GoConqr has a new look! Let us know what you think.

Sign up free

Flashcards

CompTIA Network+ Ch_3

Amber Saxon CompTIA Network+ English 179 cards

CompTIA Network+ Ch_3

Cards in this deck (179)

  1. 1How many octets does a Class A address use to represent the network portion?Only the first octet.
  2. 2What is the range that Class C addresses span in the first octet?192 to 223.
    subnet mask - 255.255.255.0
  3. 3What are the reserved IPv4 ranges for private networks?10.0.0.0
    172.16.0.0
    172.31.0.0
    192.168.0.0
  4. 4What is a node aka host?A node might be a client computer, a server, a printer, a router, or a gateway
  5. 5IP AddressingThere is a
    Network Segment and Host Segment
  6. 6IPv4Four sets of octets (8 binary bits)
  7. 7Octet8 binary bits
  8. 8IPv4 addresses contain how many bits?32-bits
  9. 9Each bit in each octet is assigned a decimal value. From left to right, what are the values?128,64,32,16,8,4,2,1
    11111111 = 255
  10. 10Decimal to Binary Conversion ValuesDecimal to Binary Conversion Values
  11. 11IP address Classes IP address space has 5 address classes. Which are assigned to clients?A, B and C
  12. 12IP address Classes What are Classes D and E reserved for?Class D - multicast addressing
    Class E - future development
  13. 13Class A uses how many octets to represent the network portion of IPv4 address?1 octet
  14. 14Class B uses how many octets to represent the network portion of IPv4 address?2 Octets
  15. 15Class C uses how many octets to represent the network portion of IPv4 address?3 Octets
  16. 16IPv4 Address ClassesIPv4 Address Classes
  17. 17What is the IPv4 Loopback address?127.0.0.1
  18. 18What does a subnet mask define?Networks and Hosts
  19. 19Default Subnet MasksDefault Subnet Masks
  20. 20Advantages of subnetting*Use IP addresses more effectively
    * Creating multiple networks, creates better security.
  21. 21SubnettingIncreases the number of network IDs.
  22. 22VLSMVariable Length Subnet Masking
    You can create
    * A long mask on networks with few hosts
    * A short mask on subnets with many hosts.
  23. 23Routing ProtocolsEIGRP, OSPF, RIPv2, IS-IS, BGP
  24. 24A Public NetworkIs a network which anyone can connect to.
  25. 25A Private NetworkHas restricted access.
  26. 26IANAInternet Assigned Numbers Authority
    Responsible for assigning IP addresses to public networks.
  27. 27Private Ranges Not allowed on internetPrivate Ranges Not allowed on internet
  28. 28CIDRClassless Interdomain Routing
    A Method of assigning IPv4 addresses outside of the standard Class A, B, C structure.
  29. 29the slasheg: 192.168.2.1/24
    Host IP address is 192.168.2.1
    subnet mask is 255.255.255.0
    www.subnetcalculator.com
  30. 30IPv4 Addressing Default GatewaysDefault gateways are the means by which a device can access hosts on other networks for which it does not have a specifically configured route
  31. 31Default GatewayIf a host does not have an IP addresses destination in its routing tables, then it will go thru the default gateway.
    The Default Gateway needs to be on the same network as the host. It could be a router or server.
    It is the pathway out of the network
  32. 32VIPVirtual IP
  33. 33IPv4 Address TypesUnicast,
    Multicast,
    Broadcast
  34. 34Unicast AddressA single address is specified.
    A Point to Point address link
  35. 35Broadcast AddressUsed to target all systems on a subnet or network.
    A broadcast message goes to everyone on the network.
  36. 36MulticastGroups of network devices can send/receive data between the members of the group one at a time.
  37. 37IPv4 total of IP addresses4,294,967,296
    Many are reserved
  38. 38IPv6Invented to handle growth of devices on the internet.
    Uses a 128-bit addressing scheme.
    Number of addresses:
    340,282,366,920,938,463,463,374,607,431,768,211,456.
  39. 39IPv6 addressing16-bit boundaries
    16-bit block converted into 4-digit Hexadecimal, spearated by colons.
    "Colon Hexadecimal". eg:
    2001:0:4137:9e50:2811:34ff:3f57:febc
  40. 40IPv6 Addressing SimplificationLeading 0's can be removed within each block.
    A contiguous series of 0's can be compressed to ::
    2001:0000:0000:0000:3cde:37d1:3f57:fe93
    2001::3cde:37d1:3f57:fe93
  41. 41IPv6 Address TypesUnicast, Global Unicast, Link-Local Address, Site-Local Addresses, Multicast Addresses, Anycast Addresses
