10A

Question 1

What are some commonly used hardware troubleshooting tools?

Answer 1

1. Crimper
2. Cable tester
3. Loopback adapter
4. Punch down tool
5. Optical Time Domain Reflectometer (OTDR)
6. Light meter
7. Tone generator
8. Digitial Multimeter
9. Spectrum analyzer

Question 2

What is a crimper?

Answer 2

secures cable ends to connectors through application of mechanical pressure.

Question 3

What is a cable tester?

Answer 3

tests continuity and pin-out for disconnected cables.

Question 4

What is a loopback adapter?

Answer 4

performs cable tester functions on cables connected to a device.

Question 5

What is a punch down tool?

Answer 5

inserts and securely seats individual cable wires into contact slots.

Question 6

What does OTDR stand for?

Answer 6

Optical Time Domain Reflectometer

Question 7

What is an OTDR?

Answer 7

checks for breaks in fiber optic cable.

Question 8

What is a light meter?

Answer 8

checks for proper light propagation in fiber optic cables.

Question 9

What is a tone generator?

Answer 9

helps isolate a single cable within a larger bundle of cables.

Question 10

What is a digital multimeter?

Answer 10

measures voltage, resistance, and tests continuity in electrical circuits.

Question 11

What is a spectrum analyzer?

Answer 11

scans for amplitude across a domain of radio frequencies.

Question 12

What are some software troubleshooting tools?

Answer 12

1. Packet sniffer
2. Port scanner
3. Protocol Analyzer
4. Wi-Fi analyzer
5. Bandwidth speed tester

Question 13

What is a packet sniffer?

Answer 13

intercepts and logs network packets for malware/intrusion analysis

Question 14

What is a port scanner?

Answer 14

searches for unintentionally opened logical ports.

Question 15

What is a protocol analyzer?

Answer 15

shows information on all frames within your network (i.e., Wireshark).

Question 16

What is a Wi-Fi analyzer?

Answer 16

tests Wi-Fi signals for reliability, signal strength, and download speed.

Question 17

What is a bandwidth speed tester?

Answer 17

tests upload and download speed of a modem.

Question 18

CMD prompt Command Line Inputs - “ping”?

Answer 18

queries a given Internet Protocol (IP) address to verify network connectivity

Question 19

CMD prompt Command Line Inputs - “tracert”?

Answer 19

traces all the routers between two points, used to detect unresponsive routers

Question 20

CMD prompt Command Line Inputs - “nslookup”?

Answer 20

displays activity for a given domain name, used to diagnose DNS problems.

Question 21

CMD prompt Command Line Inputs - “ipconfig”?

Answer 21

displays IP settings for the computer on which this command is input.

Question 22

CMD prompt Command Line Inputs - “ifconfig”?

Answer 22

configures network interface.

Question 23

CMD prompt Command Line Inputs - “iptables” (UNIX ONLY)?

Answer 23

allows utility firewall settings.

Question 24

CMD prompt Command Line Inputs - “netstat”?

Answer 24

shows all active TCP sessions for a computer.

Question 25

CMD prompt Command Line Inputs “tcpdump” (UNIX only)?

Answer 25

same as Wireshark, but with only available in command line.

Question 26

CMD prompt Command Line Inputs “pathping”?

Answer 26

measures network latency and loss.

Question 27

CMD prompt Command Line Inputs “nmap”?

Answer 27

scans all devices on your network for vulnerabilities

Question 28

CMD prompt Command Line Inputs “route”?

Answer 28

display/edit the local systems routing table.

Question 29

CMD prompt Command Line Inputs “arp”?

Answer 29

display/edit the Address Resolution Protocol (ARP) table on a computer.

Question 30

CMD prompt Command Line Inputs “dig (UNIX only)”?

Answer 30

same as nslookup.