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《物业管理条例》规定，按照国家规定的保修期和保修范围，承担物业保修责任的首要单位是（)。A．施工单

《物业管理条例》规定，按照国家规定的保修期和保修范围，承担物业保修责任的首要单位是()。

A．施工单位

B．业主大会

C．建设单位

D．物业服务企业

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第1题

Host 1 has just started up and requests a web page from web server 2. Which two statements describe steps in the process Host 1 uses to send the request to web server 2 （choose two)（）。

A.Host 1 addresses the frames to the MAC address of router R1

B.Host 1 looks in its ARP cache for the MAC address of router R1

C.Host 1 addresses the frames to the MAC address of web server 2

D.Host 1 sends the packets to router R1 to be forwarded to web server 2

E.Host 1 sends a broadcast ARP request to obtain the MAC address of webserver2

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第2题

Host 1 sends a request for a file to remote sever1. Which destination address does Host 1 place f the packet containing the request（）。

A.The Mac address of the NIC in Sever1

B.The IP address of Server 1.

C.The MAC address of the s0/0/0 interface of router R2

D.The IP address of the s0/0/0 interface of router R1

E.The IP address of the Fa0/0 interface of router R1

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第3题

Host 1 receives a file from remote server 1. Which MAC address appears as the source address in the header of the frames received by Host 1（）。

A.The MAC address of the NIC in Host 1

B.The MAC address of the NIC in server 1

C.The MAC address of the Fa0/0 interface of router R1

D.The MAC address of the s0/0/0 interface of the router R2

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第4题

If the router R1 has a packet with a destination address 192.168.1.255, what describes the operation of the network（）。

A.R1 will forward the packet out all interfaces.

B.R1 will drop this packet because this it is not a valid IP address.

C.As R1 forwards the frame containing this packet, Sw-A will add 192.168.1.255 to its MAC table.

D.R1 will encapsulate the packet in a frame with a destination MAC address of FF-FF-FF-FF-FF-FF

E.As R1 forwards the frame containing this packet, Sw-A will forward it to the device assigned the IP address of 192.168.1.255.

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第5题

Which destination addresses will be used by Host A to send data to Host C？（）

A.the IP address of Switch 1

B.the MAC address of Switch 1

C.the IP address of Host C

D.the MAC address of Host C

E.the IP address of the router‘s E0 interface

F.the MAC address of the router‘s E0 interface

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第6题

R1 forwards a packet from Host 1 to remote Server 1. Which statement describes the use of a MAC as the frame carrying this packet leaves the s0/0/0 interface of R1（）。

A.The frame does not have MAC addresses.

B.The source MAC address in the frame is the MAC address of the NIC of Host 1.

C.The source MAC address in the frame is the MAC address of the s0/0/0 interface of R1.

D.The destination MAC address in the frame is the MAC address of the NICof server 1.

E.The destination MAC address in the frame is the MAC address of the s0/0/0 interface of R2

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第7题

Refer to the graphic.Host A is communicating with the seiver. What will be the source MAC address of the frames received by Host A from the server？（）

A.the MAC address of the seiver network interface

B.the MAC address of host A

C.the MAC address of router interface e 1

D.the MAC address of router interface e0

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第8题

During the IPv6 autoconfiguration, what does the device append to the 64- bit prefix that it receives from the router to create its IPv6 address？（）

A. a pseudora ndom generated number

B. its locally configured IPv4 address

C. the DHCP - supplied device ID

D. its MAC address

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第9题

Examine the following excerpt from the show ip ospf database asbr -summary command on rout

er R1 (RID 1.1.1.1). Which answer can be verified as definitely true based on this output？（）LS Type: Summary Links (AS Boundary Router)Link State ID: 9.9.9.9 (AS Boundary Router address)Advertising Router: 3.3.3.3LS Seq Number: 8000000DChecksum: 0xE43ALength: 28Network Mask: /0TOS: 0 Metric: 100

A. The output describes the contents of a Type 5 LSA

B. 3.3.3.3 identifies a ro uter as being the router performing redistribution

C. R1‘s metric for its best route to reach the router with RID 9.9.9.9 is 100

D. The router with RID 3.3.3.3‘s metric for its best route to reach the router with RID 9.9.9.9 is 100

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第10题

Host 1 sends an ICMP echo request to remote sever1. Layer2 header of the frame containing the ping packet（）。

A.The IP address of sever 1.

B.The MAC address of NIC in sever 1.

C.The IP address of F0/0 interface of router R1.

D.The MAC address of the Fa0/0 interface of router R1.

E.The IP address of the s0/0/0 interface of router R2