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Q121. Refer to the exhibit.
Which additional information must you specify in this configuration to capture NetFlow traffic?
A. ingress or egress traffic
B. the number of cache entries
C. the flow cache active timeout
D. the flow cache inactive timeout
Answer: A
Explanation:
Configuring NetFlow
Perform the following task to enable NetFlow on an interface. SUMMARY STEPS
1. enable
2. configure terminal
3. interface type number
4. ip flow {ingress | egress}
5. exit
6. Repeat Steps 3 through 5 to enable NetFlow on other interfaces.
7. end
DETAILED STEPS
Command or Action
Purpose
Step 1
enable
Example:
Router> enable Enables privileged EXEC mode. .
Enter your password if prompted.
Step 2
configure terminal Example:
........
Example:
Router(config)# interface ethernet 0/0
Specifies the interface that you want to enable NetFlow on and enters interface configuration mode.
Step 4
ip flow {ingress | egress}
Example:
Router(config-if)# ip flow ingress
Enables NetFlow on the interface.
. ingress—Captures traffic that is being received by the interface
. egress—Captures traffic that is being transmitted by the interface
Step 5
exit
Example:
Router(config-if)# exit
(Optional) Exits interface configuration mode and enters global configuration mode.
Note
You need to use this command only if you want to enable NetFlow on another interface.
Step 6
Repeat Steps 3 through 5 to enable NetFlow on other interfaces.
This step is optional.
Step 7
end
Example:
Router(config-if)# end Exits the current configuration mode and returns to privileged EXEC mod
Reference: http://www.cisco.com/c/en/us/td/docs/ios/netflow/configuration/guide/12_2sr/nf_12_2sr_boo k/cfg_nflow_data_expt.html
Q122. When the BGP additional-paths feature is used, what allows a BGP speaker to differentiate between the different available paths?
A. The remote BGP peer prepends its own next-hop address to the prefix.
B. A unique path identifier is encoded into a dedicated field to the NLRI.
C. A route distinguisher is appended to the prefix by the receiving BGP speaker.
D. The additional path information is encoded in an extended community.
Answer: B
Q123. Refer to the exhibit.
Which statement about this device configuration is true?
A. The NMS needs a specific route configured to enable it to reach the Loopback0 interface of the device.
B. The ifindex of the device could be different when the device is reloaded.
C. The device will allow anyone to poll it via the public community.
D. The device configuration requires the AuthNoPriv security level.
Answer: B
Explanation:
One of the most commonly used identifiers in SNMP-based network management applications is the Interface Index (ifIndex) value. IfIndex is a unique identifying number associated with a physical or logical interface. For most software, the ifIndex is the name of the interface. Although relevant RFCs do not require that the correspondence between particular ifIndex values and their interfaces be maintained across reboots, applications such as device inventory, billing, and fault detection depend on this correspondence. Consider a situation where a simple monitoring software (like MRTG) is polling the interface statistics of the router specific serial interface going to the internet.
As an example, you could have these conditions prior to re-initialization:
physical port ifIndex
ethernet port
tokenring port
2
serial port
3
Therefore, the management application is polling the ifIndex 3, which corresponds to the serial port.
After the router re-initialization (reboot, reload and so on) the conditions change to something similar to this:
physical port
ifIndex
ethernet port
3
tokenring port
1
serial port
2
The management application continues polling the ifIndex 3, which corresponds now to the ethernet port. Therefore, if the management application is not warned by a trap, for example, that the router has been rebooted, the statistics polled could be completely wrong.
Reference: http://www.cisco.com/c/en/us/support/docs/ip/simple-network-management-protocol-snmp/28420-ifIndex-Persistence.html
Q124. DRAG DROP
Drag and drop the fragmentation characteristics on the left to the corresponding protocol on the right.
Answer:
Q125. Which trunking configuration between two Cisco switches can cause a security risk?
A. configuring different native VLANs on the switches
B. configuring different trunk modes on the switches
C. configuring mismatched VLANs on the trunk
D. disabling DTP on the trunk ports
E. configuring incorrect channel-groups on the switches
Answer: A
Down to date latest ccie r&s dumps:
Q126. Which three statements about IS-IS are true? (Choose three.)
A. IS-IS is not encapsulated in IP.
B. IS-IS is directly encapsulated in the data link layer.
C. 0XFEFE is used in the Layer 2 header to identify the Layer 3 protocol.
D. IS-IS uses protocol ID 93.
E. IS-IS can be used to route the IPX protocol.
F. IS-IS is an IETF standard.
Answer: A,B,C
Explanation:
IS-IS is an Interior Gateway Protocol (IGP) for routing OSI. IS-IS packets are not encapsulated in CLNS or IP but are encapsulated directly in the data-link layer. The IS-IS protocol family is OSI, and values such as 0xFE and 0xFEFE are used by the data-link protocol to identify the Layer 3 protocol as OSI.
Reference: http://www.cisco.com/en/US/products/ps6599/products_white_paper09186a00800a3e6f.sh tml
Q127. Which two statements about OSPF default route injection are true? (Choose two.)
A. The ABR requires manual configuration to send a default route into an NSSA area.
B. The ABR injects a default route into a Totally Stub Area.
C. In a stub area, the ASBR generates a summary LSA with link-state ID 0.0.0.0.
D. If the default route is missing from the routing table, the ASBR can use the default-information originate command to advertise the default into the OSPF domain.
E. By default, OSPF normal areas will generate default routes into the routing domain if a default route exists.
Answer: A,B
Q128. A network engineer is extending a LAN segment between two geographically separated data centers. Which enhancement to a spanning-tree design prevents unnecessary traffic from crossing the extended LAN segment?
A. Modify the spanning-tree priorities to dictate the traffic flow.
B. Create a Layer 3 transit VLAN to segment the traffic between the sites.
C. Use VTP pruning on the trunk interfaces.
D. Configure manual trunk pruning between the two locations.
Answer: C
Q129. Refer to the exhibit.
ASN 64523 has a multihomed BGP setup to ISP A and ISP B. Which BGP attribute can you set to allow traffic that originates in ASN 64523 to exit the ASN through ISP B?
A. origin
B. next-hop
C. weight
D. multi-exit discriminator
Answer: D
Explanation:
MED is an optional nontransitive attribute. MED is a hint to external neighbors about the preferred path into an autonomous system (AS) that has multiple entry points. The MED is also known as the external metric of a route. A lower MED value is preferred over a higher value. Example at reference link below:
Reference: http://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/13759-37.html
Q130. DRAG DROP
Drag and drop the IPv6 prefix on the left to the correct address type on the right.
Answer: