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A+ > 220-1101 Networking > Flashcards

220-1101 Networking Flashcards

1
Q

Ports (2) for File Transfer Protocol (FTP)

A

20/21

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2
Q

Port for Secure Shell (SSH)

A

22

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3
Q

Port for Telnet

A

23

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4
Q

Port for Simple Mail Transfer Protocol (SMTP)

A

25

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5
Q

Port for UDP Domain Name System (DNS)

A

53

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6
Q

Ports (2) for UDP Dynamic Host Configuration Protocol (DHCP)

A

67/68

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7
Q

Port for Hypertext Transfer Protocol (HTTP)

A

80

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8
Q

Port for TCP LDAP?

A

389

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9
Q

Port for Post Office Protocol 3 (POP3)

A

110

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10
Q

Ports (3) for UDP Server Message Block (SMB) / CIFS

A

137, 138, 139

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11
Q

Port for Internet Mail Access (IMAP)

A

143

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12
Q

Ports (2) for UDP Simple Network Management Protocol (SNMP)

A

161/162

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13
Q

Port for Lightweight Directory Access Protocol (LDAP)

A

389

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14
Q

Port for Hypertext Transfer Protocol Secure (HTTPS)

A

443

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15
Q

Port for TCP Server Message Block (SMB)/Common Internet File System (CIFS)

A

445

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16
Q

Port for Remote Desktop Protocol (RDP)

A

3389

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17
Q

Which communication protocol is connection oriented and makes sure the data is moving between the two systems are all received correctly?

A

TCP

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18
Q

Which communication protocol is connection-less and is used when performance is more important than all packets being correct?

A

UDP

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19
Q

DHCP and Trivial File Transfer Protocol (TFTP) are examples of a connection-less or connection-oriented protocol?

A

Connectionless

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20
Q

HTTPS and SSH are examples of a connection-less or connection-oriented protocol?

A

Connection-oriented

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21
Q

What connects the LAN to the WAN?

A

A router

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22
Q

What segments networks into broadcast domains (broadcast packets do not get routed)

A

A router

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23
Q

What communication protocol is typically used between routers?

A

TCP/IP

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24
Q

What do routers use to address traffic?

A

IP addresses

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25
Q

What is a smart repeater which memorizes MAC addresses and sends out data to the correct recipient?

A

Switches

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26
Q

What is a dumb repeater that sends data out to all recipients?

A

Hub

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27
Q

What device provides a common point of connection for network devices?

A

Switches

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28
Q

What do switches use to to address traffic?

A

Mac addresses

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29
Q

Which switches offer more features, has an IP address for configuration and offers virtual local networks (VLAN): Managed or Unmanaged?

A

Managed

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30
Q

Which switches are an automatic device where no configuration is required for it to start communicating: Managed or Unmanaged?

A

Unmanaged

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31
Q

What device extends the capabilities of a wireless Ethernet network?

A

Wireless Access Point (WAP)

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32
Q

Which wireless network is described by a single WAP servicing a given area and is appropriate for small homes?

A

Basic Service Set (BSS)

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33
Q

Which wireless network is described by more than one WAP, or wireless repeaters/extenders, and is appropriate for large homes, office buildings, and campuses?

A

Extended Basic Service Set (EBSS)

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34
Q

T/F: Wireless Access Points can also act as switches and routers?

A

True

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35
Q

T/F: Wireless Access Points can draw power from Power over Ethernet (PoE)?

A

True

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36
Q

What is a box with a row of female connectors in the front and permanent connections in the back, to which you connect the horizontal cables?

A

Patch Panel

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37
Q

What is the purpose of a Patch Panel

A

Keeps the technician from having to move horizontal cabling, which is very fragile.

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38
Q

What is the most common type of patch panel connection?

A

Punchdown Block (110-punchdown block)

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39
Q

What tool is used to connect UTP cables to a punchdown block?

A

Punchdown tool

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40
Q

What is the first line of defense in organizing networking cables?

A

Patch Panel

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41
Q

Which device protects the internal network from unauthorized access to and from the Internet?

A

Firewall

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42
Q

Which technology is used to provide power over a network connection?

A

Power over Ethernet (PoE)

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43
Q

Which device can extend a PoE connection up to 100 meters to connect Ethernet devices such as security cameras?

A

Injector

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44
Q

What device can provide PoE to connected devices?

A

Switch

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45
Q

What are the three PoE Standards?

