Term
| Switch S1 and Switch S2 are both configured with ports in the Marketing, sales, Production, and Admin VLANs. Each VLAN contains 12 users. How many subnets are needed to address the VLANs? |
|
Definition
|
|
Term
| What mechanism is used to achieve the separation between different VLANs as the cross a trunk link? |
|
Definition
| VLAN tagging using 802.1Q protocol |
|
|
Term
| What are two options to consider when configuring a trunk link between to switches? |
|
Definition
Port security cannot be configured on the trunk interface.
The native VLAN must be the same on both ends of the trunk link. |
|
|
Term
| A 12 port switch has been configured to support three VLANs named Sales, Marketing, and Finance. Each VLAN spans four ports on the switch. The network administrator has deleted the Marketing VLAN from the switch. What two statements describe the status of the ports associated with this VLAN? |
|
Definition
The ports are inactive.
The ports will remain part of the Marketing VLAN until reassigned to another VLAN. |
|
|
Term
| Which Three Statements are true about hosts configured in the same VLAN? |
|
Definition
Hosts in the same VLAN must be on the same IP subnet.
Hosts in the same VLAN share the same broadcast domain.
Hosts in the same VLAN comply with the same security policy. |
|
|
Term
| Refer to figure 3-34. Host C is unable to transfer data because it does not have the MAC address of the destination host. If Host C sends out an ARP request, which of the other hosts will see the message? |
|
Definition
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|
Term
| Each port Associated with specific VLAN |
|
Definition
|
|
Term
| Manual configuration of port assignment required |
|
Definition
|
|
Term
| Ports work out their own configuration |
|
Definition
|
|
Term
| Less administrative overhead when users moved |
|
Definition
|
|
Term
| Requires administrator interaction when users moved |
|
Definition
|
|
Term
| Configured based on database |
|
Definition
|
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Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
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Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| All ports are a member of by default |
|
Definition
|
|
Term
| Refer to figure 3-35. Brand new switches with empty MAC address tables are interconnected via a trunk link. All hosts on both switches are configured with the VLAN memberships shown. How is a frame sent from Host A forwarded to Host B? |
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Definition
| Swithc SW1 tags the frame with VLAN ID 10, and the frame is then flooded to all hosts on switch SW2 that are members of VLAN 10. |
|
|
Term
| Refer to Example 3-29. Host 1 is connected to interface F0/4 with IP address 192.168.1.22/28. Host 2 is connected to interface F0/5 with IP address 192.168.1.33/28. Host 3 is connected to interface F0/6 with IP address 192.168.30/28. Select three statements that describe the success of pinging from one host to another. |
|
Definition
Host 1 cannot ping Host 2
Host 1 can ping Host 3
Host 2 cannot ping Host 3 |
|
|
Term
| Which three options accurately associate the Catalyst switch command with the result? |
|
Definition
show vlan id
show vlan
show interface f0/1 switchport |
|
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Term
|
Definition
| Configures the port as a permanent 802.1Q trunk |
|
|
Term
| switchport mode dynamic desireable |
|
Definition
| Configures the port to negotiate a trunk |
|
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Term
|
Definition
| Configures the trunk to not send DTP packets |
|
|
Term
|
Definition
|
|
Term
|
Definition
| The VLAN configured for untagged frames is not the same on two switches connected by a trunk |
|
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Term
|
Definition
| Both switches are configured to dynamic auto and will not negotiate a link |
|
|
Term
|
Definition
| Not all the VLANs needed are allowed to traverse a trunk |
|
|
Term
|
Definition
| Two VLANs are sharing the same address space |
|
|
Term
| Wich three options accurately associate static, dynamic, or voice VLAN membership with the port membership statement? |
|
Definition
Static VLAN port membership: Port on a switch that maintains its assigned VLAN configuration until it is changed manually.
Dynamic VLAN port membership: Port on a switch using VMPS and associating a port to a VLAN based on the source MAC address.
