2013 Latest Pass4Sure 350-029 Exam Questions 256-260

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QUESTION 256
Which two options best describe the purpose of session ID and cookie field in a L2TPv3 packet?
A. The session ID is a 32-bit locally significant field used to identify the call on the destination or egress tunnel endport. The session ID will be negotiated by the control connection or statically defined if using the L2TP v3 data plane only
B. The cookie is a variable length(with a maximum of eight bytes),word-aligned optional field. The control connection can negotiate this as an additional level of guarantee beyond the regular session ID lookup to make sure that a data message has been directed to the correct session or that any recently reused session ID will not be misdirected
C. The cookie is a 32-bit locally significant field used to identify the call on the destination or egress tunnel endpoint. The cookie will be negotiated by the control connection or statically defined if using the L2TPv3 data plane only
D. The session ID is a variable length(with a maximum of eight bytes),word-aligned optional field. The control connection can negotiate this as an additional level of guarantee beyond the regular cookie lookup to make sure that a data message has been directed to the correct session or that any recently reused cookie will not be misdirected.
Correct Answer: AB

QUESTION 257
As described in rfc 3270,short-pipe mode operstion, the PE to CE egress polices are based upon:
A. customer marking
B. remarked IP tos value
C. Qos groups/discard class
D. Innerrnost label exp value
E. MDRR quantam
F. topmost label exp value
Correct Answer: A

QUESTION 258
The Outer.1Q tag represents customer VLAN ID and inner.1Q tag represents Provider VLAN (PVLAN )
A. The Outer.1Q tag represents customer VLAN ID and inner.1Q tag represents Provider VLAN (PVLAN )
B. It is an effective way to achieve VLAN transparency between Provider and enterprise customer by
tunneling one ser of VLAN tags inside a second VLAN tag
C. The Outer.1Q tag represents Service VLAN (PVLAN) and inner.1Q tag represents customer VLAN
D. QinQ is a way to hide native VLAN which can conflict with Provider native VLAN
Correct Answer: BC

QUESTION 259
Based on the following output in R1, which statement is true R1#show mpls forwarding-table 50.0.0.3 detail
Local Outgoing Prefix Bytes tag Outgoing Next Hop tag tag or VC or Tunnel Id switched interface
19 17 50.0.0.3/32 0 Et0/0 192.168.0.14
A. If a labeled packet arrives with the top most label of 17, all the labels will be removed and a clear IP
packet is sent to Next Hop 192.168.0.14 on Ethernet 0/0.
B. If a labeled packet arrives with the top most label of 17, it will be replaced with label 19 and sent out on
Ethernet 0/0 interface.
C. None of the above.
D. If a labeled packet arrives with the topmost label of 19, the label is replaced with label 17 and the packet is sent out on the Ethernet 0/0 interface.
Correct Answer: D

QUESTION 260
BCP (Best Common Practices) 38/RFC 2827 Ingress and Egress Packet Filtering would help mitigate what classification of attack?
A. Denial of service attack
B. Sniffing attack
C. Spoofing attack
D. Reconnaisance attack
E. Port Scan attack
Correct Answer: C

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