ITF+

Question 1

802.11a (Wifi 1)

Answer 1

5 GHz Range, 54 Mbits speed

Question 2

802.11b (Wifi 2)

Answer 2

2.4 GHz Range, 11 Mbits speed

Question 3

802.11g (Wifi 3)

Answer 3

2.4 GHz Range, 54 Mbits speed

Question 4

802.11n (Wifi 4)

Answer 4

5GHz and/or 2.4 GHz, 600 Mbits speed

Question 5

MIMO

Answer 5

Multiple Input Multiple Output, Devices can transfer much more info simultaneously between the in station and the access point

Question 6

802.11ac (Wifi 5)

Answer 6

5GHz Range, 7 Gbits speed

Question 7

802.11ax (Wifi 6)

Answer 7

5 GHz or 2.4, 9.6 Gbits speed

Question 8

FTP (File Transfer Protocol)

What is the port number?

Answer 8

20, 21

Question 9

SSH (Secure Shell)

What is the port number?

Answer 9

22

Question 10

SMTP (Simple Mail Transfer Protocol) for email

Port numb?

Answer 10

25

Question 11

DNS (Domain Name System)

Port numb?

Answer 11

53

Question 12

HTTP (Hypertext Transfer Protocol) for web traffic

Port numb?

Answer 12

80

Question 13

HTTPS (Hypertext Transfer Protocol Secure) for encrypted web traffic

Port numb?

Answer 13

443

Question 14

RDP Remote Desktop Protocol

Port?

Answer 14

3389

Question 15

HDMI vs DP (display port)

Answer 15

HDMI: 19pin connecter, Audio & Video, 48Gbps, res up to 4k 120Hz and 8k 60Hz

DP: 20 pin, 80Gbps, higher res than hdmi

Question 16

VGA

Answer 16

Video Graphics Array

Video Only

Question 16

DVI

Answer 16

Digital Video Interface

Video only

Question 17

DHCP (Dynamic Host Configuration Protocol)

Answer 17

Port 67 and 68

Question 18

IMAP (Internet Message Access Protocol) Email

Answer 18

port 143

Question 19

POP3 (Post Office Protocol V3)

Answer 19

port 110

Question 20

SNMP (Simple Network Management Protocol)

Answer 20

port 161

Question 21

TCP vs UDP

Answer 21

TCP: reliable protocol that prioritizes reliability over speed

UDP: unreliable protocol that prioritizes speed over reliability