IS 560 Chapter 3 Quiz

Which type of DNS record identifies an email server? PTR record MX record AAAA record CNAME record

MX record

Suppose you send data to the 11111111 11111111 11111111 11111111 IP address on an IPv4 network. To which device(s) are you transmitting? The one device that is configured with this IP address All devices on your local network No devices All devices on the Internet

All devices on your local network

What type of device does a computer turn to first when attempting to make contact with a host with a known IP address on another network? Root server Default gateway DHCP server DNS server

Default gateway

When your computer first joins an IPv6 network, what is the prefix of the IPv6 address the computer first configures for itself? 2001::/3 FE80::/10 FF00::/8 2001::/64

FE80::/10

Which computers are the highest authorities in the Domain Name System hierarchy? Primary DNS servers Authoritative name servers Top-level domain servers Root servers

Root servers

Which part of a MAC address is unique to each manufacturer? The physical address The device identifier The OUI The network identifier

The OUI

You have just brought online a new secondary DNS server and notice your network-monitoring software reports a significant increase in network traffic. Which two hosts on your network are likely to be causing the increased traffic and why? The root and primary DNS servers, because the primary server is requesting zone transfers from the root server The web server and primary DNS server, because the web server is requesting zone transfers from the primary DNS server The caching and primary DNS servers, because the caching server is requesting zone transfers from the primary server The secondary and primary DNS servers, because the secondary server is requesting zone transfers from the primary server

The secondary and primary DNS servers, because the secondary server is requesting zone transfers from the primary server

Which of these commands is available only in Linux? ipconfig nslookup dig ping

dig

What decimal number corresponds to the binary number 11111111? 255 11,111,111 127 256

255

If you are connected to a network that uses DHCP, and you need to terminate your Windows workstation's DHCP lease, which command would you use? ipconfig /release ifconfig /renew ipconfig /renew ifconfig /release

ipconfig /release