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CompTIA A+ - Leaderboard
CompTIA A+ - Details
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352 questions
| 🇬🇧 | 🇬🇧 |
| 21 | FTP |
| 21 | FTP |
| 22 | SSH |
| 20-21 | File Transfer Protocol (FTP) TCP |
| 22 | SSH |
| 22 | Secure Shell (SSH) TCP and UDP |
| 23 | Telnet |
| 23 | Telnet (TCP) |
| 25 | SMTP |
| 25 | Simple Mail Transfer Protocol (SMTP) TCP |
| 53 | DNS |
| 80 | HTTP |
| 50-51 | IPSec (TCP and UDP) |
| 110 | POP3 |
| 53 | Domain Name System (DNS) TCP and UDP |
| 143 | IMAP |
| 67-68 | Dynamic Host Configuration Protocol (DHCP) UDP |
| 443 | HTTPS |
| 69 | Trivial File Transfer Protocol (TFTP) UDP |
| 3389 | RDP |
| 80 | HyperText Transfer Protocol (HTTP) TCP |
| 137-139 | NetBIOS/NetBT |
| 110 | Post Office Protocol (POP3) TCP |
| 445 | SMB/CIFS |
| 119 | Network News Transport Protocol (NNTP) TCP |
| 427 | SLP |
| 123 | Network Time Protocol (NTP) UDP |
| 548 | AFP |
| 135-139 | NetBIOS/NetBT (TCP and UDP) |
| 67/68 | DHCP |
| 143 | Internet Message Access Protocol (IMAP4) TCP and UDP |
| 161-162 | Simple Network Management Protocol (SNMP) TCP and UDP |
| 389 | LDAP |
| 161/162 | SNMP |
| 389 | Lightweight Directory Access Protocol (LDAP) TCP and UDP |
| 443 | HTTP with Secure Sockets Layer (SSL) TCP and UDP |
| 989-990 | FTP over SSL/TLS (implicit mode) TCP |
| 3389 | Remote Desktop Protocol (RDP) TCP and UDP |
| AC | Alternating Current |
| ACL | Access Control List |
| ACPI | Advanced Configuration Power Interface |
| ADF | Automatic Document Feeder |
| ADSL | Asymmetrical Digital Subscriber Line |
| AES | Advanced Encryption Standard |
| AHCI | Advanced Host Controller Interface |
| AP | Access Point |
| APIPA | Automatic Private Internet Protocol Addressing |
| APM | Advanced Power Management |
| ARP | Address Resolution Protocol |
| ASR | Automated System Recovery |
| ATA | Advanced Technology Attachment |
| ATAPI | Advanced Technology Attachment Packet Interface |
| ATM | Asynchronous Transfer Mode |
| ATX | Advanced Technology Extended |
| AUP | Acceptable Use Policy A/V Audio Video |
| BD-R | Blu-ray Disc Recordable |
| BIOS | Basic Input/Output System |
| BD-RE | Blu-ray Disc Rewritable |
| BNC | Bayonet-Neill-Concelman |
| BSOD | Blue Screen of Death |
| BYOD | Bring Your Own Device |
| CAD | Computer-Aided Design |
| CAPTCHA | Completely Automated Public Turing test to tell Computers and Humans Apart |
| CD | Compact Disc |
| CD-ROM | Compact Disc-Read-Only Memory |
| CD-RW | Compact Disc-Rewritable |
| CDFS | Compact Disc File System |
| CERT | Computer Emergency Response Team |
| CFS | Central File System, Common File System, or Command File System |
| CGA | Computer Graphics and Applications |
| CIDR | Classless Inter-Domain Routing |
| CIFS | Common Internet File System |
| CMOS | Complementary Metal-Oxide Semiconductor |
| CNR | Communications and Networking Riser |
| COMx | Communication port (x=port number) |
| CPU | Central Processing Unit |
| CRT | Cathode-Ray Tube |
| DaaS | Data as a Service |
| DAC | Discretionary Access Control |
| DB-25 | Serial Communications D-Shell Connector, 25 pins |
| DB-9 | Serial Communications D-Shell Connector, 9 pins |
| DBaaS | Database as a Service |
| DC | Direct Current |
| DDoS | Distributed Denial of Service |
| DDR | Double Data Rate |
| DDR RAM | Double Data Rate Random Access Memory |
| DFS | Distributed File System |
| DHCP | Dynamic Host Configuration Protocol |
| DIMM | Dual Inline Memory Module |
| DIN | Deutsche Industrie Norm |
| DLT | Digital Linear Tape |
| DLP | Digital Light Processing or Data Loss Prevention |
| DMA | Direct Memory Access |
| DNS | Domain Name Service or Domain Name Server |
| DoS | Denial of Service |
| DRAM | Dynamic Random Access Memory |
| DRM | Digital Rights Management |
| DSL | Digital Subscriber Line |
| DVD | Digital Versatile Disc |
| DVD-RAM | Digital Versatile Disc-Random Access Memory |