Voice VLAN port membership: Access port atached to an IP phone, configured to use one VLAN for vice traffic and another VLAN for data traffic. |
|
|
Term
| How does VTP affect VLAN administration? |
|
Definition
| VTP propagates VLAN names to all switches in a VTP domain. |
|
|
Term
| A Catalyst switch must be in which VTP mode to delete or add VLANs to a management domain? |
|
Definition
|
|
Term
| What is the purpose of VTP transparent mode? |
|
Definition
| It enables VTP advertisements to pass through a nonparticipating switch. |
|
|
Term
| Two switches running VTP are connected with an 802.1Q trunk link. One of the switches is not receiving VTP update information. What could cause this problem? |
|
Definition
| The VTP domain name is not the same on both switches. |
|
|
Term
| A switch in a VTP domain sends an advertisement request. What will be the response? |
|
Definition
| Summary and subset advertisements will be sent by the VTP server. |
|
|
Term
| Which function, when enabled on a switched network, prevents broadcasts, multicast, and unknown unicast traffic to a VLAN from being flooded to switches that do not have that particular VLAN assigned to them? |
|
Definition
|
|
Term
| Which three options are required when adding a new switch to an existing VTP domain? |
|
Definition
All VTP switches must use the same version of VTP.
The VTP domain names must be identical.
The connection to the VTP domain must be a trunked link. |
|
|
Term
|
Definition
| specifies that the switch cannot create or delete VLANs shared in VTP advertisements. |
|
|
Term
|
Definition
| configures the name used to determine which switches belong to the same management group. |
|
|
Term
|
Definition
| restricts flooded traffic to trunk links that the traffic must use to reach destination devices. |
|
|
Term
| What is the purpose of the VLAN Trunking Protocol? |
|
Definition
| Maintaining consistency in VLAN configuration across the network. |
|
|
Term
| See Figure 4-33. Switch SW1 and Switch Sw2 are configured in the same VTP domain but fail to exchange VLAN information. What could be done to fix the problem? |
|
Definition
| Configure the same password on the VTP client and VTP server. |
|
|
Term
| A network engineer is implementing a new VLAN design on an existing structure. The show vlan command shows that none od the new VLANs are synchronizing on the other network switches. All switches can ping each other and trunking is correct. What is the likely problem? |
|
Definition
| The switch rejoined the network with the revision number set to zero. |
|
|
Term
|
Definition
| forwards VTP advertisements that are received out the trunk ports, but cannot advertise and synchronize the VLAN configuration based on received advertisements. |
|
|
Term
|
Definition
| advertises and synchronizes the VLAN configuration to other switches in the same VTP domain, but cannot create, change, or delete VLANs |
|
|
Term
|
Definition
| creates, modifies, and deletes VLANs and specifies other configuration parameters, such as VTP version and VTP pruning for the entire VTP domain. |
|
|
Term
| See figure 4-34. The switches in the exhibit are interconnected by trunk links and are configured for VTP as shown. A new VLAN is added to Switch 1. Which three actions will occur? |
|
Definition
Switch 1 will send VTP update to Switch 2.
Switch 2 will add the VLAN ato its database and pass the update to Switch 3.
Switch 3 will pass the VTP update to Switch 4. |
|
|
Term
| Which are two problems associated with redundant switched Ethernet topologies? |
|
Definition
Broadcast storms
multiple frame copies |
|
|
Term
| Refer to figure 5-98. The network is not running spanning-tree protocol. What would be the result if an ARP request were sent by the workstation? |
|
Definition
| The frame will loop between SW-1 and SW-2 repeatedly. |
|
|
Term
| Refer to figure 5-99. How will spanning tree prevent switching loops in the network shown if all switches have only the default VLAN configured? |
|
Definition
| A single switch will be elected as the root switch, and redundant paths to this switch will be blocked. |
|
|
Term
| What must a switch running spanning tree do when it is first turned on? |
|
Definition
| Learn the lowest BID of all switches in the network. |
|
|
Term
|
Definition
| is a single instance of spanning tree encompassing every VLAN in the LAN. |
|
|
Term
|
Definition
| reduces the number of spanning-tree instaces required to support large nuumbers of VLANs. |
|
|
Term
|
Definition
| suppports the use of ISL trunking and load balancing. |
|
|
Term
|
Definition
| supports BPDU guard, root guard, and the use of IEEE 802.1Q trunking. |
|
|
Term
|
Definition
| supports equivalent functionality to BackboneFast, UplinkFast, and PortFast, is used based on IEEE 802.1w, and functions per-VLAN. |
|
|
Term
|
Definition
