Module 3: Addressing

2. What type of device does a computer turn to when attempting to connect with a host with a known IP address on another network? a. Default gateway b. DNS server c. Root server d. DHCP server (dynamic host configuration protocol)

a. Default gateway

Which DNS server offers the most current resolution to a DNS query? a. Primary DNS server b. Root DNS server c. Caching DNS server d. TLD (top-level domain) DNS server

a. Primary DNS server

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? a. ipconfig /release b. ipconfig /renew c. ifconfig /release d. ifconfig /renew

a. ipconfig /release

3. What decimal number corresponds to the binary number 11111111 (eight ones)? a. 255 b. 256 c. 127 d. 11,111,111

a. 255

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

b. All devices on your local network

Which part of a MAC address is unique to each manufacturer? a. The network identifier b. The OUI (organizational unique identifier) c. The device identifier d. The physical address

b. 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? a. The caching and primary DNS servers because the caching server is requesting zone transfers from the primary server b. The secondary and primary DNS servers because the secondary server is requesting zone transfers from the primary server c. The root and primary DNS servers because the primary server is requesting zone transfers from the root server d. The web server and primary DNS server because the web server is requesting zone transfers from the primary DNS server

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

Which type of DNS record identifies an email server? a. AAAA record b. CNAME (canonical name) record c. MX (mail exchange) record d. PTR (pointer) record

c. MX record

Which of these commands has no parameters in Windows? a. ping b. ipconfig c. hostname d. nslookup

c. hostname

5. When your computer first joins an IPv6 LAN, what is the prefix of the IPv6 address the computer first configures for itself? a. FFOO::/8 b. ::1/128 c. 2000::/3 d. FE80::/64

d. FE80::/64