200-301 VCE Exam Download

Cisco Certified Network Associate Questions and Answers

Question 181

How does QoS optimize voice traffic?

reducing bandwidth usage

by reducing packet loss

by differentiating voice and video traffic

by increasing jitter

Question 182

which purpose does a northbound API serve in a controller-based networking architecture?

communicates between the controller and the physical network hardware

reports device errors to a controller

generates statistics for network hardware and traffic

facilitates communication between the controller and the applications

Question 183

Which command on a port enters the forwarding state immediately when a PC is connected to it?

switch(config)#spanning-tree portfast default

switch(config)#spanning-tree portfast bpduguard default

switch(config-if)#spanning-tree portfast trunk

switch(config-if)#no spanning-tree portfast

Question 184

What are two fundamentals of virtualization? (choose two)

The environment must be configured with one hypervisor that serves solely as a network manager to monitor SNMP traffic

It allows logical network devices to move traffic between virtual machines and the rest of the physical network

It allows multiple operating systems and applications to run independently on one physical server.

It allows a physical router to directly connect NICs from each virtual machine into the network

It requires that some servers, virtual machines and network gear reside on the Internet