Hardware for Troubleshooting
This tool is used to determine whether a cable is functional from end to end.
What is a cable tester?
This occurs when signals leak from one pair of wires to another, and tends to happen when wires are not twisted properly within a network cable.
What is crosstalk?
This cyberattack is typically accomplished by flooding the targeted machine or resource with superfluous requests to overload systems and prevent some or all legitimate requests from being fulfilled. The goal of this attack is to make a machine or network resource unavailable to its intended users.
What is a DoS (denial of service) attack?
This diagnostic tool is used for displaying the route and measuring transit delays of packets across an IP network. The history of the route is recorded as the round-trip times of the packets received from each successive host in the route.
What is traceroute?
This is the overall time a device should be up and running, but is not.
What is downtime?
This troubleshooting instrument has two parts; one generates a tone, and the other detects and plays the tone. This tool is useful for finding a cable among👀 a cluster of cables.
What is a tone generator and probe?
This occurs when cables are installed near electrical devices or fluorescent lights, and such devices can corrupt a signal within a cable.
What is EMI (electro-magnetic interference)?
This attack is the psychological manipulation of people info performing actions or divulging confidential information.
What is social engineering?
This utility is used to test the reachability of a host on an IP network. It measures the round-trip time for messages sent from the originating host to a destination computer echoed back to the source.
What is ping?
This refers to a network vulnerability that comes from an internal employee, contractor, or someone else with knowledge of a corporate network.
What is an internal threat?
This electronic instrument can measure voltage, current, and resistance.
What is a multimeter?
This is the weakening of a data signal over time.
What is attenuation?
Also known as a man-in-the-middle attack, this term refers to an attack where the attacker secretly relays and possibly alters the communication between two parties who believe they are directly communicating with each other.
What is an on-path attack?
This console application displays all current TCP/IP network configuration values and can modify DHCP and DNS settings. This is native to Windows systems.
what is ipconfig?
This is an action taken on a threat that does harm to a system.
What is an exploit?
This tool measures the signal from one end of a fiber optic cable to the other.
What is a fiber light meter?
What is a black hole?
This is a type of attack that consists of an attacker trying many passwords or passphrases with the hope of eventually guessing correctly.
What is a brute force attack?
This tool displays network connections for TCP, routing tables, several network interfaces, and network protocol statistics. This command is native to Unix-like systems.
What is Netstat?
This refers to a data packet that is under 64 bits in length
What is a runt?
This instrument injects a series of optical pulses into a fiber and extracts, from the same end of the fiber, light that is scattered or reflected from points along the fiber. Can be used to check for breaks and other issues in a fiber cable.
What is an OTDR (optical time-domain reflectometer)?
This cable problem usually occurs when a wire is cut, and can cause data to not make a full circuit in a cable.
What is an open fault?
This physical threat is the act of looking over someone's shoulder and capturing that person's activity with the intent of using that information to steal data or cause harm toa network at a later time.
What is shoulder surfing?
This tool is used to query the DNS to obtain domain name or IP address mapping or any other specific DNS record.
What is Nslookup?
This is the point at which the public switched telephone network ends and connects with the customer's on-premises wiring. It is the dividing line that determines who is responsible for installation and maintenance of wiring and equipment.
What is a demarcation point?