CCNA 2 v7 - NetAcad Modules 7-9 Questions

MODULE 7

MODULE 7

Which message is sent by a DHCPv4 client to initiate the lease obtaining process?

A. DHCPDISCOVER

B. DHCPOFFER

C. DHCPREQUEST

D. DHCPACK

A. DHCPDISCOVER

Which two DHCPv4 messages are sent by the server in the lease obtaining process? (Choose two.)

A. DHCPDISCOVER

B. DHCPOFFER

C. DHCPREQUEST

D. DHCPACK

B. DHCPOFFER

Which two DHCPv4 messages are used in the lease renewal process? (Choose two.)

A. DHCPDISCOVER

B. DHCPOFFER

C. DHCPREQUEST

D. DHCPACK

C. DHCPREQUEST
D. DHCPACK

Provide the commands required to complete DHCPv4 pool configuration based on these steps:

1. Define the address pool.

2. Define the default router or gateway.

3.Define a DNS server

4.Define the domain name.

5. Define the duration of the DHCP lease.

6. Define the NetBIOS WINS server.

1. network network-number [mask | / prefix-length]

2. default-router

address [ address2….address8]

3. dns-server address [ address2…address8]

4. domain-name domain

5. lease {days [hours [ minutes]] | infinite}

6. netbios-name-server address [ address2…address8]

How can you disable DHCPv4 on a server?

Use the command no service dhcp

What 8 UDP services are forwarded using the ip helper-address command?

Port 37: Time
Port 49: TACACS
Port 53: DNS
Port 67: DHCP/BOOTP server
Port 68: DHCP/BOOTP client
Port 69: TFTP
Port 137: NetBIOS name service
Port 138: NetBIOS datagram service

An administrator issues the commands:

Router(config)# interface g0/1

Router(config-if)# ip address dhcp

What is the administrator trying to achieve?

A. Configuring the router to obtain IP parameters from a DHCPv4 server

B. Configuring the router to act as a relay agent

C. Configuring the router to act as a DHCPv4 server

D. Configuring the router to resolve IP address conflicts

A. Configuring the router to obtain IP parameters from a DHCPv4 server

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

A. DHCP server may be on a different subnet, so the request must be sent as a broadcast.

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

C. The client does not yet know the IP address of the DHCP server that sent the offer.

D. The client does not have a MAC address assigned yet, so it cannot send a unicast message at Layer 2.

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

Which DHCP IPv4 message contains the following information?

Destination address: 255.255.255.255

Client IPv4 address: 0.0.0.0

Default gateway address: 0.0.0.0Subnet mask: 0.0.0.0

A. DHCPDISCOVER

B. DHCPOFFER

C. DHCPREQUEST

D. DHCPACK

A. DHCPDISCOVER

What kind of message is sent by a DHCPv4 client requesting an IP address?

A. DHCPOFFER unicast message

B. DHCPACK unicast message

C. DHCPDISCOVER unicast message

D. DHCPDISCOVER broadcast message

D. DHCPDISCOVER broadcast message

As a DHCPv4 client lease is about to expire, what is the message that the client sends the DHCP server?

A. DHCPDISCOVER

B. DHCPOFFER

C. DHCPREQUEST

D. DHCPACK

C. DHCPREQUEST

What is the destination IP address when an IPv4 host sends a DHCPDISCOVER message?

A. 224.0.0.1

B. 192.168.1.1

C. 255.255.255.255

D. 0.0.0.0

C. 255.255.255.255

If more than one DHCP server is available on the local network, in which order will DHCP messages be sent between a host and a DHCP server?

A. discover, offer, request, acknowledgment

B. request, acknowledgment, discover, offer

C. request, discover, offer, acknowledgment

D. acknowledgment, request, offer, discover

A. discover, offer, request, acknowledgment

What is the most likely scenario in which the WAN interface of a router would be configured as a DHCP client to be assigned a dynamic IP address from an ISP?

A. The router is configured as a DHCP server.

B. The router is also the gateway for a LAN.

C. It is a SOHO or home broadband router.

D. There is a web server for public access on the LAN that is attached to the router.

C. It is a SOHO or home broadband router.

Which is a DHCPv4 address allocation method that assigns IPv4 addresses for a limited lease period?

