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300-115 SWITCH – Cisco: https://www.cisco.com/c/en/us/training-events/training-certifications/exams/current-list/switch2.html
Latest effective Cisco 300-115 Exam Practice Tests
QUESTION 1
What is the effect of VTP transparent?
A. It will pass VTP information.
B. It will not pass VTP information.
C. http://certbus.com
D. http://certbus.com
Correct Answer: A
QUESTION 2
A. RSPAN VLAN carries only RSPAN traffic
B. On a switch there can be only one RSPAN VLAN
C. RSPAN VLAN carries RSPAN traffic along multiple switches
Correct Answer: C
QUESTION 3
Which command do you use to configure EtherChannel guard feature?
A. SW(config)# spanning-tree etherchannel guard misconfig
B. SW(config)# portchannel etherchannel guard misconfig
C. SW(config-if)# portchannel etherchannel guard misconfig
D. SW(config-if)# spanning-tree etherchannel guard misconfig
Correct Answer: A
QUESTION 4
Which command displays the current SDM template?
A. show sdm prefer routing
B. show sdm prefer layer 2
C. show sdm prefer
D. show sdm prefer default
Correct Answer: C
QUESTION 5
A. Prevent unknown switch be a root port
B. Root-inconsistent
Correct Answer: B
QUESTION 6
Which statement about the use of PAgP link aggregation on a Cisco switch that is running Cisco IOS Software is true?
A. PAgP modes are off, auto, desirable, and on. Only the combinations auto-desirable, desirable- desirable, and on-on
allow the formation of a channel.
B. PAgP modes are active, desirable, and on. Only the combinations active-desirable, desirable- desirable, and on-on
allow the formation of a channel.
C. PAgP modes are active, desirable, and on. Only the combinations active-active, desirable- desirable, and on-on allow
the formation of a channel.
D. PAgP modes are off, active, desirable, and on. Only the combinations auto-auto, desirable- desirable, and on-on
allow the formation of a channel.
Correct Answer: A
PAgP modes are off, auto, desirable, and on. Only the combinations auto-desirable, desirable- desirable, and on-on will
allow a channel to be formed.
The PAgP modes are explained below.
1.on: PAgP will not run. The channel is forced to come up. 2.off: PAgP will not run. The channel is forced to remain
down. 3.auto: PAgP is running passively. The formation of a channel is desired; however, it is not initiated. 4.desirable:
PAgP
is running actively. The formation of a channel is desired and ini- tiated. Only the combinations of auto-desirable,
desirable-desirable, and on-on will allow a channel to be formed. If a device on one side of the channel does not support
PAgP,
such as a router, the device on the other side must have PAgP set to on.
Reference: http://www.cisco.com/c/en/us/support/docs/switches/catalyst-2900-xl-series- switches/21041- 131.html
QUESTION 7
Refer to the exhibit.
Currently, R1 is the VRRP master virtual router. Which statement about the VRRP configuration on R1 and R2 is true?
A. Communication between VRRP members is encrypted using MD5.
B. R1 has a route to 10.10.1.1/32 in its routing table.
C. R2 does not have a route to 10.10.1.11/32 in its routing table.
D. R2 becomes master if R1 reboots or track in R1 does not fail.
Correct Answer: B
QUESTION 8
Which command enables PortFast and disables port channel on a physical interface?
A. switchport mode dynamic auto
B. switchport host
C. switchport mode access
D. spanning-tree portfast
Correct Answer: D
QUESTION 9
which command enables root guard on a cisco switch?
A. switch(config-if)# spanning-tree guard root
B. switch(config)# spanning-tree guard root
C. switch(config-if)# spanning-tree guard-root
D. switch(config)# spanning-tree root guard
E. switch(config-if)# spanning-tree root guard
Correct Answer: A
QUESTION 10
A single server in a company is connected via EtherChannel to a single upstream switch. Which EtherChannel load
balancing method on the switch makes optimal use of the redundant links as traffic flows from the router to the server?
A. source and destination MAC address
B. destination MAC address
C. source IP address
D. source MAC address
Correct Answer: C
QUESTION 11
While doing network discovery using Cisco Discovery Protocol, it is found that rapid error tracking is not currently
enabled. Which option must be enabled to allow for enhanced reporting mechanisms using Cisco Discovery Protocol?
