Ch4: Network Redundance

Question 1

Which of the statements below accurately describe spanning tree protocols? (Select three.)

A. They mitigate layer 2 loops, broadcast storms, and multiple frame copies.
B. Switches elect a root bridge, from which the spanning tree emanates.
C. All switch ports forward traffic, to improve resiliency.
D. When a link failure occurs, switches converge on a new topology.

Question 2

Match the descriptions to the correct STP version (802.1D STP, 802.1w RSTP, and 802.1s MSTP).

A. You map certain VLANs to a particular STP instance.
B. Default operation between AOS-CX switches.
C. Default mode for AOS-CX switches.
D. Improved convergence over older versions.
E. Slow convergence.
F. Not recommended.

Question 3

See Figure 4-45. Assuming default settings and normal operation, which interface will switch Access-1 use as its root port, and why does it choose that interface?

A. Port 1/1/1, because it is directly connected to the root
B. Port 1/1/1, because it has a lower port number
C. Port 1/1/2, because it has a higher port number
D. Port 1/1/2, because it has a lower cost

Question 4

Your colleague is confused about why a certain switch in your network was elected as the root switch. Which of the statements below would help your colleague understand this aspect of spanning-tree protocols? (Select two.)

A. Root switch election is based on the lowest bridge ID (BID) and the highest priority.
B. Root switch election is based on the lowest bridge ID (BID), which you can override by configuring a priority value on your preferred root switch.
C. The bridge ID (BID) is derived from an IP address on the device.
D. It is a best practice to manually configure a priority value on both your preferred root switch and backup root switch.

Question 5

Which statements below are true about the Virtual Router Redundancy Protocol (VRRP)? (Select two.)

A. It provides better first-hop redundancy as compared to configuring hosts with two default gateways (DGs).
B. With VRRP, two routing devices actively forward traffic.
C. You can define VRRP instances to improve load-sharing for VRRP deployments.

Question 6

Which statements below provide accurate comparisons of Aruba’s Virtual Switching eXtension (VSX) versus Aruba’s Virtual Switching Framework (VSF)? (Select three.)

A. Both solutions allow multiple devices to be perceived as a single device.
B. You typically run VSX on aggregation and core switches.
C. VSF can be easier to configure.
D. Like VSF, VSX maintains separate control and management planes.