A. pre-allocation

B. dynamic allocation

C. automatic allocation

D. manual allocation

B. dynamic allocation

What is the reason why the DHCPREQUEST message is sent as a broadcast during the DHCPv4 process?

A. for routers to fill their routing tables with this new information

B. to notify other DHCP servers on the subnet that the IP address was leased

C. for hosts on other subnets to receive the information

D. to notify other hosts not to request the same IP address

B. to notify other DHCP servers on the subnet that the IP address was leased

How is a DHCPDISCOVER transmitted on a network to reach a DHCP server?

A. A DHCPDISCOVER message is sent with the broadcast IP address as the destination address.

B. A DHCPDISCOVER message is sent with a multicast IP address that all DHCP servers listen to as the destination address.

C. A DHCPDISCOVER message is sent with the IP address of the default gateway as the destination address.

D. A DHCPDISCOVER message is sent with the IP address of the DHCP server as the destination address.

A. A DHCPDISCOVER message is sent with the broadcast IP address as the destination address.

Which destination IPv4 address does a DHCPv4 client use to send the initial DHCP Discover packet when the client is looking for a DHCP server?

A. 224.0.0.1

B. 127.0.0.1

C. 255.255.255.255

D. the IP address of the default gateway

C. 255.255.255.255

Under which two circumstances would a router usually be configured as a DHCPv4 client? (Choose two.)

A. The router has a fixed IP address.

B. This is an ISP requirement.

C. The administrator needs the router to act as a relay agent.

D. The router is intended to be used as a SOHO gateway.

E. The router is meant to provide IP addresses to the hosts.

B. This is an ISP requirement.
D. The router is intended to be used as a SOHO gateway.

Which address does a DHCPv4 server target when sending a DHCPOFFER message to a client that makes an address request?

A. client IP address

B. client hardware address

C. broadcast MAC address

D. gateway IP address

B. client hardware address

Which address type is automatically created by default on a host interface when no RAs are received?

A. global unicast address

B. link-local address

C. MAC address

B. link-local address

MODULE 8

MODULE 8

Which method best describes stateless DHCP?

A. SLAAC only

B. SLAAC with stateless DHCPv6 Server

C. Stateful DHCPv6 Server

B. SLAAC with stateless DHCPv6 Server

Which two ICMPv6 messages are used in the SLAAC process? (Choose two.)

A. Neighbor Advertisements (NA)

B. Neighbor Solicitation (NS)

C. Router Solicitation (RS)

D. Router Advertisements (RA)

C. Router Solicitation (RS)
D. Router Advertisements (RA)

Which command must be configured on a router to enable it to join the IPv6 all-routers multicast address ff02::2?

A. ip routing

B. ipv6 unicast-routing

C. ipv6 address ipv6-address/prefix-length

D. ipv6 address ipv6-address link-local

B. ipv6 unicast-routing

What are the flag settings when a host should use the SLAAC only option?

A. A=1, M=0, O=0

B. A=1, M=1, O=0

C. A=1, M=0, O=1

D. A=0, M=1, O=1

A. A=1, M=0, O=0

Which ICMPv6 message is sent by a host in an attempt to locate an online IPv6enabled router to obtain IPv6 addressing information?

A. Neighbor Advertisements (NA)

B. Neighbor Solicitation (NS)

C. Router Solicitation (RS)

D. Router Advertisements (RA)

C. Router Solicitation (RS)

What method is used by a host to verify an IPv6 address is unique on the local network before assigning that address to an interface?

A. ARP

B. DAD

C. PING

D. SLAAC

B. DAD

What are the SLAAC Only flags?

The SLAAC only method is enabled by default when the ipv6 unicast-routing command is configured. All enabled Ethernet interfaces with an IPv6 GUA configured will start sending RA messages with the A flag set to 1, and the O and M flags set to 0, as shown in the figure.

The A = 1 flag suggests to the client that it create its own IPv6 GUA using the prefix advertised in the RA. The client can create its own Interface ID using either Extended Unique Identifier method (EUI-64) or have it randomly generated.

