trouble shooting and tools
this command line tool is used to test basic connectivity.
what is ping
This security device inspects incoming and outgoing traffic to block unauthorized access based on a set of rules.
What is firewall
the standard 8 pin connector used for most twisted pair ethernet cables.
What is RJ-45
this layer is responsible for routing packets across different networks using logical addressing like IP.
what is Network Layer/Layer 3
in this physical topology, all devices are connected to a central hub or switch.
what is star topology
This hardware tool is used to "trace" a cable from a wall jack back to a messy patch panel by using a tone generator.
What is tone generator probe
This authentication proto col is commonly used for centralized "AAA".
What is radius
This fiber optic connector features a bayonet-style twist-on mechanism.
What is a straight tip connector
This OSI layer is responsible for electrical signals, cabling, and bit-level transmission.
What is the Physical layer/Layer 1
this logical grouping of network users allows them to be separated as if they were on different physical switches.
what is a VLAN
This windows command shows the path a packet takes to reach its destination, listing every route along the way.
What is tracert
This social engineering tactic involves tricking a user into providing sensitive information via a fake email or website.
What is Phishing
This type of interference occurs when electrical signals from one wire pair leak into an adjacent pair.
What is crosstalk
This is the protocol data unit found at layer 2 of the OSI model.
What is a frame
the value in an IP header is decremented by each router to prevent packets from looping forever.
what is TTL
This tool id used to verify that all eight wires in a twisted pair cable are terminated in the correct order on both ends.
What is a cable tester
This type of malware encrypts a user's data and demands payment for the decryption key.
What is ransomware
This cable type is required in air-handling spaces because it does not give off toxic fumes when burned.
What is plenum-rated cable
The protocol operates on port 433 and provides encrypted communications for web traffic.
What is HTTPS
this document describes the "standard operating procedures" and expected up time of a service between a provider and a customer.
what is an SLA
This command line tool is used on Linux/macOS to query DNS records, replacing the older nslookup.
What is dig
This VPN protocol uses a combination of AH and ESP provide data integrity and confidentiality.
What is IPsec
this small, square fiber connector is commonly referred to as the "little connector".
What is and LC connecter
This PDU is associated with Layer4 (transport) when using the TCP protocol.
What is a Segment
this value, usually 1500 bytes, defines the largest packet or frame size that can be sent over.