| incorperated into IEEE 802.1D-2004; supporst equivalent functionality to BackboneFast, UplinkFast, and PortFast. |
|
|
Term
| Which three ports will discard data traffic during STP operation? |
|
Definition
Blocking ports
Disabled ports
Listening ports |
|
|
Term
|
Definition
| recieves/processes BPDUs. populates MAC address table |
|
|
Term
|
Definition
|
|
Term
|
Definition
| receives/processes BPDUs, populates MAC address table, sends data frames |
|
|
Term
|
Definition
| receives/processes and transmits BPDUs |
|
|
Term
|
Definition
|
|
Term
| Which three timers determine the STP performance and state changes? |
|
Definition
Hello time
Forward delay
Maximum age |
|
|
Term
| Refer to figure 5-100. What will be the result of the spanning tree root bridge election process in the network if each switch supports one and the same VLAN? |
|
Definition
| Cat-C will be the root bridge |
|
|
Term
| PVST+provides support for each IEEE standard? |
|
Definition
|
|
Term
| Which two characteristics are asscoiated with RSTP? |
|
Definition
| Preferred protocol for preventing Layer 2 loops Forward delay and max age timers are unneeded. |
|
|
Term
| What is a characteristic of an RSTP edge port? |
|
Definition
| Once enabled, it immediately transitions to the forwarding state. |
|
|
Term
| When implementing RSTP for non-edge ports, which two categories of link types are available? |
|
Definition
|
|
Term
| What method does RSTP use to decrease the time it takes to designate a new root port when existing root port fails? |
|
Definition
| Prenegotiated alternate ports for the root port. |
|
|
Term
| A switch currently has only one VLAN configured and is running single instance of rapid spanniing tree. Which action will create a second rapid spanning tree instance? |
|
Definition
| Assigning a port to a VLAN other than VLAN 1 |
|
|
Term
| Refer to figure 5-101. Spanning-tree port priorities are listed. S4 port Gio/1 is currently in RSTP discarding state. What action would change the state to forwarding? |
|
Definition
| Changing the port role for Gio/1 using the spanning-tree port priority command. |
|
|
Term
| Refer to figure 5-27. Which two statemetns are true regarding th VLAN0001 spanning-tree environment in which switch SW3 is participating? |
|
Definition
| SW3 is directly connected to port 16 on the root switch. SW3 is using the timers advertised by the root switch. |
|
|
Term
| Refer to figure 5-28. Why would interface F0/4 have spanning-tree PortFast disabled? |
|
Definition
| Interfaces F0/1-3 are connected to end stations, whereas interface F0/4 is connected to another Layer 2 device. |
|
|
Term
|
Definition
| Each VLAN trunk supports a set of allowed VLANs. |
|
|
Term
|
Definition
| A switch port in an RSTP topology that offers an alternate path toward the root bridge. |
|
|
Term
|
Definition
| In an RSTP tolpology, this is a switch port on a designated bridge with a redundant link to the segment for which the switch is designated. |
|
|
Term
|
Definition
| The black hole VLAN for a switch or switched infrastructure is defined by the switch administrator as a dummy VLAN distinct from all other VLANs. |
|
|
Term
|
Definition
| A port is in blocking state if it is a nondesignated port and does not participate in frame forwarding. |
|
|
Term
|
Definition
| The bridge ID is composed of a priority value, an extended system ID, and the reserved MAC address from the switch. |
|
|
Term
|
Definition
| The first parameter used in building a spanning-tree topology. |
|
|
Term
| bridge protocol date unit (BPDU) |
|
Definition
| A spanning-tree protocol Ethernet frame that is sent out at regular intervals to exchange information among bridges in the network relating to spanning-tree topology formation. |
|
|
Term
| Canonical Format Identifier (CFI) |
|
Definition
| A single bit flag value in the IEEE 802.1Q header. |
|
|
Term
|
Definition
| Used by STP to build a loop-free topology. |
|
|
Term
|
Definition
| A VLAN that is configured to carry only user-generated traffic. |
|
|
Term
|
Definition
| The VLAN that all the ports on a switch are members of when a switch is reset to factory defaults. |
|
|
Term
|
Definition
| The bridge that incurs the lowest path cost when forwarding a frame from a segment to the root bridge. |
|
|
Term
|
Definition
| In spanning-tree, a nonroot switch port that is permitted to forward traffic on the network. |
|
|
Term
|
Definition
| A port that is administratively shut down. |
|
|
Term
|
Definition
| A switch port is in the spanning-tree disabled state if it is adminstatively shut down. |
|
|
Term
|
Definition
| An RSTP port state seen in both a stable active topology and during topology synchronization changes. |
|
|
Term
|
Definition
A DTP setting whereby the local switch port advertises to the remote switch port that it is able to trunk but does not request to go to the trunking state.
