單項選擇題A cisco router is booting and has just completed the POST process.It is now ready to find and load an IOSimage.what function does the router perform next?()

A. It checks the configuration register
B. It attempts to boot from a TFTP server
C. It loads the first image file in flash memory
D. It inspects the configuration file in NVRAM for boot instructions


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1.單項選擇題Router A is unable to reach Router B.Both routers are running ios version 12.0.After reviewing the command output and graphic,what is the most likely cause of the problem?()

A. incorrect bandwidt h configuration
B. incorrect LMI configuration
C. incorrect map statement
D. incorrect IP address

2.單項選擇題Which command enables IPv6 forwarding on a cisco router?()

A. ipv6 host
B. ipv6 unicast-routing
C. ipv6 local
D. ipv6 neighbor

3.單項選擇題In the implementation of VLSM techniques on a network using a single Class C IP address,which subnet mask is the most efficient for point-to-point serial links?()

A. 255.255.255.240
B. 255.255.255.254
C. 255.255.255.252
D. 255.255.255.0
E. 255.255.255.248

4.單項選擇題Which IPv6 address is valid?()

A. 2031:0:130F::9C0:876A:130B
B. 2001:0DB8:0000:130F:0000:0000:08GC:140B
C. 2001:0DB8:0:130H::87C:140B
D. 2031::130F::9C0:876A:130B

5.單項選擇題Which of the following protocols uses both TCP and UDP ports?()

A. SMTP
B. Telnet
C. FTP
D. DNS

6.單項選擇題Which command enhances the 802.1D convergence time on ports that are connected to hosts?()

A. spanning-tree backbonefast
B. spanning-tree uplinkfast
C. spanning-tree portfast
D. spanning-tree cost512

8.單項選擇題Which command helps a network administrator to manage memory by displaying flash memory and NVRAM utilization?()

A. show secure
B. show file systems
C. show flash
D. show version

9.單項選擇題What is the most likely reason for the dispartly between the actual network numbers at the branches and the routes in the routing table on Gateway-Router?()

A. Branch-Router2 is configured to send both RIPv1 and RIPv2 updates.
B. Gateway-Router is configured to only receive RIPv2 updates.
C. Gateway-router is configured to receive only RIPv1 updates.
D. Branch-Router1 is configured to only send RIPv1 updates

10.單項選擇題which address range efficiently summarizes the routing table of the addresses for router main?()

A. 172.16.0.0/18
B. 172.16.0.0/16
C. 172.16.0.0/20
D. 172.16.0.0/21

最新試題

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

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

A network administrator is trying to add a new router into an established OSPF network.The networks attached to the new router do not appear in the routing tables of the other OSPF routers.Given the information in the partial configuration shown below,what configuration error is causing this problem?()Router(config)#router ospf 1Router(config-router)#network 10.0.0.0 255.0.0.0 area 0

題型:單項選擇題

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

題型:單項選擇題

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?()

題型:單項選擇題

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

題型:單項選擇題

At which layer of the OSI model dose PPP perform?()

題型:單項選擇題

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?()

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

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?()

題型:單項選擇題