1 Network Infrastructure Foundations Free Online FlashCards

What is a network endpoint?

Endpoints are devices that use a network, such as computers, phones, printers, cameras, and servers.

How does a wireless access point connect Wi-Fi clients to a network?

An access point lets Wi-Fi clients join a network. Its wireless link connects a client to the AP, which commonly connects to a switch over Ethernet.

How do physical and logical network topologies differ?

A physical topology shows device and cabling locations; a logical topology describes traffic paths and network segments.

What does a VLAN do, and what is needed to route between VLANs?

A VLAN creates a separate logical Layer 2 segment on a switch. Communication between VLANs requires a router or Layer 3 switch.

Which IEEE standards families cover Ethernet and wireless LANs?

IEEE 802.3 covers Ethernet standards; IEEE 802.11 covers wireless LAN standards.

Why is a basic continuity check insufficient to certify a cabling link?

A continuity check alone does not certify that a completed link meets a performance specification; suitable testing equipment and recorded results are needed.

What ladder practices help reduce risks during network work?

Maintain three points of contact while climbing a ladder, and keep ladders and tools at least 10 feet from overhead power lines.

How does a Layer 2 switch forward Ethernet frames?

A Layer 2 switch forwards Ethernet frames within a LAN using learned MAC addresses.

What does a router do?

A router connects separate IP networks by examining packet addresses and forwarding traffic toward its destination.

What is a star topology, and what is one benefit?

In a star topology, endpoints connect to a central switch. A single endpoint cable failure usually affects only that endpoint.

What is the purpose of a network trunk?

A trunk carries traffic for multiple VLANs between compatible network devices.

What does an access port typically connect?

An access port typically connects an endpoint to one assigned VLAN.