H12-831_V1.0 Practice Exam Questions and Answers

A.  

Default routes exist in the routing tables of R1 and R2.

B.  

Both R1 and R2 generate Network-LSAs.

C.  

Both R1 and R2 generate Inter-Area-Prefix-LSAs.

D.  

Both R1 and R2 generate Intra-Area-Prefix-LSAs.

A.  

TRUE

B.  

FALSE

A.  

display interface brief

B.  

display clock

C.  

display alarm

D.  

display current-configuration

A.  

exit currentMonitorinterface redesignSSHLog in to the device to open a new oneMonitorinterface

B.  

Open Notepad and enterundo debugging a 11,Copy the command line and paste it intoMonitorinterface

C.  

Open Notepad$SLIAundo terminal monitor,Copy the command line and paste it intoMonitorinterface

D.  

open notepad inputundo terminal debugging,Copy the command line and paste it intoMonitorinterface

A.  

enable globalDHCP SnoopingFunction

B.  

enable globalDHCPFunction

C.  

Configure Interface Trust Status

D.  

enable interface orVLANofDHCP SnoopingFunction

A.  

NSF must rely on neighbor routers to complete

B.  

Both NSR and NSP require neighbor routers to complete

C.  

NSR must rely on neighbor routers to complete

A.  

PThe device only needs to have the basicM PLSForwarding capability, not maintainedVPNRelated Information

B.  

between sites viaVPNMutual visits, a site can only belong to1indivualVPN

C.  

In general,CEThe device does not perceiveVPNexistence, andCEDevice does not require supportMPLS,MP-BGP

Wait

D.  

BGP/MPLS IP VPNnetwork architecture byCE(CustomerEdge).PE(ProviderEdge)and P( Provider)consists of three parts, includingPEandPis operator equipment,CEYesBGP/MPLS IPVPNUser settings prepare

A.  

existCEIn the case of multi-homing, enableBGP ASThe number substitution function may cause routing loops that can be passed throughBGP SoDpreventVPNIntra-site routing loops

B.  

whenPEandCEbetweenBGPWhen exchanging routing information, if twoVPNThe autonomous system the site is in uses the same privateASnumber, can be passed throughASThe number replacement function is to use any specifiedASreplace the received private network route with theASnumber to preventASRoutes are discarded due to duplicate numbers

C.  

existHub&Spokescene, whenHub-CEandHub-PEuseIGPTimeSpoke-PEandSpake-CEcannot makeEBGP

D.  

whenPEandCEbetweenBGPWhen exchanging routing information, you do not need toPEPerform private network route import on theBGPoperation

A.  

MPLS VPNThe outer label is made byLDPprotocol or statically assigned, the inner label is assigned by the correct end

MP-BGPassigned by neighbors

B.  

MPLS VPNEThe outer layer label is called the private network label, and the inner layer label is called the public network label

C.  

By default, the outer label is singled out before the packet is forwarded to the last hop device

D.  

Layer labels are used inPEThe device sends the packet correctly to the correspondingVPNmiddle

A.  

Open

B.  

Keepalive

C.  

Update

D.  

Notification