WorksheetsACN - SRWE - Modules 1-9 25-26 FinalExam
Total questions: 100
Worksheet time: 50mins
Put the router boot sequence in order:
A. Locate and load the Cisco IOS
B. POST and load bootstrap
C. Locate and load config file or enter setup mode
A-B-C
C-B-A
B-C-A
B-A-C
Which command sets the environment variable on where to find the IOS image file on a switch?
boot system
boot loader
boot enable
boot select
Which light combination of the system LED means the system has power but is not functioning properly?
amber light
no light
green light
flashing green light
If you see the switch: prompt, what has happened in the switch?
The OS is missing.
The switch cannot find the boot loader.
Someone left the switch while they were logged in.
The switch has a virus.
Which command will assign an IPv4 address to the SVI?
S1(config-if)# ip address 172.17.99.11 255.255.255.0
S1(config)# ip address 172.17.99.11 255.255.255.0
S1> ip address 172.17.99.11
S1# ip address 172.17.99.11 255.255.255.0
All ports on a switch are assigned to which VLAN by default?
VLAN 1
VLAN 0
VLAN 99
VLAN 10
If the mdix auto command is not configured on the interfaces, what type of cable would be needed to connect a switch to another switch?
crossover
rollover
straight-through
doesn't matter
Frames will be tagged as runt frames if they are less than what?
64 bytes
128 bytes
512 bytes
1518 bytes
Why would someone want to use SSH over Telnet?
SSH provides an encrypted connection.
SSH is faster than Telnet.
Port 22 is lower than Port 23 and therefore it connects first.
Telnet won't allow connection of a remote device.
The configure terminal command enters which mode?
global configuration
Privileged EXEC
User EXEC
interface configuration
What will entering the enable command do at the > prompt?
Enter global configuration mode.
Enter Privileged EXEC mode.
Enter User EXEC mode.
Enter interface configuration mode.
What will entering the command shutdown do to an interface?
disable it
enable it
reboot it
lock it
What are two features of STP? (Choose two)
enabled by default on Cisco switches
removes single points of failure
creates loops in Layer 2 topologies
disabled by default on Cisco switches
What is the term for a high number of transmissions which overwhelm a network during a specific amount of time?
Broadcast Storm
Multicast Storm
Unicast Storm
Frame Storm
What will happen if a switch is overwhelmed with traffic and cannot operate normally?
New traffic will not be processed and is discarded.
New traffic is buffered for extended periods of time.
The switch will endlessly reboot.
The switch will turn off overwhelmed ports.
Which is not part of the BID?
Priority value
MAC address
Extended System ID
Root ID
What is the default priority for all Cisco switches?
32768
61440
28762
4096
If three switches have the same priority and the same extended ID, what would be used next to determine the root bridge?
Lowest MAC Address
Highest MAC Address
Lowest Interface ID
Highest Interface ID
What value is used to determine the root port?
Lowest Overall Cost
Lowest Cumulative Bandwidth
Lowest MAC Address
Lowest Bridge ID
What is a switch looking for if it is going through the process of analyzing the sum of all port costs to reach the root bridge?
Root Port
Designated Port
Alternate Port
Backup Port
If a switch has multiple equal-cost paths to the root bridge, what will it use second to determine which port will become the root port?
Lowest sender BID
Lowest sender port priority
Lowest sender port ID
Lowest sender MAC address
Which state is a port in if it is receiving BPDUs to determine the location and root ID of the root bridge?
Blocking
Listening
Learning
Forwarding
In which two port states is the switch not learning MAC addresses? (Choose two)
Blocking
Listening
Learning
Forwarding
What feature will put a switch port into an errdisabled state upon receipt of a Bridge Protocol Data Unit?
PortFast
BPDU Guard
RSTP
Spanning-Tree
Which command would you use to verify a root bridge?
show spanning-tree
show stp
show running-config
show startup-config
Which spanning tree protocol is a Cisco enhancement of RSTP that uses PVST+ and provides a separate instance of 802.1w for each VLAN.
