2014 Latest Cisco 350-001 Dump Free Download(291-300)!
Which QoS mechanism will prevent a decrease in TCP performance?
http://www.routeralley.com/ra/docs/qos_congestion_avoidance.pdf (page 20
Which of the following is true about WRED?
A. WRED cannot be applied to the same interface as CQ, PQ, and WFQ.
B. WRED drops packets from all flows.
C. WRED cannot mark with a probability denominator.
D. WRED cannot be applied to the voice queue.
What needs to be enabled for Unicast RPF?
Cisco Express Forwarding switching must be enabled for Unicast RPF to function. This command has been enabled by default as of IOS version 12.2. If it is not enabled, administrators can enable it with the following global configuration command: ip cef
Which QoS mechanism will allow traffic flows an equal share of the bandwidth?
http://www.cisco.com/en/US/docs/ios/solutions_docs/qos_solutions/QoSVoIP/QoSVoIP.html (see low latency queuing)
If shaping is configured with 128 KB/s and a committed burst of 3200 B/s, what would be the value of TC?
A. 25 sec
B. 25 ms
C. 125 sec
D. 125 ms
3200 bits / 128000 bps == 0.025 sec ( 25 ms )
http://www.cisco.com/en/US/tech/tk543/tk545/technologies_tech_note09186a00800a3a25.shtml# comm-anc (search for value of Tc)
Which two statements are true about NBAR? (Choose two.)
A. NBAR performs protocol discovery.
B. NBAR is not dependent on CEF.
C. NBAR is used for traffic statistics collection.
D. NBAR performs traffic classification.
NBAR Can perform protocol discovery using the sniffing capability of its classification Engine. In cases where is NBAR is not required for defining the QoS Policy, NBAR protocol discovery mode can be used to get information about traffic present on the network and how much bandwidth each traffic type is using.
Command: LABRouter#show ip nbar protocol-discovery stats byte-rate <Interface>
You are the network administrator of a large Layer 2 network. At certain times during the day, users complain that the network is responding very slowly.
When troubleshooting the issue, you notice the election of a new root bridge with an unknown MAC address. Knowing that all access ports have the PortFast feature enabled, what should be
done to resolve the issue without losing redundant links?
A. Enable bpduguard globally.
B. Enable rootguard.
C. Enable loopguard.
D. Enable spanning tree.
E. Enable UDLD.
Loopguard, spanning tree, and UDLD are obvious red herrings. This leaves enabling rootguard or bpduguard. One key is that enabling bpduguard only affects ports that have portfast enabled; see the following URL under “Configuration.”
Which value should be used in the configuration register of a router in order to boot into bootstrap?
http://www.cisco.com/en/US/products/hw/routers/ps133/products_tech_note09186a008022493f.s html (configreg – see the table, 3rd row)
Which three combinations are valid PAgP configurations that will set up a channel? (Choose three.)
http://www.cisco.com/en/US/products/hw/switches/ps607/products_configuration_example09186 a0080094789.shtml (see port aggregation protocol)
Which value should be used in a router configuration register in order to ignore the content of the NVRAM?
http://books.google.com.pk/books?id=xbfe_tu9DI4C&pg=PA438&lpg=PA438&dq=Which+value+should+be+used+in+a+router+configuration+register+in+order+to+ignore+the+content+of+the+NVRAM&source=bl&ots=0KkTj9rqEk&sig=UF6KGI7ssMpv19ATDoPOYmFEh30&hl=en&sa=X&ei=WSfMUeP3BYaChQfzjIFI&redir_esc=y#v=onepage&q=Which%20value%20should%20be%20used%20in%20a%20router%20configuration%20register%20in%20order%20to%20ignore%20the%20content%20of%20th e%20NVRAM&f=false (see password recovery procedure, second para)
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