多項選擇題Which two passwords must be supplied in order to connect by Telnet to a properly secured Cisco switch and make changes to the device configuration? (Choose two.)()

A.console password
B.vty password
C.aux password
D.tty password
E.enable secret password
F.username password


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1.多項選擇題The OSPF Hello protocol performs which of the following tasks? (Choose two.)()

A.It provides dynamic neighbor discovery.
B.It detects unreachable neighbors in 90 second intervals.
C.It maintains neighbor relationships.
D.It negotiates correctness parameters between neighboring interfaces.
E.It uses timers to elect the router with the fastest links as the designated router.
F.It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF

2.多項選擇題A network administrator wants to ensure that only the server can connect to port Fa0/1 on a Catalyst switch. The server is plugged into the switch Fa0/1 port and the network administrator is about to bring the server online. What can the administrator do to ensure that only the MAC address of the server is allowed by switch port Fa0/1?()

A.Configure port Fa0/1 to accept connections only from the static IP address of the server.
B.Employ a proprietary connector type on Fa0/1 that is incompatible with other host connectors.
C.Configure the MAC address of the server as a static entry associated with port Fa0/1.
D.Bind the IP address of the server to its MAC address on the switch to prevent other hosts from spoofing the server IP address.
E.Configure port security on Fa0/1 to reject traffic with a source MAC address other than that of the server.
F.Configure an access list on the switch to deny server traffic from entering any port other than Fa0/1.

3.多項選擇題At which layers of the OSI model do WANs operate? (Choose two.)()

A.application layer
B.session layer
C.transport layer
D.network layer
E.datalink layer
F.physical layer

4.多項選擇題Which three statements describe the differences between RIP version 1 and RIP version 2? (Choose three.)()

A.RIP version 1 broadcasts updates whereas RIP version 2 uses multicasts.
B.RIP version 1 multicasts updates while RIP version 2 uses broadcasts.
C.Both RIP version 1 and RIP version 2 are classless routing protocols.
D.RIP Version 2 is a classless routing protocol whereas RIP version 1 is a classful routing protocol.
E.Both RIP version 1 and version 2 support authentication.
F.RIP version 2 sends the subnet mask in updates and RIP version 1 does not.

5.單項選擇題When a new trunk is configured on a 2950 switch, which VLANs by default are allowed over the trunk link?()

A.no VLANs
B.all VLANs
C.only VLANs 1 - 64
D.only the VLANs that are specified when creating the trunk

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Which command encrypts all plaintext passwords?()

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What is the subnetwork address for a host with the IP address 201.100.5.68/28?()

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Which statement describes the rule of split horizon?()

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Which protocol reduces administrative overhead in a switched network by allowing the configuration of a new VLAN to be distributed to all the switches in a domain?()

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