A

PoE: IEEE 802.3af
PoE+: IEEE 802.3at
PoE++: IEEE 802.3bt

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46
Q

T/F: Almost all Hubs have been replaced by switches?

A

True

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47
Q

What do Hubs use to address traffic?

A

MAC address

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48
Q

What device takes the incoming signal from the Internet and translates it into something the computer can understand?

A

Modem

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49
Q

What technology connects to ISPs using a standard telephone line with special equipment on each end to create always-on internet connections?

A

Digital Subscriber Line (DSL)

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50
Q

Speed of traditional DSL?

A

1-3 Mbps

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51
Q

Speed of xDSL:

A

10-100 Mbps

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52
Q

What is plugged into phones to remove high-pitch screech of DSL signal?

A

DSL microfilters

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53
Q

What device is the connection between the fiber-to-the-node (FTTN)/fiber-to-the-premisis (FTTP) and the LAN?

A

Optical network terminal (ONT)

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54
Q

What devices has one connection for fiber and an Ethernet or coax connection for a router?

A

Optical network terminal (ONT)

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55
Q

Which device defines or labels the machine on the network?

A

Network interface card (NIC)

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56
Q

Which device breaks files into smaller data units to send across the network and reassembles the data it receives into whole files?

A

Network interface card (NIC)

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57
Q

Which devices is described when the motherboard has networking built in?

A

Network interface controller

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58
Q

What is the built in identifier for a NIC?

A

MAC address

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59
Q

What is described when switches that are automatically managed by a separate controller elsewhere on the network?

A

Software-defined networking (SDN)

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60
Q

What are the three frequency bands used by Wifi?

A

2.4 Ghz
5 Ghz
6 Ghz

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61
Q

What is a contiguous range of frequencies?

A

a band

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62
Q

Each Wi-Fi channel is how big (Mhz)?

A

20 Mhz

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63
Q

How many channels does 2.4 Ghz band have in other countries?

A

11-13 channels

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64
Q

What channels does the 2.4 Ghz band have in the US?

A

Channels 1, 6 and 11

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65
Q

How many channels does the 5 Ghz band have in the US?

A

25

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66
Q

What Wi-Fi band can “bond” two or four channels into wide (40 MHz) or ultra-wide (80 MHz) channel increasing throughput?

A

5 Ghz

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67
Q

Which Wi-Fi band is referred to as Wi-Fi 6E?

A

6 Ghz

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68
Q

Which Wi-Fi band can support bonding eight channels into one super-wide (160 MHz) channel?

A

6 Ghz

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69
Q

What must outdoor WAPs using the 6Ghz channel must support?

A

Automated Frequency Coordination (AFC)

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70
Q

What sends location, antenna height, and other details to central database and tells the WAP what channels it can use & power level?

A

Automated Frequency Coordination (AFC)

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71
Q

What technology creates small wireless networks for specific use cases?

A

Bluetooth

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72
Q

What technology uses 79 frequencies in the 2.45-Ghz range and frequency hopping?

A

Bluetooth

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73
Q

Which Bluetooth version supports speeds around 1 Mbps?

A

Version 1.1 and 1.2

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74
Q

Which Bluetooth version is backwards compatible and supports up to 3 Mbps?

A

Version 2.0 and 2.1

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75
Q

When Bluetooth v2.0 and 2.1 supports speeds up to 3 Mbps, what is it called?

A

Enhanced Data Rate (EDR)

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76
Q

Which Bluetooth version supports HS which supports speeds up to 24 Mbps, but accomplished over 802.11 connection after Bluetooth negotiation?

A

Version 3.0+

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77
Q

T/F: The High Speed (HS) feature of Bluetooth version 3.0+ is optional?

A

True

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78
Q

Which Bluetooth version is called Bluetooth Smart and largely focused on improving Bluetooth’s suitability for use in networked “smart” devices/appliances?

A

Version 4.0, 4.1 and 4.2

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79
Q

What are the features of Bluetooth v4.0, 4.1 and 4.2

A

reduces cost and power consumption
improves speed and security
introduces IP connectivity

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80
Q

Which Bluetooth version adds options to increase speed at the expense of range or by changing packet size?

A

Bluetooth 5

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81
Q

Which Bluetooth version adds better support for Internet of Things (IoT) devices?

A

Bluetooth 5

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82
Q

Bluetooth class with 100 mW power usage| 100 meters range?

A

Class 1

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83
Q

Bluetooth class with 2.5 mW | 10 meters?

