單項(xiàng)選擇題What is the first 24 bits in a MAC address called?()

A. NIC
B. BIA
C. OUI
D. VAI


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1.單項(xiàng)選擇題When is it necessary to use a public IP address on a routing interface?()

A. Connect a router on a local network.
B. Connect a router to another router.
C. Allow distribution of routes between networks.
D. Translate a private IP address.
E. Connect a network to the Internet.

2.單項(xiàng)選擇題What will happen if a private IP address is assigned to a public interface connected to an ISP?()

A. Addresses in a private range will be not routed on the Internet backbone.
B. Only the ISP router will have the capability to access the public network.
C. The NAT process will be used to translate this address in a valid IP address.
D. Several automated methods will be necessary on the private network.
E. A conflict of IP addresses happens, because other public routers can use the same range.

3.單項(xiàng)選擇題Which IP address can be assigned to an Internet interface?()

A. 10.180.48.224
B. 9.255.255.10
C. 192.168.20.223
D. 172.16.200.18

4.單項(xiàng)選擇題What is the principle reason to use a private IP address on an internal network?()

A. Subnet strategy for private companies.
B. Manage and scale the growth of the internal network.
C. Conserve public IP addresses so that we do not run out of them.
D. Allow access reserved to the devices.

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What is the purpose of the cisco Vlan Trunking protocol?()

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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 command is used to display the collection of OSPF link states?()

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Which cisco ios command can help to determine the timing of various debug events,relative to each other,when you are debugging a complicated router issue?()

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A router receives information about network 192.168.10.0/24 from multiple sources.What will the router consider the most reliable information about the path to that network?()

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Three switches are connected to one anther via trunk ports.Assuming the default switch configuration,which switch is elected as the root bridge for the spanning-tree instance of vlan 1?()

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Which device might be installed at a branch office to enable and manage an IPsec site-to-site VPN?()

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

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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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What is the result of issuing the frame-relay map ip 192.168.1.2 202 broadcast command?()

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