多項選擇題You have a trunk link operating between two switches and you’re experiencing problems withframes leaking between the two VLANs. Each switch has identical modules， software revisionsand VLAN configuration information. Spanning tree protocol is disabled on all VLANs. What isprobably causing this problem？（）

A.The link is using IEEE 802.1Q protocol
B.The link is using IEEE 802.1E protocol
C.Spanning tree is disabled
D.Not enough information to determine
E.The native VLAN information is identical at each end of the link
F.The native VLAN information is different at each end of the link


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2.多項選擇題In the network， VLAN Trunking Protocol （VTP） is running with a domain name of R1. VLANs 1， 2，3， 4， 5， 10， 20 are active on the network. Suddenly the whole network goes down. No traffic isbeing passed on VLANs 2， 3， 4， 5， 10， 20. However， traffic passes on VLAN 1 and indicates allswitches are operational. Right before the network problem occurred； a switch named SW13 wastaken out of the lab and added to the network. What three configuration issues on SW13 could becausing the network outage？（）

A.SW13 has a higher VTP configuration revision than the current VTP revision
B.SW13 is configured as a VTP server with a different domain name
C.SW13 is configured as a VTP server with the domain name R1
D.SW13 has a lower VTP configuration revision than the current VTP revision
E.SW13 is not configured to participate in VTP
F.SW13 is configured with only VLAN1

3.多項選擇題

On the basis of the following exhibit， can you tell me why VLAN updates from switch CK-P2S1 arenot applied to switch CK-P1S1？（）

A.The MD5 digests do not match
B.Switch CK-P1S1 is in transparent mode
C.The passwords do not match
D.The VTP domains are different

4.多項選擇題A Company is using 6to4 tunnels in their IPv6 network. Which two statements are true about thesetunnels？（）

A.In a 6to4 tunnel， the first two bytes of the IPv6 address will be 0x2002 and the next four byteswill be the hexadecimal equivalent of the IPv4 address
B.In a 6to4 tunnel， the IPv4 address 192.168.99.1 would be converted to the2002：1315：4463：1：：/64 IPv6 address
C.In a 6to4 tunnel， the IPv4 address 192.168.99.1 would be converted to the 2002：c0a8：6301：：/48IPv6 address
D.In a 6to4 tunnel， the first two bytes of the IPv6 address will be locally derived and the next twobytes will be the hexadecimal equivalent of the IPv4 address
E.In a 6to4 tunnel， the IPv4 address 192.168.99.1 would be converted to the 2002：c0a8：6301：：/16IPv6 address

5.多項選擇題A company is using 6to4 tunneling within their IPv6 network. Which two statements about this kindof tunneling are accurate？（）

A.6to4 is a manual tunnel method
B.Prepending a reserved IPv6 code to the hexadecimal representation of 192.168.0.1 facilitates6to4 tunneling
C.Each 6to4 site receives a /48 prefix in a 6to4 tunnel
D.2002：：/48 is the address range specifically assigned to 6to4
E.Prepending 0x2002 with the IPv4 address creates an IPv6 address that is used in 6to4tunneling

6.單項選擇題Company network is implemting IPv6 into their existing IPv4 netwrok. Which statement is trueabout incorporating IPv6 into an already existing IPv4 network？（）

A.Only OSPF version 3 can be utilized for routing IPv4 and IPv6
B.IPv4 and IPv6 networks can be routed simultaneously
C.IPv6 can be routed using the same routing protocol versions as IPv4
D.A router routing for IPv6 and IPv4 must convert IPv4 packets to IPv6 packets to route them
E.None of the other alternatives apply

7.多項選擇題To enable BGP tunneling over the IPv4 backbone， the IPv4 address 192.168.30.1 is convertedinto a valid IPv6 address. Which three IPv6 addresses are acceptable formats for the IPv4address？ （）

A.192.168.30.1：0：0：0：0：0：0
B.0：0：0：0：0：0：192.168.30.1
C.：：192.168.30.1
D.C0A8：1E01：：
E.192.168.30.1：：
F.：：C0A8：1E01

8.單項選擇題The command "clear ipv6 ospf process" was issued on a router. What does this commandaccomplish？（）

A.The route table is cleared. Then the OSPF neighbors are reformed
B.The OSPF adjacencies are cleared and initiated again
C.The OSPF database is repopulated and then the shortest path first （SPF） algorithm isperformed.
D.The shortest path first （SPF） algorithm is performed on the LSA database
E.None of the other alternatives apply

9.多項選擇題

Refer to the exhibit. What two statements are true？（）

A.The IP address of the backup designated router （BDR） is FE80：：205：5FFF：FED3：5808
B.This is the designated router （DR） on the FastEthernet 0/0 link
C.Interface FastEthernet 0/0 was configured with the ipv6 ospf 1 area 1 command
D.OSPF version 2 has been enabled to support IPv6
E.The output was generated by the show ip interface command

10.單項選擇題

Refer to the output. What IOS command produces this output？（）

A.show ip ospf
B.show ip ospf interface
C.show ipv6 ospf interface
D.show ipv6 ospf

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