  42. 42Stateless IP ConfigIP Autoconfig
    Automatically
  43. 43Stateful IP configDevices obtain information from a server
  44. 44Unicast IPv6 addressesData packets travel from sending host to destination host, in a direct line.
  45. 45Global Unicast AddressesPublic Addresses.
    Routable and travel throughout the network.
  46. 46IPv6 Link-Local AddressSimilar to APIPA (169.254.0.1)
    prefix is fe80::/64
    On a single-link IPv6 network with no router, used to communicate between devices on the lnk.
  47. 47Site-Local Addresses IPv6Private networks.
    The prefix is FEC0:/10
  48. 48Multicast Addresses IPv6Sends/receives data between groups of nodes.
  49. 49Anycast AddressAnycast delivers messages to any one node in the multicast group.
  50. 50NDPNeighbor Discovery Protocol
    Network Layer
    address autoconfig of nodes, discovery of nodes on link, determining addresses of other nodes, duplicate address detection, finding available routers and DNS servers, address prefix discovery, maintaining reachability information of other active neighbor nodes.
  51. 51Comparing IPv4 and IPv6 AddressingComparing IPv4 and IPv6 Addressing
  52. 52APIPAAutomatic Private IP Addressing
  53. 53IPv6 supports dual stack.Both IPv4 and IPv6 can run on the same network.
    used for adoption and deployment phases
  54. 54Static AddressingManual assignment of IP addresses to a system
  55. 55Dynamic AddressingAuto assignment of IP addresses with DHCP.
  56. 56DHCP ScopesRanges of IP addresses
    DHCP
  57. 57DHCP LeaseServer assigns ip addresses (from scope) for a predetermined amount of time.
  58. 58Who needs Static IPs?DHCP Servers
    DNS server
    Web Server, etc
  59. 59Connecting to TCP/IP network1. IP Address
    2. Subnet Mask
    3. Default Gateway
    4. DNS Server Addresses
  60. 60DHCP6is for IPv6 addresses
  61. 61BOOTPBOOT Protocol
  62. 62APIPAAutomatic Private IP Addressing
    APIPA will automatically assign a device an IP address if DHCP is unavailable.
    Do not config gateway address.. therefore, restricted to local network.
    They begin with:
    169.254.0.0
    255.255.0.0
  63. 63MAC AddressPhysically embedded into the interface
    on the NIC
    Network Interface Card.
    6-byte (48-bit) hexadecimal address
  64. 64MAC OUIOrganizational Unique Identifier
    The first 3 bytes (00:D0:59) identifies the manufacturer of the device
  65. 65Universal LAN MAC AddressThe last 3bytes (09:07:51) of MAC address
  66. 66MAC Address Hexadecimal0 to 9
    A to F
  67. 67Viewing the MAC Addresses of NICsViewing the MAC Addresses of NICs
  68. 68MAC EUI EUI48 EUI64Extended Unique Identifier
    EUI48 - 48bit MAC address
    EUI64 - 64bit MAC address
  69. 69NATNetwork Address Translation
    only one registered IP address is needed on the system’s external interface, acting as the gateway between the internal and external networks.
    Teredo / Miredo
  70. 70PATPort Address Translation
    all systems on the LAN are translated to the same IP address, but with a different port number assignment
    only a single IP address exposed to the public network, and multiple network devices access the Internet through this exposed IP address. The sending devices, IP address, and port number are not exposed
  71. 71SNATStatic Network Address Translation
    SNAT directly maps a private IP address to a static unchanging public IP address
  72. 72DNATDestination Network Address Translation
    AKA Port Forwarding
    can be implemented on any router to change the destination IP address on a packet (and do the inverse operation on replies).
  73. 73What is the IPv6 equivalent of 127.0.0.1? a) 0:0:0:0:0:0:0:1 b) 0:0:0:0:0:0:0:24 c) ::1 d) ::24c) ::1
  74. 74Which of the following is a Class B address? ❍ A. 129.16.12.200 ❍ B. 126.15.16.122 ❍ C. 211.244.212.5 ❍ D. 193.17.101.27❍ A. 129.16.12.200
  75. 75You are the administrator for a network with two Windows Server systems and 65 Windows desktop systems. At 10 a.m., three users call to report that they are experiencing network connectivity problems. Upon investigation, you determine that the DHCP server has failed. How can you tell that the DHCP server failure is the cause of the connectivity problems experienced by the three users? ❍ A. When you check their systems, they have an IP address of 0.0.0.0. ❍ B. When you check their systems, they have an IP address in the 192.168.x.x address range. ❍ C. When you check their systems, they have a default gateway value of 255.255.255.255. ❍ D. When you check their systems, they have an IP address from the 169.254.x.x range.❍ D. When you check their systems, they have an IP address from the 169.254.x.x range.
