單項選擇題Which command can be used to verify the DLCI destination address in a Frame Relay static configuration?()

A.show frame-relay end-to-end
B.show frame-relay map
C.show frame-relay lmi
D.show frame-relay pvc


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2.多項選擇題Which two values are used by Spanning Tree Protocol to elect a root bridge?()

A.amount of RAM
B.bridge priority
C.IOS version
D.IP address
E.MAC address
F.speed of the links

3.多項選擇題What are two advantages of Layer 2 Ethernet switches over hubs?()

A.decreasing the number of collision domains
B.filtering frames based on MAC addresses
C.allowing simultaneous frame transmissions
D.increasing the size of broadcast domains
E.increasing the maximum length of UTP cabling between devices

4.多項選擇題The network security policy requires that only one host be permitted to attach dynamically to each switch interface. If that policy is violated, the interface should shut down. Which two commands must the network administrator configure on the 2950 Catalyst switch to meet this policy (Choose two.)()。

A.Switch1(config-if)# switchport port-security maximum 1
B.Switch1(config)# mac-address-table secure
C.Switch1(config)# access-list 10 permit ip host
D.Switch1(config-if)# switchport port-security violation shutdown
E.Switch1(config-if)# ip access-group 10

5.單項選擇題

Refer to the exhibit.Based on the exhibited routing table,how will packets from a host within the192.168.10.192/26 LAN be forwarded to 192.168.10.1?()

A.The router will forward packets from R3 to R2 to R1
B.The router will forward packets from R3 to R1
C.The router will forward packets from R3 to R1 to R2
D.The router will forward packets from R3 to R2 to R1 AND from R3 to R1

6.多項選擇題

The access control list shown in the graphic has been applied to the Ethernet interface of router R1using the ip access-group 101 in command.Which of the following Telnet sessions will be blocked by this ACL?()

 

A.from host PC1 to host 5.1.1.10
B.from host PC1 to host 5.1.3.10
C.from host PC2 to host 5.1.2.10
D.from host PC2 to host 5.1.3.8

7.單項選擇題

Refer to the exhibit.Which is the most efficient summarization that R1 can use to advertise its networks toR2?()

A.172.1.4.0/22
B.172.1.0.0/21
C.172.1.0.0/22
D.172.1.4.0/25  172.1.4.128/25  172.1.5.0/24  172.1.6.0/24  172.1.7.0/24
E.172.1.4.0/24  172.1.5.0/24  172.1.6.0/24  172.1.7.0/24

8.多項選擇題Which two statements are true about the command ip route 172.16.3.0 255.255.255.0 192.168.2.4?()

A.It establishes a static route to the 172.16.3.0 network.
B.It establishes a static route to the 192.168.2.0 network.
C.It configures the router to send any traffic for an unknown destination to the 172.16.3.0 network.
D.It configures the router to send any traffic for an unknown destination out the interface with the address 192.168.2.4.
E.It uses the default administrative distance.
F.It is a route that would be used last if other routes to the same destination exist.

9.多項選擇題What are two benefits of using VTP in a switching environment?()

A.It allows switches to read frame tags.
B.It allows ports to be assigned to VLANs automatically.
C.It maintains VLAN consistency across a switched network.
D.It allows frames from multiple VLANs to use a single interface.
E.It allows VLAN information to be automatically propagated throughout the switching environment.

10.多項選擇題Which two are advantages of static routing when compared to dynamic routing?()

A.Security increases because only the network administrator may change the routing tables.
B.Configuration complexity decreases as network size increases.
C.Routing updates are automatically sent to neighbors.
D.Route summarization iscompued automatically by the router.
E.Routing traffic load is reduced when used in stub network links.
F.An efficient algorithm is used to build routing tables,using automatic updates.
G.Routing tables adapt automatically to topology changes.

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