A

Class 2

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84
Q

Bluetooth class with 1 mW | 1 meter?

A

Class 3

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85
Q

Which 802.11 version:
first Wi-Fi to operate in 5-Ghz
speeds up to 54 Mbps
about 150 feet range

A

802.11a

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86
Q

Which 802.11 version:
first Wi-Fi standard
speeds up to 11 Mbps
high likelihood of interference
300 ft range

A

802.11b

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87
Q

Which 802.11 version:
speeds up to 52 Mbps
300 ft range
2.4 Ghz ISM band, backwards compatable with 802.11b

A

802.11g

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88
Q

Which 802.11 version is the same as g, but adds the 5-Ghz band.

A

802.11n

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89
Q

Which 802.11 version requires all but hand-held devices to use multiple antennas to implement multiple in/multiple out (MIMO)?

A

802.11n

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90
Q

What does MIMO provide?

A

multiple connections and faster speeds

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91
Q

Which 802.11 version?
100+ Mbps
300+ feet
Runs on both 2.4 and 5 Ghz bands
Compatability: 802.11b, g, a (in some cases)
Security: SSID, MAC filtering, industry-standard WEP, WPA, WPA2

A

802.11n

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92
Q

Which 802.11 version is the first to employ transmit beamforming: a multiple antenna technology that helps get rid of dead spots?

A

802.11n

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93
Q

Which 802.11 version is the first to utilize dual-band operations: more advanced/expensive routers runs at both 5 Ghz and 2.4 Ghz?

A

802.11n

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94
Q

Which 802.11 version is the first to offer more streams, wider bandwidth and higher speed than 802.11n?

A

802.11ac (WiFi 5)

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95
Q

Which 802.11 version?
1+ Gbps
300+ feet
Security: SSID, MAC filtering, industry-standard WPA, WPA2
Compatability: 802.11a, b, g, n

A

802.11ac (WiFi 5)

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96
Q

Which 802.11 version is the first to offer a new version of MIMO called Multiuser MIMO (MU-MIMO).

A

802.11ac (WiFi 5)

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97
Q

What does Multiuser MIMO (MU-MIMO) provide?

A

Gives a WAP the ability to broadcast to multiple users simultaneously

98
Q

Which 802.11 version is the first to allow some WAPs support tri-band operations, adding a second 5-GHz signal?

A

802.11ac (WiFi 5)

99
Q

Which 802.11 version ?
9+ Gbps
300+ feet
original devices can use both the 2.4-Ghz and 5-Ghz bands
Security: SSID, MAC filtering, industry-standard WPA2, WPA3

A

802.11ax (WiFi 6)

100
Q

Wifi 6E is technically which specification?

A

802.11ax-2021

101
Q

Which bands does 6E devices use ?

A

2.4, 5, and 6-Ghz

102
Q

Which technology uses directional antennas, interconnects remote buildings when it’s hard or impractical to physically run cable to them?

A

Long-range fixed wireless

103
Q

Which Long-range fixed wireless, licensed or unlicensed, uses specific equipment, gets approval from the FCC and pays for a license to use a specific frequency?

A

Licensed

104
Q

Which Long-range fixed wireless, licensed or unlicensed, uses Wi-Fi standard (and the corresponding unlicensed spectrum) with special equipment?

A

Unlicensed

105
Q

How does power affect Long-range fixed wireless signals?

A

Travels further and penetrates more obstacles.

106
Q

T/F: There are regulations on how much power you can use with long-range fixed wireless?

A

True

107
Q

What technology uses chips embedded in mobile devices that create elecromagnetic fields when these devices are close to each other?

A

NFC

108
Q

What is the range of NFC?

A

a few centimeters to a few inches

109
Q

What technology is used to exchange contact information, small files, or payment transactions?

A

NFC

110
Q

What does a RFID tag consist of?

A

A chip and an antenna

111
Q

What can can electronically read and identify RFID tags even without line of sight of the item?

A

RFID scanner

112
Q

Most RFID tags are passive. What does that mean?

A

means it gets all the power it needs from the scanner’s signal

113
Q

Which network host is a special computer that keep database that associate IP addresses with names?

A

DNS

114
Q

Which network host manages a range of IP addresses and provides computers with an address from this pool?

A

DHCP Server

115
Q

What do computers connecting to the networks do to get a DHCP lease?

A

Broadcast a DHCP request

116
Q

Which networked host enables you to access a bunch of files and folders

A

Fileshare

117
Q

Which network host is computer that shares a printer/printers with other computers?