RSTP
PVST+
MSTP
Rapid PVST+
Which technology groups physical links together into one logical link?
EtherChannel
VLAN
VPN
STP
What is the name for a virtual interface created by grouping multiple physical links into one logical link?
port channel
EtherChannel
channel interface
EtherInterface
Which two items below are advantages of EtherChannel? (Choose two)
Most configuration tasks can be done on the EtherChannel interface.
Loss of one physical link within the channel does not change the topology.
Loops are prevented from occuring in the topology.
Multiple access links can be combined into one trunk link.
If two physical links are combined into an EtherChannel and one of the two physical links fails, what happens to the EtherChannel?
It remains functional and is able to carry the same amount of traffic.
It remains functional but can only carry a reduced amount of traffic.
It fails and shuts down the remaining link.
It fails but the remaining link is still operational.
What are the maximum number of links that can be combined into an EtherChannel?
4
8
16
24
What are two protocols used to form EtherChannels? (Choose two)
PAgP
802.3ad
LAPD
PSP
NYPD
Which EtherChannel protocol is not proprietary?
PAgP
LACP
LAPD
STP
Which mode will force the interface to channel but will not exchange packets?
On
Desirable
Auto
Active
Passive
Which PAgP modes will result in a channel establishment?
On - Auto
Desirable - Desirable
Auto - Auto
Active - Active
Which LACP mode will result in channel establishment?
Passive - Active
On - Auto
On - Active
Desirable - Auto
If SW1 has a trunk port with a speed of 1Gbps, full duplex, VLANs 1,2,3,4,5, and native VLAN 99 and SW2 has a trunk port with a speed of 1Gbps, full duplex, VLANs 1,2,3,4,5 and native VLAN 1; will an EtherChannel be created?
Yes
No
Which PAgP mode will respond to PAgP packets but does not initiate PAgP negotiation?
Auto
Desirable
Active
Passive
Which are LACP modes?
Auto
Desirable
Active
Passive
On
What is the main purpose of inter-VLAN routing?
To allow communication between devices on the same VLAN
To allow communication between different VLANs
To assign IP addresses to VLANs
To separate traffic on the same VLAN
When using router-on-a-stick, which interface type is configured on the router to connect multiple VLANs?
Physical interface only
Subinterface for each VLAN
Access interface per VLAN
Management interface
Which type of inter-VLAN routing requires no external router hardware?
Router-on-a-stick
Layer 3 switch
Legacy method
VLAN trunking protocol
What is one advantage of using a Layer 3 switch over router-on-a-stick?
Lower latency and faster internal routing
Easier setup for small networks
Uses fewer VLANs
Does not require IP addressing
What is the function of the encapsulation dot1Q command on a router?
Enables routing protocols
Assigns the VLAN ID to a subinterface
Converts a port into a trunk
Disables switching on a port
Which command would convert a switch port into a Layer 3 routed interface?
switchport mode trunk
switchport access vlan 10
no switchport
ip routing
A switch port must be configured with which setting to carry multiple VLANs to a router?
Trunk mode
Access mode
Port security
Spanning-tree
On a Layer 3 switch, what is an SVI primarily used for?
To connect two physical switches
To route between VLANs internally
To increase bandwidth between VLANs
To disable switching on an interface
Which command displays the active VLANs and their assigned interfaces?
show ip route
show vlan brief
show ip interface brief
show interfaces trunk
A network engineer removes VLAN 40 using the no vlan 40 command. What happens to the ports that were assigned to VLAN 40?
They remain active with their IP addresses
They are reassigned to the default VLAN
They become part of the management VLAN
They are shut down automatically
What is the name for implanting a virtual router where multiple routers are configured to work together while appearing as a single router to the host?
FHRP
STP
DTP
DHCP
What two things are shared with the virtual router and physical routers?
IP
MAC
NIC
Gateway
Name
What two routers are used by HSRP?
