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WorksheetsCCNA 2 Module 1-4
Total questions: 51
Worksheet time: 27mins
Which tasks can be accomplished by using the command history feature?
Set the command history buffer size
Recall previously entered commands
View a list of commands entered in a previous session
Recall up to 15 command lines by default
Save command lines in a log file for future reference
What is the first action in the boot sequence when a switch is powered on?
load a power-on self-test program
low-level CPU initialization
load boot loader software
load the default Cisco IOS software
What must an administrator have in order to reset a lost password on a router?
physical access to the router
access to another router
a crossover cable
a TFTP server
When configuring a switch for SSH access, what other command that is associated with the login local command is required to be entered on the switch?
username username secret secret
enable secret password
password password
login block-for seconds attempts number within*seconds*
Which command displays information about the auto-MDIX setting for a specific interface?
show controllers
show interfaces
show processes
show running-config
If one end of an Ethernet connection is configured for full duplex and the other end of the connection is configured for half duplex, where would late collisions be observed?
on both ends of the connection
on the half-duplex end of the connection
on the full-duplex end of the connection
only on serial interfaces
Which command is used to set the BOOT environment variable that defines where to find the IOS image file on a switch?
boot system
config-register
boot loader
Confreg
What does a switch use to locate and load the IOS image?
BOOT environment variable
IOS image file
POST
startup-config
NVRAM
Which protocol adds security to remote connections?
SSH
NetBEUI
HTTP
FTP
POP
What is a characteristic of an IPv4 loopback interface on a Cisco IOS router?
It is a logical interface internal to the router.
The no shutdown command is required to place this interface in an UP state.
Only one loopback interface can be enabled on a router
It is assigned to a physical port and can be connected to other devices.
What is the minimum Ethernet frame size that will not be discarded by the receiver as a runt frame?
64 bytes
512 bytes
1024 bytes
1500 bytes
After which step of the switch bootup sequence is the boot loader executed?
after POST execution
after CPU initialization
after IOS localization
after flash file system initialization
Which impact does adding a Layer 2 switch have on a network?
an increase in the number of dropped frames
an increase in the size of the broadcast domain
an increase in the number of network collisions
an increase in the size of the collision domain
Which characteristic describes cut-through switching?
Frames are forwarded without any error checking.
Error-free fragments are forwarded, so switching occurs with lower latency
Only outgoing frames are checked for errors.
Buffering is used to support different Ethernet speeds.
What is the significant difference between a hub and a Layer 2 LAN switch?
A hub extends a collision domain, and a switch divides collision domains.
A hub divides collision domains, and a switch divides broadcast domains.
Each port of a hub is a collision domain, and each port of a switch is a broadcast domain.
A hub forwards frames, and a switch forwards only packets.
Which statement is correct about Ethernet switch frame forwarding decisions?
Frame forwarding decisions are based on MAC address and port mappings in the CAM table
Cut-through frame forwarding ensures that invalid frames are always dropped
Only frames with a broadcast destination address are forwarded out all active switch ports
Unicast frames are always forwarded regardless of the destination MAC address
How do switch buffers affect network performance?
They provide error checking on the data received
They store frames received, thus preventing premature frame discarding when network congestion occurs
They provide extra memory for a particular port if autonegotiation of speed or duplex fails
They hold data temporarily when a collision occurs until normal data transmission resumes
Which switch characteristic helps keep traffic local and alleviates network congestion?
high port density
fast port speed
large frame buffers
fast internal switching
Which switch component reduces the amount of packet handling time inside the switch?
ASIC
dual processors
large buffer size
store-and-forward RAM
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
source IP address and incoming port number
destination IP address and incoming port number
Which switching method ensures that the incoming frame is error-free before forwarding?
store-and-forward
cut-through
FCS
fragment free
Under which two occasions should an administrator disable DTP while managing a local area network?
when connecting a Cisco switch to a non-Cisco switch
on links that should not be trunking
when a neighbor switch uses a DTP mode of dynamic auto
when a neighbor switch uses a DTP mode of dynamic desirable
on links that should dynamically attempt trunking
Which two characteristics describe the native VLAN?
The native VLAN traffic will be untagged across the trunk link
The native VLAN provides a common identifier to both ends of a trunk
Designed to carry traffic that is generated by users, this type of VLAN is also known as the default VLAN.
This VLAN is necessary for remote management of a switch
High priority traffic, such as voice traffic, uses the native VLAN
On a switch that is configured with multiple VLANs, which command will remove only VLAN 100 from the switch?
Switch(config)# no vlan 100
Switch(config-if)# no switchport trunk allowed vlan 100
Switch(config-if)# no switchport access vlan 100
A network contains multiple VLANs spanning multiple switches. What happens when a device in VLAN 20 sends a broadcast Ethernet frame?
Only devices in VLAN 20 see the frame
All devices in all VLANs see the frame
Devices in VLAN 20 and the management VLAN see the frame
Only devices that are connected to the local switch see the frame
What happens to switch ports after the VLAN to which they are assigned is deleted?
The ports stop communicating with the attached devices
The ports are disabled
The ports are placed in trunk mode
The ports are assigned to VLAN1, the default VLAN
Port Fa0/11 on a switch is assigned to VLAN 30. If the command no switchport access vlan 30 is entered on the Fa0/11 interface, what will happen?