  76. 76Which of the following address types are associated with IPv6? (Choose three.) ❍ A. Broadcast ❍ B. Multicast ❍ C. Unicast ❍ D. AnycastB. Multicast
    ❍ C. Unicast
    ❍ D. Anycast
  77. 77Which of the following IP addresses is not from a private address range? ❍ A. 192.168.200.117 ❍ B. 172.16.3.204 ❍ C. 127.45.112.16 ❍ D. 10.27.100.143❍ C. 127.45.112.16
  78. 78You have been assigned to set up a new network with TCP/IP. For the external interfaces, you decide to obtain registered IP addresses from your ISP, but for the internal network, you choose to configure systems by using one of the private address ranges. Of the following address ranges, which one would you not consider? ❍ A. 192.168.0.0 to 192.168.255.255 ❍ B. 131.16.0.0 to 131.16.255.255 ❍ C. 10.0.0.0 to 10.255.255.255 ❍ D. 172.16.0.0 to 172.31.255.255❍ B. 131.16.0.0 to 131.16.255.255
  79. 79You ask your ISP to assign a public IP address for the external interface of your Windows server, which is running a proxy server application. In the email message that contains the information, the ISP tells you that you have been assigned the IP address 203.15.226.12/24. When you fill out the subnet mask field on the IP configuration dialog box on your system, what subnet mask should you use? ❍ A. 255.255.255.255 ❍ B. 255.255.255.0 ❍ C. 255.255.240.0 ❍ D. 255.255.255.240❍ B. 255.255.255.0
  80. 80What are the most distance-vector routing protocols?Distance-vector routing protocols include RIP, RIPv2, and EIGRP. Of these, RIPv2 would be the most popular from the exam’s perspective.
  81. 81What are the most common link-state protocols?Link-state protocols include OSPF and IS-IS.
  82. 82What is convergence?Convergence represents the time it takes routers to detect change on the network.
  83. 83What term is used when specific routes are combined into one route?The term route aggregation applies when specific routes are combined into one route.
  84. 84True or false: With the help of FSL, STP avoids or eliminates loops on Layer 2 bridges.False. With the help of Spanning Tree Algorithm (STA), STP avoids or eliminates loops on a Layer 2 bridge.
  85. 85A Router uses two pieces of information*The Gateway Address
    *The Routing Tables
  86. 86Default GatewayIs the Router's IP Address.
    The pathway in and out of network.
    Often configured automatically by DHCP.
  87. 87Routing TablesBefore a data packet is forwarded, a chart is reviewed to determine the best possible path for the data to reach its destination. This chart is the computer’s routing table.
    Use "route print" command to view the routing table on a client system
  88. 88Routing TableRouting Table
  89. 89Routing Table InfoNETWORK DESTINATION
    NETMASK
    GATEWAY
    INTERFACE
    METRIC: A measurement of the directness of a route. The lower the metric, the faster the route
  90. 90Static Routingroutes and route information are manually entered into the routing tables.
    use the "route add" command:
    route add 192.168.2.1 mask (255.255.255.0) 192.168.2.4
    The "route add" command with the -p switch makes the static route persistent. You
  91. 91Switching Methods*Packet Switching
    *Circuit Switching
  92. 92Packet Switching*messages are broken into smaller pieces called packets.
    *Each packet is assigned source, destination, and intermediate node addresses
  93. 93Packet Switching Independent Routing*Lets packets travel different routes to avoid high-traffic areas.
    *alternative routes can be taken if a particular route is unavailable.
  94. 94Packet-switching Receiving DeviceThe receiving device can receive the packets in a nonsequential order.
    *The receiving device waits until all the data packets are received, then reconstructs them according to sequence numbers.
  95. 95Types of Packet-Switching*Virtual-circuit Packet Switching
    *Datagram Packet Switching
  96. 96Packet-Switching Virtual-circuit packet switchingA logical connection is established between the source and the destination device. All packets travel this path until closed.
