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QUESTION 156
What three major tasks are performed by a Designated Intermediate System in an ISIS pseudonode environment? (Choose three.)
A. updating the pseudonode LSP
B. maintaining pseudonode link-state information
C. creating the pseudonode LSP
D. flooding LSPs over the LAN
E. election of the pseudonode
Answer: ACD
QUESTION 157
The mechanisms for distributing LDP are:
A. CEF and the FIB table
B. UDP and IP
C. A and B
D. RSVP and CEF
E. LDP and RSVP
Answer: E
QUESTION 158
Refer to the exhibit. Why is R3 unable to install 1.1.1.1/32 in its routing table?
A. 11.11.11.11/32 exists in the routing table, so the conditional advertising is not working.
B. The route is filtered out by the ip prefix-list ROUTE-IN command.
C. 11.11.11.11/32 is advertising in the BGP table, so conditional advertising is not working.
D. The bgp redistribute-internal command is missing under the R2 BGP process.
Answer: D
Explanation:
You can’t redistribute from iBGP to any IGP unless you have “bgp redistribute-internal”.
QUESTION 159
Refer to the exhibit. A web server is connected to a switch via two Gigabit Ethernet links. These two links are bundled into a single logical link that provides the aggregate bandwidth of 2 Gbps. The support engineer notices that traffic from the Internet to the web server uses both Gigabit Ethernet links. However, traffic from the web server to the Internet uses only one link.
Which CLI command on the exhibit causes this behavior?
A. lacp port-priority 32768 in interface configuration mode
B. channel-group 5 mode passive
C. lacp port-priority 32768 in global configuration mode
D. port-channel load-balance dst-mac
Answer: D
QUESTION 160
Refer to the exhibit. Which IOS command under the BGP VPNv4 address family implements a secondary backup path to the destination 192.168.1.1?
A. maximum-paths ibgp2
B. bgp additional-paths install
C. bgp recursion host
D. bgp advertise-best-external
Answer: B
Explanation:
http://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-2/routing/command/reference/b_routing_cr42crs/b_routing_cr42crs_chapter_01.html#wp28 41279186
QUESTION 161
In which two ways does the BGP graceful capability preserve prefix information during a restart? (Choose two)
A. The peer router immediately removes the BGP routers that it learned from the restarting router from its BGP routing tables.
B. The router establishes BGP sessions with other routers and relearns the BGP routes from others that are also capable of graceful restart. The restarting router waits to receive updates from the neighboring routers.
C. The peer router sends an end-of-RIB message to the restarting router.
D. The restarting router removes any stale prefixes after the timer for stale entries expires.
E. The restarting router does not remove any stale prefixes after the timer for stale entries expires.
Answer: BD
QUESTION 162
Which two statements about the bgp deterministic-med and bgp always-compare-med commands are true? (Choose two)
A. The bgp deterministic-med command is used to influence the BGP route selection process to cause the
MED attribute to have higher precedence over the AS path length
B. The bgp always-compare command is used to influence the BGP route selection process to cause the MED attribute to have higher precedence over the AS path system.
C. Enabling the bgp deterministic-med command ensures the comparison of the MED variable when choosing routes advertised by different peers in the same autonomous system.
D. Enabling the bgp always-compare-med command ensures the comparison of the MED variable for paths from neighbors in different autonomous systems.
E. The bgp deterministic-med and bgp always-compare-med commands are enabled by defult.
Answer: CD
Explanation:
Enabling the bgp deterministic-med command ensures the comparison of the MED variable when choosing routes advertised by different peers in the same autonomous system. Enabling the bgp always-compare-med command ensures the comparison of the MED for paths from neighbors in different autonomous systems.
Note. The bgp deterministic-med and bgp always-compare-med commands are not enabled by default. Also, the two commands are separate; enabling one does not automatically enable the other.
QUESTION 163
Which two frame types are correct when configuring T3 interfaces? (Choose two.)
A. M23
B. G.832
C. Extended Super Frame
D. C-bit parity
E. G.751
F. Super Frame
Answer: AD
Explanation:
http://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-2/interfaces/configuration/guide/hc42crsbook/hc42t3e3.html
QUESTION 164
Refer to the exhibit. An MPLS Layer 3 VPN service has been provisioned for a customer. What will be the ToS value at Site-B for the exceeded traffic that it is sent from Site-A with ToS 2?
A. 0
B. 2
C. 3
D. 4
E. No exceeded traffic will reach Site-B.
Answer: B
Explanation:
Only Uniform Tunnel mode will copy EXP value to TOS value, CE2 TOS value depend on MPLS Cloud (P & PE2) configurations which are not part of question.
According to default behavior & Tunnel Mode (Pipe & Short-Pipe) TOS will remain same when reached to CE2. So TOS Value 2 will remain same when reached CE2.
http://www.cisco.com/c/en/us/support/docs/multiprotocol-label-switching-mpls/mpls/47815-diffserv-tunnel.html
QUESTION 165
Refer to the exhibit. After the BGP TCP negotiation between RouterA and RouterB, what will be the value of the keepalive timer and the hold-down timer, respectively?
A. 3 seconds and 9 seconds
B. 60 seconds and 180 seconds
C. 10 seconds and 9 seconds
D. no value, because BGP negotiation will not be successful
E. 10 seconds and 10 seconds
F. 10 seconds and 30 seconds
G. 3 seconds and 30 seconds
H. 3 seconds and 10 seconds
Answer: D
QUESTION 166
An engineer has just configured IOS-XR with out-of-band MPP. Which are the three results that will occur? (Choose three.)
A. Management traffic to RP from all non-MPP interfaces is dropped
B. RP/DRP Ethernet Interfaces are not default out-of-band interfaces.
C. MPP configuration changes doesn’t affect active sessions established before the changes
D. Interfaces configured for out-of-band MPP are still part of global routing/forwarding
E. If MPP is disabled and a protocol is activated, all interfaces cannot pass traffic
F. LPTS will provide rate limiting
Answer: ACF
Explanation:
https://supportforums.cisco.com/document/93456/asr9000xr-local-packet-transport-services-lpts-copp
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