单项选择题A Class C network address has been subnetted with a /27 mask.Which of the following addresses is a broadcast address for one of the resulting subnets?()

A.201.57.78.33
B.201.57.78.64
C.201.57.78.97
D.201.56.78.97
E.201.57.78.159
F.201.57.78.254


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1.单项选择题Which command is required for connectivity in a Frame Relay network if Inverse ARP is not operational? ()

A. frame-relay arp
B. frame-relay map
C. frame-relay interface-dlci
D. frame-relay lmi-type

2.多项选择题Identify three valid host addresses in the 192.168.27.0 network with a subnet mask of 255.255.255.240. ()

A.192.168.27.33
B.192.168.27.112
C.192.168.27.119
D.192.168.27.126
E.192.168.27.175
F.192.168.27.208

3.单项选择题You are upgrading your Cisco router IOS from a TFTP server over the network. The upgrade procedure is stopped and you are prompted to erase the current flash contents before continuing. What is most plausible reason for this? ()

A. There is insufficient room for more than one image.
B. The router has detected a copy of the current software image on the TFTP server.
C. The file can be relocated and not compressed.
D. The image to load is a binary executable file.

4.单项选择题At Layer 2 of the OSI model, which component connects a host to the network media?()

A. Hub
B. Switch
C. Bridge
D. NIC
E. Transceiver

5.单项选择题Which command is required for connectivity in a Frame Relay network if Inverse ARP is not operational?()

A. frame-relay arp
B. frame-relay map
C. frame-relay interface-dlci
D. frame-relay lmi-type

6.单项选择题What will a router do during startup if a configuration file is not located in NVRAM?()

A. it will search for the configuration file in the locations specified by boot system commands.
B. it will search for the configuration file in flash and if no configuration file is found there, it will enter the setup dialog.
C. it will search for the configuration file on a TFTP server and if no configuration file is found there, it will enter the setup dialog.
D. it will search for the configuration file in flash and if no configuration file is found there, it will load a limited configuration file from ROM.
E. it will search for the configuration file on a TFTP server and if no configuration file is found there, it will load a limited configuration file from ROM.

7.单项选择题A router leams about a remote network from EIGRP.OSPF. and a static route. Assuming all routing protocols are using their default administrative distance, which route will the router use to forward data to the remote network?()

A. The router will use the static route.
B. The router will use the OSPF route.
C. The route will use the EIGRP route.
D. The router will load balance and use all three routes.

9.单项选择题What is the advantage of using a multipoint interface instead of point-to-point subinterfaces when configuring a Frame Relay hub in a hub-and-spoke topology?()

A. it avoids split-horizon issues with distance vector routing protocols.
B. IP addresses can be conserved if VLSM is not being used for subnetting.
C. A multipoint interface offers greater security compared to point-to-point subinterface configurations.
D. The multiple IP network addresses required for a multipoint interface provide greater addressing flexibility over point-to-point configurations.

10.多项选择题What are the possible trunking modes for a switch port?()

A.transparent
B.auto
C.on
D.desirable
E.client
F.forwarding

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Which of the following describe router functions?()

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What does a configuration Register Setting of 0x2105 indicate to the Router? ()

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What is the purpose of pressing the Ctrl+Break keys during the router password recover procedure?()

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New switches have been purchased for a network upgrade. The objective for the network design emphasizes efficient, error-free transport instead of fast transport.Which switching mode should be configured on the new switches to provide error-free transport to the network? ()

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What should the configuration register value be after successfully completing the password recover procedure and returning the router to normal operation? ()

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Which of the following statements regarding routed and routing protocols are true?()

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