2.2. Identify IPv4 Addresses and Subnet Formats. 100-150 Practice Questions (Page 5)

Questions 21–25

1. 21application · medium

   A network administrator is designing a network for a school with separate labs for different classes. The administrator wants to ensure that broadcast traffic from one lab does not affect other labs. What is the most effective way to achieve this?

   • AAssign each lab a different VLAN but keep the same IP subnet.
   • BUse a single large subnet and enable storm control on all switches.
   • CUse a single subnet and rely on switches to filter broadcasts.
   • DPlace each lab in its own IPv4 subnet and connect the subnets with a router.
   Reveal Solution Discussion Select an answer first
2. 22foundation · easy

   Using a subnet calculator for the address 192.168.10.50 with subnet mask 255.255.255.192, what is the network address?

   • A192.168.10.32
   • B192.168.10.128
   • C192.168.10.0
   • D192.168.10.64
   Reveal Solution Discussion Select an answer first
4. 23application · medium

   A network administrator is troubleshooting slow network performance in a large office. The office has a single flat network with 300 devices. The administrator suspects that broadcast traffic is consuming too much bandwidth. Which change will most directly reduce the amount of broadcast traffic each device must process?

   • ADivide the network into smaller subnets and route between them.
   • BIncrease the subnet mask to /16 to allow more hosts.
   • CReplace the central switch with a router.
   • DDisable ARP on the network.
   Reveal Solution Discussion Select an answer first
5. 24application · medium

   A network administrator is redesigning a network to improve performance. Currently, all 500 devices are on a single /16 subnet. The administrator plans to divide the network into multiple /24 subnets. What is the main performance benefit of this change?

   • ARouting between subnets becomes unnecessary because they share the same broadcast domain.
   • BBroadcast traffic is confined to smaller groups of devices, reducing the processing load on each host.
   • CThe total number of usable IP addresses increases because more subnets are created.
   • DThe network will no longer need a default gateway because all subnets are directly connected.
   Reveal Solution Discussion Select an answer first
6. 25application · medium

   A company is planning to expand its office from 100 to 300 devices. The current network uses a single /24 subnet. The administrator wants to reduce broadcast traffic and improve performance. Which plan best achieves this goal?

   • AChange the subnet mask to /16 to accommodate more devices.
   • BKeep the /24 subnet but replace the switch with a router.
   • CDivide the /24 into multiple /26 subnets and route between them.
   • DUse a single /23 subnet to accommodate all devices.
   Reveal Solution Discussion Select an answer first