單項選擇題Which network protocol does DNS use?（）

A. FTP
B. TFTP
C. TCP
D. UDP
E. SCP


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1.單項選擇題Which statement describes the process of dynamically assigning IP addresses by the DHCP server?（）

A. Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.
B. Addresses are permanently assigned so that the hosts uses the same address at all times.
C. Addresses are assigned for a fixed period of time, at the end of the period, a new request for an address must be made.
D. Addresses are leased to hosts, which periodically contact the DHCP server to renew the lease.

2.單項選擇題On corporate network, hosts on the same VLAN can communicate with each other, but they are unable to communicate with hosts on different VLANs. What is needed to allow communication between the VLANs?（）

A. a router with subinterfaces configured on the physical interface that is connected to the switch
B. a router with an IP address on the physical interface connected to the switch
C. a switch with an access link that is configured between the switches
D. a switch with a trunk link that is configured between the switches

3.單項選擇題A switch is configured with all ports assigned to vlan 2 with full duplex FastEthernet to segment existing departmental traffic. What is the effect of adding switch ports to a new VLAN on the switch?（）

A. More collision domains will be created.
B. IP address utilization will be more efficient.
C. More bandwidth will be required than was needed previously.
D. An additional broadcast domain will be created.

4.單項選擇題Which switch would STP choose to become the root bridge in the selection process?（）

A. 32768: 11-22-33-44-55-66
B. 32768: 22-33-44-55-66-77
C. 32769: 11-22-33-44-55-65
D. 32769: 22-33-44-55-66-78

最新試題

An employee of ABC company has move to an office on a different floor. Although the administrator is able to telnet to all of the routers,the address of Switch F is needed in order to verify that the employee remains in the same VLAN.Which action could be used by the administrator to find the IP address of Switch F?（）

題型：單項選擇題

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

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

題型：單項選擇題

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

題型：單項選擇題

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

題型：單項選擇題

A network administrator is planning a network installation for a large organization.The design requires 100 separate subnetworks,so the company has acquired a Class B network address.What subnet mask will provide the 100 subnetworks required, if 500 usable host addresses are required per subnet?（）

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

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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 address is the IPV6 all-RIP-routers muticast group address that is used by RIPng as the destaion address?（）

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