  97. 97Packet-Switching Datagram Packet SwitchingThe packets are independently sent, and can take different paths through the network to the destination.
    each packet is individually addressed to source and destination
  98. 98Circuit Switchingcircuit switching requires a dedicated physical connection between the sending and receiving devices.
    The sending system establishes a physical connection, and the data is transmitted between the two. When the transmission is complete, the channel is closed.
  99. 99Circuit Switching applicationsPSTN - Public Switched Telephone Network
    ISDN - Integrated Services Digital Network
  100. 100PSTN- Public Switched Telephone Network
  101. 101ISDNISDN - Integrated Services Digital Network
  102. 102Comparison of Switching MethodsComparison of Switching Methods
  103. 103SDNSoftware-defined Networking
    The goal of SDN is to not only add dynamic capabilities to the network, but to also reduce IT costs through implementation of cloud architectures. SDN combines network and application services into centralized platforms that can automate provisioning and configuration of the entire infrastructure.
  104. 104Dynamic RoutingRouters use routing protocols to communicate.
    They pass on information about themselves to other routers for building routing tables.
  105. 105Types of Dynamic Routing*Distance-Vector Routing
    *Link-State Protocol
    *Hybrid
  106. 106Dynamic Routing Distance-Vector RoutingEach router on the network communicates all the routes it knows about to the routers to which it is directly attached.
  107. 107HopsOn a network, each router represents a "hop".
  108. 108tracertdisplay number of "hops" a packet takes to reach destination.
  109. 109Tracert for IPv6tracert -6
    traceroute6
    traceroute -6
  110. 110Types of Distance-Vector ProtocolsRIP - Routing Information Protocol
    EIGRP - Enhanced Interior Gateway Routing Protocol
  111. 111RIPRouting Interior Gateway Routing Protocol
    Distance-Vector Routing Protocol
    limited to a max of 15 hops.
    Original RIP did not support router authentication.
    Network-wide broadcast discovery
  112. 112RIPv2Routing Information Protocol v2
    Distance-Vector Routing Protocol
    Authentication enabled for secure transmission.
    multicast discovery to reduce network traffic.
    limit of 15 hops.
  113. 113EIGRPEnhanced Interior Gateway Routing Protocol
    Routers exchange info more efficiently.
    Keeps copies of neighbors routing tables to find best routes.
    Uses DUAL - Diffusing Update Algorithm to determine best route.
  114. 114DUALEIGRP Uses DUAL - Diffusing Update Algorithm to determine best route.
  115. 115ConvergenceThe process by which routers learn of a change in the network topology is called convergence
  116. 116Routing LoopsRouting loops can occur on networks with slow convergence.
  117. 117Distance-Vector Routing ProtocolsEach router sends updates to each other either automatically every 30 or 60 secs.
    or with a "triggered update".
  118. 118Routing loops can be avoided with..*Split Horizon
    * Poison Reverse aka (Split Horizon with Poison Reverse)
  119. 119Routing Loop avoidance Split HorizonWorks by preventing the router from advertising a route back to the other router from which it was learned. This prevents two nodes from bouncing packets back and forth between them, creating a loop.
  120. 120Routing Loop avoidance Poison ReverseDictates that the route is advertised back on the interface from which it was learned, but it has a hop count of infinity, which tells the node that the route is unreachable.
  121. 121Link-State Routing*builds a map of the entire network and then holds map in memory.
    *Routers send LSAs (Link State Advertisements) that contain info on the network.
  122. 122Link-State Routing LSALink-State Advertisements
    LSAs detect changes in network and update routers to update maps.
    Routers need more RAM for LSA.
  123. 123Link-State Protocols include:OSPF - Open Shortest Path First
    IS-IS - Intermediate System to Intermediate System.
  124. 124Link State Protocol OSPFOpen Shortest Path First
    Network Layer Protocol
    Base on SPF (Shortest Path First) Algorithm
    Tunneling Features
  125. 125Link State Protocol IS-ISIntermediate System-to-Intermediate System
    Uses SPF (Shortest Path First) Algorithm
    IS-IS routers distribute topology information to other routers
  126. 126IGPInterior Gateway Protocol
