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At a logistics provider, an implementation partner must prevent casual disclosure of client traffic over a shared wireless medium. Which choice best addresses the stated requirement?
Wi-Fi encryption protects radio frames against passive observation within its threat model.
SSID hiding is not link-layer data confidentiality; radio traffic still needs encryption and proper authentication.
Client MAC filtering is not cryptographic confidentiality and MAC identities can be spoofed over the wireless medium.
SSID suppression does not encrypt exchanged client frames.
At a school district, a network operations engineer must place three 2.4-GHz 20-MHz APs in adjacent cells with minimal channel overlap in a typical regulatory environment supporting these channels. During review, someone proposes: "Use adjacent channels 1, 2, and 3." Which technical explanation most directly shows why this proposal does not solve the requirement?
These overlap strongly in 2.4 GHz. The effective remedy is to assign non-overlapping channels 1, 6, and 11 as appropriate.
Security settings do not eliminate overlapping spectral emissions. It concerns a different proposed change, not the change being evaluated.
In common 2.4-GHz deployments, channels 1/6/11 minimize co-channel overlap for 20-MHz plans. That distinction is technically relevant elsewhere, but it does not identify the failure of the proposed use adjacent channels 1, 2, and 3. The actual issue is that these overlap strongly in 2.4 GHz.
An SSID names a WLAN rather than setting center frequency. The statement addresses a different mechanism. Here the engineer specifically proposed use adjacent channels 1, 2, and 3; the decisive limitation is that these overlap strongly in 2.4 GHz.
At an engineering company, the infrastructure lead needs users to discover a managed wireless network by a consistent name across several APs. During review, someone proposes: "Use a routing protocol process ID as the SSID." Which technical explanation most directly shows why this proposal does not solve the requirement?
An OSPF process identifier is not a wireless name. The effective remedy is to advertise the intended SSID consistently on the managed WLAN.
An SSID identifies the wireless network offered to associating clients. That distinction is technically relevant elsewhere, but it does not identify the failure of the proposed use a routing protocol process id as the ssid. The actual issue is that an OSPF process identifier is not a wireless name.
DNS cache lifetime does not advertise a WLAN. The statement addresses a different mechanism. Here the engineer specifically proposed use a routing protocol process id as the ssid; the decisive limitation is that an OSPF process identifier is not a wireless name.
A VLAN mapping error could affect forwarding after association, but does not explain why an OSPF process identifier cannot serve as an SSID.
At a logistics provider, a network administrator runs independent guest operating systems on one physical hypervisor host. Which choice best addresses the stated requirement?
A hypervisor hosts multiple guest OS environments with their own resource allocations.
A VLAN is network segmentation, not a virtual machine hypervisor.
A physical interface is not application isolation.
Network segmentation does not supply the distinct guest kernels and isolated VM execution the virtualization scenario requires.
At a clinic, the campus network lead needs lightweight deployment isolation for multiple app processes sharing the host kernel. Which choice best addresses the stated requirement?
Containers share the host kernel but isolate application execution environments.
User accounts may constrain permissions, but they do not provide the specified container packaging and namespace-based execution isolation.
Full virtual machines typically run separate guest kernels and have different overhead; they do not match the stated shared-kernel container model.
Containers usually do not provision a separate guest kernel per workload.
At a customer support center, a network operations engineer wants two logically separate routing tables on one router without using a separate physical router per tenant. Which choice best addresses the stated requirement?
VRFs maintain separate Layer 3 forwarding and routing-table contexts.
Different interface addresses do not isolate the routing information base; VRFs provide separate per-tenant routes.
Descriptions do not isolate route selection.
A global next hop does not establish independent VRF routes.
At a warehouse, the campus network lead has an application that depends on a different operating-system kernel and must avoid kernel-level coupling to the host. Which choice best addresses the stated requirement?
A VM runs a guest OS and has more independent kernel boundaries than ordinary containers.
Layer 2 segmentation does not change a container sharing its host kernel; the incompatible application requires a VM with its own guest OS.
VLAN segmentation does not change the OS kernel.
A standard container cannot substitute its own kernel freely.
At a distribution center, a network operations engineer sees a frame arrive on Gi1/0/8 from a previously unseen source MAC. Which choice best addresses the stated requirement?
Switches update their forwarding databases from source MACs observed on ingress.
Destination MACs determine forwarding lookups, not source learning.
The Layer 2 CAM table learns MAC addresses, not Layer 3 gateway routes.
Once a destination is learned, known unicast is forwarded selectively.
At a school district, the migration lead receives a unicast frame to an unknown destination MAC in VLAN 30. Which choice best addresses the stated requirement?
Unknown unicast flooding stays within its VLAN broadcast domain until the destination is learned.
Standard Ethernet learning bridges flood unknown destinations by default.
The frame is not normally reflected to the incoming port.
VLAN boundaries isolate Layer 2 flooding.
At a warehouse, the migration lead has a learned destination MAC reachable through Gi1/0/24 in VLAN 40 and receives a frame on Gi1/0/7. Which choice best addresses the stated requirement?
A learned MAC table match lets the bridge send known unicast to the correct output port.
Known unicast has a specific egress path and is not a VLAN-wide broadcast.
A normal Layer 2 bridge uses destination MAC for within-VLAN forwarding.
Learning makes forwarding more selective, not impossible.
At a payment processor, the campus network lead expects an old inactive host MAC entry to be removed automatically after the host is disconnected. Which choice best addresses the stated requirement?
Dynamic MAC entries expire after inactivity so the switch can relearn moved destinations.
Removing every VLAN interrupts legitimate traffic instead of normal aging.
ARP entries and switch CAM entries are separate state tables; switch MAC aging is controlled by its local MAC aging behavior.
ARP and bridge MAC aging are separate tables.
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