Cabling & Topology
This connector is used on most Cat6 Ethernet cables.
what is the RJ-45?
This port number is used for HTTP traffic.
What is port 80?
A user can ping their default gateway, but not reach the internet. The problem is likely at this OSI layer or above.
What is Layer 3 (Network) or higher?
This OSI layer deals with cables, connectors, and signaling.
What is the Physical layer?
This acronym stands for Wi‑Fi Protected Access.
What is WPA?
One advantage of this type of cabling is immunity to electromagnetic interference.
What is fiber optic cable?
This port number is used for DNS lookups.
What is port 53?
This network problem occurs when one device runs full‑duplex and another runs half‑duplex.
What is a duplex mismatch?
IP addresses operate at this OSI layer.
What is the Network layer?
This is currently the strongest wireless encryption for home Wi‑Fi networks.
What is WPA3?
This topology connects all devices to a central switch or hub.
What is a star topology?
This secure protocol uses port 22.
What is SSH?
This handheld tool verifies if an Ethernet cable is wired correctly.
What is a cable tester?
This layer uses port numbers to allow multiple applications to share the same network connection.
What is the Transport layer?
This type of cyberattack floods a network to make it unavailable.
What is a DoS or DDoS attack?
This cable type is used for 10GBaseSR Ethernet.
What is multimode fiber?
This port number is used for secure web traffic (HTTPS).
What is port 443?
This automatic IP address (169.254.x.x) appears when DHCP fails.
What is an APIPA address?
This OSI layer is responsible for logical addressing, routing, and determining the best path for data.
What is the Network layer?
This security device inspects network traffic and blocks threats in real time.
What is an Intrusion Prevention System (IPS)?
This wiring standard begins with pin 1 as white/orange.
What is T568B?
This protocol, used for network monitoring, operates on port 161.
What is SNMP?
Forgetting to configure this switch setting will prevent hosts in multiple VLANs from getting IP addresses from DHCP.
What is trunking (or VLAN configuration)?
This OSI layer handles encryption like SSL/TLS in some models.
What is the Presentation layer?
This wireless frequency band has less congestion but shorter range than 2.4 GHz.
What is 5 GHz?