October 2022
Intermediate to advanced
912 pages
21h 37m
English
Content preview from CompTIA A+ Core 1 (220-1101) and Core 2 (220-1102) Cert Guide
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Appendix C
Memory Tables
Chapter 1
Table 1-2 Comparison of HDD, SSD, and SSHD
Type of Hard Drive |
Cost |
Capacity |
Speed |
Reliability |
|---|---|---|---|---|
HDD |
||||
SSD |
||||
SSHD |
Table 1-4 SODIMM Features
Memory Type |
Number of Pins |
Notch Location |
Notes |
|---|---|---|---|
DDR3 |
67.6mm long and 30mm high |
||
DDR4 |
69.6mm long and 30mm high |
||
DDR5 |
69.6mm long and 30mm high |
Chapter 2
Table 2-2 Common Protocols and Their Ports
Port Number(s) |
Protocol |
Port Type |
|---|---|---|
20/21 |
||
22 |
||
23 |
||
25 |
||
53 |
||
67/68 |
||
80 |
||
110 |
||
137/139 |
||
143 |
||
161/162 |
||
389 |
||
443 |
||
445 |
||
3389 |
Table 2-3 PoE Standards
Name |
IEEE Standard |
Power Available to Powered Device (PD) |
Maximum Power |
|---|---|---|---|
PoE |
____W |
____W |
|
PoE+ |
____W |
____W |
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