Module 7-9

A DHCP-enabled client PC has just booted. During which two steps will the client PC use broadcast when messages communicating with DHCP server? (Choose two.)

1.) DHCPDISCOVER 2.) DHCPREQUEST

The address pool of a DHCP server is configured with 10.92.71.0/25. The network administrator reserves 8 IP addresses for servers. How many IP addresses are left in the pool to be assigned to other hosts?

118

Refer to the exhibit. A network engineer is troubleshooting host connectivity on a LAN that uses a first hop redundancy protocol. Which IPV4 gateway address should be configured on the host?

192.168.2.100

Which protocol automates assignment of IP addresses on a network, and which port number does it use? (Choose two.)

DHCP- 67

Match the FHRP protocols to the appropriate description. (Not all options are used.) a Cisco proprietary FHRP that provides load sharing in addition to redundancy

GLBP

What protocol can be configured on gateway routers RI and R2 that will allow traffic from the internal LAN to be load balanced across the two gateways to the Internet?

GLBP

Which FHRP implementation is a Cisco-proprietary protocol that suppports IPv4 load sharing?

GLBP

Match the FHRP protocols to the appropriate description. (Not all options are used.) a Cisco proprietary FHRP that provides redundancy through use of an active device and standby device

HSRP

A network administrator is analyzing the features that are supported by different first-hop router redundancy protocols. Which statement describes a feature that is associated with HSRP?

HSRP uses active and standby routers.

a Cisco-proprietary protocol that is designed to allow for transparent failover of a first-hop IPV4 device.

Hot Standby Router Protocol (HSRP)

Refer to the exhibit. Which destination MAC address is used when frames are sent from the workstation to the default gateway?

MAC address of the virtual router

A client device on an Ethernet segment needs an IP address in order to communicate on the network. A DHCP server with IP address 192.168.1.1 has been configured and enabled on the network. How will a client device obtain a usable IP address for this network?

Send a DHCPDISCOVER message to physical address FF-FF-FF-FF-FF- FF.

When a client is requesting an initial address lease from a DHCP server, why is the DHCPREQUEST message sent as a broadcast?

The client may have received offers from multiple servers, and the broadcast serves to implicitly decline those other offers.

What is one indication that a Windows computer did not receive an IPV4 address from a DHCP server?

The computer receives an IP address that starts with 169.254.

After a host has generated an IPV6 address by using the DHCPV6 or SLAAC how does the host verify that process, the address is unique and therefore usable?

The host sends an ICMPV6 neighbor solicitation message to the DHCP or SLAAC-learned address and if no neighbor advertisement is returned, the address is considered unique.

What is a result when the DHCP servers are not operational in a network?

Workstations are assigned with IP addresses in the 169.254.0.0/16 network.

Refer to the exhibit. PC-A is unable to receive an IPV6 address from the stateful DHCPV6 server. What is the problem?

The ipv6 dhcp relay command should be applied to interface Gig0/0.

Refer to the exhibit. A network administrator is implementing the stateless DHCPV6 operation for the Clients are configuring IPV6 company. addresses as expected. However, the clients are not getting the DNS server address and the domain name information configured in the DHCP pool. What could be the cause of the problem?

The router is configured for SLAAC operation.

Which DHCPV4 will a client message send to accept an IPV4 address that is offered by a DHCP server?

broadcast DHCPREQUEST

An administrator issues the commands: What is the administrator trying to achieve?

configuring the router to obtain IP parameters from a DHCPV4 server

What is the reason that an ISP commonly assigns a DHCP address to a wireless router in a SOHO environment?

easy IP address management

Which command, when issued in the interface configuration mode of a router, enables the interface to acquire an IPV4 address automatically from an ISP, when that link to the ISP is enabled?

ip address dhcp

What information can be verified through the show ip dhcp binding command?

the IPV4 addresses that are assigned to hosts by the DHCP server

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

A host PC is attempting to lease an address through DHCP. What is message sent by the server to let the client know it is able to use the provided IP information?

