單項選擇題Where are MPLS point-to-multipoint traffic engineering packets replicated?()

A.head-end router
B.branch-point router
C.midpoint router
D.leaf-point router
E.tail-end router


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1.多項選擇題Which three statements about BGP confederation and route reflectors are true? ()

A.Clusters are used in confederation schemes to avoid loops.
B.BGP network can have a confederation within a route reflector area.
C.An internal BGP network cannot have a route reflector within a confederation.
D.An internal BGP network can have a route reflector within a confederation.
E.Clusters are used in route reflector schemes to avoid loops.
F.BGP network cannot have a confederation within a route reflector area.

2.多項選擇題Which two statements about NTP version 4 are true?()

A.It supports fast synchronization at starting and before network failures
B.It supports automatic server discovery
C.It uses a fixed-point arithmetion
D.It supports the "nanokernel" kernel implementation
E.It does not support Public-Key Cryptography

3.多項選擇題Process-level redundancy is implemented by a system manager process that creates the standby process.What two functions are provided by the system-level process called Qnet Symlink Manager (QSM)?()

A.backing up the information for the broken connections
B.provides common information for connecting processes and services
C.detection of a failed connection
D.provides an abstract name for a process or service
E.distribution of symbolic link information

5.單項選擇題What are the default values for GRE tunnel keeplive time and number of retries?()

A.5 seconds and 3 retries
B.10 seconds and 5 retries
C.10 seconds and 3 retries
D.20 seconds and 5 retries
E.5 seconds and 5 retries

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