單項(xiàng)選擇題Host 1 sends an ICMP echo request to remote sever1. Layer2 header of the frame containing the ping packet()。

A.The IP address of sever 1.
B.The MAC address of NIC in sever 1.
C.The IP address of F0/0 interface of router R1.
D.The MAC address of the Fa0/0 interface of router R1.
E.The IP address of the s0/0/0 interface of router R2
F.The MAC address of the s0/0/0 interface of router R2


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1.多項(xiàng)選擇題What are three advantages of VLANs?()

A.VLANs establish broadcast domains in switched networks.
B.VLANs utilize packet filtering to enhance network security.
C.VLANs provide a method of conserving IP addresses in large networks.
D.VLANs provide a low-latency internetworking alternative to routed networks.
E.VLANs allow access to network services based on department,not physical location.
F.VLANs can greatly simplify adding,moving,or changing hosts on the network.

3.多項(xiàng)選擇題常見的網(wǎng)絡(luò)攻擊方法有()

A.病毒攻擊
B.偵查攻擊
C.接入攻擊
D.拒絕服務(wù)攻擊

4.單項(xiàng)選擇題assuming the default switch configuration which vlan range can be added modified and removed on a ciscoswitch?()

A.2 through 1001
B.1 through 1001
C.1  through 1002
D.2 through 1005

5.單項(xiàng)選擇題Which option is a valid IPv6 address?()

A.2001:0000:130F::099a::12a
B.2002:7654:A1AD:61:81AF:CCC1
C.FEC0:ABCD:WXYZ:0067::2A4
D.2004:1:25A4:886F::1

6.單項(xiàng)選擇題which command is used to enable CHAP authentication whit PAP as the fallback method on a serialinterface?()

A.(config-if)#authentication ppp chap fallback ppp
B.(config-if)#authentication ppp chap pap
C.(config-if)#ppp authentication  chap pap
D.(config-if)#ppp authentication  chap fallback ppp

7.多項(xiàng)選擇題下列哪些屬于安全組織()

A.SANS
B.Cisco
C.CERT
D.ISC

8.單項(xiàng)選擇題R1 forwards a packet from Host 1 to remote Server 1. Which statement describes the use of a MAC as the frame carrying this packet leaves the s0/0/0 interface of R1()。

A.The frame does not have MAC addresses.
B.The source MAC address in the frame is the MAC address of the NIC of Host 1.
C.The source MAC address in the frame is the MAC address of the s0/0/0 interface of R1.
D.The destination MAC address in the frame is the MAC address of the NICof server 1.
E.The destination MAC address in the frame is the MAC address of the s0/0/0 interface of R2

9.單項(xiàng)選擇題What is known as "one-to-nearest" addressing in IPv6?()

A.global unicast
B.anycast
C.multicast
D.unspecified address

10.單項(xiàng)選擇題Which type of cable is used to connect the COM port of a host to the COM port of a router or switch?()

A.crossover
B.straight-through
C.rolled
D.shielded twisted-pair

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