Cisco 800-150 Dumps Questions Answers

In a Class B network, the default subnet mask is 255.255.0.0, which allocates:​

16 bits for the network portion

16 bits for the host portion​

When the subnet mask is changed to255.255.255.0, it becomes:​

24 bits for the network portion

8 bits for the host portion​

This indicates that8 bitshave been borrowed from the host portion to create additional subnets. Borrowing bits allows for the division of the original network into smaller sub-networks, enhancing organization and security within the network.​

In theFLDTEC course, the process for removing or replacing asupervisor module— especially thestandbysupervisor— in a modular switch like theCisco MDS 9700is clearly outlined. Cisco documentation states:

"Before removing a standby supervisor module, it must first be placed into out-of-service mode using the CLI command system no supervisor <slot-number> or via the appropriate management interface."

This action ensures the systemacknowledges the supervisor is no longer participating in redundancy, allowing a safe and controlled removal without impacting system operations.

Why not the other options?

A. Shut down the entire switch→ Not required; MDS switches are built for high availability and allow hot-swap operations.

C. Disconnect all network interface cables→ This applies to line cards or interfaces, not to supervisor removal specifically.

D. Perform a manual failover→ Failover is requiredwhen removing the active supervisor, not the standby one.

Acrossover UTP (Unshielded Twisted Pair) cableis used to connect two similar devices directly. This includes:​

Switch to switch

Router to router

PC to PC​

The crossover cable reverses the transmit and receive pairs, allowing for proper communication between like devices without the need for an intermediary device.​

Conversely, astraight-through cableis used to connect dissimilar devices, such as:​

PC to switch

Router to switch

PC to router​

This cable maintains the same wiring on both ends, suitable for connecting different types of devices.​

Therefore, when connecting electrically like devices, a crossover cable is appropriate.​