    Used on LANs. RIPv2, OSPF and Is-IS
  127. 127EGPExterior Gateway Protocol
    Used WAN, such as Internet
    BGP (Border Gateway Protocol) is an eg of EGP
  128. 128Hybrid Routing Protocol BGPBGP - Border Gateway Protocol
    BGP examines the routing table, list of known routers, the addresses they can reach, and a cost metric associated with the path to each router so that the best available route is chosen.
    BGP supports the use of ASN (Autonomous System Numbers)
  129. 129ASNBGP supports the use of ASN (Autonomous System Numbers)
  130. 130Network Access MethodsCSMA/CD
    CSMA/CA
  131. 131Network Access Methods CSMA/CD Contention Media Access MethodCarrier Sense Multiple Access /
    Collision Detection
    when a system wants to send data to another system, it checks to see if the network is free.
    If a collision happens, it waits. Called "Backoff" period.
  132. 132Network Access Methods CSMA/CACarrier Sense Multiple Access /
    Collision Avoidance
    Uses a broadcast method to signal its intention to transmit data.
    "Listen before talking"
    The system “listens” for a clear channel to transmit. If it is busy, a backoff interval is initiated that is less than the first. The process continues until the wait time reaches zero, and the medium is clear.
  133. 133Network Access Methods CSMA/CAUsed in 802.11 wireless standards.
  134. 134Routing MetricsHop Counts
    Maximum Transmission Units (MTU)
    Bandwidth
    Costs
    Administrative Distance
    Latency
  135. 135Routing Metrics Hop Countsthe number of hops necessary to reach a node. A hop count of infinity means the route is unreachable.
  136. 136Routing Metrics MTUsMaximum Transmission Unit
    The largest data unit that can be passed without fragmentation
  137. 137Routing Metrics Bandwidththe max packet size permitted for Internet Transmission
  138. 138Routing Metrics Coststhe numbers associated with traveling from point A to point B (often hops). The lower the total costs (the fewer links in the route), the more that route should be favored.
  139. 139Routing Metrics Administrative distancea numerical value assigned to a route based on its perceived quality. The number may be manually assigned, or assigned based on an algorithm employed by a routing protocol. The lower the number, the better the route is believed to be: 0 is the best and 255 is the worst.
  140. 140Routing Metrics LatencyLatency is the amount of time it takes for a packet to travel from one location to another.
  141. 141SPBShortest Path Bridging
    Replacing Spanning Tree Protocol
    allows for multiple equal cost paths, leading to faster convergence times and improving the use of mesh topologies for increased bandwidth
  142. 142VLANVirtual Local Area Network
    Segments Network for:
    *Increased Performance
    *Reduced Bottlenecks
    *Increased Security
    Create Multiple Broadcast Domains on single switch
  143. 143VLAN VTPVLAN Trunking Protocol
    Cisco
  144. 144VLAN Port BindingDetermines whether and how a port is bound. This can be done in one of three ways: static, dynamic, or ephemeral.
  145. 145VLAN Port Aggregationis the combining of multiple ports on a switch, and it can be done one of three ways: auto, desirable, or on.
  146. 146VLAN LACPLink Aggregation Control Protocol
    is a common aggregation protocol that allows multiple physical ports to be bound together. Most devices allow you to bind up to four, but some go up to eight.
  147. 147VLAN Membership AssignmentProtocol-based VLANs:
    Port-based VLANs:
    MAC addres-based VLANs:
  148. 148VLAN Network SegmentationVLAN Network Segmentation
  149. 149STPSpanning Tree Protocol
    Designed to prevent Switching Loops
    Used with Network Bridges and Switches.
    STA (Spanning Tree Algorithm)
    Can block or disable problem ports.
  150. 150STP and BPDUSTP uses Bridge Protocol Data Units
    to identify the status of ports and bridges across the network
  151. 151STP and BPDU Redundant paths and potential loops can be avoided within ports in several ways:Blocking: A blocked port accepts BPDU messages but does not forward them.
    ▶ Disabled: The port is offline and does not accept BPDU messages.
    ▶ Forwarding: The port is part of the active spannning tree topology and forwards BPDU messages to other switches
