Network+ (9th Edition) - Module 3: Self-Check and Review Questions

10. Which DNS record type is used to find an FQDN from a given IP address?

PTR

8. When your computer requests a DNS lookup, which DNS server holds the most reliable information for that DNS record?

Primary DNS server

9. Which DNS record type is listed 1st in a zone file?

SOA (service-oriented architecture)

4. Which of the following IPv4 addresses is a public IP address?

64.233.177.189

13. What problem will "ping google.com" check for that ping 8.8.8.8 will not?

Name resolution issues

Review Q6: 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

3. What command shows you a computer's TCP/IP configuration?

ipconfig

2. What Windows Command outputs a computer's MAC address?

ipconfig /all

12. Which command disables a computer's connection to the network?

ipconfig /release

5. Which IPv6 prefix can be routed on the Internet?

2000::/3

7. Which port should be open so you can remote into the corporate office's Linux server from a branch office?

22

Review Q3: What decimal number corresponds to the binary number 11111111?

255

Review Q2: What type of device does a computer turn to when attempting to connect with a host with a known ip address on another network?

Default gateway

Review Q5: When your computer first joins an IPv6 LAN, what is the prefix of the IPv6 address the computer configures for itself?

FE80::/64

11. What protocol does ping use?

ICMP

Review Q1: Which part of a MAC address is unique to each manufacturer?

The OUI

1. What numbering system do people use to write MAC addresses?

hexadecimal

Review Q7: Which of these commands has no parameters in Windows?

hostname

6. When hosting a secure email server for access from the Internet, which port should be open on the corporate firewall?

587

Review Q4: Suppose you send data to the 11111111 11111111 11111111 11111111 IP address on an IPv4 network. To which device(s) are you transmitting?

All devices on your local network