Comptia A+ 220-1201 Core 1 Test
Questions and All Correct Answers.
FTP - Answer 20, 21 Transfers files between computers; not encrypted.
SSH - Answer 22 Secure remote login/command line.
Telnet - Answer 23 Remote terminal (insecure, plain text).
SMTP - Answer 25 Sends outgoing email.
DNS - Answer 53 Converts domain names ↔ IP addresses.
DHCP - Answer 67/68 Auto-assigns IP addresses.
HTTP - - Answer 80 Unencrypted web traffic.
POP3 - - Answer 110 Downloads email to client.
IMAP - Answer 143 Syncs/stores email on server.
NetBIOS/NetBT - - Answer 137-139Legacy Windows file/printer sharing.
LDAP - - Answer 389 Directory services (user lookup/authentication).
HTTPS - - Answer 443 Secure web traffic.
SMB/CIFS - - Answer 445 Windows file/printer sharing.
RDP- - Answer 3389 Remote desktop connection.
,5 GHz - - Answer Shorter range, faster speed, less interference.
6 GHz - - Answer Very high speed, newest Wi-Fi 6E standard.
Channel Selection - - Answer Avoid overlap/interference; follow local regulations.
802.11 Standards - - Answer a/b/g/n/ac/ax = older to newer, increasing speed.
Bluetooth - - Answer Short-range device connection (headsets, keyboards).
NFC - - Answer Very short-range (tap-to-pay, pairing).
RFID - - Answer Tag scanning (inventory, access badges).
DNS - - Answer Resolves domain names.
DHCP - - Answer Assigns IPs dynamically.
File Server - - Answer Stores/shared files.
Print Server - - Answer Manages printers.
Mail Server - - Answer Handles email.
Syslog - - Answer Central log collection.
Web Server - - Answer Hosts websites.
AAA - - Answer Authentication, Authorization, Accounting.
Database Server - - Answer Hosts structured data.
, VPN - - Answer Encrypted remote connection.
Routers - - Answer Connects networks, routes traffic.
Switches - - Answer Connects devices in a LAN; managed = configurable, unmanaged = plug-
and-play.
Access Point - - Answer Wireless connectivity.
Patch Panel - - Answer Cable organization/termination point.
Firewall - - Answer Blocks/filters traffic.
PoE - - Answer Power over network cable.
Modem (Cable/DSL/ONT) - - Answer Converts ISP signal to Ethernet.
NIC - - Answer Network card; has unique MAC address.
IPv4 - - Answer 32-bit addresses (e.g., 192.168.1.1).
Private vs Public - - Answer Private stays inside network.
IPv6 - - Answer 128-bit addresses, larger address space.
APIPA - - Answer 169.254.x.x auto-assigned when DHCP fails.
Static vs Dynamic - - Answer Manually set vs auto-assigned.
Subnet Mask - - Answer Defines network portion of IP.
Questions and All Correct Answers.
FTP - Answer 20, 21 Transfers files between computers; not encrypted.
SSH - Answer 22 Secure remote login/command line.
Telnet - Answer 23 Remote terminal (insecure, plain text).
SMTP - Answer 25 Sends outgoing email.
DNS - Answer 53 Converts domain names ↔ IP addresses.
DHCP - Answer 67/68 Auto-assigns IP addresses.
HTTP - - Answer 80 Unencrypted web traffic.
POP3 - - Answer 110 Downloads email to client.
IMAP - Answer 143 Syncs/stores email on server.
NetBIOS/NetBT - - Answer 137-139Legacy Windows file/printer sharing.
LDAP - - Answer 389 Directory services (user lookup/authentication).
HTTPS - - Answer 443 Secure web traffic.
SMB/CIFS - - Answer 445 Windows file/printer sharing.
RDP- - Answer 3389 Remote desktop connection.
,5 GHz - - Answer Shorter range, faster speed, less interference.
6 GHz - - Answer Very high speed, newest Wi-Fi 6E standard.
Channel Selection - - Answer Avoid overlap/interference; follow local regulations.
802.11 Standards - - Answer a/b/g/n/ac/ax = older to newer, increasing speed.
Bluetooth - - Answer Short-range device connection (headsets, keyboards).
NFC - - Answer Very short-range (tap-to-pay, pairing).
RFID - - Answer Tag scanning (inventory, access badges).
DNS - - Answer Resolves domain names.
DHCP - - Answer Assigns IPs dynamically.
File Server - - Answer Stores/shared files.
Print Server - - Answer Manages printers.
Mail Server - - Answer Handles email.
Syslog - - Answer Central log collection.
Web Server - - Answer Hosts websites.
AAA - - Answer Authentication, Authorization, Accounting.
Database Server - - Answer Hosts structured data.
, VPN - - Answer Encrypted remote connection.
Routers - - Answer Connects networks, routes traffic.
Switches - - Answer Connects devices in a LAN; managed = configurable, unmanaged = plug-
and-play.
Access Point - - Answer Wireless connectivity.
Patch Panel - - Answer Cable organization/termination point.
Firewall - - Answer Blocks/filters traffic.
PoE - - Answer Power over network cable.
Modem (Cable/DSL/ONT) - - Answer Converts ISP signal to Ethernet.
NIC - - Answer Network card; has unique MAC address.
IPv4 - - Answer 32-bit addresses (e.g., 192.168.1.1).
Private vs Public - - Answer Private stays inside network.
IPv6 - - Answer 128-bit addresses, larger address space.
APIPA - - Answer 169.254.x.x auto-assigned when DHCP fails.
Static vs Dynamic - - Answer Manually set vs auto-assigned.
Subnet Mask - - Answer Defines network portion of IP.
