H12-891_V1.0 Exam Dumps - HCIE-Datacom V1.0

Session layer

Data link layer

Transmission layer

Presentation Layer

Physical Layer

Application Layer

TRUE

FALSE

this router will put the newly received LSP into the LSDB

In the case of a broadcast network, DIS will include summary information for this LSP in the next CSNP message.

This router ignores LSPs received from neighbors

If it is a point-to-point network, the router will send PSNP

Finger,DHCP Server,NetBios Name Server,POP3,TelnetB

LDAP,SNMP,TFTP,POP3,Telnet

HTTPS,SNMP,POP3,DNS ,Telnet

HiPS,BGP, NetBios Name Server ,POP3,TelnetE. BGP,POP3,SNMP,TFTP,Teinet

A. 30M

15M

90M

25M

RD routers use FF02: :6

The DR router uses FF08::6

All OSPF routers use FF02::5

If the MAC address information of PC2 can be queried on PC1, the neighbor relationship may be Stale

If pc2's MAC address information can be queried on PC1, the neighbor relationship may be Probe

There are five possible neighbor states between PC1 and PC2: Incomplete, Reachable, and Stale , Delay, Probe

If the MAC address information of PC2 can be queried on PC1, the neighbor relationship must be Reachable

TRUE

FALSE

7 ? LSA

1 ? LSA ? 2 ? LSA

I LSA,2 LSA 5 LSA

3 ? LSA ? 4 ? LSA

1 LSA,2 LSA 3 LSA

300 4200

1234 1400

3100

100

True

False

Trap,Get ? Set

Get, Set ?Getnext

Get,Set,Getnext ? GetBulk

Get,Set ? GetBulk

? Trap

There is no Type3 LsA flooding within Areal

There is no Type3 LSA flooding in Area2

There is Type5 LSA flooding within Areal

Area2 contains Type5 LSA generic adverb

Type5 routes carry Layer 3 VNI.

Type5 routing carries both Layer 2 VWI and Layer 3 VNI

The IP Prefix field can carry both host and network segment addresses.

Type5 is an IP prefix route.

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

iBGP-Multi-hop is not configured

Authentication is unsuccessful

IGP routing is not passable

BGP protocol version inconsistencies

In order to support the processing and calculation of IPV6 routes, IS-IS has added TLV232, 236

By default, IS-IS has the multi-topology feature turned on

IS-IS works at the data link layer and only needs to add a new TLV to support IPv6

To support the processing and computation of IPv6 routes, IS-IS has added NLPID to the 129TLV

Flags

Protocol

Time to Live

Ldentification

In the routing table, route table entries identified by the "OSPF" identifier can only be learned through LSAs of Type 3

In the routing table, the routing table entries identified by the "OSPF" identifier can only pass Class 1 LSA

In the routing table, the routing table entries identified by the "OSPF" identifier can be learned through the 1/2/3/5 LSA

In the routing table, the routing table entry identified with the "O_ASE" identifier can only be learned by routing introduction

receives neighbor routing information

Introduce static routes

BGP routing for other AS is introduced

Introduced Direct Route

True

False

SNMPv1 B. SNMPv2C

SNMPV3

All versions are available to implement

TRUE

FALSE

sites can be accessed each other through vPNs, and a site can only belong to a VPN

P devices only need basic MPLS forwarding capabilities and do not maintain VPN-related information

BGP/MPLSIPVPN network architecture consists of CE (Customer Edge), PE (Provider Edge) and P (Provider), of which PE and P Is a carrier device, CE is BGP/MPLSIPVPN with

Household equipment

Under normal circumstances, CE devices are not aware of the presence of VPN, and CE devices do not need to support MPLS MP-BGP, etc

TRUE

FALSE

What is built between the multicast source and the RP is the SPT tree

RP and the receiver is built between the RPT tree

Built between the RPT tree

RP and the swap is the SPT tree

MED default value is 100

MED can only be passed within this AS

MED is an optional non-transitional attribute

MED The default value is 0

The first recipient whose response time time expires sends the Report message, the other receivers do not.

All recipients will respond to Report messages only if ICMPV2 is running.

All recipients will respond to the Report message only if IGMPvl is running.

All recipients will respond to the Report message

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

True

False

True

False

64

32

16

D,128

Community -filter

IP-prefix

Route policy

AS-Path- filter

The TTL and source IP address of the packet

Source A address and the Layer 2 source address

Source IP address and specific protocol (such as FTP, HTTP, etc.)

