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CompTia Network+ > Other Network+ Things to Know > Flashcards

Other Network+ Things to Know Flashcards

1
Q

What types of interface issues?

A
  • CRC Errors
  • Runts
  • Giants
  • Drops
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1
Q

What is PDU?

A
  • Power Distribution Unit
  • A specialized device that distributes electric power to network components and computing equipment
  • Power management
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2
Q

What is a CRC?

A
  • Cylinder Redundancy Check Error
  • The data block’s integrity check does not match the value during transmission
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3
Q

What is Runts?

A

Frames smaller than the minimum frame size

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4
Q

What is Giants?

A

Frames that exceed the maximum frame size of the network

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5
Q

What is Drops?

A

Occur when a device’s buffer is full and can’t accommodate incoming frames or packets anymore

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6
Q

What is client disassociation issues in Wireless Network?

A
  • Impacts Wireless Network
  • Idle, Session, or Authentication Timeout
  • Wireless Network Change
  • Manual Deletion
  • Access Point Radio Reset
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7
Q

What is link aggregation?

A
  • Known as trunking, Ethernet bonding, NIC teaming
  • Combines multiple physical links into single logical combination
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8
Q

What half-duplex?

A

Can either send OR receive data

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9
Q

What is full-duplex?

A

Can send and receive data simultaneously

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10
Q

What is Logical Topology?

A

● Describes how data flows in the network
● Focuses on the logical connection rather than physical placement

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11
Q

What is Physical Topology?

A
  • Describes physical cabling and device connections
    ● Represents real-world layout using floorplans
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12
Q

DataCenter Topology
What is North-South Traffic?

A

Traffic that enters datacenter from outside (Southbound traffic)
Traffic that leaves data center (North traffic)

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13
Q

DataCenter Topology
What is East-West Traffic?

A

● Data flow within a datacenter
● Example: In a spine and leaf architecture, all data flow between
servers is considered east-west traffic

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14
Q

What is Routing Table?

A

■ Helps determine which route entry is the best fit for the network
■ Routing decisions are based on Layer 3 information and map to Layer 2

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15
Q

What is ARP Cache?

A

○ Used by routers to map IP addresses to MAC addresses within a local area network

16
Q

What is prefix length in subnet?

A

The prefix length is the number of 1 bits in the subnet mask, determines the size of the subnet.

Note: For example, a prefix length of 255.255.255.0 indicates that the network portion of the IPv4 address is the leftmost 24 bits, which can also be written as /24 in CIDR notation.

17
Q

What is Traffic Shaping?

A
  • Known as Packet Shaping
  • A congestion management method that regulates network data transfer by delaying the flow of less important or less desired packets.
18
Q

What is Port-side Exhaust Airflow? (Standard air)

A

Air is drawn into the switch through the power supply side and expelled through the port side.

19
Q

What is Port-side Intake Airflow?
(Reverse air)

A

Air is drawn into the switch through the port side (the side with the ethernet or fiber ports) and expelled through the power supply side.

20
Q

What is Packet Capture Sensor?

A
  • Known as network sniffers
  • Designed to intercept and analyze network packets.
21
Q

What is MDF?

A
  • Main Distribution Frame
  • Primary, central point where incoming and outgoing cables are terminated.
22
Q

What is IDF?

A
  • Intermediate Distribution Frame
  • Local distribution point within a building or campus.
23
Q

Which DHCP feature should they use to allocate different ranges of IP addresses to each department?

A

DHCP Scope

24
Q

What is a Network Heat-Map?

A
  • Known as WIFI Heat Map
  • A graphical representation indicating areas of high and low network activity or performance
25
Q

What is a PKI?

A
  • Public Key Infrastructure
  • Commonly used to manage digital certificates, ensuring secure communication and authentication over a network
26
Q

What is EUI?

A
  • Extended Unique Identifer
  • EUI-64 is a method we can use to automatically configure IPv6 host addresses.
27
Q

What is UPS?

A
  • Uninterruptible Power Supply
  • An electrical apparatus that provides emergency power during main power failures.
  • Typically last 15 to 30 minutes
28
Q

What is NTS?

A
  • Network Time Security
  • a time synchronization protocol designed to address security vulnerabilities inherent in traditional time synchronization protocols such as NTP and SNTP.
  • Provides strong authentication, integrity protection, and confidentiality for time synchronization messages.
29
Q

What is TableTop Exercise in pentration testing?

A

A cybersecurity simulation that tests an organization’s ability to respond to a cyber attack.

CompTia Network+ (21 decks)

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