DHCPACK

Calculate the maximum number of hosts available for the slash value and subtract the required static IP addresses required for the devices.

/24 = 254 hosts /25 = 126 hosts /26 = 62 hosts /27 = 30 hosts /28 = 14 hosts

Refer to the exhibit. 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 Fa0/0.

Match each DHCP message type with its description. (Not all options are used.) the DHCP server confirming that the address lease has been accepted

DHCPACK

Match the purpose with its DHCP message type. (Not all options are used.) a message that is used to acknowledge that the lease is successful

DHCPACK

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

A stateless DHCPV6 client would send a DHCPV6 _________________ message as step 3 in the process.

INFORMATION-REQUEST

Which FHRP implementation is a nonproprietary protocol which relies on ICMP to provide IPV4 redundancy?

IRDP

What is an advantage of configuring a Cisco router as a relay agent?

It can provide relay services for multiple UDP services.

Which statement describes HSRP?

It is used within a group of routers for selecting an active device and a standby device to provide gateway services to a LAN.

A network administrator configures a router to send RA with M flag messages as O and O 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.

Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. What is the keyword that is displayed on www.netacad.com?

Router

A small coffee shop is offering free Wi- Fi to customers. The network includes a wireless router and a DSL modem that is connected to the local phone company. What method is typically used to configure the connection to the phone company?

Set the WAN connection in the wireless router as a DHCP client.

Match the descriptions to the corresponding DHCPV6 server type. (Not all options are used.) enabled on the client with the ipv6 address dhcp command

Stataful DHCPV6 Target

Match the DHCP message types to the order of the stateful DHCPV6 process when a client first connects to an IPV6 network. (Not all options are used.) DHCPV6 REQUEST

Step 3

Match the DHCP message types to the order of the DHCPV4 process. (Not all options are used.) DHCPACK

Step 4

Match the DHCP message types to the order of the stateful DHCPV6 process when a client first connects to an IPV6 network. (Not all options are used.) DHCPv6 REPLY

Step 4

What is the result of a network technician issuing the command ip dhcp excluded-address 10.0.15.1 10.0.15.15 on a Cisco router?

The Cisco router will exclude 15 IP addresses from being leased to DHCP clients.

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?

The state is not maintained by the DHCPV6 server under stateless DHCPV6 operation.

Which statement is true about DHCP operation?

When a device that is configured to use DHCP boots, the client broadcasts a DHCPDISCOVER message to identify any available DHCP servers on the network.

Which DHCP IPV4 contains message the following information?

DHCPDISCOVER

The address pool of a DHCP server is configured with 192.168.234.0/27. The network administrator reserves 22 IP addresses for IP phones. How IP many addresses are left in the pool to be assigned to other hosts?

8

Match each DHCP message type with its description. (Not all options are used.) a DHCP server responding to the initial request by a client

DHCPDISCOVER

Match the purpose with its DHCP message type. (Not all options are used.) a message that is used to locate any available DHCP server on a network

DHCPDISCOVER

Place the options in the following order: 1.) a client initiating a message to find a DHCP server

DHCPDISCOVER

The __________________ message is used to identify any DHCP servers on a network.

DHCPDISCOVER

The broadcast _________________ message finds DHCPV4 servers on the network.

DHCPDISCOVER

When the DHCPV4 server receives a ___________________ message, it reserves an available IPV4 address to lease to the client and sends the unicast

DHCPDISCOVER

The ________________ message is used when an offered lease is no longer valid.

DHCPNAK

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 UP. 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 the obtain the information.

R1(config)# ipv6 unicast-routing

Match the descriptions to the corresponding DHCPV6 server type. (Not all options are used.) the M flag is set to 1 in RA messages

Stataful DHCPV6 Target

Match the descriptions to the corresponding DHCPV6 server type. (Not all options are used.) uses the address command to create a pool ON addresses for clients

Stataful DHCPV6 Target

DHCP message types to the order of the DHCPV4 process. (Not all options are used.) DHCPDISCOVER

Step 1

Which kind of is sent by a message DHCP client when its IP address lease has expired?

a DHCPREQUEST unicast message

Which does an IPV4 host use message to reply when it receives a DHCPOFFER message from a DHCP server?

