多項(xiàng)選擇題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


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1.多項(xiàng)選擇題Given the address 192.168.20.19/28, which of the following are valid host addresses on this subnet?()

A.192.168.20.29
B.192.168.20.16
C.192.168.20.17
D.192.168.20.31
E.192.168.20.0

3.多項(xiàng)選擇題

Use the output from the router shown in the graphic above to determine which of the following are correct.()

A. Router John uses a link-state routing protocol.
B. Router John will receive routing updates on the Serial0/0 interface.
C. Router John will receive routing updates on the Serial0/1 interface.
D. Router John will send routing updates out the Serial0/0 interface.
E. Router John will send routing updates out the FastEthernet0/0 interface.
F. Router John will send routing updates out the Serial0/1 interface.

4.多項(xiàng)選擇題

Which of the following statements describe the network shown in the graphic?()

A. There are two broadcast domains in the network.
B. There are four broadcast domains in the network.
C. There are six broadcast domains in the network.
D. There are four collision domains in the network.
E. There are five collision domains in the network.
F. There are seven collision domains in the network.

5.多項(xiàng)選擇題Which characteristics are representative of a link-state routing protocol?()

A. provides common view of entire topology
B. exchanges routing tables with neighbors
C. calculates shortest path
D. utilizes event-triggered updates
E. utilizes frequent periodic updates

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