FINAL EXAM - SWITCHING, ROUTING, AND WIRELESS

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FINAL EXAM - SWITCHING, ROUTING, AND WIRELESS

ESSENTIALS.

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -100 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: 4) The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation.

Answer:

Refer to the exhibit. A network administrator is configuring a router as a DHCPv6 server. The administrator issues a show ipv6 dhcp pool command to verify the configuration. Which statement explains the reason that the number of active clients is 0?

1) The default gateway address is not provided in the pool.

2) No clients have communicated with the DHCPv6 server yet.

3) The IPv6 DHCP pool configuration has no IPv6 address range specified.

4) The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation.Question 2: 2) The IP address of the default gateway router is not contained in the excluded address list.

Answer:

Refer to the exhibit. If the IP addresses of the default gateway router and the DNS server are correct, what is the configuration problem?

1) The DNS server and the default gateway router should be in the same subnet.

2) The IP address of the default gateway router is not contained in the excluded address list.

3) The default-router and dns-server commands need to be configured with subnet masks.

4) The IP address of the DNS server is not contained in the excluded address list.Question 3: Which mitigation technique would prevent rogue servers from providing false IP configuration parameters to clients?1) implementing port security 2) turning on DHCP snooping 3) disabling CDP on edge ports 4) implementing port-security on edge ports

Answer:

2) turning on DHCP snooping

Question 4: 1) STP will block one of the redundant links.

Answer:

Refer to the exhibit. A network administrator has connected two switches together using EtherChannel technology. If STP is running, what will be the end result?

1) STP will block one of the redundant links.

2) The switches will load balance and utilize both EtherChannels to forward packets.

3) The resulting loop will create a broadcast storm.

4) Both port channels will shutdown.Question 5: Which three pairs of trunking modes will establish a functional trunk link between two Cisco switches? (Choose three.) 1) dynamic auto - dynamic auto 2) access - trunk 3) dynamic desirable - trunk

4) access - dynamic auto 5) dynamic desirable - dynamic desirable 6) dynamic desirable - dynamic auto

Answer:

3) dynamic desirable - trunk

5) dynamic desirable - dynamic desirable 6) dynamic desirable - dynamic auto Question 6: Which option shows a correctly configured IPv4 default static route?1) ip route 0.0.0.0 255.255.255.0 S0/0/0 2) ip route 0.0.0.0 0.0.0.0 S0/0/0 3) ip route 0.0.0.0 255.255.255.255 S0/0/0 4) ip route 0.0.0.0 255.0.0.0 S0/0/0

Answer:

2) ip route 0.0.0.0 0.0.0.0 S0/0/0 Question 7: What action takes place when a frame entering a switch has a unicast destination MAC address appearing in the MAC address table?1) The switch updates the refresh timer for the entry.2) The switch forwards the frame out of the specified port.3) The switch purges the entire MAC address table.4) The switch replaces the old entry and uses the more current port.

Answer:

2) The switch forwards the frame out of the specified port.

Question 8: 5) 2682112

Answer:

Refer to the exhibit. What is the metric to forward a data packet with the IPv6 destination address

2001:DB8:ACAD:E:240:BFF:FED4:9DD2?

1) 90

2) 128

3) 2170112

4) 2681856

5) 2682112

6) 3193856

Question 9: What would be the primary reason an attacker would launch a MAC address overflow attack?1) so that the switch stops forwarding traffic 2) so that legitimate hosts cannot obtain a MAC address 3) so that the attacker can see frames that are destined for other hosts 4) so that the attacker can execute arbitrary code on the switch

Answer:

3) so that the attacker can see frames that are destined for other hosts Question 10: To obtain an overview of the spanning tree status of a switched network, a network engineer issues the show spanning-tree command on a switch. Which two items of information will this command display? (Choose two.) 1) The root bridge BID.2) The role of the ports in all VLANs.3) The status of native VLAN ports.4) The number of broadcasts received on each root port.5) The IP address of the management VLAN interface.

Answer:

1) The root bridge BID.

2) The role of the ports in all VLANs.