CCNP Switch Ch 9 (Incomp) Flashcards
Which one is NOT a valid supervisor redundancy mode?
RPR
SSO
RPR+
NSF
NSF
What is considered a best practice for an optimal redundant network?
Access switches should have redundant connections to redundant distribution switches.
Access switches should have a backup connection to at least one core device
Dual distribution switches should connect individually to separate core switches.
Three distribution switches should be implemented so that the third switch can take the role of active or standby, as necessary.
Access switches should have redundant connections to redundant distribution switches.
What are three benefits of implementing VSS in a network? (Choose three.)
Single management point
VSS is implemented in the access layer which supports a more simplistic design.
Supported on all platforms
Neighbors see the VSS as a single switch
VSS can logically combine up to 9 switches.
Interchassis stateful failover
Single management point
Neighbors see the VSS as a single switch
Interchassis stateful failover
Which one of the following features provides the fastest failover for supervisor or route processor redundancy?
RPR+
NSF
RPR
SS0
SS0
Which three redundancy modes are supported by Catalyst 6500 Series switches? (Choose three.)
Route Processor Redundancy (RPR)
Supervisor Engine 720 mirroring
Supervisor Engine 720 load balancing
Single Router Mode with Stateful Switchover (SRM with SSO)
Manual Switchover
Nonstop Forwarding (NSF) with SSO
Route Processor Redundancy (RPR)
Single Router Mode with Stateful Switchover (SRM with SSO)
Nonstop Forwarding (NSF) with SSO
Which command can be used to verify StackWise configuration to include their stack number, stack role, MAC address, hardware priority, hardware version and current state?
show version
show stack
show switch
show platform
show switch
What is the expected failover time for SSO mode for Layer 2 switching on the Catalyst 4500 family of switches?
Less than 3 seconds
Subsecond
1 to 2 minutes
None of the above
Subsecond
What are two characteristics of the StackWise technology? (Choose two.)
The stack can support up to 12 switches managed as a single unit.
The StackWise technology creates a virtual connection between the devices without additional cabling.
Multiple switches can create an EtherChannel connection.
Unites multiple access switches in the same rack.
Reduces the number of Layer 3 routing neighbors
Multiple switches can create an EtherChannel connection.
Unites multiple access switches in the same rack.
Which supervisor redundancy mode offers the fastest failover time?
SSO
RPR
RPR+
NSF
SSO
What is the main purpose of implementing Cisco NSF?
to continue forwarding IP packets following an RP switchover
to forward all STP updates to all switches in the network
to keep a backup copy of the latest MAC table in the event of RAM failure
to move switch ports that are currently in blocking mode to forwarding mode with minimal packet loss
to continue forwarding IP packets following an RP switchover
When using RPR, what two events can trigger a switchover from the active to the standby Supervisor Engine? (Choose two.)
clock synchronization failure between the Supervisor Engines
loss of packets from the root bridge
an RP or SP crash on the active Supervisor Engine
frames received on a port that is in blocking mode
port failure
clock synchronization failure between the Supervisor Engines
an RP or SP crash on the active Supervisor Engine
What are three characteristics of the VSS technology? (Choose three.)
VSS combines a pair of physical switches into a virtual switch.
Once the VSS is formed, only the control plan of one of the member’s is active.
VSS is a network system virutalization technology that combine a pair of Catalyst 3500, 4500 or 6500 series switches into one virtual switch.
VSS increases system bandwidth capacity.
VSS combines a pair of physical switches into a virtual switch.
Once the VSS is formed, only the control plan of one of the member’s is active.
VSS increases system bandwidth capacity.
A network administrator is designing a network with redundancy features such SSO with NSF. What protocol is should the administrator avoid while designing the routing topology?
BGP
RIP
OSPF
EIGRP
ISIS
RIP
To display configuration and status information for a VSS, which show command can be used?
show virtual switch
show vss brief
show switch virutal
show virtual link
show switch virutal
Which two technologies can be used to reduce the number of logical network devices and simplify Layer 2 and Layer 3 network toplogies? (Choose two.)
VSS
TCAM
NSF
VRRP
StackWise
VSS
StackWise
