CompTIA Network+ Practice Questions
Introduction: These practice questions cover commonly asked questions on the CompTIA Network+ Exam.
For better formatting, as well as the answers to this practice test, a full study guide (and 100+ flashcards) can be purchased from Amazon here:
Explain the following terminal/command line commands:
Wireshark
Ipconfig
Nslookup
Nbstat
Netstat
Tracert
Traceroute
Ping
Pathping
Arp
Mac Address Lookup Table
List the port numbers for the associated protocols, as well as a brief description of what they are used for:
POP3
NTP
NetBIOS
IMAP4
SNMP
HTTPS
SMB
H.323
MGCP
RDP
RTP
SIP
FTP DATA
FTP Control
SSH
TELNET
SMTP
DNS
DHCP
TFTP
HTTP
Ethernet Color Codes:
Standard 568A
Pin 1.)
Pin 2.)
Pin 3.)
Pin 4.)
Pin 5.)
Pin 6.)
Pin 7.)
Pin 8.)
Standard 568B
Pin 1.)
Pin 2.)
Pin 3.)
Pin 4.)
Pin 5.)
Pin 6.)
Pin 7.)
Pin 8.)
List the ranges for private IP addresses
Class A
Class B
Class C
A crossover cable is used to connect the following:
1.)
2.)
3.)
4.)
5.)
What mnemonic do we use to remember the OSI 7 Layer Model?
OSI 7 Layer Model — After listing the order of the layers, list the tools, hardware and functions of that layer.
The Internet Layer Model — After listing the order of the layers, list the tools, hardware and functions of that layer.
What mnemonics are used to remember the following fiber optic cable connectors (ST, SC & LC)?
ST Mnemonic:
SC Mnemonic:
LC Mnemonic:
Name the Seven Troubleshooting Methodology Steps:
1.)
2.)
3.)
4.)
5.)
6.)
7.)
Explain the following network attacks:
DoS
ARP Cache Poisoning
DNS Poisoning
Packet/Protocol Abuse
Spoofing
Man-in-the-middle
Logic Bomb
Ransom Ware
Social Engineering
Rogue Access Point
War Driving
Brute Force
Explain the following troubleshooting tools:
Line Tests
Certifiers
Multimeters
Cable Tester
Light Meter
Toner Probe
Punch Down Tool
TDR (Time Domain Reflector)
Loopback Adapter
Packet Sniffer
Port Scanner
Protocol Analyzer
Explain the following:
802.11a
802.11b
802.11g
802.11n
802.11ac
What are the binary multiples (i.e., the Binary Scheme?)
Class A Network Bites:
Class B Network Bites:
Class C Network Bites:
Switches make decisions based off of:
Routers make decisions based off of:
Define the following:
ESS — Extended Service Set
BSS — Basic Service Set
What are the following IPv6 prefixes used for?
FC00::/7
FE80::/10
2000::/3
FF00::/8
Name / describe the following records:
A -
AAAA -
PTR -
NS -
MX -
CNAME -
What are the wavelengths associated with Single Mode SMF?
What is the speed associated with Single Mode SMF?
What are the wavelengths associated with Multimode MMF?
What are the speeds associated with Multimode MMF?
If you have to use fiber over a long distance, which type of fiber optic cabling will you use?
What is a GBIC and SFP (gigabit interface converter and small form factor pluggable)?