The O =0 and M=0 flags instruct the client to use the information in the RA message exclusively. The RA includes the prefix, prefix-length, DNS server, MTU, and default gateway information. There is no further information available from a DHCPv6 server.

What UDP port do DHCPv6 clients use to send DHCPv6 messages?

A. 67

B. 68

C. 546

D. 547

C. 546

What DHCPv6 message does a host send to look for a DHCPv6 server?

A. ADVERTISE

B. SOLICIT

C. INFORMATION-REQUEST

D. REQUEST

B. SOLICIT

What DHCPv6 message does a host send to the DHCPv6 server if it is using stateful DHCPv6?

A. ADVERTISE

B. SOLICIT

C. INFORMATION-REQUEST

D. REQUEST

D. REQUEST

What flag settings combination is used for stateless DHCP?

A. A=1, M=0 O=0

B. A=0, M=1, O=0

C. A=1, M=O, O=1

D. A=0, M=1, O=1

C. A=1, M=O, O=1

What M flag setting indicates that stateful DHCPv6 is used?

A. M=0

B. M=1

B. M=1

What do the DHCPv6 server, client, and relay agent services provide?

DHCPv6 Server - Router provides stateless or stateful DHCPv6 services.

DHCPv6 Client - Router interface acquires an IPv6 IP configuration from a DHCPv6 server.

DHCPv6 Relay Agent - Router provides DHCPv6 forwarding services when the client and the server are located on different networks.

Which three DHCPv6 roles can a router perform? (Choose all that apply.)

A. DHCPv6 client

B. DHCPv6 relay agent

C. DHCPv6 server

A. DHCPv6 client
B. DHCPv6 relay agent
C. DHCPv6 server

Which command is not configured in stateless DHCPv6?

A. address prefix ipv6-address/prefix

B. domain-name name

C. dns-server server-address

D. ipv6 dhcp server pool-name

A. address prefix ipv6-address/prefix

An IPv6-enabled router is to acquire its IPv6 GUA from another IPv6 router using SLAAC. Which interface configuration command should be configured on the client router?

A. ipv6 address autoconfig

B. ipv6 address auto config

C. ipv6 address dhcp

D. ipv6 address dhcpv6

A. ipv6 address autoconfig

A router is to provide DHCPv6 server services. Which command should be configured on the client facing interface?

A. ipv6 enable

B. ipv6 dhcp pool POOL-NAME

C. ipv6 dhcp server POOL-NAME

D. ipv6 nd other-config-flag

C. ipv6 dhcp server POOL-NAME

An IPv6-enabled router is to acquire its IPv6 GUA from a DHCPv6 server. Which interface configuration command should be configured on client router?

A. ipv6 address autoconfig

B. ipv6 address auto config

C. ipv6 address dhcp

D. ipv6 address dhcpv6

C. ipv6 address dhcp

Which DHCPv6 verification command would display the link-local and GUA assigned address for each active client?

A. show ip dhcp pool

B. show ipv6 dhcp binding

C. show ipv6 dhcp interface

D. show ipv6 dhcp pool

B. show ipv6 dhcp binding

Which command is configured on the client LAN interface of the DHCPv6 relay agent?

A. ip helper-address

B. ipv6 dhcp relay destination

C. ipv6 enable

D. ipv6 helper-address

B. ipv6 dhcp relay destination

How does an IPv6 client ensure that it has a unique address after it configures its IPv6 address using the SLAAC allocation method?

A. It sends an ARP message with the IPv6 address as the destination IPv6 address.

B. It contacts the DHCPv6 server via a special formed ICMPv6 message.

C. It sends an ICMPv6 Neighbor Solicitation message with the IPv6 address as the target IPv6 address.

D. It checks with the IPv6 address database that is hosted by the SLAAC server.

C. It sends an ICMPv6 Neighbor Solicitation message with the IPv6 address as the target IPv6 address.

Which method would an IPv6-enabled host using SLAAC employ to learn the address of the default gateway?

