- What is a basic function of the Cisco Borderless Architecture distribution layer?
- acting as a backbone
- aggregating all the campus blocks
- aggregating Layer 3 routing boundaries*
- providing access to end user devices
- 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.)
- lower bandwidth requirements
- reduced cost for equipment and user training
- easier to provide redundant links to ensure higher availability*
- less required equipment to provide the same performance levels
- simpler deployment for additional switch equipment*
- What is a collapsed core in a network design?
- a combination of the functionality of the access and distribution layers
- a combination of the functionality of the distribution and core layers*
- a combination of the functionality of the access and core layers
- a combination of the functionality of the access, distribution, and core layers
- Which two previously independent technologies should a network administrator attempt to combine after choosing to upgrade to a converged network infrastructure? (Choose two.)
- user data traffic*
- analog and VoIP phone traffic*
- scanners and printers
- mobile cell phone traffic
- electrical system
- What is a definition of a two-tier LAN network design?
- access and core layers collapsed into one tier, and the distribution layer on a separate tier
- access and distribution layers collapsed into one tier, and the core layer on a separate tier
- distribution and core layers collapsed into one tier, and the access layer on a separate tier*
- access, distribution, and core layers collapsed into one tier, with a separate backbone layer
- A local law firm is redesigning the company network so that all 20 employees can be connected to a LAN and to the Internet. The law firm would prefer a low cost and easy solution for the project. What type of switch should be selected?
- fixed configuration*
- modular configuration
- stackable configuration
- What are two advantages of modular switches over fixed-configuration switches? (Choose two.)
- lower cost per switch
- increased scalability*
- lower forwarding rates
- need for fewer power outlets*
- availability of multiple ports for bandwidth aggregation
- Refer to the exhibit. Consider that the main power has just been restored. PC3 issues a broadcast IPv4 DHCP request. To which port will SW1 forward this request?
- to Fa0/1 only
- to Fa0/1 and Fa0/2 only
- to Fa0/1, Fa0/2, and Fa0/3 only*
- to Fa0/1, Fa0/2, Fa0/3, and Fa0/4
- to Fa0/1, Fa0/2, and Fa0/4 only
- What is one function of a Layer 2 switch?
- forwards data based on logical addressing
- duplicates the electrical signal of each frame to every port
- learns the port assigned to a host by examining the destination MAC address
- determines which interface is used to forward a frame based on the destination MAC address*
- 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 the switch, excluding the interconnected port to switch SW2 and the port through which the frame entered the switch.
- SW1 floods the frame on all ports on SW1, excluding the port through which the frame entered the switch.*
- SW1 forwards the frame directly to SW2. SW2 floods the frame to all ports connected to SW2, excluding the port through which the frame entered the switch.
- SW1 drops the frame because it does not know the destination MAC address.
- What two criteria are used by a Cisco LAN switch to decide how to forward Ethernet frames? (Choose two.)
- path cost
- egress port
- ingress port*
- destination IP address
- destination MAC address*
- Which network device can be used to eliminate collisions on an Ethernet network?
- Which type of address does a switch use to build the MAC address table?
- destination IP address
- source IP address
- destination MAC address
- source MAC address*
- What are two reasons a network administrator would segment a network with a Layer 2 switch? (Choose two.)
- to create fewer collision domains
- to enhance user bandwidth*
- to create more broadcast domains
- to eliminate virtual circuits
- to isolate traffic between segments*
- to isolate ARP request messages from the rest of the network
- Refer to the exhibit. How many broadcast domains are displayed?
- Which statement describes the microsegmentation feature of a LAN switch?
- Frame collisions are forwarded.
- Each port forms a collision domain.*
- The switch will not forward broadcast frames.
- All ports inside the switch form one collision domain.
- What is the destination address in the header of a broadcast frame?
- Fill in the blank.
A converged network is one that uses the same infrastructure to carry voice, data, and video signals.
- Match the functions to the corresponding layers. (Not all options are used.)
- Match the borderless switched network guideline description to the principle. (Not all options are used.)
- Match the forwarding characteristic to its type. (Not all options are used.)
22. What is one advantage of using the cut-through switching method instead of the store-and-forward switching method?
has a positive impact on bandwidth by dropping most of the invalid frames
makes a fast forwarding decision based on the source MAC address of the frame
has a lower latency appropriate for high-performance computing applications*
provides the flexibility to support any mix of Ethernet speeds
23. 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 Fa0/4 only
to Fa0/1, Fa0/2, Fa0/3, and Fa0/4
to Fa0/1 and Fa0/2 only
to Fa0/1, Fa0/2, and Fa0/3 only*
to Fa0/1 only
24. Refer to the exhibit. Fill in the blank.
There are ” 12 ” collision domains in the topology.
25. Match the forwarding characterictic to its type.(Not all options are used.)
Place the options in the following order:
+appropriate for high perfomance computing applications
+forwarding process can be begin after receiving the destination address
+may forward invalid frames
#error checking before forwarding
#forwarding process only begins after receiving the entire frame
#only forwards valid frames
26. 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?
27. What does the term “port density” represent for an Ethernet switch?
the numbers of hosts that are connected to each switch port
the speed of each port
the memory space that is allocated to each switch port
the number of available ports*
28. Which type of transmission does a switch use when the destination MAC address is not contained in the MAC address table?
29. What information is added to the switch table from incoming frames?
source MAC address and incoming port number*
destination MAC address and incoming port number
destination IP address and incoming port number
source IP address and incoming port number
30. An administrator purchases new Cisco switches that have a feature called StackPower. What is the purpose of this feature?
It enables many switches to be connected with a special fiber-optic power cable to provide higher bandwidth.
It enables the sharing of power among multiple stackable switches.*
It enables many switches to be connected to increase port density.
It enables many switches to be physically stacked in an equipment rack.
It enables AC power for a switch to be provided from a powered patch panel.
31. Which switch form factor should be used when large port density, fault tolerance, and low price are important factors?
rackable 1U switch
32. Refer to the exhibit. Fill in the blank.
There are ” 5 ” broadcast domains in the topology.
33. What tool is important to consider for use when making hardware improvement decisions about switches?
switched virtual interfaces
traffic flow analysis*
34. What is the maximum wire speed of a single port on a 48-port gigabit switch?
35. When the installation of a network infrastructure is being planned, which technology will allow power to be provided via Ethernet cabling to a downstream switch and its connected devices?
wireless APs and VoIP phones
36. Match the function to the corresponding switch type. (Not all options are used.)
Layer 2 switches
[+] typically used in the access layer of a switched network
[+] forward traffic based on information in the Ethernet header
[#] can build a routing table
[#] supports a few routing protocols
37. Refer to the exhibit. Fill in the blank.
How many collision domains are shown in the topology? __2__
38. Place the options in the following order:
[+] represents the network edge
[+] provides network access to the user
[#] implements network access policy
[#] establishes Layer 3 routing boundaries
[*] provides high-speed backbone connectivity
[*] functions as an aggregator for all the campus blocks
39. Match the borderless switched network guidline description to the principle (not all options used)
Place the options in the following order:
allows intelligent traffic load sharing by using all network resources -> flexibility
facilitates understanding the role of each device at every tier, simplifies deployment, operation, management, and reduces fault domains at every tier -> hierarchical
allows seamless network expansion and integrated service enablement on an on-demand basis -> modularity
satisfies user expectations for keeping the network always on -> resiliency