單項選擇題The following configuration line was added to router R1 Access-list 101 permit ip 10.25.30.0 0.0.0.255 any What is the effect of this access list configuration?()

A.ermit all packets matching the first three octets of the source address to all destinations
B.permit all packet matching the last octet of the destination address and accept all source addresses
C.permit all packet matching the host bits in the source address to all destinations
D.permit all packet from the third subnet of the network address to all destinations


您可能感興趣的試卷

你可能感興趣的試題

1.多項選擇題Which statements describe the routing protocol OSPF?()

A. It supports VLSM.
B. It is used to route between autonomous systems.
C. It confines network instability to one area of the network.
D. It increases routing overhead on the network.
E. It allows extensive control of routing updates.
F. It is simpler to configure than RIP v2.

3.單項選擇題How will the above access lists affect traffic?()

A.FTP traffic from 192.169.1.22 will be denied
B.No traffic, except for FTP traffic will be allowed to exit E0
C.FTP traffic from 192.169.1.9 to any host will be denied
D.All traffic exiting E0 will be denied
E.All FTP traffic to network 192.169.1.9/29 will be denied

4.多項選擇題What information does a router running a link-state protocol use to build and maintain its topological database? ()

A. hello packets
B. SAP messages sent by other routers 
C. LSAs from other routers
D. beacons received on point-to-point links
E. routing tables received from other link-state routers
F. TTL packets from designated routers

5.單項選擇題

Refer to the exhibit.HostA cannot ping HostB.Assuming routing is properly configured,what could be thecause of this problem?()

A.HostA is not on the same subnet as its default gateway
B.The address of SwitchA is a subnet address
C.The Fa0/0 interface on RouterA is on a subnet that cannot be used
D.The serial interfaces of the routers are not on the same subnet
E.The Fa0/0 interface on RouterB is using a broadcast address

最新試題

在Cisco IOS 設備中,啟動配置文件存儲于何處?()

題型:單項選擇題

請參見圖示。電纜1和電纜2分別按照特定的物理層要求接線。哪三個網(wǎng)段使用電纜2?()

題型:多項選擇題

請參見圖示。一臺主機正使用NAT 連接到Internet。下列哪三項IP 地址可實現(xiàn)此連接?()

題型:多項選擇題

請參見圖示。主機A 正在訪問多臺服務器。結合使用什么端口號和地址即可唯一識別特定服務器上運行的特定進程?()

題型:單項選擇題

請參見圖示。在網(wǎng)絡中,PC1向PC2發(fā)送了一條消息。PC2收到的幀如圖所示。該幀中的哪一信息確定了正確的目的應用程序?()

題型:單項選擇題

下列哪些是私有IP 地址的地址范圍?()

題型:多項選擇題

請參見圖示。主機B 嘗試與主機C 建立TCP/IP 會話。在嘗試期間,San Francisco 器由器的FastEthernet 接口fa0/1捕獲到一個幀。捕獲的幀中包含源IP 地址為10.10.1.2而目的IP 地址為10.31.1.20的數(shù)據(jù)包。捕獲該幀時,它的目的MAC 地址是什么?()

題型:單項選擇題

何時必須使用clock rate 命令配置路由器串行接口?()

題型:單項選擇題

請參見圖示。網(wǎng)絡中的所有設備均使用默認配置。此拓撲中需要多少個邏輯地址范圍?()

題型:單項選擇題

請參見圖示。從主機X 發(fā)出的到主機Y 的tracert 命令已成功。下列哪一項正確地反映了追蹤列表中顯示的中間網(wǎng)絡設備的順序?()

題型:單項選擇題