A. router advertisements that are received from the link router

B. reply messages that are received from the DHCPv6 server

C. advertise messages that are received from the DHCPv6 server

D. neighbor advertisements that are received from link neighbors

A. router advertisements that are received from the link router

What two methods can be used to generate an interface ID by an IPv6 host that is using SLAAC? (Choose two.)

A. EUI-64

B. stateful DHCPv6

C. ARP

D. random generation

E. DAD

A. EUI-64
D. random generation

A client is using SLAAC to obtain an IPv6 address for its interface. After an address has been generated and applied to the interface, what must the client do before it can begin to use this IPv6 address?

A. It must send an ICMPv6 Router Solicitation message to determine what default gateway it should use.

B. It must send a DHCPv6 REQUEST message to the DHCPv6 server to request permission to use this address.

C. It must send an ICMPv6 Neighbor Solicitation message to ensure that the address is not already in use on the network.

D. It must send a DHCPv6 INFORMATION-REQUEST message to request the address of the DNS server.

C. It must send an ICMPv6 Neighbor Solicitation message to ensure that the address is not already in use on the network.

Which command should be configured on a router interface to set the router as a stateful DHCPv6 client?

A. ipv6 address autoconfigure

B. ipv6 enable

C. ipv6 address dhcp

D. ipv6 dhcp server stateful

C. ipv6 address dhcp

What message informs IPv6 enabled interfaces to use stateful DHCPv6 for obtaining an IPv6 address?

A. the DHCPv6 Reply message

B. the DHCPv6 Advertise message

C. the ICMPv6 Router Solicitation

D. the ICMPv6 Router Advertisement

D. the ICMPv6 Router Advertisement

Which destination IP address is used when an IPv6 host sends a DHCPv6 SOLICIT message to locate a DHCPv6 server?

A. FF02::2

B. FE80::1

C. FF02::1

D. FF02::1:2

D. FF02::1:2

In which alternative to DHCPv6 does a router dynamically provide IPv6 configuration information to hosts?

A. ICMPv6

B. SLAAC

C. ARP

D. EUI-64

B. SLAAC

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 service, which message does it send to a server for configuration information?

A. DHCPv6 REQUEST

B. DHCPv6 INFORMATION-REQUEST

C. DHCPv6 ADVERTISE

D. DHCPv6 SOLICIT

B. DHCPv6 INFORMATION-REQUEST

What process is used in ICMPv6 for a host to verify that an IPv6 address is unique before configuring it on an interface?

A. EUI-64

B. DAD

C. ARP

D. SLAAC

B. DAD

What are two characteristics of the SLAAC method for IPv6 address configuration? (Choose two.)

A. Clients send router advertisement messages to routers to request IPv6 addressing.

B. The default gateway of an IPv6 client on a LAN will be the link-local address of the router interface attached to the LAN.

C. IPv6 addressing is dynamically assigned to clients through the use of ICMPv6.

D. Router solicitation messages are sent by the router to offer IPv6 addressing to clients.

E. This stateful method of acquiring an IPv6 address requires at least one DHCPv6 server.

B. The default gateway of an IPv6 client on a LAN will be the link-local address of the router interface attached to the LAN.
C. IPv6 addressing is dynamically assigned to clients through the use of ICMPv6.

After booting, a client receives an ICMPv6 RA message with the M flag set to 0 and the O flag set to 1. What does this indicate?

A. The client should request an IPv6 address directly from a DHCPv6 server.

B. The client should automatically configure an IPv6 address without contacting a DHCPv6 server.

C. The client should automatically configure an IPv6 address and then contact a DHCPv6 server for more information.

D. The client should be statically configured with an IPv6 address because the local router does not support autoconfiguration.

C. The client should automatically configure an IPv6 address and then contact a DHCPv6 server for more information.

A network administrator is entering the command ipv6 unicast-routing to start configuring DHCPv6 operation on a router. Which statement describes the function of this command?

A. It is required to configure stateless DHCPv6 server on the router.

B. It is required for enabling DNS service in DHCPv6 configurations.

C. It is required for sending ICMPv6 RA messages.

D. It is required to configure stateful DHCPv6 server on the router.

C. It is required for sending ICMPv6 RA messages.

MODULE 9

MODULE 9

What type of device routes traffic destined to network segments beyond the source network segment for which the sending node may not have explicit routing information?

