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


您可能感興趣的試卷

你可能感興趣的試題

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

6.多項(xiàng)選擇題Which of the following statements are true regarding bridges and switches?()

A. Switches are primarily software based while bridges are hardware based.
B. Both bridges and switches forward Layer 2 broadcasts.
C. Bridges are frequently faster than switches.
D. Switches have a higher number of ports than most bridges.
E. Bridges define broadcast domains while switches define collision domains.
F. Both bridges and switches make forwarding decisions based on Layer 2 addresses.

7.多項(xiàng)選擇題What are some of the advantages of using a router to segment the network?()

A. Filtering can occur based on Layer 3 information.
B. Broadcasts are eliminated.
C. Routers generally cost less than switches.
D. Broadcasts are not forwarded across the router.
E. Adding a router to the network decreases latency.

8.多項(xiàng)選擇題Which of the following are true regarding bridges and switches?()

A. Bridges are faster than switches because they have fewer ports.
B. A switch is a multiport bridge.
C. Bridges and switches learn MAC addresses by examining the source MAC address of each frame received.
D. A bridge will forward a broadcast but a switch will not.
E. Bridges and switches increase the size of a collision domain.

9.多項(xiàng)選擇題Which router IOS commands can be used to troubleshoot LAN connectivity problems?()

A.ping
B.tracert
C.ipconfig
D.show ip route
E.winipcfg
F.show interfaces

10.多項(xiàng)選擇題Which of the following are benefits of VLANs?()

A. They increase the size of collision domains.
B. They allow logical grouping of users by function.
C. They can enhance network security.
D. They increase the size of broadcast domains while decreasing the number of collision domains.
E. They increase the number of broadcast domains while decreasing the size of the broadcast domains.
F. They simplify switch administration.

最新試題

While troubleshooting a network problem,a technician discovers that the current copy of the Cisco IOS is outdated and needs to be updated.Which of the following commands would the technician issue to replace the Cisco router IOS with the newer version?()

題型:單項(xiàng)選擇題

What is the default administrative distance of OSPF?()

題型:單項(xiàng)選擇題

Which command displays the CHAP authentication process as it occurs between two routers?()

題型:單項(xiàng)選擇題

After the show ip route command has been entered,the follwing routes are displayed.Which route will not be entered into the routing table of a neighboring router?()

題型:單項(xiàng)選擇題

How are VTP advertisements delivered to switches across the network?()

題型:單項(xiàng)選擇題

At which layer of the OSI model is RSTP used to prevent loops?()

題型:單項(xiàng)選擇題

A network administrator needs to configure a serial link between the main office and a remote location.The router at the remote office is a non-cisco router. How should the network administrator configure the serial interface of the main office router to make the connection?()

題型:單項(xiàng)選擇題

Which Cisco IOS diagnostics command can disrupt the operation of a router under high-load conditions?()

題型:單項(xiàng)選擇題

An administrator must assign static IP addresses to the servers in a network.For network 192.168.20.24/29, the router is assigned the first usable host address while the sales server is given the last usable host address. Which of the following should be entered into the IP propertied box for the sales server?()

題型:單項(xiàng)選擇題

When you are troubleshooting an ACL issue on a router,which command can help you to verify which interfaces are affected by the ACL?()

題型:單項(xiàng)選擇題