CiscoB Exam 1
What are two advantages of modular switches over fixed-configuration switches? (Choose two.)
1. increased scalability 2. need for fewer power outlets
A network designer must provide a rationale to a customer for a design which will move an enterprise from a flat network topology to a hierarchical network topology. Which two features of the hierarchical design make it the better choice? (Choose two.)
1. simpler deployment for additional switch equipment 2. easier to provide redundant links to ensure higher availability
What are two reasons a network administrator would segment a network with a Layer 2 switch? (Choose two.)
1. to isolate traffic between segments 2. to enhance user bandwidth
There are_____ collision domains in the topology.
12
There are ____ broadcast domains in the topology
5
An administrator purchases new Cisco switches that have a feature called StackPower. What is the purpose of this feature?
It enables the sharing of power among multiple stackable switches.
Refer to the exhibit. How is a frame sent from PCA forwarded to PCC if the MAC address table on switch SW1 is empty?
SW1 floods the frame on all ports on SW1, excluding the port through which the frame entered the switch.
What is a collapsed core in a network design?
a combination of the functionality of the distribution and core layers
What is a basic function of the Cisco Borderless Architecture distribution layer?
aggregate layer 3 routing boundries
Which type of transmission does a switch use when the destination MAC address is not contained in the MAC address table?
braodcast
A ____ network is one that uses the same infrastructure to carry voice, data, and video signals.
converged
Match the forwarding characteristic to its type
cut-through: appropriate for high performance computing applications may forward invalid frames forwarding process can begin after receiving the destination address store-and-forward: error checking before forwarding only forwards valid frames forwarding process only begins after receiving the entire frame
What is one function of a Layer 2 switch?
determines which interface us used to forward a frame based on the destination MAC address
What is one advantage of using the cut-through switching method instead of the store-and-forward switching method?
has a lower latency appropriate for high-performance computing applications
What does the term "port density" represent for an Ethernet switch?
number of available ports
What is a basic function of the Cisco Borderless Architecture access layer?
provides access to the user
What information is added to the switch table from incoming frames?
source MAC address and incoming port number
Which switch form factor should be used when large port density, fault tolerance, and low price are important factors?
stackable switch
ABC, Inc. has about fifty hosts in one LAN. The administrator would like to increase the throughput of that LAN. Which device will increase the number of collision domains and thereby increase the throughput of the LAN?
switch
Refer to the exhibit. Consider that the main power has just been restored. PC1 asks the DHCP server for IPv4 addressing. The DHCP server sends it an IPv4 address. While PC2 is still booting up, PC3 issues a broadcast IPv4 DHCP request. To which port will SW1 forward this request?
to Fa0/1, Fa0/2, and Fa0/3 only