|
|
|
Term
|
Definition
| A DTP setting whereby the local switch port advertises to the remote switch port that it is able to trunk and asks the remote switch port to go to the trunking state. |
|
|
Term
| Dynamic Trunking Protocol (DTP) |
|
Definition
| A Cisco-proprietary protocol that negotiates both the status and encapsulation of trunk ports. |
|
|
Term
|
Definition
| VLAN port membership modes are either static or dynamic. |
|
|
Term
|
Definition
| An RSTP edge port switch port that is never intended to be connected to another switch device. |
|
|
Term
|
Definition
| Consitutes 12 bits of the 8-byte BID and contains the ID of the VLAN with which and STP BPDU is associted. |
|
|
Term
|
Definition
| Technology developed by Intel and licensed to other semiconductor companies. |
|
|
Term
|
Definition
| The time a switch port spends in STP listening state after the port is activated for bridging and before forwarding begins. |
|
|
Term
|
Definition
| An STP port in forwarding state is considered part of the active topology and forwards data frames as well as sending and recieving BPDU frames. |
|
|
Term
|
Definition
| The value of a field in a BPDU frame that specifies how frequently BPDUs are tras=nsmitted. |
|
|
Term
|
Definition
| A project in the IEEE 802 standards process to develop a mechansim to allow multiple bridged networks to transparently share the smae physical network ling without leaking information between networks. |
|
|
Term
|
Definition
| A standard that provides traffic class expediting. |
|
|
Term
|
Definition
| A Cisco-proprietarty protocol that maintains VLAN information as traffic flows between switches and routers, or switches and switches. |
|
|
Term
|
Definition
| The IEEE 802.1D learning state is seen in both a stable active topology and during topology synchronization changes. Ports accepts data frames |
|
|
Term
|
Definition
| The IEEE 802.1D listening state is seen in both stable active topology and during topology synchromnization changes.The port cannot send or recieve data frames |
|
|
Term
|
Definition
| The capability of a networking device to distribute traffic over some of its network ports on the path to the destination. |
|
|
Term
|
Definition
| A VLAN defined by the switch administrator as a means of accessing the management capabilities of a switch. |
|
|
Term
|
Definition
| An STP timer that controls the maximum length of time a switch port saves configuration BPDU information. |
|
|
Term
|
Definition
| A field in a BPDU that specifies a metric for distance from the root bridge. |
|
|
Term
| Multiple Instance Tree Protocol (MISTP) |
|
Definition
| A prestandard version of MSTP used on Catalyst 6000 Family switches running CatOS. |
|
|
Term
| Multiple Spanning Tree Protocol (MSTP) |
|
Definition
| MSTP, introduces as IEEE 802.1s, is an evoultion of IEEE 802.1D STP and IEEE 802.1(RSTP). |
|
|
Term
|
Definition
| A native VLAN is assigned to an IEEE 802.1Q trunk port. AN IEEE 802.1Q trunk port supports tagged and untagged traffic coming from many VLANs |
|
|
Term
|
Definition
| An STP port dynamically configured to be in a blocking state to prevent loops. |
|
|
Term
|
Definition
| The nonegotiate trunking option sets the local port to be in an unconditional trunking state with DTP disabled. |
|
|
Term
|
Definition
| Refers to any type of access of a networking device operating system by means other than the network itself. |
|
|
Term
|
Definition
| The cumulative STP cost from a device to the root bridge |
|
|
Term
| Per-VLAN Spanning Tree (PVST) |
|
Definition
| A Cisco-proprietary STP implementation that maintains a spanning-tree instance for each VLAN configured in the network. |
|
|
Term
| Per-VLAN Spanning Tree Plus (PVST+) |
|
Definition
| PVST+ provides the same functionality as PVST, including PortFast, and adds support for IEEE 802.1Q |
|
|
Term
|
Definition
| In an RSTP topology, nonedge ports are categorized into two link types; point-to-point and shared. |
|
|
Term
|
Definition
| The spanning-tree port cost is a measure assigned on a per-link basis in a switched LAN |
|
|
Term
|
Definition
| A numerical value associated with switch ports and used to break ties in spanning-tree calculations. |
|
|
Term
|
Definition
| A configurable spanning-tree parameter assigned to a switch port. |
|
|
Term
|
Definition
| A Cisco Cataylst switch technology |
|
|
Term
| proposal and agreement process |
|
Definition
| RSTP dramatically speeds up convergence relative to IEEE 802.1D STP implementations by functioning on a link-by-link basis without relying on timers expiring before ports can transition between states. |