A

Print Server

118
Q

Anytime you plug a printer into a computer and share the printer over the network,what is it?

A

A print server

119
Q

T/F: some routers may have an integrated print server?

A

True

120
Q

T/F: print servers can always use all the features of a MFD?

A

False

121
Q

What is the networked host you use to access e-mail messages?

A

Mail server

122
Q

T/F: many mobile devices will query the e-mail server to configure port numbers and security types automatically?

A

True

123
Q

What is used in UNIX-based operating systems (maxOS and Linux) to create information placed in log files?

A

Syslog

124
Q

T/F: it’s common to have a single syslog server to collect syslog data from multiple systems?

A

True

125
Q

What networked host stores the files that make up a Web Site and provides access to Web sites.

A

Web servers

126
Q

What kind of programs are Apache HTTP Server and Microsoft Internet Information Services (IIS)?

A

Web Server Programs

127
Q

What network host is
- A server that authenticates users
- authorizes what resources they may access, and
- logs these actions for accountability

A

Authentication, authorization, and accounting (AAA)

128
Q

What are the main protocols of Authentication, authorization, and accounting (AAA)?

A

RADIUS and TACACS+

129
Q

Which internet application blocks spam sent to users?

A

Spam gateways

130
Q

Which internet application takes a traditional firewall and packages it with many other security services such as IPS, VPN, load balancing, antivirus, and many other features?

A

Unified threat management

131
Q

Which internet application spreads traffic out over several routes or servers?

A

Load balancers

132
Q

Which internet application enables multiple connections to the Internet to go through one protected computer?

A

Proxy servers

133
Q

Which legacy/embedded system is designed to manage processes that are spread out over a wide area?

A

Supervisory control and data acquisition (SCADA)

134
Q

Which system helps with the problem of operating the system safety when something temporarily disrupts connectivity between parts of the system?

A

Supervisory control and data acquisition (SCADA)

135
Q

What are devices which actively use the Internet on their own during regular operation?

A

Internet of Things (IoT) devices

136
Q

How many bits does IPv4 use?

A

32 bits

137
Q

“10.” refers to which class?

A

Class A

138
Q

“172.16-31” refers to which class?

A

Class B

139
Q

“192.168.” refers to which class?

A

Class C

140
Q

What type of addresses are Class A, B and C?

A

Private Addresses

141
Q

If an address is not Class A, B or C, what are they?

A

Public Addreesses

142
Q

What network field identifies the network vs the local computer?

A

Subnet Masks

143
Q

How many bits does IPv6 use?

A

128 bits

144
Q

IPv6 uses how many hexadecimal numbers?

A

8 sets of 4

145
Q

What does IPv6 use as a separator?

A

colons

146
Q

What are the three rules of IPv6 shorthand?

A
  • leading zeros can be removed
  • sets of 0 can be removed.
  • multiple consecutive 0 sets can be removed, but only once
147
Q

What is the IPv6 loopback address?

A

::1

148
Q

What is the IPv4 loopback address?

A

127.0.0.1

149
Q

What is the CIDR notation for IPv4 and IPV6 also known as?

A

prefix length

150
Q

In IPv6, the prefix is never longer than what?

A

/64

151
Q

How many of the last bits of an IPv6 address is generated by the NIC?

A

64

152
Q

In IPv6, what does the computer generate when first booted up?

A

The link local address

153
Q

In IPv6 link local address, what are the first 64 bits?

A

fe80::

154
Q

What two ways are the second 64 bits of a link-local address generated?

A

1: current operating systems generate a random number
2: old OS’s used the devices MAC address to create a number called an Extended Unique Identifier, 64-bit (EUI-64)

155
Q

In IPv6, as long as you don’t need to connect to the internet, what is all you need?

A

A Link Local Address

156
Q

In IPv6, to connect to the internet, you need what?

A

A global unicast address

157
Q

In IPv6, where does the computer get a global unicast address?

A

The default gateway router

158
Q

in IPv6, how does the computer get a global unicast address from the default gateway router?

A
  • when a computer is plugged into a network, it sends out a router solicitation (RS) message
  • router hears this message and responds with a router advertisement (RA)
  • RA tells the computer its network ID and subnet (together called the prefix) and DNS server
159
Q

in IPv6, when the computer has received the prefix from the default gateway, how does it generate the full IPv6 address?

