Host 1 is trying to communicate with H...

多项选择题Host 1 is trying to communicate with Host 2. The e0 interface on Router C is down. Which of the following are true (Choose two.)（）。

A.Router C will use ICMP to inform Host 1 that Host 2 cannot be reached
B.Router C will use ICMP to inform Router B that Host 2 cannot be reached
C.Router C will use ICMP to inform Host 1, Router A, and Router B that Host 2 cannot be reached
D.Router C will send a Destination Unreachable message type
E.Router C will send a Router Selection message type
F.Router C will send a Source Quench message type

点击查看答案

您可能感兴趣的试卷

你可能感兴趣的试题

1.单项选择题Which IPV6 routing protocol uses multicast group FF02::8 to send updates?（）

A.RIPng
B.OSPFv3
C.IS-IS for IPv6
D.static

点击查看答案

2.多项选择题What information does a router running a link-state protocol use to build and maintain its topological database?（）

A.hello packets
B.SAP messages sent by other routers
C.LSAs from other routers
D.beacons received on point-to-point links
E.routing tables received from other link-state routers
F.TTL packets from designated routers

点击查看答案

3.多项选择题OSPF routing uses the concept of areas. What are the characteristics of OSPF areas? （）

A.Each OSPF area requires a loopback interface to be configured.
B.Areas may be assigned any number from 0 to 65535.
C.Area 0 is called the backbone area.
D.Hierarchical OSPF networks do not require multiple areas.
E.Multiple OSPF areas must connect to area 0.
F.Single area OSPF networks must be configured in area 1.

点击查看答案

4.多项选择题Which are valid modes for a switch port used as a VLAN trunk? （）

A.transparent
B.auto
C.on
D.desirable
E.blocking
F.forwarding

点击查看答案

5.填空题流控的三种方式是（）、（）、（）。

参考答案：抑制技术；缓存技术；窗口机制

6.多项选择题Which two values are used by Spanning Tree Protocol to elect a root bridge (Choose two.)（）。

A.amount of RAM
B.bridge priority
C.IOS version
D.IP address
E.MAC address
F.speed of the links

点击查看答案

7.单项选择题Which component of VPN technology ensures that data can be read only by its intended recipient?（）

A.dataintegrity
B.encryption
C.keyexchange
D.authentication

点击查看答案

8.多项选择题An inbound access list has been configured on a serial interface to deny packet entry for TCP and UDP ports 21, 23 and 25. What types of packets will be permitted by this ACL? （）

A.FTP
B.Telnet
C.SMTP
D.DNS
E.HTTP
F.POP3

点击查看答案

9.多项选择题保留给自环测试的IP地址是（）。

A.127.0.0.0
B.127.0.0.1
C.224.0.0.9
D.126.0.0.1
E.127.0.0.121

点击查看答案

10.多项选择题以下协议技术中，采用面向连接方式进行通信的有（）。

A.IP
B.X.25
C.Ethernet
D.Frame-relay

点击查看答案