單項選擇題What is the default administrative distance of OSPF?()

A. 120
B. 100
C. 90
D. 110


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2.單項選擇題Which statement is true, as relates to classful or classless routing?()

A. Automatic summarization at classful boundries can cause problems on discontinuous subnets
B. EIGRP and OSPF are classful routing protocols and summarize routes by default
C. RIPv1 and OSPF are classless routing protocols
D. Classful routing protocols send the subnet mask in routing updates

3.單項選擇題Which device might be installed at a branch office to enable and manage an IPsec site-to-site VPN?()

A. Cisco IOS IPsec/SSL VPN client
B. Cisco VPN Clinet
C. ISDN terminal adapter
D. Cisco Adaptive Security Appliance

4.單項選擇題At which layer of the OSI model is RSTP used to prevent loops?()

A. data link
B. network
C. physical
D. transport

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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?()

題型:單項選擇題

Which encapsulation type is a Frame Relay encapsulation type that is supported by Cisco routers?()

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

題型:單項選擇題

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

題型:單項選擇題

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

題型:單項選擇題

Which IPsec security protocol should be used when confidentiality is required?()

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While troubleshooting a network problem,a technician discovers that the current copy of the Cisco IOS is outdated and needs to be updated.Which of the following commands would the technician issue to replace the Cisco router IOS with the newer version?()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

Which command encrypts all plaintext passwords?()

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On which options are standard access list based?()

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