300-115 実際試験問題と解答 - 模擬練習 - 受験自信を増やす

Question No : 1
Which option is a benefits of configuring UDLD on a link between two switches?

A.UDLD remove switching loops
B.UDLD determines the best switching path
C.UDLD helps prevent switching loops
D.UDLD provides a backup mechanism for fiber

正解:

Question No : 2
Refer to the exhibit.

Which two statements can be derived from the output of the show standby command? (Choose two)

A.If Fa0/0 is shut down, the HSRP priority on R2 becomes 80
B.R2 is using the default HSRP hello and hold timers
C.R2 Fa1/0 regains mastership when the link comes back up
D.Router with IP 10.10.1.3 is active because it has a higher IP address
E.R2 becomes the active router after the hold time expires

正解:

Question No : 3
Which two to deploy UDLD on a switch are true? (Choose two)

A.It can interact with Layer 1 mechanisms to monitor the status of physical links
B.It can interact with Layer 2 mechanisms to monitor the status of physical links
C.It can replace Cisco Discovery Protocol
D.It can replace spanning tree
E.It can prevent forwarding loops that result from unidirectional links

正解:

Question No : 4
Which two statements about default FHRP behavior are true? (Choose two.)

A.A standby HSRP router becomes active if it has a higher priority than the priority of the current active router
B.A VRRP backup virtual router becomes the master router if its priority is higher than the priority of the current master router.
C.Unless specifically Configured, the priority of an HSRP router is 200.
D.A backup GLBP active virtual gateway can become active only if the current active virtual gateway fails.
E.Preemption is enabled by default.

正解:

Question No : 5
Which two tasks must you perform on a device to ensure that an Ether Channel operates at Layer3? (Choose two)

A.Configure Ether Channel directly on the interface
B.Configure the switchport mode access command on the device
C.Configure the no switchport command on the physical interface (s)
D.Configure the channel-group 10 mode on command on the port channel
E.Configure the switchport mode trunk command on the device

正解:

Question No : 6
Refer to the exhibit.

Which statement describes the result if a switch that is running PVST+ is added to this network?

A.Both switches operate in the PVST+ mode
B.Spanning tree is disabled automatically on the network
C.Both switches operate in the Rapid PVST+ mode
D.Spanning tree continues to operate in Rapid PVST+ on DSW2 and the new switch operates in PVST+

正解:

Question No : 7
Refer to the output below.

Which statements about the current configuration on port Gigabit Ethernet2/0/1 is true?

A.It is an access port in VLAN 700
B.It is an access port configured for a phone and a PC
C.It is a trunk port and the native VLAN is VLAN 700
D.It is a trunk port and the native VLAN is VL AN 1

正解:

Question No : 8
After reviewing UDLD status on switch ports, an engineer notices that the current bidirectional state for an access port is "Unknown".
Which statement describes what this indicates about the status of the port?

A.The bidirectional status of "unknown" indicates that the port will go into the disabled state because it stopped receiving UDLD packets from its neighbor.
B.UDLD moved into aggressive mode after inconsistent acknowledgements were detected.
C.The port is fully operational and no known issues are detected.
D.The UDLD port is placed in the "unknown" state for 5 seconds until the next UDLD packet is received on the interface.

正解:

Question No : 9
Which feature actively validates DHCP message and drops invalid messages?

A.DHCP snooping
B.DHCP inspection
C.ICMP snooping
D.DHCP host tracking
E.Dynamic ARP inspection
F.CGMP binding

正解:

Question No : 10
Which technology provides a multichassis IP connection between VSS-enabled switches and downstream devices?

A.ICCP
B.PAgP
C.MEC
D.LACP
E.BFD
F.LAG

正解:

Question No : 11
Which two control protocol use the native VLAN 1 by default? (Choose two)

A.STP
B.CDP
C.VTP
D.LACP
E.NTP

正解:

Question No : 12
Refer to the exhibit.

If all switches in this environment are running PVSTP+, which switch is elected as the STP root switch when a new VLAN is added to the network?

A.switch 3
B.switch 5
C.switch 4
D.switch 1
E.switch 2

正解:

Question No : 13
Which two statements about GLBP are true? (Choose two)

A.Member devices send hello message to multicast address 224.0.0.39
B.It supports up to 32 groups on a single interface
C.The AVG assigns virtual MAC addresses to all group member
D.Member devices can elect one or more AVGs
E.Member devices must elect exactly one AVG

正解:

Question No : 14
If a switch stack is configured to use SDM template, where are the templates stored?

A.TFTP server
B.flash memory
C.all stack members
D.stack master

正解:

Question No : 15
Which command is needed to enable DHCP snooping if a switchport is connected to a DHCP server?

A.ip dhcp snooping information
B.ip dhcp snooping
C.ip dhcp trust
D.ip dhcp snooping trust

正解:

Cisco 300-115 SWITCH 問題練習