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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

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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)

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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)

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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 wireless 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

241
Q

How do you open a remote desktop connection?

A

On the remote PC, open Remote Desktop in settings and make sure it is on. Note the PC name.
On the local PC, open Remote Desktop Connection from the start menu, type in the remote PC name and connect.

242
Q

Cat 6 provides 10-Gbps over how long of a distance?

A

55 meters

243
Q

Cat 6A provides 10-Gbps over how long of a distance?

A

100 meters

244
Q

Cat 5 and Cat 5e can provide 1-Gbps using how many pairs of wires?

A

all 4 pairs

245
Q

Between single-mode and multi-mode fiber optics, which is more expensive?

A

Single-mode

246
Q

Does single-mode user lasers or LEDs?

A

Lasers

247
Q

Does multi-mode use lasers or LEDs?

A

LEDs

248
Q

What two cables are used to connect workstations with network devices

A

Straight through cable and patch cable

A+ (10 decks)

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