Service type header and message length

Alternative port, Backup port

Backup port, root port

Root port, Designated port

Backup port, Alternative port

On the interface, RSTP does not age BPDU

After more than 6 seconds

After Ma ge times out

After Hello time times out

after the Forward Delay timeout

TRUE

FALSE

Drop the route directly.

No more advertising to other BGP routers.

Advertise only to IBGP neighbors.

The route is advertised normally, but the route is not used to forward data.

cir 10000 pir 12000

cir 10o00 cbs 12000 pbd 12000

cir 8000 pir 12000

cir 10000 cbs 10000 pbs 12000

Application Protocol

Class of Service

Destination Address

Fragment offset

SNTP server address

IPv6 address/prefix

Gateway address

DNS server address

There is no change in the option field of the Hello message

Remove the Authentication, Auth Type fields

Hello messages no longer contain address information, carrying Interface lD

The OSPF version number changed from 2 to 3

The TTL field in the label has the effect of preventing loops.

IBGP PEes generally use the Loopback interface address to establish a stable BGP neighbor relationship

BGP So0, which is used to prevent routes issued from a VPN site from passing through the MPLS backbone and back to that site. So0 is an extended group attribute that MP-BGP automatically generates.

The routing exchange between D. PE-CE can be static routing, OSPF multi-instance, IS-IS multi-instance, EBGP

A Filters routes received from BGP neighbors based on the AS PATH attribute carried by the route, such as the command peer X.x.x.x as path-filter import

The apply clause in Route policy

Filter routes sent to BGP neighbors based on the AS PATH attribute that the route carries. For example, the command peer x.x.x.x as path-filter export

The if-match clause in Route-policy

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.

256K bytes

48128 bytes

32K bytes

80128 bytes

Site local Multicast

Anycast Address

Global Address of the link

Unique Local Add

Link Local Address

The hello packets sent at level-1 and Leve1-2 are both 5s

The hello packets sent at level-1 are sent at 5s interval

The level-2 hello packet send interval is 5s

The CSNP packet sending interval for this interface Level-2 is 5S

WRED can set different drop thresholds and packet loss rates for packets of different priority

When the flow exceeds the minimum threshold, WRED begins to discard all inlet flow (tail drop)

Avoid global synchronization by selectively dropping multiple TCP streams

Low-bandwidth traffic is easier to drop than high-bandwidth traffic

10,200,3

400,300,200,100

100,200,300,400

300,200,100

8023z

8023ab

8023ad

8023af

Users who connect to the same MCE but are not part of a VPN instance cannot access each other

The MCE vs. PE direction must have multiple physical links to achieve isolation between different VPN instances

MCE-enabled devices can access multiple VPI instances in BGP/RPLS IPVPN applications, reducing user network equipment investment

On the MCE device, you need to create their own routing tables for different VPNs and bind to the corresponding interface

The IS-IS protocol is a link-state protocol that runs between AS

The IS-IS protocol supports CLNP networks

Messages for the IS-IS protocol are encapsulated directly by the data link layer

The IS-IS protocol supports IP network ad

VBDIF

VLANIF

BD

VTEP

Both packets need to be confirmed to the terminal router after being sent, otherwise they need to be retransmitted

Once the adjacency relationship is established, the CSRP packet and the D message will stop sending

The two packets do not need to be confirmed to the router after they are sent the master-slave relationship in the DD message interaction of

OSPF is not identity bound to dr/BDR; the CSN message is generated only by DIS

Router HW1 strips off the label and looks for the FIB using the P destination address

Router HW1 uses LDP to create an LSP and creates a new path in LFIB for the label carried in the message

Router HW1 drops the message

Router HW1 will forward the message with the default label

IP-prefix

AS-path-filter

Regular-expression

ACL

SSM multicast address, the multicast address segment is valid for the whole network

Any legitimate multicast traffic and multicast application can adopt this address C. Locally managed multicast address, which is valid only locally

Link-local multicast address, where traffic that uses that address includes network control messages and that address range is only the multicast address segment used by the E. routing protocol

TRUE

FALSE

::1/128

FE80:/10

FE80::/10

2000:;/3

The mask length of the group range for the C-RP service that matches the group address that the user joined

