單項(xiàng)選擇題Why will as witch never learn a broadcast address?()

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


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1.單項(xiàng)選擇題Which command shows if an access list is assigned to an interface?()

A.show ip interface [interface] access-lists
B.show ip access-lists interface [interface]
C.show ip interface [interface]
D.show ip access-lists [interface]

2.多項(xiàng)選擇題x.25協(xié)議包含三層()。

A.分組層
B.數(shù)據(jù)鏈路層
C.物理層
D.傳輸層
E.網(wǎng)絡(luò)層

3.多項(xiàng)選擇題Which of the following are types of flow control?()

A.buffering
B.cut-through
C.windowing
D.congestion avoidance
E.load balancing

6.單項(xiàng)選擇題

輸入哪條命令可以看到以下信息?()

A.display ip routing-table
B.display ospf lsa
C.display ospf database
D.display ospf interface

7.多項(xiàng)選擇題What two things will a router do when running a distance vector routing protocol? ()

A.Send periodic updates regardless of topology changes.
B.Send entire routing table to all routers in the routing domain.
C.Use the shortest-path algorithm to the determine best path.
D.Update the routing table based on updates from their neighbors.
E.Maintain the topology of the entire network in its database.

8.多項(xiàng)選擇題Which two Ethernet fiber-optic modes support distances of greater than 550 meters?()

A.1000BASE-CX
B.100BASE-FX
C.1000BASE-LX
D.1000BASE-SX
E.1000BASE-ZX

9.多項(xiàng)選擇題What are two characteristics of RIPv2?()

A.classful routing protocol
B.variable-length subnet masks
C.broadcast addressing
D.manual route summarization
E.uses SPF algorithm to compute path

10.多項(xiàng)選擇題Which two wireless encryption methods are based on the RC4 encryption algorithm? ()

A.WEP
B.CCKM
C.AES
D.TKIP
E.CCMP

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