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CompTia Network+ > Troubleshooting Command Line > Flashcards

Troubleshooting Command Line Flashcards

1
Q

What is Ping?

A

Test connectivity between two devices on network with IPv4

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2
Q

What is Traceroute/Tracecert?

A

Displays path between your device (source) and the destination ip address including each route hop along the path.
- Tracecert -> Windows
- Traceroute -> Linux

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3
Q

What is ipconfig?

A
  • IP Configuration
  • View and renew TCP/IP configuration on a Windows system.
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4
Q

What is ifconfig?

A
  • Interface Configuration (deprecated)
  • View and renew TCP/IP configuration on a UNIX, Linux, or macOS system.
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5
Q

What is ip?

A
  • Enables you to configure network interfaces on Linux.
  • Older linux distribution uses ifconfig command.
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6
Q

What is nslookup?

A
  • Name Server Lookup
  • Performs manual DNS lookups
  • More depth than “dig” command
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7
Q

What is dig?

A
  • Used for troubleshooting DNS problems and display DNS information.
  • Only available for Linux, Unix, and OS X systems by default
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8
Q

What is hostname?

A

Display the hostname assigned to a particular host/computer.

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9
Q

What is arp?

A
  • Address Resolution Protocol (ARP)
  • Enables you to view and work with IP address to MAC address resolution cache
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10
Q

What is “route” command?

A

View and configure the routes in routing table in a Windows, Linux, Unix, or OS X system

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11
Q

What is netstat?

A
  • Network Statistics (netstat)
  • Windows command
  • Enables you to view the current TCP/IP connections on a system
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12
Q

What is telnet?

A

Remote access to a host in an unsecured manner

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13
Q

What is tcpdump?

A

Acts as a Linux-based packet analyzer

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14
Q

What is nmap?

A
  • Network Mapper (nmap)
  • Finds what ports are open and it is a popular vulnerability scanner
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15
Q

What are the 3 basic network commands?

A
  • Show interface
  • Show route
  • Show config
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16
Q

What is netstat -b?

A

Display names of applications and executable file components accessing network

17
Q

What is “show interface”?

A

Display statistics for the interface on configured on the router or access server.

18
Q

What is “show config”?

A

Display current system configuration

19
Q

What is “show route”?

A

Display routing table

20
Q

What is “show mac address-table”?

A

Display mac address table maintain by the device

21
Q

What is “show arp”?

A

Display ARP cache maintained by the router.

22
Q

What is “show vlan”?

A

Display information about VLANs configured on a switch or router in Cisco IOS-based networking environments.

23
Q

What is “show power”?

A

Display information about the power supply units and power usage on a switch or router in Cisco IOS-based networking environments.

CompTia Network+ (21 decks)

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