A. virtual router

B. standby router

C. default gateway

D. L3 switch

C. default gateway

What device presents the illusion of a single router to hosts on a LAN segment but actually represents a set of routers working together?

A. virtual router

B. forwarding router

C. default gateway

D. L3 switch

A. virtual router

What device is part of a virtual router group assigned the role of alternate default gateway?

A. virtual router

B. standby router

C. default gateway

D. L3 switch

B. standby router

What device that is part of a virtual router group assigned to the role of default gateway?

A. virtual router

B. forwarding router

C. default gateway

D. L3 switch

B. forwarding router

Which FHRPs are Cisco-proprietary? (Choose two.)

A. IRDP

B. HSRP

C. HSRP for IPv6

D. VRRPv2

B. HSRP
C. HSRP for IPv6

What is the default HSRP priority?

A. 50

B. 100

C. 150

D. 255

B. 100

True or False? If a router with a higher HSRP priority joins the network, it will take over the active router roll from an existing active router which has a lower priority.

A. True

B. False

B. False

During which HSRP state does an interface begin sending periodic hello messages?

A. initial

B. listen

C. speak

D. active

C. speak

Which is a characteristic of the HSRP learn state?

A. the router has not determined the virtual IP address

B. the router knows the virtual IP address

C. the router sends periodic hello messages

D. the router actively participates in the active/standby election process

A. the router has not determined the virtual IP address

What is the purpose of HSRP?

A. It prevents a rogue switch from becoming the STP root.

B. It prevents malicious hosts from connecting to trunk ports.

C. It enables an access port to immediately transition to the forwarding state.

D. It provides a continuous network connection when a router fails.

D. It provides a continuous network connection when a router fails.

Which nonproprietary protocol provides router redundancy for a group of routers which support IPv4 LANs?

A. VRRPv2

B. SLB

C. HSRP

D. GLBP

A. VRRPv2

What is a potential disadvantage when implementing HSRP as compared to GLBP?

A. HSRP does not function in a multivendor environment.

B. HSRP does not have the capability to support IPv6 addresses.

C. HSRP does not provide load balancing with multiple active routers.

D. HSRP provides default gateway failover only when the active router fails.

C. HSRP does not provide load balancing with multiple active routers.

A network engineer is configuring a LAN with a redundant first hop to make better use of the available network resources. Which protocol should the engineer implement?

A. HSRP

B. FHRP

C. GLBP

D. VRRP

C. GLBP

In FHRP terminology, what represents a set of routers that present the illusion of a single router to hosts?

A. standby router

B. virtual router

C. default gateway

D. forwarding router

B. virtual router

When first hop redundancy protocols are used, which two items will be shared by a set of routers that are presenting the illusion of being a single router? (Choose two.)

A. BID

B. static route

C. MAC address

D. IP address

E. hostname

C. MAC address
D. IP address

A user needs to add redundancy to the routers in a company. What are the three options the user can use? (Choose three.)

A. GLBP

B. VRRP

C. STP

D. IPFIX

E. HSRP

F. RAID

A. GLBP
B. VRRP
E. HSRP

Which two protocols provide gateway redundancy at Layer 3? (Choose two.)

A. VRRP

B. RSTP

C. STP

D. PVST

E. HSRP

A. VRRP
E. HSRP

A network administrator is overseeing the implementation of first hop redundancy protocols. Which two protocols are Cisco proprietary? (Choose two.)

A. VRRP

B. GLBP

C. IRDP

D. HSRP

E. VRRPv2

B. GLBP
D. HSRP

Which statement describes a characteristic of GLBP?

A. It provides load balancing for a maximum of four gateways.

B. It provides multiple virtual IP addresses and multiple virtual MAC addresses.

C. It provides automatic rerouting if any router in the group fails.

D. It does not provide support for IPv6.​

C. It provides automatic rerouting if any router in the group fails.

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

A. It works together with VRRP.

B. It uses a virtual router master.

C. It is nonproprietary.

D. GLBP allows load balancing between routers.

D. GLBP allows load balancing between routers.