Port Fa0/11 will be returned to VLAN 1
An error message would be displayed.
Port Fa0/11 will be shutdown
VLAN 30 will be deleted
Which command displays the encapsulation type, the voice VLAN ID, and the access mode VLAN for the Fa0/1 interface?
show interfaces Fa0/1 switchport
show vlan brief
show mac address-table interface Fa0/1
show interfaces trunk
Which is NOT needed to configure a voice VLAN on a switch port?
Assign the voice VLAN to the switch port
Ensure that voice traffic is trusted and tagged with a CoS priority value
Add a voice VLAN
Configure the switch port in access mode
Assign a data VLAN to the switch port
1.A high school uses VLAN15 for the laboratory network and VLAN30 for the faculty network. What is required to enable communication between these two VLANs while using the router-on-a-stick approach?
A switch with a port that is configured as a trunk is needed when connecting to the router
Two groups of switches are needed, each with ports that are configured for one VLAN.
A router with at least two LAN interfaces is needed
A multilayer switch is needed.
When routing a large number of VLANs, what are two disadvantages of using the router-on-a-stick inter-VLAN routing method rather than the multilayer switch inter-VLAN routing method?
A dedicated router is required
Multiple subinterfaces may impact the traffic flow speed
Router-on-a-stick requires subinterfaces to be configured on the same subnets
Router-on-a-stick requires multiple physical interfaces on a router
Multiple SVIs are needed
What is a characteristic of a routed port on a Layer 3 switch?
It is not assigned to a VLAN
It supports trunking
It is commonly used as a WAN link
It cannot have an IP address assigned to it
A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# mdix auto command?
It automatically adjusts the port to allow device connections to use either a straight-through or a crossover cable.
It applies an IPv4 address to the virtual interface.
It applies an IPv6 address to the virtual interface.
It permits an IPv6 address to be configured on a switch physical interface.
It updates the MAC address table for the associated port
A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# ip address 172.18.33.88 255.255.255.0 command?
It applies an IPv4 address to the virtual interface
It applies an IPv6 address to the virtual interface.
It activates a virtual or physical switch interface.
It permits an IPv6 address to be configured on a switch physical interface
It updates the MAC address table for the associated port.
A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw# configure terminal command?
It enters the global configuration mode
It enters configuration mode for a switch virtual interface
It applies an IPv4 address to the virtual interface
It updates the MAC address table for the associated port
It permits an IPv6 address to be configured on a switch physical interface
A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# shutdown command?
It disables a virtual or physical switch interface
It saves the running configuration to NVRAM
It activates a virtual or physical switch interface
It updates the MAC address table for the associated port
It saves the startup configuration to the running configuration
A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# ipv6 address 2001:db8:a2b4:88::1/64 command?
It applies an IPv6 address to the virtual interface
It activates a virtual or physical switch interface
It applies an IPv4 address to the virtual interface
It permits an IPv6 address to be configured on a switch physical interface
It updates the MAC address table for the associated port
A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# exit command?
It returns to global configuration mode
It returns to privileged mode
It configures the default gateway for the switch
It enters user mode
It saves the startup configuration to the running configuration
A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw> enable command?
It enters privileged mode
It enters the global configuration mode
It enters configuration mode for a switch virtual interface
It updates the MAC address table for the associated port.
It permits an IPv6 address to be configured on a switch physical interface
A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config-if)# duplex full command?
It allows data to flow in both directions at the same time on the interface
It allows data to flow in only one direction at a time on the interface
It automatically adjusts the port to allow device connections to use either a straight-through or a crossover cable
It configures the switch as the default gateway
What type of VLAN should not carry voice and network management traffic?
data VLAN
voice VLAN
management VLAN
security VLAN
What type of VLAN is designed to reserve bandwidth to ensure IP Phone quality?
voice VLAN
trunk VLAN
security VLAN
management VLAN
What type of VLAN is initially the management VLAN?
default VLAN
native VLAN
data VLAN
management VLAN
What type of VLAN is designed to have a delay of less than 150 ms across the network?
voice VLAN
desirable VLAN
trunk VLAN
security VLAN
What type of VLAN is used to separate the network into groups of users or devices?
data VLAN
management VLAN
voice VLAN
native VLAN
What type of VLAN is configured specifically for network traffic such as SSH, Telnet, HTTPS, HTTP, and SNMP?
management VLAN
security VLAN
data VLAN
native VLAN
What type of VLAN supports untagged traffic?
native VLAN
voice VLAN
security VLAN
management VLAN
Which solution would help a college alleviate network congestion due to collisions?
a high port density switch
a firewall that connects to two Internet providers
a router with two Ethernet ports
a router with three Ethernet ports
Which two statements are correct with respect to SVI inter-VLAN routing?
Switching packets is faster with SVI
There is no need for a connection to a router
Virtual interfaces support subinterfaces
SVIs can be bundled into EtherChannels
SVIs eliminate the need for a default gateway in the hosts
Which type of VLAN is used to designate which traffic is untagged when crossing a trunk port?
Native
data
default
management
A network administrator issues the show vlan brief command while troubleshooting a user support ticket. What output will be displayed?
the VLAN assignment and membership for all switch ports
the VLAN assignment and membership for device MAC addresses
the VLAN assignment and trunking encapsulation
the VLAN assignment and native VLAN
