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Following questions and answers are all new published by Cisco Official Exam Center: http://www.lead2pass.com/400-101.html
QUESTION 501
Which two statements about NPTv6 are true? (Choose two.)
A. The translation is invisible to applications that hard code IP information within the application logic.
B. It is a one-way stateful translation for the IPv6 address.
C. Translation is 1:1 at the network layer.
D. It is a two-way stateless translation for the network prefix.
Answer: CD
QUESTION 502
Which three protocols can use enhanced object tracking? (Choose three.)
A. HSRP
B. Proxy-ARP
C. VRRP
D. GLBP
E. NTP
F. DHCP
Answer: ACD
QUESTION 503
What are the three primary components of NetFlow? (Choose three.)
A. Flow caching
B. A flow collector
C. The data analyzer
D. Flow sequence numbers
E. Cisco Express Forwarding
F. Multicast
Answer: ABC
QUESTION 504
Which two options are actions that EEM can perform after detecting an event? (Choose two.)
A. Place a port in err-disabled.
B. Generate an SNMP trap.
C. Reload the Cisco IOS Software.
D. Send an SMS.
Answer: BC
QUESTION 505
On which three options can Cisco PfR base its traffic routing? (Choose three.)
A. Time of day
B. An access list with permit or deny statements
C. Load-balancing requirements
D. Network performance
E. User-defined link capacity thresholds
F. Router IOS version
Answer: CDE
QUESTION 506
Which two routing protocols are not directly supported by Cisco PfR route control, and rely on the Cisco PfR subfeature PIRO? (Choose two.)
A. BGP
B. EIGRP
C. Static routing
D. OSPF
E. IS-IS
Answer: DE
QUESTION 507
Which two options does Cisco PfR use to control the entrance link selection with inbound
optimization? (Choose two.)
A. Prepend extra AS hops to the BGP prefix.
B. Advertise more specific BGP prefixes (longer mask).
C. Add (prepend) one or more communities to the prefix that is advertised by BGP.
D. Have BGP dampen the prefix.
Answer: AC
QUESTION 508
While you are troubleshooting network performance issues, you notice that a switch is periodically flooding all unicast traffic. Further investigation reveals that periodically the switch is also having spikes in CPU utilization, causing the MAC address table to be flushed and relearned. What is the most likely cause of this issue?
A. a routing protocol that is flooding updates
B. a flapping port that is generating BPDUs with the TCN bit set
C. STP is not running on the switch
D. a user that is downloading the output of the show-tech command
E. a corrupted switch CAM table
Answer: B
QUESTION 509
Your network is suffering from regular outages. After troubleshooting, you learn that the transmit lead of a fiber uplink was damaged. Which two features can prevent the same issues in the
future? (Choose two.)
A. root guard
B. loop guard
C. BPDU guard
D. UDLD
E. BPDU skew detection
Answer: BD
QUESTION 510
Which feature would prevent guest users from gaining network access by unplugging an IP phone and connecting a laptop computer?
A. IPSec VPN
B. SSL VPN
C. port security
D. port security with statically configured MAC addresses
E. private VLANs
Answer: D
QUESTION 511
Which two statements are true about the role of split horizon? (Choose two.)
A. It is a function used by routing protocols to install routes into routing table
B. It is a function that prevents the advertising of routes over an interface that the router is using
to reach a route
C. Its function is to help avoid routing loops.
D. It is a redistribution technique used by routing protocols
Answer: BC
QUESTION 512
Refer to the exhibit. Which result will the EEM applet in the exhibit produce? 
A. The output of show version will be executed every 5 hours.
B. The output of show log will be executed every 5 hours.
C. The output of show log will be executed every Friday.
D. The output of show log will be executed every 5 minutes.
Answer: B
Explanation:
The cron entry indicates 5 hours. So the output of show log will be executed every 5 hours.
QUESTION 513
Which two events occur when a packet is decapsulated in a GRE tunnel? (Choose two.)
A. The destination IPv4 address in the IPv4 payload is used to forward the packet.
B. The TTL of the payload packet is decremented.
C. The source IPv4 address in the IPv4 payload is used to forward the packet.
D. The TTL of the payload packet is incremented.
E. The version field in the GRE header is incremented.
F. The GRE keepalive mechanism is reset.
Answer: AB
QUESTION 514
Drag and Drop Question
Drag and drop each STP port role on the left to the matching statement on the right. 
Answer: 
QUESTION 515
Drag and Drop Question
Drag and drop the Cisco IOS XE subpackage on the left to the function it performs on the right. 
Answer: 
QUESTION 516
Drag and Drop Question
Drag and drop the VLAN number on the left to the corresponding default VLAN name on the right. 
Answer: 
QUESTION 517
Drag and Drop Question
Drag and drop the StackWise stack master election rule on the left into the correct priority order on the right. 
Answer: 
QUESTION 518
Drag and Drop Question
Drag and drop the IGMPv2 timer on the left to its default value on the right. 
Answer: 
QUESTION 519
Drag and Drop Question
Drag and drop the Metro Ethernet circuit on the left to the corresponding Service Type category on the right. 
Answer: 
QUESTION 520
Drag and Drop Question
Drag and drop the OSPFv3 LSA type on the left to the functionality it provides on the right. 
Answer: 
QUESTION 521
Drag and Drop Question
Drag and drop the OSPF network type on the left to the correct category of timers on the right. 
Answer: 
QUESTION 522
Drag and Drop Question
Drag and drop the BGP attribute on the left to the correct category on the right. 
Answer: 
QUESTION 523
Drag and Drop Question
Drag and drop the DMVPN command on the left to the corresponding function on the right. 
Answer: 
QUESTION 524
Drag and Drop Question
Drag and drop the OTV component on the left to the function it performs on the right. 
Answer: 
QUESTION 525
Drag and Drop Question
Drag and drop the TACACS+ configuration command on the left to the correct function it performs on the right. 
Answer:
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