occur. Regarding equivalent routing within an IS-IS network, which of the following descriptions is wrong?

When the number of equivalent routes present in the networking is greater than the number configured by the command, and these routes have the same priority, the next hop device System IlD large routes are preferred for load sharing

After you configure the equivalent routing priority, when the IS-S device forwards traffic to the destination segment, it will not use load sharing, but forward the traffic to the next hop with the highest priority

For each of the equivalent routes, you can assign a priority, with the highest priority routes preferred and the rest as backup routes

If load sharing is configured, traffic is evenly distributed across each link

QUESTION 335
The following statement about static VXLAN tunnel configuration is correct?

A BD needs to create an NVE country, and when there are multiple BDs, multiple NVE interfaces must be created

An NVE interface can be associated with multiple VNls, so you can create only one NVE interface when there are multiple BDs

For a VXLAN tunnel, you need to create a corresponding NVE interface, in which you explicitly specify the source IP address and the destination IP address , so there are multiple VXLAN tunnels on the VTEP that must be vE interfaces The destination address of the VXLAN tunnel is specified in the

NVE interface, and multiple VXLAN tunnels can create only one NVE interface

QUESTION 336
All interfaces of the router have OSPF enabled, the Cost value of the link is identified in the figure, and the Loopback0 socket for R2 is advertised in area 1 , then Rl reaches 10022/32 with a Cost value of ?

150

200

100

QUESTION 337
What is the correct description of the scene shown in the following figure?

R1 simultaneously exists level-1 and Level-2 LSDB

R1 can ping the interface address of R2 loopback 0

R1 has a route to R2 loopback 010022/32

There is no neighbor relationship between R1 and R2

QUESTION 338
Regarding the Stub region and the NSSA region of the OSPF protocol , the following statement is incorrect with a single choice

Neither the Stub region nor the NSSA region allows injection of Type4 LSA

Type5 LSA injection is not allowed in the Stub region, while Type5LSA injection is allowed in the NSSA region

Type7LSA injection is not allowed in the Stub region, while Type7LSA injection is allowed in the NSSA region

Both the Stub region and the NSSA region allow injection of Type3 LSA

QUESTION 339
/R1Jospf1lRL-osp- jarea.2[RLospf-1-arca-0002]network1001310000 As shown in the configuration, the administrator configured OSPF but RI on R1 You cannot learn routes for other routing rings. Then the possible cause is the question).

This router does not have an OSPF process number configured

This router is configured with a different zone ID than its neighbor router’s zone ID

This router does not have authentication features configured, but neighbor routers configure authentication features

The declared network address of this router does not match the interface mask

QUESTION 340
BGP authentication can prevent illegal routers from establishing neighbors with BGP routers, BGP authentication can be divided into MD5 authentication and Keychain authentication, please ask which BGP messages will be carried below BGPKeychain authentication information?( Multiple select).

Update

Notification

Keeplive

Open

QUESTION 341
The correct description about the prefix list is:

The prefix list is used to filter P prefixes and can match both prefix numbers and prefix lengths

The prefix list is used to filter IP prefixes, and cannot match both the prefix number and the prefix length

The prefix list cannot be used for packet filtering

The prefix list can be used to filter packets

QUESTION 342
Regarding route Policy, the following description is correct as ?( Multiple selection) Multiple selection

Advanced ACLs can be applied in route-policy to filter routes

The table entry exceed::0 less-equal 128 indicates that all IPv6 routes are allowed through

If more than one node is defined in Route-policy, at least one node in each node should have a matching pattern of permit

Route-Policy can filter only the default route

QUESTION 343
As shown in the following figure, R1 and R2 establish a neighbor relationship for Level2, which is critical:
placed as follows, then the following about The route entry for R2 is correct

The 0:/64 router appears in the IP routing table

2022:/64 Routers appear in the IP routing table c.2019::/64 Routers appear in the P routing table

2021:-/64 Router will appear in the P routing table

QUESTION 344
What improvements have been made to the IGMPv2 protocol compared to IGMPv1? ( Multiple Choice)

Added maximum response time field

Added high group messages

Added specific group query message

Added a specific source group query packet

QUESTION 345
IPV6 multicast introduces the concept of multicast scope, which of the following ways is the multicast scope concept implemented? Multi-select

When the group shake source sends IP6 multicast data, the TTL value of the packet is set to limit the transmission range of the group shake

There is a special field in the IPv6 multicast address that specifies the propagation range of multicast.

Multicast scope is just a concept of spreading scope, and there is no specific technical implementation.

During network configuration, the administrator uses the configuration command at the edge of the network to limit the multicast scope.

QUESTION 346
The following description of the BGP route reflector is ?( Multiple choice questions).

Cluster_List is an optional non-staging property for ring protection within the cluster.

The route learned from the client, all non-clients and clients published to this RR.

A network of bones is divided into multiple reflection clusters, each of which configures the other RRs as non-clients, and establishes an IBGP full connection between the RRs.

The Originator_ID attribute is generated by the Route Reflector (RR) for inter-cluster ring protection.