DHCPREQUEST

On receiving the __________________ message the server replies with a unicast _________________ message.

DHCPREQUEST DHCPACK

Which FHRP implementation is a nonproprietary IPV4-only election protocol with limited scalability?

VRRPV2

Refer to the exhibit. PCI is configured to obtain a dynamic IP address from the DHCP server. PCI has been shut down for two weeks. When PCI boots and tries to request an available IP address, which destination IP address will PC1 place in the IP header?

255.255.255.255

A company uses DHCP to manage IP address deployment for employee workstations. The IT department deploys multiple DHCP servers in the data center and uses DHCP relay agents to facilitate the DHCP requests from workstations. Which two UDP ports are used to forward DHCP traffic? (Choose two.)

67 68

Place the options in the following order: 4.) the DHCP server confirming that the lease has been accepted

DHCPACK

The _________________ message is used by a server to finalize a successful lease with a client.

DHCPACK

Match each DHCP message type with its description. (Not all options are used.) a DHCP server responding to the initial request by a client

DHCPOFFER

Match the purpose with its DHCP message type. (Not all options are used.) a message that is used to suggest a lease to client

DHCPOFFER

Place the options in the following order: 2.) a DHCP server responding to the initial request by a client

DHCPOFFER

The _________________ message is used by a server to offer a lease to a client.

DHCPOFFER

When the client receives the _________________ from the server, it sends back a _______________ .

DHCPOFFER DHCPREQUEST.

_____________ and _______________ are DHCPV6 messages.

DHCPREPLY DHCPINFORMATION-REQUEST

Match each DHCP message type with its description. (Not all options are used.) the client accepting the IP address provided by the DHCP server

DHCPREQUEST

Match the purpose with its DHCP message type. (Not all options are used.) a message that is used to identify the explicit server and lease offer to accept

DHCPREQUEST

Place the options in the following order: 3.) the client accepting the IP address provided by the DHCP server

DHCPREQUEST

The _________________ message is used to identify both the specific DHCP server and the lease that the client is accepting.

DHCPREQUEST

Which command will allow a network administrator to check the IP address that is assigned to a particular MAC address?

Router# show ip dhcp binding

Match the FHRP protocols to the appropriate description. (Not all options are used.) an open standard FHRP that provides redundancy through use of a virtual routers master and one or more backups

VRRP

Match the descriptions to the corresponding DHCPV6 server type. (Not all options are used.) clients send only DHCPV6 INFORMATION REQUEST messages to the server d

Stateless DHCPV6 Target

Match the descriptions to the corresponding DHCPV6 server type. (Not all options are used.) enabled in RA messages with the ipv6 nd other-config-flag command

Stateless DHCPV6 Target

Match the descriptions to the corresponding DHCPV6 server type. (Not all options are used.) enabled on the client with the ipv6 address autoconfig command

Stateless DHCPV6 Target

Match the DHCP message types to the order of the stateful DHCPV6 process when a client first connects to an IPV6 network. (Not all options are used.) DHCPv6 SOLICIT

Step 1

Match the DHCP message types to the order of the DHCPV4 process. (Not all options are used.) DHCPOFFER

Step 2

Match the DHCP message types to the order of the stateful DHCPV6 process when a client first connects to an IPV6 network. (Not all options are used.) DHCPv6 ADVERTISE

Step 2

Match the DHCP message types to the order of the DHCPV4 process. (Not all options are used.) DHCPREQUEST

Step 3

Refer to the exhibit. A network administrator is configuring a router for DHCPV6 operation. Which conclusion can be drawn based on the commands?

The router is configured for stateless DHCPV6 operation.

Refer to the exhibit. Based on the output that is shown, what kind of IPV6 addressing is being configured?

stateless DHCPV6

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