CompTIA A+ 220-1001 Chapter 13 - 16

What protocol is used to find the MAC address of a given IP address? Choose the best response.

• ARP
• DHCP
• APIPA
• DNS

Which IPv4 address might be valid on the Internet? Choose the best response.

• 127.0.0.1
• 150.50.101.32
• 169.254.121.68
• 192.168.52.52

Which of the following subnet masks are valid? Choose all that apply.

• 255.0.0.0.0
• 255.0.255.0
• 255.255.224.0
• 255.255.16.0
• 255.255.255.0

What will any link-local IPv6 address begin with? Choose the best answer.

• 0000:
• 83.33333333333333
• fe80:
• ff0e:

You're in the process of migrating the corporate network to IPv6, but it's going to take a while. You've been told to configure the network such that any two hosts will communicate via IPv6 if the path between them is compatible, but they'll automatically use IPv4 if it isn't. What migration strategy does this describe? Choose the best answer.

• Dual stack
• IPAM
• NAT
• Tunneling

For a local server, you might not need the full domain name to perform a DNS lookup.

• true
• false

What kind of communications would be suitable for UDP? Choose all that apply.

• DNS requests
• File transfers
• Online games
• Streaming video
• Website connections

Your company's custom server software application needs a TCP port to listen on. What port range should it be configured to use? Choose the best answer.

• Ephemeral
• Private
• System
• User

Which port is important for sending email? Choose the best response.

• 21
• 23
• 25
• 53

What kind of server is used to relay communications between LAN hosts and internet hosts? Choose the best response.

• DNS
• Proxy
• Syslog
• Web