    ▶ Learning: In a learning state, the port is not part of the active spanning tree topology but can take over if another port fails. Learning ports receive BPDUs and identify changes to the topology when made.
    ▶ Listening: A listening port receives BPDU messages and monitors for changes to the network topology.
  152. 152RSPANRemote Switched Port Analyzer
    (port mirroring)
  153. 153SPANSwitched Port Analyzer
    (Port Mirroring)
  154. 154Trunking Link Aggregationthe use of multiple network cables or ports in parallel to increase the link speed beyond the limits of any one cable or port
  155. 155AggregationThe term route aggregation applies when specific routes are combined into one route
  156. 156VLAN Trunkingtrunking provides a simple and cheap way to offer a nearly unlimited number of virtual network connections
  157. 157Port Mirroringto monitor network traffic.
    To use port mirroring, a copy of inbound and outbound traffic is analyzed by A protocol analyzer with focus on PORT.
  158. 158Port Authenticationauthenticating users on a port-by-port basis.
  159. 159PoEPower Over Ethernet
  160. 160DMZA DMZ is part of a network to be accessed outside and inside your network.
    The DMZ is not connected directly to either network, and it must always be accessed through the firewall.
  161. 161MAC Address TableWhen the switch receives a frame, it associates the MAC address of the sending network device with the LAN port on which it was received and dynamically builds a MAC address table by using the source address of the frames received.
  162. 162Switch ManagementDevices can be managed several ways: using Simple Network Management Protocol (SNMP), Windows Management Instrumentation (WMI), or Intelligent Platform Management Interface (IPMI). If the monitoring of devices is done remotely, this is known as out-of-band management; otherwise, it is known as
    in-band mgt.
  163. 163snmpSimple Network Management Protocol
  164. 164WMIWindows Management Instrumentation
  165. 165IPMIIntelligent Platform Management Interface
  166. 166in-band management out-of band managementin-band management - local
    out-of band management - remote
  167. 167Managed and Unmanaged SwitchesIf you can config - managed
    Plug n Play - Unmanaged
  168. 168QoSQuality of Service
    manage, and increase the flow of network traffic.
    Prioritizes certain traffic such as VoiP or gaming.
    Latency Sensitive: VoiP and streaming
    Latency Insensitive: backups and FTP
  169. 169Traffic ShapingEnsures adequate bandwidth is available for mission-critical applications while few resources are dedicated to spam or peerto-peer downloads.
    Monitor Traffic
  170. 170ACLAccess Control Lists
    the list of what is allowed by the entity trying to access.
    Allowed or Deny certain users or tasks, ports, websites etc
  171. 171Which of the following best describes the function of the default gateway? ❍ A. It provides the route for destinations outside the local network. ❍ B. It enables a single Internet connection to be used by several users. ❍ C. It identifies the local subnet and formulates a routing table. ❍ D. It is used to communicate in a multiple-platform environment.❍ A. It provides the route for destinations outside the local network.
  172. 172What is the term used for the number of hops necessary to reach a node? ❍ A. Jump list ❍ B. Link stops ❍ C. Connections ❍ D. Hop count❍ D. Hop count
  173. 173Which of the following enables administrators to monitor the traffic outbound and inbound to the switch? ❍ A. Spanning Tree Algorithm ❍ B. Trunking ❍ C. HSRP ❍ D. Port mirroringD. Port mirroring
  174. 174Which of the following is the IEEE specification developed to ensure interoperability of VLAN technologies from the various vendors? ❍ A. 802.1z ❍ B. 802.1s ❍ C. 802.1Q ❍ D. 802.1XC. 802.1Q
  175. 175Which of the following is a proprietary protocol from Cisco used to reduce administration in the switched network? ❍ A. VTP ❍ B. VNMP ❍ C. VCPN ❍ D. VNMC❍ A. VTP
  176. 176Which of the following is PoE+ also known as? ❍ A. 802.3aa ❍ B. 802.3ac ❍ C. 802.3af ❍ D. 802.3at❍ D. 802.3at
  177. 177VLSMVariable Length Subnet Masking
  178. 178SDNSoftware-Defined Networking
  179. 179—

Information

Description
CompTIA Network+ Flashcards on CompTIA Network+ Ch_3, created by Amber Saxon on 29/05/2020.
Created by
Amber Saxon
Views
2
Rating

Feedback

What is it about?

What do you think of the new look?

How do you like it?