Configure Network Services SK0-005 Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A hospital network has a flat Layer 2 topology. The IT team wants to isolate patient-monitoring devices from the general staff Wi-Fi network to reduce broadcast traffic and improve security. The monitoring devices and the Wi-Fi access points are connected to the same physical switches. Which configuration should the administrator implement?

   • AAssign different IP subnets to the monitoring devices and the Wi-Fi access points without changing the switch configuration
   • BEnable port security on all switch ports to restrict which MAC addresses can connect
   • CCreate two VLANs (e.g., VLAN 10 for monitoring, VLAN 20 for Wi-Fi) and assign the appropriate switch ports to each VLAN
   • DConfigure a single VLAN with a tighter subnet mask to limit broadcast traffic
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2. 12foundation · easy

   What is the purpose of a forward lookup zone in DNS?

   • ATo resolve IP addresses to hostnames
   • BTo filter malicious domain names
   • CTo store DHCP lease information
   • DTo resolve hostnames to IP addresses
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4. 13foundation · easy

   What is the main function of DHCP?

   • ATo resolve domain names to IP addresses
   • BTo segment a network into multiple broadcast domains
   • CTo automatically assign IP addresses to devices on a network
   • DTo encrypt network traffic between clients and servers
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5. 14application · medium

   A company has an internal DNS server that resolves internal hostnames. They recently acquired a new subsidiary and want internal users to resolve the subsidiary's web server (web.subsidiary.com) which is hosted externally at 198.51.100.20. The internal DNS server is authoritative for 'subsidiary.com'. What should the administrator configure on the internal DNS server?

   • ACreate a conditional forwarder for 'subsidiary.com' pointing to the subsidiary's public DNS server
   • BAdd an A record for 'web' in the 'subsidiary.com' zone pointing to 198.51.100.20
   • CConfigure a stub zone for 'subsidiary.com' pointing to the public DNS server
   • DDelete the 'subsidiary.com' zone from the internal DNS server
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6. 15foundation · easy

   What is a key difference between IPv4 and IPv6 addresses?

   • AIPv4 addresses are 32 bits long, while IPv6 addresses are 128 bits long
   • BIPv4 addresses are written in hexadecimal, while IPv6 addresses are written in decimal
   • CIPv4 addresses are only used on private networks, while IPv6 addresses are only used on public networks
   • DIPv4 addresses are 128 bits long, while IPv6 addresses are 32 bits long
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