C-RP priority

The IP address of the C. C-RP interface Number of

C-RP interface

MAC address

Health status

Stack priority

Stack ID

OSPF establishes available adjacencies through this interface

OSPF does not add routes learned from the interface to the local routing table

OSPF does not establish any neighboring relationships through this interface D. OSPF receives routing updates from neighbors

The rate mismatch between the workstation and the switch

Interface mismatched to an 8021Qtrunk interface

The line between the workstation and the switch has been completely damaged

The operating mode between the workstation and the switch does not match

The network interface card on the workstation is damaged

The interconnect POS ports of R1 and R2 learn the 24-bit subnet route of each other's direct connection ports through IPCP

The interconnect POS ports of R1 and R2 learn the 32-bit host route for each other's direct connections through IPCP

The interconnect POS port of RI and R2, through LCP learns the MAC address of the opposite termination , does not need to use ARP to request the MAC address

The data packets of the interconnect POS ports of R1 and R2 do not need to encapsulate ethernet headers and do not need to use ARP to request MAC addresses

TRUE

FALSE

network 19072270 mask 255255255224

network 1907227000031

network 19072270255255255224

network 19072270

network 19072270255255255240

True

False

TRUE

FALSE

Vpn configure 1000:1000 both evpn

EVPN configures 1000:1000 both

Configure 1000:1000 export under EVPN

Configure 10:10 both under VPN.

Connection authentication can realize the authentication of the hello messages of Leve-1 and Leve-2

After configuring the connection authentication, the IIH issued by the router must carry the authentication TLV

After configuring zone authentication, the router issues an IIH, SNP, LSP—strap-to-tape authentication TLV

The two routers are configured for area authentication and interface authentication, and the passwords are the same, so the two can establish an isocopied relationship

The wrong BGP packet was received.

The mandatory attribute in the route update packet is missing.

Open message negotiation failed.

After the BGP connection is established, the keepalive message is not received within the negotiated holdtime time.

10,200,3

400,300,200,100

100, 200,300, 400

300, 200,100

The router queries a specific group

The router maintains a timeout timer for each group membership, refreshes the timer if the receiver host is received, and deletes the group membership if the timer times out

The router periodically sends a Query message, and after the receiver host receives the Query message, it reports a Report message

As soon as the leave message is received, the router immediately deletes the group membership

True

False

Multicast

Known unicast

Broadcast

Unknown unicast

EBGP Multi-hop is not configured

The firewall did not release IP protocol number 89

Firewalls that do not have an open UDP port number of 179

BGP neighbors must form a Layer 2 adjacency

Modify the Cost value of the IS-IS interface

Modify the send interval for the IlH of the IS-IS interface

Modify the Level of the IS-IS interface

Modify the IP address of the IS-IS interface

Version

Flow Label

Next Header

Traffic Class

In addition to the 3 port states, RSTP vice adds 2 new port roles

Non-root switches running RSTP send configuration BPDUs at intervals specified by Hello Timer, a behavior that is entirely autonomous for each device

RSTP port state specification is divided according to whether the port forwards user traffic and learns the MAC address, reducing the original 5 port states to 3

If a port does not receive a configuration BPDU sent by the upstream device for 4 consecutive Hello Time, the device considers the negotiation with this neighbor to fail

Improved network equipment and link utilization

It can effectively reduce network power consumption

Business disruption time is greatly reduced

Simplifies network management and reduces the complexity of network deployment planning

Policy Routing can set the next hop IP address

Policy Routing cannot be set in the next statement DSCP

Policy Routing cannot be used to set IP precedence

Policy-based routing can be used to match message lengths

The length of the MPLS tag is 20 to 20 for packet forwarding.

The tag space range of dynamic signaling protocols such as LDP, M P-BGP is 16 to 1023

When using the TTL processing method of Pipe mode, the IP packet transmits the TTL of the IP packet over the IPLS network. The value is only minus 1 for the MPLS in and out nodes.

MPLS supports multi-layer label nesting, and the S bit value of the innermost label is 1.

IBGP routes can be introduced using the impot-route BGP command

AS-path-fiter is for AS-path, which affects the routing of paths.

OSPF, ISIS, and BGP can issue default routes.

In Node 10, if-match community-fiter1 and f-match as-pah-fiter1 are "and the relationship

Synchronization is turned off

The B. BGP neighbor relationship is Down

Router R1 does not enable BGP Multi-hop

Routing is not optimal

TRUE

FALSE