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Which protocol is automatically assigned in the network IP Address , Which port number does the protocol use ？ （ Choose two .）

DHCP

67

IPv4 The host is from DHCP The server received a DHCPOFFER news , Which of the following messages will it use to answer .

DHCPREQUEST

When issuing any command in the interface configuration mode of the router, you can go to ISP In case of link , Enable this interface to automatically from ISP obtain IPv4 Address ？

ip address dhcp

DHCP The client is in IP Which of the following messages is sent at the end of the address lease ？

DHCPREQUEST Unicast messages

In the network DHCP When the server is not running , What is the result ？

Assign 169.254.0.0/16 Network IP Address .

Windows The computer is not from DHCP Server received IPv4 What is a sign of the address ？

The computer received a message with 169.254 At the beginning IP Address .

In order to accept DHCP Provided by the server IPv4 Address , Which message should the client send DHCPv4 news ？

radio broadcast DHCPREQUEST

A small coffee shop is offering customers free Wi-Fi. This network includes a wireless router and a DSL modems ,DSL The modem is connected to the local telephone company . Which of the following methods is usually used to configure the connection to the phone company ？

Put... On the wireless router WAN Connection set to DHCP client .

The client device on the Ethernet segment needs a IP Address , To communicate in the network . Configured and enabled in the network IP The address is 192.168.1.1 Of DHCP The server . How will the client device get the availability of this network IP Address ？

send out DHCPDISCOVER Message to physical address FF-FF-FF-FF-FF-FF.

If the network technician sends a message on the Cisco router ip dhcp excluded-address 10.0.15.1 10.0.15.15 command , What will happen ？

Cisco router will exclude 15 One is to be rented to DHCP Client's IP Address .

What are the advantages of configuring Cisco routers as relay agents ？

Can be more UDP The service provides relay services .

The following is about DHCP Which of the statements about operation is correct ？

When configured to use DHCP When your device starts , The client will broadcast a DHCPDISCOVER news , To determine whether there are available on the network DHCP The server .

Company use SLAAC Method of configuring employee workstation IPv6 Address . The network administrator is in the router LAN Configuration on the interface IPv6 Address . The interface status is “UP”（ normal ）. however ,LAN The workstation of the network segment did not get the correct prefix and prefix length . In order for the workstation to obtain this information , It should also be connected to the workstation LAN What is the configuration of the router of the network segment ？

R1(config)# ipv6 unicast-routing

See illustration . What should be done to allow PC-A from DHCPv6 Server receive IPv6 Address ？

take ipv6 dhcp relay Add command to interface Fa0/0.

See illustration .PC-A Unable to receive from stateful DHCPv6 Server's IPv6 Address . What's the problem ？

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

See illustration . Network administrators are implementing stateless for the company DHCPv6 operation . The client is configuring as expected IPv6 Address . however , The client did not get DNS Server address and DHCP The domain name information configured in the pool . What may be the cause of the problem ？

The router is configured to SLAAC operation .

See illustration . The network administrator is configuring a router as a DHCPv6 Router . The administrator entered the command show ipv6 dhcp pool To verify the configuration . Which of the following statements can explain the active client （active client） The number of 0 Why ？

In no state DHCPv6 In operation , This state is not caused by DHCPv6 The server is maintained .

A network administrator is analyzing the functions supported by different first hop router redundancy protocols . Which of the following statements describes and HSRP Related functions ？

HSRP Use active and standby routers .

See illustration . Available in gateway router R1 and R2 What protocol is configured on , To allow for from within LAN Load balance the traffic , Make it arrive through two gateways Internet？

GLBP

See illustration . Network engineers are working on using the first hop Redundancy Protocol LAN Troubleshoot the problem of host connection . Which should be configured on the host IPv4 default gateway ？

192.168.2.100

See illustration . When the frame is sent from the workstation to the default gateway , What purpose is used MAC Address ？

Virtual router MAC Address

Which of the following FHRP The agreement is non private and pure IPv4 The election agreement , There is only one master router in each group ？

VRRPv2

DHCP The address pool of the server is configured 10.92.71.0/25. The administrator will 8 individual IP The address is reserved for the server . How many are there in the pool IP Addresses can be assigned to other hosts ？

118

Which of the following is true HSRP Correct description of ？

It will select an active device and a standby device in a group of routers , In order to provide Gateway Services for LAN .

Website www.netacad.com What are the keywords displayed in ？

Router

Company use DHCP The server dynamically assigns IPv4 Address . The lease term of the address is set to 5 God . The employee returns to the office after leaving for a week . When an employee starts the workstation , It sends a message to get IP Address . The message will contain the 2 Tier and tier 3 Which destination address of the layer ？

FF-FF-FF-FF-FF-FF and 255.255.255.255

Which of the following commands allows the network administrator to check the assignment to a specific MAC Address of the IP Address ？

Router# show ip dhcp binding

Which set of commands can be used to configure the router to DHCP Router , So that IPv4 The address is assigned to 192.168.100.0/23 LAN, At the same time, reserve the former for static allocation 10 And the last address ？

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

stay SOHO Environment , Which of the following is ISP Wireless routers are usually assigned DHCP The reason for the address ？

IP Address management is simpler

A company uses DHCP To manage employee workstations IP Address assignment .IT The Department has deployed multiple sets in the data center DHCP The server , And use DHCP Relay agent to simplify （ Forwarding ） From the workstation DHCP request . To forward DHCP Traffic , Which two of the following UDP port ？（ Choose two .）

68

67

adopt show ip dhcp binding What information can the command verify ？

DHCP The server is assigned to the host IPv4 Address

The network administrator configures the router to send M Mark is 0 and O Mark is 1 Of RA news . When PC Try to configure its IPv6 Address time , Which of the following statements correctly describes the role of this configuration ？

It should use RA The information contained in the message and contact DHCPv6 Server for additional information .

See illustration . The network administrator is configuring a router as a DHCPv6 Router . The administrator entered the command show ipv6 dhcp pool To verify the configuration . Which of the following statements can explain the active client （active client） The number of 0 Why ？

In no state DHCPv6 In operation , This state is not caused by DHCPv6 The server is maintained

Company use SLAAC Method of configuring employee workstation IPv6 Address . Which address will the client use as its default gateway ？

The local link address of the router interface connected to the network

See illustration . According to the output shown in the figure , Which is being configured IPv6 Addressing ？

No state DHCPv6

Which of the following FHRP The agreement is private to Cisco , Support at the same time IPv4 Load sharing ？

GLBP

DHCP The address pool of the server is configured 172.23.143.0/26. The administrator will 14 individual IP The address is reserved for the file server . How many are there in the pool IP Addresses can be assigned to other hosts ？

48

See illustration . The network administrator is working for DHCPv6 Operate and configure the router . What conclusions can be drawn from the order ？

2)]

See illustration . According to the output shown in the figure , Which is being configured IPv6 Addressing ？

No state DHCPv6

Which of the following FHRP The agreement is private to Cisco , Support at the same time IPv4 Load sharing ？

GLBP

DHCP The address pool of the server is configured 172.23.143.0/26. The administrator will 14 individual IP The address is reserved for the file server . How many are there in the pool IP Addresses can be assigned to other hosts ？

48

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See illustration . The network administrator is working for DHCPv6 Operate and configure the router . What conclusions can be drawn from the order ？

The router is configured as stateless DHCPv6 operation .