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Changing the web site URL from server21.company.com to www.company.com, is making use of which of the following DNS record types? Pointer Name Server Addres: CName Question 2 What value in DNS dictates how long a DNS server or client might cache DNS name resolution information? Hop count Increment duration Bachotf timer TLL Question 3 A DHCP Server has been instalied on a remote network and is configured to give out addresses to all the subnets in the LAN. What service will be required on the local router in order for this to work? Native VLAN Relay or iP helpor Trumk link Active Birecioty