ccnp sw ch 2
Which of the following devices performs transparent bridging?
A. Layer 3 switch
B. Ethernet hub
C. Layer 2 switch
When a PC is connected to a Layer 2 switch port, how far does the collision domain spread?
A. All ports on the switch
B. One VLAN
C. No collision domain exists
D. One switch port
What info is used to forward frames in a layer 2 switch?
A. Destination MAC address
B. Source MAC address
C. IP address
D. Source switch port
What does a switch do if a MAC address cannot be found in the CAM tables?
A. The frame is forwarded to the default port
B. The switch floods the frame out all ports (except the receiving port)
C. The switch drops the frame
D. The switch generates an ARP request for the address
In the Catalyst 6500, frames can be filtered with access lists for security and QoS purposes. This filtering occurs according to which of the following?
A. According to how the access lists are configured
B. After CAM table lookup
C. Before CAM table lookup
D. Simultaneously with a CAM table lookup
Access list contents can be merged into which of the following?
A. ARP table
B. TCAM table
C. FIB table
D. CAM table
Multilayer switches using CEF are based on which of these techniques?
A. Topology-based switching
B. Demand-based switching
C. Netflow switching
D. Route caching
Which answer describes multilayer switching with CEF?
A. The first packet is routed and then the flow is cached
B. The switching hardware learns station addresses and builds a routing database
C. The switch supervisor CPU forwards each packet
D. A single database of routing information is built for the switching hardware
In a switch, frames are placed in which buffer after forwarding decisions are made?
B. CAM table
C. Egress queues
D. Ingress queues
What size is the mask and pattern fields in a TCAM entry?
A. 64 bits
B. 134 bits
C. 168 bits
D. 128 bits
Access list rules are complied as TCAM entries. When a packet is matched against an access list, it what order are the TCAM entries evaluated?
A. Sequentially in the order of the original access list
B. All entries are evaluated in parallel
C. Alphabetically by the access list name
D. Numerically by the access list number
Which Catalyst IOS command can you use to display the addresses in the CAM table?
A. show mac-address-table
B. show cam address-table
C. show mac
D. show cam
What is the default time a CAM table holds idle entries?
What cmd changes the default time?
Ans. 300 seconds
G mac address-table aging-time
What cmd allows static CAM table entries?
G mac address-table static xxxx.yyyy.zzzz vlan 10 int fa0/1
What cmd allows you to monitor switching tables?
Show mac address-table dynamic address xxxx.yyyy.zzzz
Show mac address-table dynamic int gi 1/0/1
Show mac address-table count
You can also clear mac address-tables. Sub clear for show in above commands.
ccnp sw ch 2