Module 7-9 SRWE

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

• DHCP

• DNS

• SMB

• 53

• 67

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

• 192.168.1.1

• 192.168.1.8

• 192.168.1.255

• 255.255.255.255

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

• both MAC and IPv4 addresses of the DHCP server

• MAC address of the DHCP server and 255.255.255.255

• FF-FF-FF-FF-FF-FF and IPv4 address of the DHCP server

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

• Router# show ip dhcp pool

• Router# show ip dhcp server statistics

• Router# show running-config I section_dhcp

Which message does an IPv4 host use to reply when it receives a DHCPOFFER message from a DHCP server?

• DHCPACK

• DHCPDISCOVER

• DHCPOFFER

• DHCPREQUEST

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 dhcp pool

• ip address dhcp

• service dhcp

• ip helper-address

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 192.168.100.254

  ip dhcp pool LAN-POOL-100

  network 192.168.100.0 255.255.255.0

  ip default-gateway 192.168.100.1

• 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

• dhcp pool LAN-POOL-100

  ip dhcp excluded-address 192.168.100.1 192.168.100.9

  ip dhcp excluded-address 192.168.100.254

  network 192.168.100.0 255.255.254.0

  default-router 192.168.101.1

• ip dhcp excluded-address 192.168.100.1 192.168.100.9

  ip dhcp excluded-address 192.168.101.254

  ip dhcp pool LAN-POOL-100

  ip network 192.168.100.0 255.255.254.0

  ip default-gateway 192.168.100.1

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

• a DHCPDISCOVER broadcast message

• a DHCPREQUEST broadcast message​

• DHCPREQUEST unicast message​

• a DHCPDISCOVER unicast message​

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

• DHCPDISCOVER

• DHCPOFFER

• DHCPREQUEST

• DHCPACK

• DHCPNACK

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

• Workstations are assigned with the IP address 0.0.0.0.

• Workstations are assigned with the IP address 127.0.0.1.

• Workstations are assigned with IP addresses in the 10.0.0.0/8 network.

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