Q1. A network engineer needs to connect two core switches that use Gigabit Ethernet interfaces in an MPLS backbone and that are separated by a distance of 60 km. Which Cisco GBIC achieves this goal?
A. Cisco 1000BASE-T GBIC
B. Cisco 1000BASE-SX GBIC
C. Cisco 1000BASE-LX/LH GBIC
D. Cisco 1000BASE-ZX GBIC
Answer: D
Explanation:
http://www.cisco.com/web/partners/downloads/765/tools/quickreference/gbic.pdf
Q2. Refer to the exhibit. After the BGP TCP negotiation between RouterA and RouterB, what will be the value of the keep alive 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: A
Q3. On a Cisco ASR 1000 Series, which hardware component is used to build and distribute the forwarding plane information to all line cards?
A. RP
B. ESP
C. SIP
D. PRP
Answer: B
Q4. Refer to the exhibit. A network engineer must configure BFD for IS-IS between R1 and R2. In case the primary link fails, the convergence time should be less than a second.
Which two IOS commands are required to meet this requirement? (Choose two.)
A. isis bfd
B. bfd minimum-interval 250
C. bfd interval 250 min_rx 250 multiplier 3
D. bfd multiplier 3
E. bfd interval 250 min_rx 250 multiplier 4
F. bfd fast-detect ipv4
Answer: C,F
Explanation: http://www.cisco.com/c/en/us/td/docs/routers/xr12000/software/xr12k_r4-3/routing/command/reference/b_routing_cr43xxr12k/b_routing_cr43xxr12k_chapter_010.ht ml#wp3058619742
Q5. The following MPP configuration is applied on RA router: RP/0/RSP0/CPU0:RA#sh running-config control-plane
control-plane
management-plane
inband
interface TenGigE 0/0/0/0
allow SSH peer
address ipv4 5.0.0.0/8
Which two pieces of information are correct in regards to management traffic on RA router? (Choose two)
A. SNMP traps going out on TenGigE 0/0/0/0 interface are dropped.
B. SNMP polling coming through TenGigE 0/0/0/0 interface are dropped.
C. Telnet connections coming through MgmtEth0/RSP0/CPU0/0 interface are accepted.
D. SSH connections coming through TenGigE 0/0/0/0 interface from 5.5.5.5 host are accepted.
E. TACACS traffic going through TenGigE 0/0/0/0 interface are dropped.
Answer: B,D
Q6. When troubleshooting a DoS attack, a support engineer finds a huge number of packets that are destined to one of the core routers interface IP address. By the time the packets reach this core router, they have a TTL of 0. Based on Cisco platform running IOS 15.3S, which technique is most effective in resolving this problem
A. Configure LPTS.
B. Configure an ACL on the core router interface.
C. Configure CoPP on the core router.
D. Configure policing on PE routers.
E. Configure a receive ACL on the core router.
Answer: C
Q7. In a Layer 2 VPN service, which is the default behavior of an EVC-based platform with regards to VLAN manipulation?
A. keeps the VLAN tag of the incoming frame
B. attaches two VLAN tags to the incoming frame
C. removes the VLAN tag from the incoming frame
D. removes all the VLAN tags from the incoming frame
E. sets the VLAN tag of the incoming frame
Answer: A
Explanation: http://www.cisco.com/c/en/us/support/docs/routers/asr-9000-series-aggregation-services-routers/116453-technote-ios-xr-l2vpn-00.html#anc7
Q8. Refer to the exhibit. An SP core is running MPLS with OSPF as the IGP used for Loopback propagation. LDP Synchronization is enabled per the given configuration. What will the traffic flow behavior be after a temporary outage event on PE1 Eth0/0?
A. Permanently through PE1 -> P2 -> PE4 due to lowest path metric.
B. Initially through PE1 -> P1 -> PE4, then a few seconds later, it will be over PE1 -> P2 -> PE4.
C. Permanently through PE1 -> P1 -> PE4 due to lowest path metric.
D. Initially through PE1 -> P2 -> PE4, then a few seconds later, it will be over PE1 -> P1 -> PE4
Answer: B
Q9. A network engineer is responsible for implementing a solution with Cisco IOS XR Software that insures continuous forwarding during a control plane failure. Which two technologies should the engineer consider? (Choose two.)
A. TE FRR
B. IP FRR
C. graceful restart
D. BFD
E. NSR
Answer: C,E
Explanation: http://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-3/mpls/configuration/guide/b_mpls_cg43xcrs/b_mpls_cg43crs_chapter_01.html#task_1129
Q10. Which are the four main functions of the Cisco IOS XR System Manager? (Choose four)
A. performs system monitoring
B. is the main IOS XR component for device drivers and software installation management
C. starts, restarts, and terminates processes in response to user configuration or RP failover
D. is responsible for the message-passing "bus" for interprocess communication
E. acts as a central repository for all process-related information
F. performs health checks
G. initiates disaster recovery based on the process health
H. invokes a dumper to collect a core dump when a process terminates abnormally
Answer: C,E,G,H