NETW2 Logs

Error checking (via FCS (Frame Check Sequence)/CRC (Cyclic Redundancy Check)) and buffering, which also enables speed mismatch handling between ports. 1. Error Checking: The switch receives the entire frame (up to ~9,200 bytes for jumbo frames) It calculates the Frame Check Sequ...

Quiz: NETW2 / Switching Concepts | updated: Jul 30, 2026

VLAN (Virtual Local Area Network) 1 is the default VLAN on Cisco switches — it serves as the default data VLAN, native VLAN, and management VLAN, and it cannot be deleted or renamed. VLAN 1's three default roles: Default VLAN — all switch ports are members of VLAN 1 out of the b...

Quiz: NETW2 / VLANs | updated: Jul 30, 2026

Use show interfaces switchport to verify trunk settings. Reset to defaults with no switchport trunk allowed vlan and no switchport trunk native vlan. Verification with show interfaces fa0/1 switchport: Key fields to check: Administrative Mode: trunk — configured as trunk Operati...

Quiz: NETW2 / VLANs | updated: Jul 30, 2026

Enter the interface, set trunk mode with switchport mode trunk, optionally set the native VLAN (Virtual Local Area Network) and allowed VLANs list. Command sequence: S1(config)# interface fa0/1 S1(config-if)# switchport mode trunk S1(config-if)# switchport trunk native vlan 99 S1...

Quiz: NETW2 / VLANs | updated: Jul 30, 2026

The four types are: WPAN (personal, Bluetooth, ~10m), WLAN (local, Wi-Fi 802.11, ~100m), WMAN (metro, WiMAX 802.16, ~50km), and WWAN (wide, cellular 4G/5G, nationwide). Type Standard Range Frequency Example WPAN IEEE 802.15 6-9 meters (20-30 ft) 2.4 GHz Bluetooth, Zigbee...

Quiz: NETW2 / WLAN Concepts | updated: Jul 30, 2026

CAPWAP (Control And Provisioning of Wireless Access Points) enables a WLC (Wireless LAN Controller) to manage multiple APs (Access Points) via two UDP (User Datagram Protocol) tunnels: control (UDP 5246, encrypted with DTLS — Datagram Transport Layer Security) for management, and...

Quiz: NETW2 / WLAN Concepts | updated: Jul 30, 2026

Change the default admin password, update firmware, and change default SSID (Service Set Identifier)/password. Default credentials (often "admin/admin") are publicly documented and easily found on the internet — leaving them unchanged gives anyone instant access. First-priority a...

Quiz: NETW2 / WLAN Configuration | updated: Jul 30, 2026

1) Identify the problem → 2) Establish a theory of probable causes → 3) Test the theory → 4) Establish a plan and implement the solution → 5) Verify functionality and implement preventive measures → 6) Document findings. * Six-step WLAN (Wireless Local Area Network) troubleshoot...

Quiz: NETW2 / WLAN Configuration | updated: Jul 30, 2026

Cut-through starts forwarding a frame as soon as it reads the destination MAC (Media Access Control) address (the first 6-byte field after the preamble), without waiting for the rest of the frame. Fragment Free waits for the first 64 bytes to filter out collision fragments (runts...

Quiz: NETW2 / Switching Concepts | updated: Jul 30, 2026

A data VLAN (Virtual Local Area Network) carries user traffic, a native VLAN carries untagged trunk traffic, and a management VLAN is used for SSH/Telnet access to the switch. VLAN Type Purpose Key Detail Data VLAN Carries user-generated traffic (email, web, file shares) A...

Quiz: NETW2 / VLANs | updated: Jul 30, 2026