單項(xiàng)選擇題What is the purpose using the traceroute command?()

A. to map all the devices on a network.
B. to display the current TCP/IP configuration values.
C. to see how a device MAC address is mapped to its IP address.
D. to see the path a packet will take when traveling to a specified destination.
E. to display the MTU values for each router in a specified network path from source to a destination.


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1.單項(xiàng)選擇題Which type of attack is characterized by flood of packet that requesing a TCP connection to a server?()

A. denial of service
B. brute force
C. reconnaissance
D. Trojan horse

2.單項(xiàng)選擇題What is the default routing update period for RIPv2?()

A. 15 seconds
B. 30 seconds
C. 180 seconds
D. 240 seconds

3.單項(xiàng)選擇題An administrator issues the command ping 127.0.0.1 from the command line prompt on a PC. If a reply is received, what does this confirm?()

A. The PC has connectivity with a local host.
B. The PC has connectivity with a Layer 3 device.
C. The PC has a default gateway correctly configured
D. The PC has connectivity up to Layer 5 of the OSI model
E. The PC has the TCP/IP protocol stack correctly installed.

4.單項(xiàng)選擇題How does using the service password encryption command on a router provide additional security? ()

A. by encrypting all passwords passing through the router
B. by encrypting passwords in the plain text configuration file
C. by requiring entry of encrypted passwords for access to the device
D. by configuring an MD5 encrypted key to be used by routing protocols to validate routing exchanges
E. by automatically suggesting encrypted passwords for use in configuring the router

5.單項(xiàng)選擇題What is the maximum data rate specified for IEEE 802.11b WLANs?()

A. 10 Mbps
B. 11 Mbps
C. 54 Mbps
D. 100 Mbps

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Which pairing reflects a correct protocol-and-metric relationship?()

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

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Three access ports have been installed and configured to a small office.What term defines the wireless topology?()

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Which command encrypts all plaintext passwords?()

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

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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?()

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What is the default administrative distance of OSPF?()

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The network administrator cannot to switch 1 over a telnet session,although the hosts attached to switch 1 can ping the interface Fa0/0 of the router.Given the information in the graphic and assuming that the router and switch2 are configured properly,which of the following commands should be issued on switch 1 to correct this problem?()

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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?()

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Which statement is true, as relates to classful or classless routing?()

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