A

The computer generates the rest of the address just like with the link local address

160
Q

What process automatically assigns an IP address to the system when the client cannot obtain an IP address automatically?

A

Automatic Private IP Addressing (APIPA)

161
Q

What is Automatic Private IP Addressing (APIPA) known as in non-Windows systems?

A

zeroconf

162
Q

What is the Automatic Private IP Addressing (APIPA) address range?

A

169.254.0.1 - 169.254.255.254

163
Q

In networking, what kind of address is entered manually?

A

A static address

164
Q

In networking, what kind of address is received automatically from DHCP server?

A

A dynamic address

165
Q

In networking, what is an IP address on the LAN side of your router?

A

The Gateway address

166
Q

What is how the DNS database keeps track of the names of individual systems on a network?

A

Address Records

167
Q

How are the Address Records annotated on IPv4 and IPv6?

A

A: IPv4
AAAA: IPv6

168
Q

On DNS, what enables the servers that handle outgoing e-mail to figure out where the e-mail for each domain should go?

A

Mail exchanger (MX)

169
Q

What do spam gateways check on domains that send it mail?

A

DKIM, SPF and DMARC records

170
Q

Which records enable receiving servers to verify that the message wasn’t modified in transit?

A

DomainKeys Identified Mail (DKIM) records

171
Q

Which records whitelists IP or DNS addresses allowed to send e-mail to its domain?

A

Sender Policy Framework (SPF) records

172
Q

Which records enable domain owners to indicate what receiving servers should do with email that fails DKIM or SPF checks?

A

Domain-based Message Authentication, Reporting and Conformance (DMARC) records

173
Q

Which records enable domain owners to receive reports from large e-mail providers about the origin of the mail received from the domain

A

Domain-based Message Authentication, Reporting and Conformance (DMARC) records

174
Q

When a computer is given an IP address from the DHCP pool, it is called what?

A

Leases

175
Q

When a computer is given a specific IP address when it sends a DHCP request, it is called what?

A

Reservations

176
Q

What is a range of IP addresses a DHCP server has to choose from?

A

Scope

177
Q

When managed switches create multiple LANs, it is called what?

A

Virtual LAN (VLAN)

178
Q

What is an encrypted tunnel between two points?

A

Virtual private networking

179
Q

A VPN tunnel entpoint acts as what?

A

A NIC

180
Q

Which Internet Connection Type?
- usually 25 Mbps download and 3 Mbps upload
- dishes usually professionally installed
- coax cable runs from dish to modem
- high equipment/installation costs,
- disconnects in bad weather, high latency, and usage limits are common

A

Satellite

181
Q

What Internet Connection Type uses light pulses?

A

Fiber

182
Q

AT&T Internet (FTTN) speed?

A

1-20 Mbps upload and 10-100 Mbps download

183
Q

AT&T Fiber (FTTP) speed?

A

300 Mbps to 6 Gbps download and upload

184
Q

Verizon Fios (FTTP) speed?

A

300 Mbps - 1 Gbps upload and download

185
Q

Google Fiber speed?

A

1-2 Gbps upload/download

186
Q

What Internet Connection Type?
- uses regular TV cables (RG-6 or RG-59)
- uses modem to change from TV cable to Cat 5/6
- 5-25 Mbps upload and 15-2000+ Mbps download

A

Cable

187
Q

What Internet Connection Type connects to ISP using a standard telephone line?

A

DSL

188
Q

What type of DSL has slow upload speed and fast download speed?

A

asymmetric (ADSL)

189
Q

What type of DSL has same upload and download speed, but may pay more for it?

A

symmetric (SDSL)

190
Q

What Internet Connection Type is referred to by the ComptTIA objectives as wireless WAN (WWAN)?

A

Cellular

191
Q

Which cellular generation was not designed to carry packetized data?

A

1G

192
Q

What did Global System for Mobile Communications (GSM) evolve into?

A

GPRS and EDGE –> UTMS, HSPA+ and HSDPA

193
Q

GPRS and EDGE is which generation?

A

2.5 G

194
Q

UTMS, HSPA+ and HSDPA is what generation?

A

3G and 3.5G

195
Q

Code Division Multiple Access (CDMA) evolved into what?

A

EV-DO

196
Q

EV-DO is what generation?

A

3G

197
Q

2 and 3 G provides what speed?

A

under 10 Mbps

198
Q

Long Term Evolution (LTE) 4G provides what speed?

A

1Gbps download and 100 Mbps upload

199
Q

What does the IMT-2020 spec say 5G should provide for speed?

