單項(xiàng)選擇題What is an appropriate use of a default route?()

A.to provide routing to a local web server
B.to provide routing from an ISP to a stub network
C.to provide routing that will override the configured dynamic routing protocol
D.to provide routing to a destination that is not specified in the routing table and which is outside the local network


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1.多項(xiàng)選擇題What are two reasons a network administrator would use CDP (Choose two.)()。

A.to verify the type of cable interconnecting two devices
B.to determine the status of network services on a remote device
C.to obtain VLAN information from directly connected switches
D.to verify Layer 2 connectivity between two devices when Layer 3 fails
E.to obtain the IP address of a connected device in order to telnet to the device
F.to determine the status of the routing protocols between directly connected routers

2.多項(xiàng)選擇題Which two statements are true regarding EIGRP?()

A.Passive routes are in the process of being calculated by DUAL.
B.EIGRP supports VLSM, route summarization, and routing update authentication.
C.EIGRP exchanges full routing table information with neighboring routers with every update.
D.If the feasible successor has a higher advertised distance than the successor route, it becomes the primary route.
E.A query process is used to discover a replacement for a failed route if a feasible successor is not identified from the current routing information.

3.單項(xiàng)選擇題Why will a switch never learn a broadcast address()。

A.Broadcasts only use network layer addressing.
B.A broadcast frame is never forwarded by a switch.
C.A broadcast address will never be the source address of a frame.
D.Broadcast addresses use an incorrect format for the switching table.
E.Broadcast frames are never sent to switches.

4.單項(xiàng)選擇題Which commands is necessary to permit SSH or Telnet access to a cisco switch that is otherwise configured for these vty line protocols?()

A.transport type all
B.transport output all
C.transport preferred all
D.transport input all

5.多項(xiàng)選擇題As a frame leaves a Layer 3 device, the Layer 2 encapsulation information is changed from what it was when it entered the devicE.For what two reasons can this happen? ()

A.The data is moving from 10BASE-TX to 100BASE-TX.
B.The WAN encapsulation type has changed.
C.The data format has changed from analog to digital.
D.The source and destination hosts are in the same subnet.
E.The source and destination MAC addresses have changed.

6.單項(xiàng)選擇題Which additional configuration step is necessary in order to connect to an access point that has SSID broadcasting disabled()。

A.Set the SSID value in the client software to public.
B.Configure open authentication on the AP and the client.
C.Set the SSID value on the client to the SSID configured on the AP.
D.Configure MAC address filtering to permit the client to connect to the AP.

7.多項(xiàng)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

8.多項(xiàng)選擇題Which three Layer 2 encapsulation types would be used on a WAN rather than a LAN (Choose three.)()。

A.HDLC
B.Ethernet
C.Token Ring
D.PPP
E.FDDI
F.Frame Relay

9.單項(xiàng)選擇題A router receives information about network 192.168.10.0/24 from multiple sources. What will the router consider the most reliable information about the path to that network()。

A.a directly connected interface with an address of 192.168.10.254/24
B.a static route to network 192.168.10.0/24
C.a RIP update for network 192.168.10.0/24
D.an OSPF update for network 192.168.0.0/16
E.a default route with a next hop address of 192.168.10.1
F.a static route to network 192.168.10.0/24 with a local serial interface configured as the next hop

10.多項(xiàng)選擇題Which of the following describes the roles of devices in a WAN (Choose three.)()。

A.A CSU/DSU terminates a digital local loop.
B.A modem terminates a digital local loop.
C.A CSU/DSU terminates an analog local loop.
D.A modem terminates an analog local loop.
E.A router is commonly considered a DTE device.
F.A router is commonly considered a DCE device.

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