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Why does a switch flood a frame to all ports?
A. The frame has zero destination MAC addresses.
B. The source MAC address of the frame is unknown
C. The source and destination MAC addresses of the frame are the same
D. The destination MAC address of the frame is unknown.
If a switch port receives a new frame while it is actively transmitting a previous frame, how does it process the frames?
A. The new frame is delivered first, the previous frame is dropped, and a retransmission request is sent.
B. The previous frame is delivered, the new frame is dropped, and a retransmission request is sent.
C. The new frame is placed in a queue for transmission after the previous frame.
D. The two frames are processed and delivered at the same time.
How is the native VLAN secured in a network?
A. separate from other VLANs within the administrative domain
B. give it a value in the private VLAN range
C. assign it as VLAN 1
D. configure it as a different VLAN ID on each end of the link
What is the purpose of a southbound API in a control based networking architecture?
A. Facilities communication between the controller and the applications
B. Facilities communication between the controller and the networking hardware
C. allows application developers to interact with the network
D. integrates a controller with other automation and orchestration tools.
What causes a port to be placed in the err-disabled state?
A. latency
B. port security violation
C. shutdown command issued on the port
D. nothing plugged into the port
Which switch technology establishes a network connection immediately when it is plugged in?
A. PortFast
B. BPDU guard
C. UplinkFast
D. BackboneFast
Which technology is appropriate for communication between an SDN controller and applications running over the network?
A. OpenFlow
B. REST API
C. NETCONF
D. Southbound API
What is a characteristic of private IPv4 addressing?
A. traverse the Internet when an outbound ACL is applied
B. issued by IANA in conjunction with an autonomous system number
C. composed of up to 65.536 available addresses
D. used without tracking or registration
Which security program element involves installing badge readers on data-center doors to allow workers to enter and exit based on their job roles?
A. role-based access control
B. biometrics
C. multifactor authentication
D. physical access control
Which network action occurs within the data plane?
A. compare the destination IP address to the IP routing table.
B. run routing protocols (OSPF, EIGRP, RIP, BGP)
C. make a configuration change from an incoming NETCONF RPC
D. reply to an incoming ICMP echo request