Quiz 14B: Troubleshoot Service and Security Issues

What is the default IP address range used by Windows clients when they fail to obtain a DHCP lease?

• 192.168.0.0/16

• 10.0.0.0/8

• 169.254.0.0/16

• 172.16.0.0/12

What term refers to the situation where a DHCP server has no available IP addresses to lease?

• APIPA

• DHCP exhaustion

• DHCP relay

• BOOTP forwarding

What should be done to address DHCP scope exhaustion?

• Install additional DHCP servers

• Increase the lease duration

• Create a new scope with more addresses

• Disable IPv4 on client interfaces

Which routing protocol is necessary for DHCP relay to function properly?

• OSPF

• RIP

• BOOTP

• DHCP

What is the potential consequence of reconfiguring DHCP servers without considering client updates?

How can a rogue DHCP server compromise a network?

• By causing DNS resolution failures

• By blocking legitimate IP addresses

• By redirecting traffic through the attacker's machine

• By initiating a denial-of-service attack

Which troubleshooting step is recommended when facing name resolution issues?

• Check the local cache

• Disable DHCP

• Increase the lease duration

• Install additional DNS servers

What is the purpose of the HOSTS file in name resolution troubleshooting?

•    To configure static IP addresses

• To list reserved IP addresses

• To map host names to IP addresses

• To configure DHCP relay agents

Which name resolution method allows clients to resolve names without a DNS server?

• LLMNR

• DHCP

• DNSSEC

• BOOTP

What is the potential cause of DNS resolution failure on a client?

• Incorrect DHCP settings

• Rogue DHCP server

• Misconfigured firewall

• Expired DNS server license