多項選擇題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.


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1.單項選擇題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.

2.單項選擇題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

3.多項選擇題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.

4.單項選擇題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.

5.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

6.多項選擇題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

7.單項選擇題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

8.多項選擇題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.

9.多項選擇題Which of the following statements are true regarding bridges and switches (Choose 3.)()。

A.Switches are primarily software based while bridges are hardware based.
B.Both bridges and switches forward Layer 2 broadcasts.
C.Bridges are frequently faster than switches.
D.Switches have a higher number of ports than most bridges.
E.Bridges define broadcast domains while switches define collision domains.
F.Both bridges and switches make forwarding decisions based on Layer 2 addresses.

10.多項選擇題Which of the following describe private IP addresses (Choose two.)()。

A.addresses chosen by a company to communicate with the Internet
B.addresses that cannot be routed through the public Internet
C.addresses that can be routed through the public Internet
D.a scheme to conserve public addresses
E.addresses licensed to enterprises or ISPs by an Internet registry organization

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