A new department has been established with 511 hosts that require addresses. Currently the company uses the 10.20.0.0/16 address space. How many bits must the network administrator borrow to provide addresses for this subnet without wasting addresses?
IT Exam Items Repository › Category: CCNA 1 v6 › A new department has been established with 511 hosts that require addresses. Currently the company uses the 10.20.0.0/16 address space. How many bits must the network administrator borrow to provide addresses for this subnet without wasting addresses?
A new department has been established with 511 hosts that require addresses. Currently the company uses the 10.20.0.0/16 address space. How many bits must the network administrator borrow to provide addresses for this subnet without wasting addresses?
Explanation: The new department requires 511 hosts, but in any subnet, two addresses (network and broadcast) are unusable, so a subnet must be created that can accommodate 513 addresses. The closest matching number would be a network with 1024 hosts. To create 1024 hosts requires 10 host bits (210–1024). Currently there are 16 host bits available, so the administrator must borrow 6 bits to create 64 subnets, each with 1022 available hosts.
Related exam: CCNA 1 ITNv6 Chapter 8: Check Your Understanding
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