A. Cisco Discovery Protocol version 2
B. Cisco IOS Embedded Event Manager
C. logging buffered
D. Cisco Discovery Protocol source interface
E. Cisco Discovery Protocol logging options
Correct Answer: A
CDP Version 1 — This is the first version of CDP which was used for the discovery of Cisco devices in the network. This
version is mainly used for backward compatibility.
CDP Version 2 — This is the most recent version of CDP which has enhanced features such as rapid reporting
mechanism, which is used to track down errors and minimize costly downtime. It allows you to track instances even if
the native
VLAN ID or port duplex states do not match between connecting devices.
This is the default version on all switches.
Reference: http://sbkb.cisco.com/CiscoSB/GetArticle.aspx?
docid=0ed03cbac49b446ab390a657917d817c_Cisco_Discovery_Protocol_CDP__Properties_Set
tings_on_Sx500_S.xmlandpid=2andconverted=0
QUESTION 12
What is the default HSRP priority?
A. 50
B. 100
C. 120
D. 1024
Correct Answer: B
standby [group-num- Set a priority value used in choosing the active router. The ber] priority priority range is 1 to 255;
the default priority is 100. The highest [preempt [delay delay]] number represents the highest priority.
(Optional) group-number–The group number to which
the command applies.
(Optional)
preempt–Select so that when the local router has a higher priority than the active router, it assumes control as the
active router.
(Optional)
delay–Set to cause the local router to post- pone taking over the active role for the shown number of sec- onds. The
range is 0 to 36000 (1 hour); the default is 0 (no de- lay before taking over). Use the no form of the command to restore
the default values.
Reference:
http://www.cisco.com/en/US/docs/switches/lan/catalyst3550/software/release/12.1_19_ea1/confi guration/
guide/swhsrp.html#wp1044327
QUESTION 13
Which two statements about err-disable is true? (Choose two.)
A. When the port goes to err-disabled, the link of the switch light goes to solid orange.
B. It is on auto when port-security is on.
C. https://www.leads4pass.com/300-115.html
D. https://www.leads4pass.com/300-115.html
Correct Answer: AB
QUESTION 14
Where can you disable MAC address learning on the switch?
A. On the VLAN interface.
B. Per switch port.
C. A VLAN filter template is necessary.
D. With the global command mac-address disable.
Correct Answer: A
QUESTION 15
Which two statements about PortFast are true? (Choose two.)
A. It forces the port to skip all spanning-tree states.
B. The port is error-disabled if it attempts to move into the listening or learning states.
C. It allows the port to skip the learning state only
D. The port moves immediately to the forwarding state when a device is connected.
E. It is most appropriate for ports that provide connectivity to individual workstations or servers
Correct Answer: DE
QUESTION 16
Which file lists all of the configured VLANs on a switch?
A. flash:vlan.dat
B. nvram:vlans.xml
C. flash:vlans.txt
D. nvram:vlan.txt
E. flash.config.txt
F. flash:vlan.xml
Correct Answer: A
QUESTION 17
Lab Simulation – MLS and EIGRP
You have been tasked with configuring multilayer SwitchC, which has a partial configuration and has been attached to
RouterC as shown in the topology diagram. You need to configure SwitchC so that Hosts H1 and H2 can successfully
ping
the server S1. Also SwitchC needs to be able to ping server S1. Due to administrative restrictions and requirements you
should not add/delete vlans or create trunk links.
Company policies forbid the use of static or default routing. All routes must be learned via EIGRP 65010 routing
protocol.
You do not have access to RouteC. RouterC is correctly configured. No trunking has been configured on RouterC.
Routed interfaces should use the lowest host on a subnet when possible. The following subnets are available to
implement
this solution:
-10.10.10.0/24
-190.200.250.32/27
–
190.200.250.64/27 Hosts H1 and H2 are configured with the correct IP address and default gateway. SwitchC uses
Cisco as the enable password. Routing must only be enabled for the specific subnets shown in the diagram. Note: Due
to administrative restrictions and requirements you should not add or delete VLANs, changes VLAN port assignments or
create trunks. Company policies forbid the use of static or default routing. All routes must be learned via the EIGRP
routing protocol.
A.
See the explanation
Correct Answer: A
In real life, there are two ways to configure interVLAN routing in this case:
+ Use RouterC as a “router on a stick” and SwitchC as a pure Layer2 switch. Trunking must be established between
RouterC and SwitchC. + Only use SwitchC for interVLAN routing without using RouterC, SwitchC should be configured
as a Layer 3 switch (which supports ip routing function as a router). No trunking requires.