Active
Passive
Standby
Primary
Priority
Place the steps below in order:
1. The standby router assumes the role of the forwarding router.
2. The standby router stops seeing Hello messages from the forwarding router.
3. Because the new forwarding router assumes both the IPv4 and MAC addresses of the virtual router, the host devices see no disruption in service.
2-1-3
3-1-2
1-2-3
2-3-1
Which is an ICMP solution?
HSRP
VRRPv2
GLBP
IRDP
DHCP
Which protocols are for router redundancy?
HSRP
VRRPv2
GLBP
STP
DHCP
Which protocol will handle load balancing?
HSRP
VRRPv2
GLBP
IRDP
DHCP
If all HSRP priorities are equal, what will be used to determine the active router?
lowest IPv4 address
highest IPv4 address
lowest MAC
highest MAC
What is the name of the process where a new election of active router is forced to take place upon another router coming online?
Preemption
Preelection
Preelevation
Preevolution
Active and standby HSRP routers send hello packets to the HSRP multicast group every ____ seconds.
5
3
10
8
If a broadcast packet is sent from a PC on VLAN 9, where will the packets be sent to when it reaches a switch with VLANs properly configured?
All active ports on the switch configured as VLAN 9.
To all ports on the switch
To the first hop router
To all ports on the default VLAN attached to the switch
Which are benefits of using VLANs? (Choose three)
Larger Broadcast Domains
Improved Security
Reduced Cost
Increased Management Tasks
Reduced Traffic
Where does the 802.1Q trunk place untagged traffic?
On the Native VLAN
On the Default VLAN
On the Management VLAN
On VLAN 99
Where can a VLAN trunk be utilized?
Between a switch and a host
Between a host and a server
Between a switch and a server with an 802.1Q NIC
Between a host and a server with an 802.1Q NIC
In which case can a port be assigned two VLANs?
When supporting VOIP
When using VLAN names
When using extended VLANs
When combining with the default VLAN
What range is VLAN 706 in?
Extended
Normal
VOIP
Automatic
What is the file that stores normal range VLANs?
vlan.dat
flash.dat
vlan.db
flash.txt
Where are normal range VLANs stored?
Flash
NVRAM
Running-config
RAM
Where are extended range VLANs stored?
Flash
NVRAM
Running-config
ROM
If a technician entered the command vlan 10 into the global configuration prompt and then noticed it was supposed to be VLAN 100, how would he fix the error?
Enter vlan 100 in the global configuration prompt.
Enter no vlan and then vlan 100 in the global configuration prompt.
Enter no vlan 10 and then vlan 100 in the global configuration prompt.
Enter delete vlan 10 and then vlan 100 in the global configuration prompt.
If a technician removes port g0/4 from a vlan with the no switchport access vlan 10 command without entering any other commands, what happens to port g0/4?
It gets placed on the default VLAN.
It gets placed in a disabled state.
It remains on VLAN 10 until it is assigned to another VLAN.
The switch will give an error message and not change the VLAN.
If a switch is configured for VLAN 100, 101, 102 & 103 and has 6 ports of the switch set to each VLAN, what would happen to the 6 ports set to VLAN 102 if no vlan 102 was entered at the global configuration prompt?
The 6 ports would return to the default VLAN.
The 6 ports would no longer be able to communicate with any other hosts.
The 6 ports would become administratively down.
The 6 ports would move to the next available VLAN of 101.
If a technician entered this command: S1(config-if)#switchport trunk allowed vlan 99-103, and then right after entered the command: S1(config-if)#switchport trunk allowed vlan 104-110, what VLANs would be allowed on the trunk?
99-103
104-110
99-110
None, it's not an interface command.
Which DTP mode will make the interface actively attempt to convert a link to a trunk link?
access
dynamic auto
dynamic desirable
trunk
Which DTP combination will result in a trunk link between two Cisco 2960 switches?
