A+ Core Certification Practice Questions

Resolving IP address conflict

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Q6. A technician observes that there is an IP address conflict on a PC, with another PC having the same IP address. The IP addresses are assigned by a DHCP server. Which of the following two commands would resolve the issue? (Choose 2 best answers)

A. ipconfig /all

B. ipconfig /release

C. ipconfig /renew

D. ipconfig /registerdns

E. ipconfig /flushdns

Correct Answer: B,C


Available options with ipconfig command are given below:

/? : Display this help message

/all : Display full configuration information.

/release : Release the IPv4 address for the specified adapter.

/release6 : Release the IPv6 address for the specified adapter.

/renew :  Renew the IPv4 address for the specified adapter.

/renew6 : Renew the IPv6 address for the specified adapter.

/flushdns : Purges the DNS Resolver cache.

/registerdns : Refreshes all DHCP leases and re-registers DNS names

/displaydns : Display the contents of the DNS Resolver Cache.

/showclassid : Displays all the dhcp class IDs allowed for adapter.

/setclassid : Modifies the dhcp class id.

/showclassid6 : Displays all the IPv6 DHCP class IDs allowed for adapter 

/setclassid6 : Modifies the IPv6 DHCP class id.

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