SFP devices added to routers plus random stuff

Question 1

FXO card

Answer 1

Card that allows us to connect analog phone loines to the router

Question 2

EHWIC

Answer 2

card that allows us to connect a T! internet connection to the router

Question 3

switch module

Answer 3

allows us to connect up to 24 ethernet based devices directly to the router. Turs router into a router and a switch.

Question 4

flooding

Answer 4

if a switch doesn’t have a matching MAC it sends the frame out of all the ports.

Question 5

security steps include for new switches

Answer 5

create vlan and shut it doen
Move unused ports to unused vlan
shut down unused ports.
block devices not on the mac list.

Question 6

Layer 3 switches

Answer 6

can connect vlans and contain ACL

Question 7

ONT

Answer 7

Optical network terminal -converts fiber optic to TP

Question 8

PoE

Answer 8

power over ethernet

Question 9

EAP

Answer 9

(Extensible Authentication Protocol): Runs within the 802.1X framework to support various authentication methods

• EAP-TLS: Uses certificates on both the client and the server for strong mutual authentication.
• PEAP (Protected EAP) and EAP-TTLS: Encapsulate EAP within a secure tunnel, allowing the use of simpler credentials like usernames and passwords while still providing strong security.

Question 10

AirMagenet Survey Pro or ekahau

Answer 10

software used to plan wireless networks and oiptimize the placement of each access point.

Question 11

Cisco Meraki

Answer 11

Cloud based access point controller for wireless networks.

Question 12

DCF

Answer 12

Distributed Cordinated Fuction
Ensures signals don’t collide.

Question 13

SDN - Northbound interface
Southbound interface
Of Control layer

Answer 13

Connection between controller and application is called Northbound
Connnection between controller and infrastructure is called Southbound interface.

Question 14

SDN - two infrastructure organizations

Answer 14

3 tierd
spine-leaf - more comon now.

Question 15

Number of channels on 5ghz wifi

Answer 15

23 - 20MHZ wide

Question 16

Number of channels on 2.4ghz wifi

Answer 16

11 - 22mhz wide

Question 17

channel bonding

Answer 17

combining two adjacent channels together.

Question 18

Mu-mimo

Answer 18

cuts a 20mhz channel into 64 sub channels. 52 can carry data

Question 19

802.11a

Answer 19

1999 - 54Mbps 5Ghz.

Question 20

802.11b

Answer 20

1999 standard 11Mbps 2.4Ghz

Question 21

802.11g

Answer 21

2003 standard 54Mbps 2.4Ghz.

Question 22

802.11n

Answer 22

2009 standard. MIMO 72.2 Mbps with one send and one recieve antenna. 450 Mbps with three send and recieve.

Question 23

802.11ac

Answer 23

MU-MIMO
2014
433Mbps per aantenna
1.3Gbps with three
Wi-Fi5

Question 24

802.11AX

Answer 24

2021 standard
Improvement in throughput and latency
Orthogonal frequency division multiple access.
20 Mhz channel into 256 segments

Question 25

802.11be

Answer 25

2024 standard wifi7

Question 26

zigbee

Answer 26

protocol for low power low bandwidth communication

Question 27

ubiquiti networks

Answer 27

make point to point or point to multipoint antanae

Question 28

UTM

Answer 28

Unified Threat Management Firewall Intrusion detection/prevention anti-virus proxy Data leak prevention VPN

Question 29

End-Point Management Server

Answer 29

manages end user devices. SCCM - Microsoft System Center Configuration Manager.

Question 30

ICS

Answer 30

Industrial Control Systems

Question 31

SCADA

Answer 31

Supervisory Control and Data Acquisition - in a industrial environment - idealy should be air gapped.

Question 32

PRL updates

Answer 32

perfered roaming list. mobile carrier roaming coverage.

Question 33

DDR3 dimm

Answer 33

240 pins

Question 34

# ddr ddr4 dimm

Answer 34

288

Question 35

ddr3 sodimm

Answer 35

204 pins

Question 36

ddr4 sodimm

Answer 36

260 pins

Question 37

Answer 37

minipcie

Question 38

Answer 38

m.2 2242 2260 2280

Question 39

802.11n

Answer 39

Maximum data rate 600 5 and or 2.4

Question 40

802.11ac

Answer 40

3.5Gbps | 5ghz

Question 41

Configuring ip with powershell

Answer 41

netsh interface ip set address "connection name" static ipv4 address ipv4 mask ipv4 gateway

Question 41

802.11ax

Answer 41

9.6 Gbps | 5ghz & 2.4Ghz

Question 42

IPv6 loopback

Answer 42

ping ::1

Question 43

IPv6 link-local start with

Answer 43

FE80::/10

Question 44

APIPA local link range for ipv4

Answer 44

169.254.0.0 to 169.254.255.25

Question 45

PTR record

Answer 45

reverse dns lookup. IP to name

Question 46

ns record

Answer 46

dns server record

Question 47

mx record

Answer 47

mail server record. dns

Question 48

DKIM

Answer 48

tries to detect email spoofers. email authentication method.

Question 49

Sender Poliicy Framework (SPF

Answer 49

also detects email spoofers by checking dns of sending server.`

Question 50

Domain based message authentication (DMARC)

Answer 50

best of three email authentication protocols. Used in conjunction with DKIM or SPF.

Question 51

568b pin out

Answer 51

: "Blue Breaks the Pattern!" b orange pin1 white/orange Pin2 orange Pin 3 white green pin 4 blue pin 5 blue/white Pin 6 green pin 7 white/brown pin 8 brown.

Question 52

568a pin out

Answer 52

"A" stands for Army/Ancient (less commonly used) : "Blue Breaks the Pattern!" Pin 1 : white /green Pin 2 : green Pin 3 : white/orange Pin 4 : blue Pin 5 : white/blue Pin 6 : orange Pin 7 : white/brown Pin 8 : brown.

Question 53

maxium length of UTP/STP

Answer 53

100 meters (328 feet)

Question 54

USB 2.0

Answer 54

480 Mbps

Question 55

USB 3.0

Answer 55

5 Gbps

Question 56

USB 3.1

Answer 56

10Gbps

Question 57

USB 3.2

Answer 57

10/20 Gbps

Question 58

thunderbolt v. 1

Answer 58

10 Gbps - display port, version 2.0

Question 59

thunderbolt v. 2

Answer 59

20 Gbps -display port -

Question 60

Thunderbold v3

Answer 60

40 Gbps - usb c - version 3.0 pcie

Question 61

SATA R 3.0

Answer 61

6 Gbps - 600 MB/s

Question 62

SATA rev. 3.2

Answer 62

16 Gbps 1969 MBps

Question 63

cd

Answer 63

times 150kb (48*150kb = 7.2MB/s think a cd holds 150 songs

Question 64

DVD

Answer 64

1.32 MB/s * number think movie is 1 hour 32 min.

Question 65

Bluray

Answer 65

4.5 MB/s or 36 Mb/s

Question 66

run command to get to device manager

Answer 66

run>devmgmt.msc

Question 67

Laser printer printing process

Answer 67

1 processing 2. charging 3. exposing 4. developing 5. Transfering 6. Fusing 7. Cleaning

Question 68

check if system can run hyper-v

Answer 68

systeminfo