Dynamic Auto - Dynamic Auto
Dynamic Auto - Access
Dynamic Desirable - Dynamic Auto
Dynamic Desirable - Access
What would the destination MAC address for a DHCPDISCOVER message be?
FF:FF:FF:FF:FF:FF
AA:AA:AA:AA:AA:AA
255.255.255.255
192.168.0.1
Which command is used to configure an interface as a DHCP client?
ip address dhcp
ip interface dhcp
ip address dhcp-client
interface dhcp client
Which command is used to verify whether DHCP relay is configured on an interface?
show ip interface
show interface brief
show dhcp interface
show dhcp brief
Which command is used to enable a router to relay DHCPv4 broadcasts?
ip helper-address
ip dhcp relay
ip router relay
ip router-relay
Which configuration would assign addresses from network 192.168.10.0/24 and exclude the first five addresses and the last address from the pool?
Which command displays the list of all IPv4 address to MAC address pairings provided by the DHCPv4 service?
show running-config | section dhcp
show ip dhcp binding
show ip dhcp server statistics
show run | dhcp info
If the packet header destination IP is 255.255.255.255, which two DHCP messages could the packet be from? (Choose two)
DHCPDISCOVER
DHCPOFFER
DHCPREQUEST
DHCPACK
DHCPNACK
If a host computer's DHCP lease is expiring, which two DHCP messages are sent to renew the lease? (Choose two)
DHCPDISCOVER
DHCPOFFER
DHCPREQUEST
DHCPACK
DHCPNACK
Which two steps of the DHCP process will be sent as unicast messages? (Choose two)
DHCPDISCOVER
DHCPOFFER
DHCPREQUEST
DHCPACK
DHCPNACK
If a host computer is set up for DHCPv4 and cannot reach a DHCP server what range will the IP address be in on the host computer?
169.254.0.0/16
196.128.0.0/24
255.255.0.0/16
172.254.0.0/16
What two items does a switch look at when a packet first arrives?
Source MAC address
Destination MAC address
Incoming port
Destination port
What will a switch do when an incoming frame's destination MAC address is not in the MAC address table?
Add the destination to the MAC address table.
Forward the frame out all ports except the one it arrived on.
Drop the frame.
Return the frame to the source MAC address.
Which type of switching has an error-checking characteristic?
Store-and-forward
Cut-through
Fragment-free
Keep-and-check
If the source port is 1Gbps and the destination port is 100Mbps, what will be used by the switch to prevent loss of data?
Automatic Buffering
Error Checking
Cut-through switching
CRC
Which switching method may cause invalid frames to be forwarded?
Store-and-Forward
Cut-through
Keep-and-check
CRC
Which device will divide a collision domain?
Switch
Hub
Router
Access Point
Which device will increase the size of a collision domain?
Switch
Hub
Router
Access Point
Which device will divide a broadcast domain?
Switch
Hub
Router
Access Point
Which characteristic of a switch may cost more but will help reduce congestion?
Fast port speeds
Fast internal switching
Large frame buffers
High port density
What is the term used to describe the port where a frame enters a switch?
Ingress
Egress
Input
Socket
Which message will a host use to determine the method it will use to obtain an IPv6 address?
Router Advertisement
Router Solicitation
Neighbor Advertisement
Neighbor Solicitation
Which flag tells the host that other information is available from a stateless DHCPv6 server?
A
O
M
S
Which flag tells the host to use Stateless Address Autoconfiguration to create an IPv6 GUA?
A
O
M
S
Which method does not require the services of a DHCPv6 Server?
SLAAC only
Stateless DHCP
Stateful DHCPv6
Static address
When using SLAAC, the 64-bit interface identifier is generated by which two methods? (Choose two)
Random generation by the OS
EUI-64
DAD
Router Advertisement
Which command will verify the name of the DHCP pool and its parameters?
show ipv6 dhcp pool
show ipv6 dhcp binding
show ipv6 dhcp interface
show ipv6 interface brief