|
|
Term
| Rapid Per-VLAN Spanning Tree Plus (Rapid PVST+) |
|
Definition
| A Cisco implementation of RTSP. It supports one instance of RSTP for each VLAN. |
|
|
Term
| Rapind Spanning Tree Protocol (RSTP) |
|
Definition
| RSTP specified by IEEE 802.1w, is a dramatic improvement to IEEE 802.1D, providing very fast spanning-tree convergence on a link-by-link basis using a proposal and agreement process independent of timers. |
|
|
Term
|
Definition
| The bridge ID of the root bridge in a spanning-tree topology. |
|
|
Term
|
Definition
| The root of a spanning-tree topology; this prevents loops and provides a measure for defense against link failure. |
|
|
Term
|
Definition
| The unique port on a nonroot bridge that has the lowest path cost to the root bridge. |
|
|
Term
|
Definition
| Nonedge ports are categorized into two link types; point-to-point and shared. Half duplex environment |
|
|
Term
|
Definition
| IP telephony traffic responsible for call setup, progress, and teardown, traversing the network end-to-end. |
|
|
Term
| spanning-tree algorithm (STA) |
|
Definition
| Used by STP to create spanning-tree |
|
|
Term
| Spanning Tree Protocol (STP) |
|
Definition
| Bridge protocol that utilizes the spanning-tree algorithm, enabling a learning bridge to dynamically work around loops in a network topology by creating a spanning tree |
|
|
Term
|
Definition
| One in which ports on the switch are manually assigned. |
|
|
Term
|
Definition
| The number of intermediary switches between two endpoints. |
|
|
Term
| switch virtual interface (SVI) |
|
Definition
| A layer 3 logical interface associated with a specific VLAN |
|
|
Term
|
Definition
| The field in an IP header that indicates how long a packet is considered valid |
|
|
Term
| topology change acknowledgement (TCA) |
|
Definition
| A BPDU with the TC bit set to 1 |
|
|
Term
|
Definition
| A bit in a configuration BPDU that is used only when a switch is acknoweledging the reciept of a TCN BPDU. |
|
|
Term
| topology change notification (TCN) |
|
Definition
| A special BPDU used when a switch needs to signal a topology change. |
|
|
Term
|
Definition
| Catalyst switches support a variety of trunking modes used by DRT to negotiate the status of a trunk port. |
|
|
Term
|
Definition
| A normal Ethernet frame in a switched LAN. |
|
|
Term
|
Definition
| The parameter in the IEEE 802.1Q tag that indicates the VLAN the frame is associated with. |
|
|
Term
|
Definition
| AN Ethernet point-to-point link between an Ethernet switch interface and an Ethernet interface on another networking device, such as a router or a switch, carrying the traffic of multple VLANs over the singular link. |
|
|
Term
| VLAN Trunking Protocol (VTP) |
|
Definition
| A Cisco-proprietary Layer 2 protocol that enables a network manager to configure a single switch so that it propagates VLAN configuration information to other switches in the network, as well as synchromizes the information with the swithces in the VTP domain. |
|
|
Term
|
Definition
| Catalyst switch VLAN configuration information is stored within a VLAN database file, called vlan.dat |
|
|
Term
|
Definition
| Specialized Catalyst switch VLANs with an accompanying Catalyst CL1 command set |
|
|
Term
|
Definition
| VTP adevertisements are messages transmitted between Catalyst switches to share and synchronize VLAN configuration details in the switched LAN |
|
|
Term
|
Definition
| VTP clients participate in VTP operation, but do not permit creating, changing, or deleting of VLANs on the client itself. |
|
|
Term
| VTP configuration revision number |
|
Definition
| A number that indicates the current state of the VLAN inforamtion on the switch. |
|
|
Term
|
Definition
| A set of Catalyst sewitches with the same VTP domain name |
|
|
Term
|
Definition
| VTP has three operating modes: server, client, and transparent |
|
|
Term
|
Definition
| The VTP password must match on all switches in a VTP domain |
|
|
Term
|
Definition
| Prevent unnecessary transmission of VLAN information from on VLAN across all trunks in a VTP domain |
|
|
Term
|
Definition
| VTP servers advertise the VTP doamin VLAN informaiton to other VTP-enabled switches in the same VTP doamin |
|
|
Term
|
Definition
| VTP transparent mode switches forward VTP advertisements to VTP clients and VTP servers, but does not originate or otherwise process VTP advertisements. |
|
|
Term
|
Definition
| VTP has three versions. Catalyst 2960 an 3560 switches support versions 1 and 2 |
|
|
