IT CertificationsComprehensive Study Set

Comptia A+ Cheat Sheet

87 questions across 0 topics. Use the find bar or section chips to jump to what you need.

Community-sourced. Answers may be wrong or out of date. Always verify with your official training portal before submitting. Not affiliated with any branch, agency, or vendor. Details.

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QUESTION 1

FTP Port Number

ANSWER

20, 21

QUESTION 2

SSH Port Number

ANSWER

QUESTION 3

TELNET Port Number

ANSWER

QUESTION 4

SMTP Port Number

ANSWER

QUESTION 5

DNS Port Number

ANSWER

QUESTION 6

BootP / DHCP Port Number

ANSWER

67, 68

QUESTION 7

TFTP Port Number

ANSWER

QUESTION 8

HTTP Port Number

ANSWER

QUESTION 9

POP3 Port Number

ANSWER

110

QUESTION 10

NNTP Port Number

ANSWER

119

QUESTION 11

NTP Port Number

ANSWER

123

QUESTION 12

IMAP4 Port Number

ANSWER

143

QUESTION 13

SNMP Port Number

ANSWER

161

QUESTION 14

BGP Port Number

ANSWER

179

QUESTION 15

LDAP Port Number

ANSWER

389

QUESTION 16

HTTPS Port Number

ANSWER

443

QUESTION 17

RDP Port Number

ANSWER

3389

QUESTION 18

Secure SMTP Port Number

ANSWER

465 or 587

QUESTION 19

Secure IMAP Port Number

ANSWER

993

QUESTION 20

Secure POP Port Number

ANSWER

995

QUESTION 21

SIP Port Number

ANSWER

5060 / 5061

QUESTION 22

RTP Port Number

ANSWER

5004 / 5005

QUESTION 23

DDR Memory Pin Count

ANSWER

184

QUESTION 24

DDR2 Memory Pin Count

ANSWER

240

QUESTION 25

DDR3 Memory Pin Count

ANSWER

240

QUESTION 26

DDR4 Memory Pin Count

ANSWER

288

QUESTION 27

Thunderbolt 1 - Transfer Rate

ANSWER

10 Gbps

QUESTION 28

Thunderbolt 2 - Transfer Rate

ANSWER

20 Gbps

QUESTION 29

Thunderbolt 3 - Transfer Rate

ANSWER

40 Gbps

QUESTION 30

USB 1.1 - Transfer Rate

ANSWER

12 Mbps

QUESTION 31

USB 2.0 - Transfer Rate

ANSWER

480 Mbps

QUESTION 32

USB 3.0 - Transfer Rate

ANSWER

5 Gbps

QUESTION 33

USB 3.1 - Transfer Rate

ANSWER

10 Gbps

QUESTION 34

Lightning cable - Transfer Rate

ANSWER

480 Mbps

QUESTION 35

SATA 1.0 - Transfer Rate

ANSWER

1.5 Gbps

QUESTION 36

SATA 2.0 - Transfer Rate

ANSWER

3.0 Gbps

QUESTION 37

SATA 3.0 - Transfer Rate

ANSWER

6.0 Gbps

QUESTION 38

SATA 3.2 - Transfer Rate

ANSWER

16 Gbps

QUESTION 39

eSATA - Transfer Rate

ANSWER

3.0 Gbps (remember: same as SATA 2.0)

QUESTION 40

IEEE1394a - Transfer Rate

ANSWER

400 Mbps

QUESTION 41

IEEE1394b - Transfer Rate

ANSWER

800 Mbps

QUESTION 42

CAT3 - Transfer Rate

ANSWER

10 Mbps

QUESTION 43

CAT5 - Transfer Rate

ANSWER

100 Mbps

QUESTION 44

CAT5e - Transfer Rate

ANSWER

1 Gbps

QUESTION 45

CAT6 - Transfer Rate

ANSWER

True 1 Gbps

QUESTION 46

CAT6a - Transfer Rate

ANSWER

10 Gbps

QUESTION 47

CAT6e - Transfer Rate

ANSWER

1000 Mbps

QUESTION 48

CAT7 - Transfer Rate

ANSWER

10 Gbps +

QUESTION 49

Bluetooth 3.0 - Transfer Rate

ANSWER

24 Mbps

QUESTION 50

802.11a - Transfer Rate

ANSWER

54 Mbps

QUESTION 51

802.11b - Transfer Rate

ANSWER

11 Mbps

QUESTION 52

802.11g - Transfer Rate

ANSWER

54 Mbps

QUESTION 53

802.11n - Transfer Rate

ANSWER

300 Mbps

QUESTION 54

802.11ac - Transfer Rate

ANSWER

1.0 Gbps

QUESTION 55

802.11a - Frequency

ANSWER

5 GHz

QUESTION 56

802.11b - Frequency

ANSWER

2.4 GHz

QUESTION 57

802.11g - Frequency

ANSWER

2.4 GHz

QUESTION 58

802.11n - Frequency

ANSWER

2.4 and 5 GHz

QUESTION 59

802.11ac - Frequency

ANSWER

5 GHz

QUESTION 60

T568A pin colors

ANSWER

1. Green Striped 2. Green Solid 3. Orange Striped 4. Blue Solid 5. Blue Striped 6. Orange Solid 7. Brown Striped 8. Brown Solid

QUESTION 61

T568B pin colors

ANSWER

1. Orange Striped 2. Orange Solid 3. Green Striped 4. Blue Solid 5. Blue Stripe 6. Green Solid 7. Brown Stripe 8. Brown Solid

QUESTION 62

IPv4 Public Addresses

ANSWER

Class A: (1)-(126) Class B: (128)-(191) Class C: (192)-(223) Class D: (224)-(239) Class E: (240)-(255)

QUESTION 63

IPv4 Private Addresses

ANSWER

Class A: (10.X.X.X) Class B: (172.16.X.X)-(172.31.X.X) Class C: (192.168.X.X)

QUESTION 64

IPv4 APIPA Address

ANSWER

169.254.X.X

QUESTION 65

IPv4 L

ANSWER

127.0.0.1

QUESTION 66

Intel Socket T Number

ANSWER

775

QUESTION 67

Intel Socket B Number

ANSWER

1366

QUESTION 68

Intel Socket H Number

ANSWER

1156

QUESTION 69

Intel Socket H2 Number

ANSWER

1155

QUESTION 70

Intel Socket H3 Number

ANSWER

1150

QUESTION 71

Intel Socket R Number

ANSWER

2011

QUESTION 72

SATA data - Pin Count

ANSWER

QUESTION 73

SATA power - Pin Count

ANSWER

QUESTION 74

HDMI - Pin Count

ANSWER

QUESTION 75

Display Port - Pin Count

ANSWER

QUESTION 76

VGA - Pin Count

ANSWER

QUESTION 77

Serial Port - Pin Count

ANSWER

QUESTION 78

Parallel Port - Pin Count

ANSWER

QUESTION 79

Floppy Berg - Pin Count

ANSWER

4 (Remember: Berg = Power)

QUESTION 80

PATA Data - Pin Count

ANSWER

QUESTION 81

THE Molex - Pin Count

ANSWER

QUESTION 82

CPU Fan Connector - Pin Count

ANSWER

QUESTION 83

Chassis Fan Connector - Pin Count

ANSWER

QUESTION 84

Main ATX Power - Pin Count

ANSWER

QUESTION 85

RJ-45 - Pin Count

ANSWER

QUESTION 86

RJ-11 - Pin Count

ANSWER

QUESTION 87

BNC - Pin Count

ANSWER

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