Network Access
400 questions
A network administrator needs to create a new Wireless LAN (WLAN) on a Cisco Wireless LAN Controller (WLC) using the GUI to allow client connectivity. Arrange the steps required to configure and activate the new WLAN in the correct sequential order.
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A network engineer is configuring network interfaces on a Cisco Wireless LAN Controller (WLC) to support enterprise wireless operations and administrative access. Which two statements accurately describe the operational roles and switch connectivity requirements of the WLC Management Interface compared to the Service Port? (Select TWO.)
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A network administrator configures an IEEE 802.1Q trunk link between two Cisco Catalyst switches. The trunk interface is configured to carry traffic for VLAN 10 (Data), VLAN 20 (configured as the native VLAN), and VLAN 30 (Voice). Which two statements accurately describe how traffic is processed over this trunk connection?
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A Cisco switch running Rapid PVST+ receives BPDUs on multiple interfaces from neighboring switches leading toward the Root Bridge. Place the tie-breaking criteria in the exact sequential order (from first evaluated to last evaluated) that the switch processes to elect its single Root Port.
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An enterprise desktop administrator reports that newly provisioned Linux endpoints attached to switch port GigabitEthernet0/1 consistently fail to receive an IPv4 address via DHCP during system startup. However, if the DHCP client service is manually restarted 40 seconds after the operating system boots, an address is acquired successfully. The switch port is configured as a standard 802.1D access port. Which interface configuration command combination immediately resolves the boot-time DHCP timeout while ensuring the switch port is protected against unauthorized switches creating Layer 2 loops?
A network technician needs to configure a new VLAN and assign a switch interface to it on a Cisco Catalyst switch. Arrange the following Cisco IOS commands in the correct sequence to create VLAN 20 and configure interface GigabitEthernet0/2 as a static access port in VLAN 20, starting from global configuration mode.
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Place the tie-breaker criteria used by a non-root switch running Rapid PVST+ to select its Root Port in the correct order, from first evaluated (highest priority) to last evaluated (lowest priority).
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When creating a new Wireless LAN (WLAN) on a Cisco Wireless LAN Controller (WLC) using the web GUI, under which tab within the WLANs Edit menu is Pre-Shared Key (PSK) authentication configured for WPA2-Personal wireless clients?
An administrator is configuring a trunk link between two Cisco Catalyst switches. Interface GigabitEthernet0/1 on Switch-1 is configured with `switchport mode dynamic auto` and `switchport trunk native vlan 50`. The connected interface GigabitEthernet0/1 on Switch-2 is configured with `switchport mode dynamic desirable` and `switchport trunk native vlan 10`. Which outcome will occur on this interswitch link?
A network administrator is deploying switch configurations for end-user workstation ports in an enterprise network. Which two statements correctly describe the operational benefits and state transition changes when Cisco STP PortFast is enabled on an access interface?
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A network engineer needs to configure a routed (Layer 3) EtherChannel bundle on a Cisco Catalyst switch using LACP active mode on physical interfaces GigabitEthernet0/1 and GigabitEthernet0/2, assigning the IP address 10.1.1.1/30 to the logical channel. In what sequential order should the configuration steps be executed on the switch CLI?
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A network administrator is setting up a Cisco Catalyst switch. Interface GigabitEthernet0/3 is connected to an end-user host that must belong to VLAN 45. VLAN 45 has not been previously created in the switch VLAN database. The administrator enters global configuration mode and executes the following commands:
Switch# configure terminal
Switch(config)# interface gigabitethernet0/3
Switch(config-if)# switchport access vlan 45
Which statement correctly describes the operational state of VLAN 45 and interface GigabitEthernet0/3 after these commands are executed?
In an enterprise network operating Rapid PVST+ for VLAN , three Catalyst switches are interconnected as follows:
- Switch-A is configured with a base bridge priority of and MAC address `0011.1111.1111`.
- Switch-B is configured with a base bridge priority of and MAC address `0022.2222.2222`.
- Switch-C is configured with a base bridge priority of and MAC address `0033.3333.3333`.
Switch-B and Switch-C both connect directly to Switch-A using single trunk links on interface GigabitEthernet 0/1. In addition, Switch-B and Switch-C are connected directly to each other via two parallel trunk links: Link 1 connects interface GigabitEthernet 0/2 on both switches, and Link 2 connects interface GigabitEthernet 0/3 on both switches. All switches maintain default port priorities of .
Based on Rapid PVST+ operations for VLAN , what are the port role and operational state of interface GigabitEthernet 0/3 on Switch-C?
An enterprise topology runs Rapid PVST+ across four switches for VLAN 40. Switch SW1 serves as the Root Bridge with a priority of (total priority with System ID Extension). Switches SW2 and SW3 are distribution switches, both configured with a base bridge priority of ( total). Switch SW4 is an access switch connected to SW2 via interface GigabitEthernet1/0/1 and to SW3 via interface GigabitEthernet1/0/2. All interconnecting links between switches are 10-Gigabit Ethernet (, cost ).
The MAC addresses of the distribution switches are:
- SW2 MAC: `0011.2233.4455`
- SW3 MAC: `0011.2233.6677`
Both SW2 and SW3 have direct single-link connections to SW1. Which statement correctly identifies the Rapid PVST+ port role and state for interface GigabitEthernet1/0/2 on Switch SW4, along with the precise technical reason?
An administrator is connecting a workstation to port FastEthernet 0/8 on a switch. Which interface configuration command must be executed to explicitly force the port into static access mode?
A network administrator is troubleshooting an issue where end-user workstations experience initial network connection timeouts and fail to obtain IPv4 addresses via DHCP upon booting up. The administrator decides to configure Cisco STP PortFast on the access-mode switch interfaces connected to these workstations. Which TWO operational benefits or behaviors occur as a result of enabling PortFast on these access ports? (Select TWO.)
Select all that apply
A network administrator configures a Cisco Lightweight Access Point (LAP) to assist in identifying unauthorized rogue devices on the enterprise network. After updating the operational mode of the access point via the Wireless LAN Controller (WLC), the administrator observes that both the 2.4 GHz and 5 GHz radios on the access point are disabled, and no SSIDs are being broadcast. However, the device actively reports rogue device MAC address correlations back to the WLC. Which statement correctly explains the operational behavior of the access point in this scenario?
A Cisco Catalyst switch is operating with default Rapid PVST+ settings. What total bridge priority value will the switch advertise in its BPDUs for VLAN 100?
Which primary operational benefit is achieved when Cisco STP PortFast is enabled on a switch access interface connected to an end-user host?
An enterprise network administrator deploys a Cisco Wireless LAN Controller (WLC). The Management Interface is assigned to VLAN 10 with IP address , and the Service Port is configured on an isolated network with IP address for out-of-band management. Engineers in the Network Operations Center (NOC) residing on subnet report that they can successfully ping and manage the WLC via HTTPS using the Service Port IP address (). However, lightweight Access Points (APs) located on subnet consistently fail to complete CAPWAP discovery and join procedures with the Management Interface (). Furthermore, NOC engineers cannot establish HTTPS or SSH sessions to , whereas administrative hosts directly connected to VLAN 10 can access without issue. Which of the following root causes accounts for both the AP CAPWAP join failure and the remote NOC management access timeout to the Management Interface?