The question clearly states “No trunking has been configured on RouterC” so RouterC does not contribute to interVLAN
routing of hosts H1 and H2 -> SwitchC must be configured as a Layer 3 switch with SVIs for interVLAN routing.
We should check the default gateways on H1 and H2. Click on H1 and H2 and type the “ipconfig” command to get their
default gateways.
C:\>ipconfig
We will get the default gateways as follows: Host1:
+
Default gateway: 190.200.250.33 Host2:
+
Default gateway: 190.200.250.65
Now we have enough information to configure SwitchC (notice the EIGRP AS in this case is 650)
Note: VLAN2 and VLAN3 were created and gi0/10, gi0/11 interfaces were configured as access ports so we don\\’t need
to configure them in this sim.
SwitchC# configure terminal
SwitchC(config)# int gi0/1
-> without using this command, the simulator does not let you assign IP address on Gi0/1 interface.
SwitchC(config-if)#no switchport
->RouterC has used IP 10.10.10.1 so this is the lowest usable IP address.
SwitchC(config-if)# ip address 10.10.10.2 255.255.255.0
SwitchC(config-if)# no shutdown
SwitchC(config-if)# exit
SwitchC(config)# int vlan 2
SwitchC(config-if)# ip address 190.200.250.33 255.255.255.224
SwitchC(config-if)# no shutdown
SwitchC(config-if)# int vlan 3
SwitchC(config-if)# ip address 190.200.250.65 255.255.255.224
SwitchC(config-if)# no shutdown
SwitchC(config-if)#exit
(Notice: MLS will not work without this command)
SwitchC(config)# ip routing
SwitchC(config)# router eigrp 650
SwitchC(config-router)# network 10.10.10.0 0.0.0.255
SwitchC(config-router)# network 190.200.250.32 0.0.0.31
SwitchC(config-router)# network 190.200.250.64 0.0.0.31
NOTE: THE ROUTER IS CORRECTLY CONFIGURED, so you will not miss within it in the exam , also don\\’t
modify/delete any port just do the above configuration. Also some reports said the “no auto-summary” command can\\’t
be used in the
simulator, in fact it is not necessary because the network 190.200.0.0/16 is not used anywhere else in this topology.
In order to complete the lab , you should expect the ping to SERVER to succeed from the MLS , and from the PCs as
well.
Also make sure you use the correct EIGRP AS number (in the configuration above it is 650 but it will change when you
take the exam) but we are not allowed to access RouterC so the only way to find out the EIGRP AS is to look at the
exhibit above. If you use wrong AS number, no neighbor relationship is formed between RouterC and SwitchC.
In fact, we are pretty sure instead of using two commands “network 190.200.250.32 0.0.0.31” and “network
190.200.250.64 0.0.0.31″ we can use one simple command “network 190.200.0.0” because it is the nature of distance
vector routing
protocol like EIGRP: only major networks need to be advertised; even without “no auto-summary” command the network
still works correctly. But in the exam the sim is just a flash based simulator so we should use two above commands,
just
for sure. But after finishing the configuration, we can use “show run” command to verify, only the summarized network
190.200.0.0 is shown.
QUESTION 18
What is the default interval at which Cisco devices send Cisco Discovery Protocol advertisements?
A. 30 seconds
B. 60 seconds
C. 120 seconds
D. 300 seconds
Correct Answer: B
: Cisco Discovery Protocol is a Layer 2, media-independent, and network-independent protocol that networking
applications use to learn about nearby, directly connected devices. Cisco Discovery Protocol is enabled by default. Each
device configured for Cisco Discovery Protocol advertises at least one address at which the device can receive
messages and sends periodic advertisements (messages) to the well-known multicast address 01:00:0C:CC:CC:CC.
