Free H12-891_V1.0 Exam Braindumps (page: 39)

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The Serial Number field of LS is used to detect expired and duplicate LSAs. The field is a 32bt signed integer, so the small serial number is Ox8000000

  1. True
  2. False

Answer(s): B



What kind of scenario can use AS-path-filter?( Multiple select).

  1. 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
  2. The apply clause in Route policy
  3. 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
  4. The if-match clause in Route-policy

Answer(s): A,C,D



Regarding the domain-authentication-mode md5 hello command in the ISIS process, the correct explanation is ?

  1. ISIS authentication cannot be applied in IPv6 environments.
  2. This command is mainly used to make is the ISIS Hello message carry authentication information during the transmission process.
  3. All router domain authentication methods of the same routing domain are MD5, the password is hello, and lS-IS SNP and LSP will spread normally.
  4. outing domain authentication is primarily used to allow level-1 and Level-2 SNP and LSP messages to carry authentication information during delivery.

Answer(s): C



As shown in the figure, all routers run OSPF, which is correct in the following statement:

  1. Both R2 and Zone 0 generate Router LSA
  2. R2 generates Router LSA only in Zone 0
  3. R2 forwards the R1-generated Router LSA to R3
  4. R2 Forwards the R3-generated Router LSA to R1

Answer(s): A






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