Act now and download your Cisco 642-883 test today! Do not waste time for the worthless Cisco 642-883 tutorials. Download Refresh Cisco Deploying Cisco Service Provider Network Routing (SPROUTE) exam with real questions and answers and begin to learn Cisco 642-883 with a classic professional.
Q51. An engineer is configuring an eBGP peering session. What is the default TTL value?
A. 1
B. 64
C. 127
D. 255
Answer: A
Q52. An engineer is working on routers within AS 100. Which regular expression can be used in an AS path access list to match locally originated routes from AS 100?
A. ^100$
B. ^$
C. _100$
D. ^[0-9]*$
Answer: B
Q53. Refer to the exhibit.
R1 is advertising subnets 1.1.1.X/32 via eBGP. XR4.must accept only the first seven subnets in its BGP table. Which configuration must occur on XR2 to meet these parameters?
A. route-policy INBOUND if destination in SUBNETS then pass endif router bgp 100 neighbor 10.10.14.1 address-family ipv4 unicast route-policy INBOUND in
B. route-policy INBOUND.if destination in FILTER then pass endif router bgp 100 neighbor 10.10.14.1 address-family ipv4 unicast route-policy INBOUND in
C. router bgp 100 neighbor 10.10.14.1 address-family ipv4 unicast route-policy FILTER in
D. router bgp 100 neighbor 10.10.14.1 address-family ipv4 unicast route-policy SUBNETS in
Answer: B
Q54. Which two statements regarding OSPFv2 or OSPFv3 authentication are correct? (Choose two.)
A. OSPFv2 supports MD5 authentication.
B. OSPFv2 supports MD5 or SHA authentication.
C. OSPFv2 relies on the native security stack that uses IPsec.
D. OSPFv3 supports MD5 authentication.
E. OSPFv3 supports MD5 or SHA authentication.
F. OSPFv3 relies on the native security stack that uses IPsec.
Answer: A,F
Q55. Which BGP attribute is a set of generic tags that can be used to signal various routing policies between BGP routers?
A. AS path
B. MED
C. weight
D. communities
E. route tags
Answer: D
Explanation:
http://www.cisco.com/en/US/tech/tk365/technologies_configuration_example09186a00801
475b2.shtml
Q56. A network engineer wants to set the local preference to 100 for the specific BGP community sets of 100:1, 101:1, and 102:1..Which option can the engineer use to implement this through RPL, where the BGP community set list is made by the name of lowpri-communities?
A. route-policy ch-pref if community matches lowpri-communities then set local-preference 100 endif end-policy
B. route-policy ch-pref if community eq lowpri-communities.then set local-preference 100 endif end-policy
C. route-policy ch-pref if community matches-any lowpri-communities.then set local-preference 100 endif end-policy
D. route-policy ch-pref if community neq lowpri-communities.then set local-preference 100 endif end-policy
Answer: C
Q57. BGP peerings can be secured using which protection mechanism?
A. SHA authentication
B. MD5 authentication
C. SSH
D. SSL
E. AAA
F. digital certificates
Answer: B
Explanation:
http://www.cisco.com/en/US/tech/tk365/technologies_configuration_example09186a0080b 52107.shtml
Q58. RAG DROP
Answer:
Q59. Which two methods implement high availability in OSPF on Cisco IOS XR? (Choose two.)
A. NSF
B. NSR
C. BFD
D. fast hellos
E. sham-links
Answer: A,B
Q60. How many total OSPF virtual links are configured in this multiarea OSPF network which supports both OSPFv2 and OSPFv3 for IPv4 and IPv6 routing?
A. 1
B. 2
C. 3
D. 4
Answer: B
Explanation:
#Show running-config | include virtual – check how many router having “virtual “ entry
To know more about the 642-883, click here.