單項選擇題Running both IPv4 and IPv6 on a router simultaneously is known as what？（）

A.4to6 routing
B.6to4 routing
C.binary routing
D.dual-stack routing
E.NextGen routing


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1.單項選擇題What is the most likely reason for the dispartly between the actual network numbers at the branches and the routes in the routing table on Gateway-Router?（）

A.Branch-Router2 is configured to send both RIPv1 and RIPv2 updates.
B.Gateway-Router is configured to only receive RIPv2 updates.
C.Gateway-router is configured to receive only RIPv1 updates.
D.Branch-Router1 is configured to only send RIPv1 updates

2.單項選擇題Select the action that results from executing these commands. Switch（config-if）# switchport port-security. Switch（config-if）# switchport port-security mac-address sticky（）

A.A dynamically learned MAC address is saved in the startup-configuration file.
B.A dynamically learned MAC address is saved in the running-configuration file.
C.A dynamically learned MAC address is saved in the VLAN database.
D.Statically configured MAC addresses are saved in the startup-configuration file if frames from that address are received.
E.Statically configured MAC addresses are saved in the running-configuration file if frames from that address are received.

3.單項選擇題which address range efficiently summarizes the routing table of the addresses for router main?（）

A.172.16.0.0/18
B.172.16.0.0/16
C.172.16.0.0/20
D.172.16.0.0/21

4.多項選擇題Which two benefits are provided by creating VLANs？ （）

A.added security
B.dedicated bandwidth
C.provides segmentation
D.allows switches to route traffic between subinterfaces
E.contains collisions

5.多項選擇題

Refer to the exhibit.Assume that the routing protocol referenced in each choice below is configured with its default settings and the given routing protocol is running on all the routers. Which two conditional statements accurately state the path that will be chosen between networks 10.1.0.0 and 10.3.2.0 for the routing protocol mentioned？ （）

A.If OSPF is the routing protocol， the path will be from R1 to R3 to R4 to R5.
B.If OSPF is the routing protocol， the path will be from R1 to R2 to R5.
C.If OSPF is the routing protocol， the path will be from R1 to R5.
D.If RIPv2 is the routing protocol， the path will be from R1 to R3 to R4 to R5.
E.If RIPv2 is the routing protocol， the path will be from R1 to R5.