Networking Domain Exam #1 Questions with Correct Answers
What is the DNS port? - ✔✔53 — turns names into IP addresses
What are the DHCP ports? - ✔✔67/68 — gives devices IP addresses
What are the ports for HTTP and HTTPS? - ✔✔HTTP 80, HTTPS 443
What is the SMTP port and its purpose? - ✔✔25 — sends email
What is the POP3 port and its purpose? - ✔✔110 — downloads/receives email
What is the IMAP port and its purpose? - ✔✔143 — syncs email across devices
What is the Telnet port and its issue? - ✔✔23 — remote login,
insecure/unencrypted
What is the SSH port and its purpose? - ✔✔22 — secure remote command line
What is the LDAP port and its purpose? - ✔✔389 — directory/user lookup
What is the RDP port and its purpose? - ✔✔3389 — remote Windows desktop
What is the SMB port and its purpose? - ✔✔445 — Windows file/printer sharing
, What are the private IP ranges? - ✔✔10.x.x.x, 172.16-31.x.x, 192.168.x.x
What is the APIPA range? - ✔✔169.254.x.x
What does APIPA usually mean? - ✔✔Device failed to get an IP from DHCP
What is the localhost IP? - ✔✔127.0.0.1
What is a public IP address? - ✔✔Any normal internet-routable IP that is not
private, APIPA, or localhost
What does NAT do? - ✔✔Lets multiple private devices share one public IP
What does a DNS server do? - ✔✔Converts domain names to IP addresses
What does a DHCP server do? - ✔✔Gives IP address, subnet mask, gateway, and
DNS info
What is a DHCP reservation? - ✔✔Gives the same IP to a device based on MAC
address
What does a web server do? - ✔✔Hosts websites using HTTP/HTTPS
What does a file server do? - ✔✔Stores and shares files
What is the DNS port? - ✔✔53 — turns names into IP addresses
What are the DHCP ports? - ✔✔67/68 — gives devices IP addresses
What are the ports for HTTP and HTTPS? - ✔✔HTTP 80, HTTPS 443
What is the SMTP port and its purpose? - ✔✔25 — sends email
What is the POP3 port and its purpose? - ✔✔110 — downloads/receives email
What is the IMAP port and its purpose? - ✔✔143 — syncs email across devices
What is the Telnet port and its issue? - ✔✔23 — remote login,
insecure/unencrypted
What is the SSH port and its purpose? - ✔✔22 — secure remote command line
What is the LDAP port and its purpose? - ✔✔389 — directory/user lookup
What is the RDP port and its purpose? - ✔✔3389 — remote Windows desktop
What is the SMB port and its purpose? - ✔✔445 — Windows file/printer sharing
, What are the private IP ranges? - ✔✔10.x.x.x, 172.16-31.x.x, 192.168.x.x
What is the APIPA range? - ✔✔169.254.x.x
What does APIPA usually mean? - ✔✔Device failed to get an IP from DHCP
What is the localhost IP? - ✔✔127.0.0.1
What is a public IP address? - ✔✔Any normal internet-routable IP that is not
private, APIPA, or localhost
What does NAT do? - ✔✔Lets multiple private devices share one public IP
What does a DNS server do? - ✔✔Converts domain names to IP addresses
What does a DHCP server do? - ✔✔Gives IP address, subnet mask, gateway, and
DNS info
What is a DHCP reservation? - ✔✔Gives the same IP to a device based on MAC
address
What does a web server do? - ✔✔Hosts websites using HTTP/HTTPS
What does a file server do? - ✔✔Stores and shares files
