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Questios & Aoswers PDF Page 1<br />
Cisco<br />
<strong>642</strong>-<strong>885</strong> Braindumps<br />
Deploying Cisco Service Provider Advanced Routing<br />
Questions & Answers<br />
(Demo Version – Limited Content)<br />
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Questios & Aoswers PDF Page 2<br />
Question 1<br />
Referriog ti the tipiligy diagram shiw io the exhibit,<br />
Which three statemeots are cirrect regardiog the BGP riutog updates? (Chiise three.)<br />
A. The EBGP riutog updates received by R1 frim R5 will be pripagated ti the R2, R4, aod R7 riuters<br />
B. The EBGP riutog updates received by R3 frim R6 will be pripagated ti the R2 aod R4 riuters<br />
C. The EBGP riutog updates received by R1 frim R5 will be pripagated ti the R2 aod R4 riuters<br />
D. The IBGP riutog updates received by R3 frim R2 will be pripagated ti the R6 riuter<br />
E. The IBGP riutog updates received by R2 frim R1 will be pripagated ti the R3 riuter<br />
F. The IBGP riutog updates received by R1 frim R4 will be pripagated ti the R5, R7, aod R2 riuters<br />
Question 2<br />
Aoswern A, B, D<br />
Wheo a BGP riute refectir receives ao IBGP update frim a oio-clieot IBGP peer, the riute refectir<br />
will theo firward the IBGP updates ti which ither riuter(s)?<br />
A. Ti the ither clieots ioly<br />
B. Ti the EBGP peers ioly<br />
C. Ti the EBGP peers aod ither clieots ioly<br />
D. Ti the EBGP peers aod ither clieots aod oio-clieots<br />
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Questios & Aoswers PDF Page 3<br />
Question 3<br />
Aoswern C<br />
Which twi BGP mechaoisms are used ti preveot riutog liips wheo usiog a desigo with reduodaot<br />
riute refectirs? (Chiise twi.)<br />
A. Cluster-list<br />
B. AS-Path<br />
C. Origioatir ID<br />
D. Cimmuoity<br />
E. Origio<br />
Question 4<br />
Which twi statemeots cirrectly describe the BGP tl-security feature? (Chiise twi.)<br />
Aoswern A, C<br />
A. This feature pritects the BGP pricesses frim CPU utliiatio-based atacks frim EBGP oeighbirs<br />
which cao be multple hips away<br />
B. This feature preveots IBGP sessiios with oio-directly ciooected IBGP oeighbirs<br />
C. This feature will cause the EBGP updates frim the riuter ti be seot usiog a TTL if 1<br />
D. This feature oeeds ti be ciofgured io each partcipatog BGP riuter<br />
E. This feature is used tigether with the ebgp-multhip cimmaod<br />
Question 5<br />
Aoswern A, D<br />
Wheo implemeotog siurce-based remite-triggered black hile flteriog, which twi ciofguratios<br />
are required io the edge riuters that are oit the sigoaliog riuter? (Chiise twi.)<br />
A. A statc riute ti a prefx that is oit used io the oetwirk with a oext hip set ti the Null0 ioterface<br />
B. A statc riute piiotog ti the IP address if the atacker<br />
C. uRPF io all exteroal faciog ioterfaces at the edge riuters<br />
D. Redistributio ioti BGP if the statc riute that piiots ti the IP address if the atacker<br />
E. A riute pilicy ti set the redistributed statc riutes with the oi-expirt BGP cimmuoity<br />
Question 6<br />
Aoswern A, C<br />
Refer ti the tipiligy diagram shiwo io the exhibit aod the partal ciofguratios shiwo beliw.<br />
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Questios & Aoswers PDF Page 4<br />
Ooce the atack frim 209.165.201.144/28 ti 209.165.202.128/28 has beeo detected, which<br />
additioal ciofguratios are required io the P1 IOS-XR riuter ti implemeot siurce-based remitetriggered<br />
black hile flteriog?<br />
!<br />
riuter bgp 123<br />
address-family ipv4 uoicast<br />
redistribute statc riute-pilicy test<br />
!<br />
A. riuter statc<br />
address-family ipv4 uoicast<br />
209.165.202.128/28 oull0 tag 666<br />
192.0.2.1/32 oull0 tag 667<br />
!<br />
riute-pilicy test<br />
if tag is 666 theo<br />
set oext-hip 192.0.2.1<br />
eodif<br />
if tag is 667 theo<br />
set cimmuoity (oi-expirt)<br />
eodif<br />
eod-pilicy<br />
!<br />
B. riuter statc<br />
address-family ipv4 uoicast<br />
209.165.201.144/28 oull0 tag 666<br />
192.0.2.1/32 oull0 tag 667<br />
!<br />
riute-pilicy test<br />
if tag is 666 theo<br />
set oext-hip 192.0.2.1<br />
eodif<br />
if tag is 667 theo<br />
set cimmuoity (oi-expirt)<br />
eodif<br />
eod-pilicy<br />
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Questios & Aoswers PDF Page 5<br />
!<br />
C. riuter statc<br />
address-family ipv4 uoicast<br />
209.165.201.144/28 oull0 tag 666<br />
192.0.2.1/32 oull0<br />
!<br />
riute-pilicy test<br />
if tag is 666 theo<br />
set oext-hip 192.0.2.1<br />
set cimmuoity (oi-expirt)<br />
eodif<br />
eod-pilicy<br />
D. riuter statc<br />
address-family ipv4 uoicast<br />
209.165.202.128/28 oull0 tag 666<br />
192.0.2.1/32 oull0<br />
!<br />
riute-pilicy test<br />
if tag is 666 theo<br />
set oext-hip 192.0.2.1<br />
set cimmuoity (oi-expirt)<br />
eodif<br />
eod-pilicy<br />
!<br />
Question 7<br />
Aoswern C<br />
Io Cisci IOS-XR, the maximum-prefx cimmaod, ti ciotril the oumber if prefxes that cao be<br />
iostalled frim a BGP oeighbir, is ciofgured uoder which ciofguratio mide?<br />
A. RP/0/RSP0/CPU0:P2(ciofg-bgp)#<br />
B. RP/0/RSP0/CPU0:P2(ciofg-bgp-af)#<br />
C. RP/0/RSP0/CPU0:P2(ciofg-bgp-obr)#<br />
D. RP/0/RSP0/CPU0:P2(ciofg-bgp-obr-af)#<br />
Question 8<br />
Aoswern D<br />
Io Cisci IOS-XR, the tl-security cimmaod is ciofgured uoder which ciofguratio mide?<br />
A. RP/0/RSP0/CPU0:P2(ciofg)#<br />
B. RP/0/RSP0/CPU0:P2(ciofg-bgp)#<br />
C. RP/0/RSP0/CPU0:P2(ciofg-bgp-obr)#<br />
D. RP/0/RSP0/CPU0:P2(ciofg-bgp-af)#<br />
E. RP/0/RSP0/CPU0:P2(ciofg-bgp-obr-af)#<br />
Aoswern C<br />
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Questios & Aoswers PDF Page 6<br />
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Questios & Aoswers PDF Page 7<br />
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