單項選擇題Multi Protocol Label Switching （MPLS） is a data-carrying mechanism that belongs to the family of packet-switched networks. For an MPLS label， if the stack bit is set to1， which option is true？（）

A.The stack bit will only be used when LDP is the label distribution protocol
B.The label is the last entry in the label stack.
C.The stack bit is for Cisco implementations exclusively and will only be used when TDP is the label distribution protocol.
D.The stack bit is reserved for future use.


您可能感興趣的試卷

你可能感興趣的試題

2.單項選擇題You are configuring an 802.1Q trunk between a Layer 2 switch and a firewall. You read in the documentation that the best way to set up a trunk is to set the port as dynamic desirable. The trunk is not coming up. Which one of these options would be a valid explanation？ （）

A.The firewall does not support Cisco Discovery Protocol. You should set the switchport trunk mode ON
B.The firewall does not support Cisco Discovery Protocol. You should set the switchport trunk mode to OFF
C.The firewall does not support Cisco Discovery Protocol. You should set the switchport trunk mode asauto.
D.The firewall does not support DTP. You should set the switchport trunk mode to ON

3.多項選擇題Which two of the following are considered valid router IDs for EIGRPv6？ （）

A.0.0.0.1
B.0.255.0.1
C.2001：DB8：：1
D.2001：DB8：ABCD：FEEF：：1

5.多項選擇題Which two statements best describe spanning-tree BPDU processing for a blocking port？（）

A.BPDUs that enter a blocking port are discarded.
B.BPDUs that enter a blocking port are processed.
C.Loopguard puts an interface into a loop-inconsistent state when BPDUs stop being received on a blocking port.
D.BPDUs are only processed on forwarding ports.

最新試題

What are the "bound IP addresses" used for in LDP？（）

題型：單項選擇題

When two bridges are competing for the root bridge of an IEEE 802.1D spanning tree and both have the same bridge priority configured， which parameter determines the winner？（）

題型：單項選擇題

Which one of the following potential issues is eliminated by using split horizon？（）

題型：單項選擇題

Which router is doing LSA type 7 to type 5 translation，and why？（）

題型：單項選擇題

Choose two commands that are required to enable multicast on a router， when it is known that the receivers use a specific functionality of IGMPv3.（）

題型：多項選擇題

Two directly connected routers， R1 and R2， are both configured for OSPF graceful restart. R2 is able to switch packets in hardware， but R1 is not. If a network administrator logs on to R2 and performs a system reload， which will be the result？（）

題型：單項選擇題

f a Cisco switch is configured with VTPv1 in transparent mode， what is done with received VTP advertisements？（）

題型：單項選擇題

For the following ports， which port is on every bridge in a Spanning Tree Protocol IEEE 802.1w network except the root bridge？（）

題型：單項選擇題

Phase I and Phase II DMVPN differ in terms of which of these characteristics？（）

題型：單項選擇題

Which three statements are true about policing？ （）

題型：多項選擇題