Devices discover each other by listening at that address. They also listen to messages to learn when interfaces on other
devices are up or go down. Advertisements contain time-to- live information, which indicates the length of time a
receiving device should hold Cisco Discovery Protocol information before discarding it. Advertisements supported and
configured in Cisco software are sent, by default, every 60 seconds. Reference: http://www.cisco.com/en/US/docs/ios-
xml/ios/ cdp/ configuration/15- mt/nm-cdp- discover.html
QUESTION 19
Which two settings are part of a Default LLDP configuration ?(Choose Two)
A. The LLDP hold time is 60 seconds.
B. The LLDP global state is Disabled.
C. The LLDP reinitialisation delay is 5 seconds.
D. The LLDP interface state is Enabled.
E. The LLDP timer is 60 seconds.
Correct Answer: BD
QUESTION 20
A. (config) no cdp run
B. (config) cdp disable
C. (config-if) no cdp enable
D. (config-if) no cdp run
E. (config-if) cdp disable
F. (config) no cdp enable
Correct Answer: AC
QUESTION 21
Which two tasks must you perform to enable DHCP option 82 on an untrusted port? (Choose two)
A. Enter the ip dhcp snooping information option replace command to enable DHCP option 82.
B. Enter the ip dhcp snooping trust command to enable DHCP option 82.
C. Enter the ip dhcp snooping information option allow-untrusted command to enable the untrusted port.
D. Enter the ip dhcp snooping information option command to enable option 82.
E. Enter the ip dhcp snooping trust command to enable data insertion DHCP option 82.
Correct Answer: CD
QUESTION 22
Which two statements are true about StackWise? (Choose two.)
A. It looks like one device.
B. It can use one IP address.
C. It can use multiple IP address.
D. It looks like a multiple device.
E. StackWise manages like a hybrid device.
Correct Answer: AB
QUESTION 23
While doing network discovery using Cisco Discovery Protocol, it is found that rapid error tracking is not currently
enabled. Which option must be enabled to allow for enhanced reporting mechanisms using Cisco Discovery Protocol?
A. Cisco Discovery Protocol version 2
B. Cisco IOS Embedded Event Manager
C. logging buffered
D. Cisco Discovery Protocol source interface
E. Cisco Discovery Protocol logging options
Correct Answer: A
CDP Version 1 — This is the first version of CDP which was used for the discovery of Cisco devices in the network. This
version is mainly used for backward compatibility.
CDP Version 2 — This is the most recent version of CDP which has enhanced features such as rapid reporting
mechanism, which is used to track down errors and minimize costly downtime. It allows you to track instances even if
the native
VLAN ID or port duplex states do not match between connecting devices.
This is the default version on all switches.
Reference: http://sbkb.cisco.com/CiscoSB/GetArticle.aspx?
docid=0ed03cbac49b446ab390a657917d817c_Cisco_Discovery_Protocol_CDP__Properties_Set
tings_on_Sx500_S.xmlandpid=2andconverted=0
QUESTION 24
A question about configuring AAA TACACS+ authentication with fall back to local user database and commands were
given?
A. aaa authentication login default tacacs+ local
B. http://leads4pass.com
C. http://leads4pass.com
D. http://leads4pass.com
Correct Answer: A
QUESTION 25
What happens when a destination SPAN port that is configured as EtherChannel receives traffic?
A. Shutdown….
B. Nothing….
Correct Answer: A
QUESTION 26
Which Firepower Management Center feature detects and blocks exploits and hack attempts?
A. intrusion prevention
B. advanced malware protection (AMP)
C. contenxsat blocker
D. file control
Correct Answer: A
QUESTION 27
Which statement about the default Switch Database Management template is true?
A. The default template disables routing and supports the maximum number of unicast MAC addresses
B. The default template gives balance to all functions.
C. The default template maximizes system resources for unicast routing
D. The default template maximizes system resources for access control lists
Correct Answer: B
QUESTION 28
Which statement about the default Switch Database Management template is true?
A. The default template disables routing and supports the maximum number of unicast MAC addresses
B. The default template gives balance to all functions.
C. The default template maximizes system resources for unicast routing
D. The default template maximizes system resources for access control lists
Correct Answer: B
QUESTION 29
What happens spoofed packet or something like untrusted packet is detected? (Choose three)
A. log
B. deletes
C. intercepts
D. accepts
E. discad
Correct Answer: ACE
QUESTION 30
Which two tasks must you perform to enable AAA operations with a remote security database? (Choose two)
A. Configure network equipment to query the remote security database.
B. Configure a user profile in the local database of each device to which the user will have access.
C. Configure SSH to provide remote access to network equipment.
D. Configure Cisco Discovery Protocol on all interfaces used for authentication
E. Configure user profiles on the remote security database
Correct Answer: BE
QUESTION 31
How can you set VLAN 99 on a trunk to become a native VLAN?