A

20 Gbps, but real world is often much slower

200
Q

Which Internet Connection Type uses point-to-point long-range fixed wireless to get internet to the customer?

A

Wireless Internet Service Provider (WISP)

201
Q

What equipment does the customer need to install to get point-to-point long-range fixed wireless?

A

an antenna on the outside of their house

202
Q

What network type is a group of computers located physically close to each other?

A

Local area network (LAN)

203
Q

What network type is in the same broadcast domain?

A

Local area network (LAN)

204
Q

Are LANs connected to each other using switches or routers?

A

Switches

205
Q

What network type is a widespread group of computers connected using long-distance technologies?

A

Wide area network (WAN)

206
Q

Are WANs connected to each other using switches or routers?

A

Routers

207
Q

What network type links two computers via bluetooth for a quick wireless network?

A

Personal area network (PAN)

208
Q

What network type is an 802.11 network that covers a single city?

A

Metropolitan area network (MAN)

209
Q

In what network type does each server has access to block storage devices that live in a massive storage array?

A

Storage area network (SAN)

210
Q

What is the network protocol for Storage area network (SAN) ?

A

iSCSI

211
Q

What network type is like a LAN, but over IEEE 802.11

A

Wireless local area network (WLAN)

212
Q

What network tool does a tech use to attach an RJ45 to the end of a UTP cable?

A

Crimper

213
Q

What 4 steps are performed to use a Crimper?

A
  1. Cut the cable square using RJ45 crimpers or scissors
  2. Strip off one-half inch of plastic jacket from the end of the cable
  3. Slowly and carefully insert each individual wire into the correct location according to either ANSI/TIA 568A or B.
  4. Insert the crimp into the crimper and press
214
Q

What network tool strips wire and is often included with in a crimper?

A

Cable stripper

215
Q

What network tool is used to get information about Wi-Fi networks?

A

WiFi analyzer

216
Q

What network tool emits a sound when it is placed near a cable connected to the tone generator and is used to trace cables?

A

Toner probe

217
Q

What network tool connects UTP cables to a punchdown block, typically into a patch panel?

A

Punchdown tool

218
Q

What network tool verifies that all the individual wires are properly connected and in the correct location?

A

Cable tester

219
Q

What network tool is used in NIC diagnostic software to test a NIC?

A

Loopback plug

220
Q

What network tool is a piece of network monitoring hardware that sits between devices on the network and copies the traffic between them for later analysis?

A

Network tap

221
Q

What is an RU

A

A measurement of height in a server rack. 1RU = 1.75-inch

222
Q

In Windows, What command enables you to view a network quickly from the command line?

A

net view

223
Q

In Windows, How can you show any shares on a remote machine and whether they are mapped drives?

A

net view followed by computer name

224
Q

In Windows, which command would you use to map network shares?

A

net use [drive] [network path]

225
Q

In Windows, which command would you use to find your computer’s NetBIOS name?

A

nbtstat -n

226
Q

In Windows, which command would you use to find the NetBIOS name of a remote machine?

A

nbtstat -A [ip address]

227
Q

In Windows, which command would you use to see all the names that NetBIOS has in it’s local cache?

A

nbtstat -c

228
Q

What is a brand name of tone generator made by the Triplett Corporation?

A

Fox and Hound

229
Q

Which Wifi version has a max throughput of 100+ Mbps

A

802.11n

230
Q

Which Wifi version operates on 2.4 and 5Ghz?

A

802.11n

231
Q

Which Wifi version has a max throughput of 1+ Gbps?

A

802.11ac

232
Q

Which Wifi version operates only on the 5Ghz frequency?

A

802.11ac

233
Q

Which Wifi version has a max throughput of 9+ Gbps?

A

802.11ax

234
Q

Which Wifi version operates on 2.4, 5, and 6 Ghz?

A

802.11ax

235
Q

In what kind of network do devices act like routers, forwarding traffic for each other and with one device serving as the gateway?

A

Wireless Mesh Network (WMN)

236
Q

Which technology is considered 4G?

A

LTE

237
Q

What do organizations use to filter employee Internet access for unsafe content?

A

proxy server

238
Q

What allows organizations to monitor and restrict Internet access?

A

proxy server

239
Q

Ports (2) for TCP NetBIOS?

A

137, 139

240
Q

Ports (2) for UDP NetBIOS?

A

137, 138

A+ (10 decks)

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