11.Given the partial router configuration in the graphic, why does the workstation with the IP address 192.168.1.153/28 fail to access the Internet? (Choose two.)
A. The NAT inside interfaces are not configured properly.
B. The NAT outside interface is not configured properly.
C. The router is not properly configured to use the access control list for NAT.
D. The NAT pool is not properly configured to use routable outside addresses.
E. The access control list does not include the IP address 192.168.1.153/28 to access the Internet.
ANSWER: AC
12.Refer to the exhibit. Given this output for SwitchC, what should the network administrator’s next action be?
A. Check the trunk encapsulation mode for SwitchC’s fa0/1 port. B.Check the duplex mode for SwitchC’s fa0/1 port.?.Check the duplex mode for SwitchA’s fa0/2 port.
?.Check the trunk encapsulation mode for SwitchA’s fa0/2 port.
ANSWER:?
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13.What does a Layer 2 switch use to decide where to forward a received frame? ? source MAC address
? source IP address ? source switch port ? destination IP address
? destination port address ? destination MAC address
ANSWER:? 14.Refer to the exhibit. Which two statements are true about the loopback address that is configured on RouterB? (Choose two.)
? It ensures that data will be forwarded by RouterB. ? It provides stability for the OSPF process on RouterB.? It specifies that the router ID for RouterB should be 10.0.0.1.? It decreases the metric for routes that are advertised from RouterB.? It indicates that RouterB should be elected the DR for the LAN.
ANSWER:??
15.When a new trunk link is configured on an IOS based switch, which VLANs are allowedover the link?? By default, all defined VLANs are allowed on the trunk.
? Each single VLAN, or VLAN range, must be specified with the switchport mode command. ? Each single VLAN, or VLAN range, must be specified with the vtp domain command. ? Each single VLAN, or VLAN range, must be specified with the vlan database command.
ANSWER:?
16.Which are valid modes for a switch port used as a VLAN trunk? (Choose three.) A transparentB autoC onD desirable E blockingF forwarding
ANSWER: BCD
17.Refer to the exhibit. The network shown in the exhibit is running the RIPv2 routing protocol. The network has converged, and the routers in this network are functioning properly. The FastEthernet0/0 interface on R1 goes down. In which two ways will the routers in this network respond to this change? (Choose two.)
A All routers will reference their topology database to determine if any backup routes to the
192.168.1.0 network are known.B Routers R2 and R3 mark the route as inaccessible and will not accept any further routingupdates from R1 until their hold-down timers expire. C Because of the split-horizon rule, router R2 will be prevented from sending erroneous information to R1 about connectivity to the 192.168.1.0 network. D When router R2 learns from R1 that the link to the 192.168.1.0 network has been lost, R2will respond by sending a route back to R1 with an infinite metric to the 192.168.1.0 network. E R1 will send LSAs to R2 and R3 informing them of this change, and then all routers willsend periodic updates at an increased rate until the network again converges.
ANSWER: CD
18.How does replacing a hub with a switch affect CSMA/CD behavior in an Ethernet network?A It effectively eliminates collisions. B In increases the size of the collision domain by allowing more devices to be connected at once. C It decreases the amount of time that a jam signal must be sent to reach all network devices. D It reduces the total amount of bandwidth available to each device.E It eliminates Layer 3 broadcast traffic.
ANSWER: A
19.Refer to the exhibit. A problem with network connectivity has been observed. It issuspected that the cable connected to switch port Fa0/9 on Switch1 is disconnected. What would be an effect of this cable being disconnected?
? Host B would not be able to access the server in VLAN9 until the cable is reconnected. ? Communication between VLAN3 and the other VLANs would be disabled.? The transfer of files from Host B to the server in VLAN9 would be significantly slower.? For less than a minute, Host B would not be able to access the server in VLAN9. Thennormal network function would resume.
ANSWER:?
20.Refer to the exhibit. Each of these four switches has been configured with a hostname, as well as being configured to run RSTP. No other configuration changes have been made. Which three of these show the correct RSTP port roles for the indicated switches and interfaces? (Choose three.)
? SwitchA, Fa0/2, designated B SwitchA, Fa0/1, root C SwitchB, Gi0/2, root D SwitchB, Gi0/1, designated E SwitchC, Fa0/2, root F SwitchD, Gi0/2, root
ANSWER: ABF