A. switchport trunk native vlan 99
B. switchport trunk vlan 99 native
C. switchport native vlan 99 trunk
D. switchport native trunk vlan 99
E. switchport vlan 99 native
F. switchport vlan native trunk 99
Correct Answer: A
QUESTION 32
Which command globally enables AAA on a device?
A. aaa new-model
B. aaa authentication
C. aaa authorization
D. aaa accounting
Correct Answer: A
To configure AAA authentication, enable AAA by using the aaa new-model global configuration command.
AAA features are not available for use until you enable
AAA globally by issuing the aaa new-model command.
Reference:
http://www.cisco.com/c/en/us/td/docs/ios/12_2/security/configuration/guide/fsecur_c/scfathen.ht ml
QUESTION 33
Which option lists the modes that are available for configuring UDLD on a Cisco switch?
A. normal and aggressive
B. active and aggressive
C. normal and active
D. normal and passive
E. normal and standby
Correct Answer: A
The Cisco-proprietary UDLD protocol monitors the physical configuration of the links between devices and ports that
support UDLD. UDLD detects the existence of
unidirectional links. When a unidirectional link is detected, UDLD puts the affected port into the errdisabled state and
alerts the user. UDLD can operate in either normal or aggressive mode.
Reference:
http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configuration/guide/udl d.html
QUESTION 34
Which acts like a client when using TACACS+?
A. router
B. client workstation
C. client using wireless
D. AD server
Correct Answer: B
QUESTION 35
Refer to the exhibit, which statement abort the current configuration on port GigabitEthernet2/0/1 is true?
A. It is an access port configured for a phone and a PC
B. It is a trunk port and the native VLAN is VLAN1
C. It is a trunk port and the natrve VL AN m VLAN 700
D. It is an access port in VLAN 700
Correct Answer: B
QUESTION 36
A question about how to recover err-disable. (Choose two.)
A. UDLD reset
B. Err-disable auto recovery
C. Shut and restart
D. UDLD recovery
Correct Answer: AB
QUESTION 37
Which errdisable recovery command option enables a device to recover from an incorrect SFP state?
A. port-mode-failure
B. gbic-invalid
C. sfp-config-mismatch
D. link-monitor-failure
Correct Answer: B
QUESTION 38
Which VRRP router is responsible for forwarding packets that are sent to the IP addresses of the virtual router?
A. virtual router master
B. virtual router backup
C. virtual router active
D. virtual router standby
Correct Answer: A
VRRP Definitions VRRP Router A router running the Virtual Router Redundancy Protocol. It may participate in one or
more virtual routers. Virtual Router An abstract object managed by VRRP that acts as a default router for hosts on a
shared LAN. It consists of a Virtual Router Identifier and a set of associated IP address(es) across a common LAN. A
VRRP Router may backup one or more virtual routers. IP Address Owner The VRRP router that has the virtual router\\’s
IP address(es) as real interface address (es). This is the router that, when up, will respond to packets addressed to one
of these IP addresses for ICMP pings, TCP connections, etc. Primary IP Address An IP address selected from the set of
real interface addresses. One possible selection algorithm is to always select the first address. VRRP advertisements
are always sent using the primary IP address as the source of the IP packet. Virtual Router Master The VRRP router
that is assuming the responsibility of forwarding packets sent to the IP address(es) associated with the virtual router,
and answering ARP requests for these IP addresses. Note that if the IP address owner is available, then it will always
become the Master. Reference: http:// www.ietf.org/rfc/rfc3768.txt
QUESTION 39
Which two statements about RADIUS are true? (Choose two)
A. it uses UDP packets to communicate.
B. It supports several less-common protocols in addition to IP
C. It combines authentication and authorization functions.
D. It is less secure than TACACS+ because it encrypts only the user name and password.
E. It combines authentication and accounting functions.
Correct Answer: AC
QUESTION 40
Which two tasks must you perform on a device to ensure that an EtherChannel operates at Layer 3? (Choose two.)
A. Configure the channel-group 10 mode on command on the port channel.
B. Configure EtherChannel directly on the interface
C. Configure the switchport mode access command on the device
D. Configure the no switchport command on the physical interface(s).
E. Configure the switchport mode trunk command on the device
Correct Answer: BD
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This is the latest update released by the Cisco CCDP implementing Cisco IP switched Networks (SWITCH v2.0) 300-115 exam questions and answers,
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