CCNA2 Chapter 10 Exam
1. Which DHCPv4 message will a client send to accept an IPv4 address that is offered by a DHCP server?
Broadcast DHCPREQUEST
17. A network administrator is implementing DHCPv6 for the company. The administrator configures a router to send RA messages with M flag as 1 by using the interface command ipv6 nd managed -config-flag. What effect will this configuration have on the operation of the clients?
Clients must use all configuration information that Is provided by a DHCPv6 server.
22. Order the steps of the configuring a router as a DHCPv6 server.
Configure the routing protocol Configure a secret password.
6. An administrator issues the commands: Router(config)# interface g0/1 Router(config-if)# ip address dhcp What is the administrator trying to achieve?
Configuring the router to obtain IP parameters from a DHCPv4 server
8. A network engineer is troubleshooting hosts on a LAN that are not being assigned an IPv4 address from a DHCP server after a new Ethernet switch has been installed on the LAN. The configuration of the DHCP server has been confirmed as correct and the clients have network connectivity to other networks if a static IP address is configured on each one. What step should the engineer take next to solve the issue?
Confirm that ports on the layer 2 LAN switch are configured as edge ports
13. A company implements the stateless DHCPv6 method for configuring IPv6 addresses on employee workstations. After a workstation receives messages from multiple DHCPv6 servers to indicate their availability for DHCPv6 servers which message does it send to a server for configuration information?
DHCPv6 INFORMATION-REQUEST
3. Which is a DHCPv4 address allocation method that assigns IPv4 addresses for a limited lease period?
Dynamic allocation
15. Which protocol supports Stateless Address Auto configuration (SLAAC) for dynamic assignment of IPv6 addresses to a host?
ICMPv6
5. Which set of commands will configure a router as a DHCP server that will assign IPv4 addresses to the 192.168.100.0/23 LAN while reserving the first 10 and the last addresses for static assignment?
Ip DHCP excluded-address 192.168.100.1 192.168.100.10 Ip dhcp excluded-address 192.168.101.254 Ip dhcp pool LAN-POOL-100 Network 192.168.100.0 255.255.254.0 Default-router 192.168.100.1
9. A host on the 10.10.100.0/24 LAN is not being assigned an IPv4 address by an enterprise DHCP server with the address 10.10.200.10/24. What is the best way for the network engineer to resolve this problem?
Issue the command ip helper-address 10.10.200.10 on the router interface that is the 10.10.100.0/24 gateway
12. A network administrator configures a router to send RA messages with M flag as 0 and 0 flag as 1. Which statement describes the effect of this configuration when a PC tries to configure its IPv6 address?
It should use the information that is contained in the RA message and contact a DHCPv6 server for additional information.
10. A company uses the method SLAAC to configure IPv6 addresses for the workstations of the employees. A network administrator configured the IPv6 address on the LAN interface of the router. The interface status is IP. However, the workstations on the LAN segment did not obtain the correct prefix and prefix length. What else should be configured on the router that is attached to the LAN segment for the workstations to obtain the information?
R1(config)# ipv6 unicast-routing
21. Type a command to exclude the first fifteen useable IP addresses from a DHCPv4 address pool of network 10.0.15.0/24
Router(config)# ip dhcp Excluded-address 10.0.15.1 10.0.15.15
11. A company uses the SLAAC method to configure IPv6 addresses for the employee workstations. Which address will a client use as its default gateway?
The link-local address of the router interface that is attached to the network
14. An administrator wants to configure hosts to automatically assign IPv6 addresses to themselves by the use of Router Advertisement messages, but also to obtain the DNS server address from DHCPv6 server. Which address assignment method should be configured
Stateless DHCPv6
16. Based on the output that is shown, what kind of IPv6 addressing is being configured
Stateless DHCPv6
23. Match the descriptions to the corresponding DHCPv6 server type.
Stateless DHCPv6: Enabled in RA messages with the ipv6 nd other-config-flag command Clients send only DHCPv6 INFORMATION-REQUEST messages to the server Enabled on the client with the IPv6 address dhcp command Stateful DHCPv6: The M flag is set to 1 in RA messages Uses the address command to create a pool of addresses for clients Enabled on the client with the ipv6 address autoconfig command
24. How many IP addresses has the DHCP server leased and what is the number of DHCP pools configured?
Three leases One pool
4. What is the reason why the DHCPREQUEST message is sent as a broadcast during the DHCPv4 process?
To notify other DHCP servers on the subnet that the IP address was leased
18. What should be done to allow PC-A to receive an IPv6 address from the DHCPv6 server?
Add the ipv6 dhcp relay command to interface g0/0
2. A company uses DHCP servers to dynamically assign IPv4 addresses to employee workstations. The address lease duration is set as 5 days. An employee returns to the office after an absence of one week. When the employee boots the workstation, it sends a message to obtain an IP address. Which Layer 2 and Layer 3 destination addresses will the message contain?
FF-FF-FF-FF-FF-FF and 255.255.255.255
20. A network administrator is implementing the stateless DHCPv6 operation for the company. Clients are configuring IPv6 addresses as expected, however, the clients are not getting the DNS server and the domain name information configured in the DHCP pool. What could be the cause of the problem?
The router is configured for SLAAC DHCPv6 operation
19. A network administrator is implementing stateful DHCPv6 operation for the company. However, the clients are not using the prefix and prefix-length information that is configured in the DHCP pool. The administrator issues a show ipv6 interface command. What could be the cause of the problem?
The router is configured for stateless DHCPv6 operation.
7. Under which two circumstances would a router usually be configured as a DHCPv4 client?
The router is intended to be used as a SOGO gateway. This is an ISP requirement