644-906 - Implementing and Maintaining Cisco Technologies Using IOS XR - (IMTXR)
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Which two commands will allow you to check if interface Bundle-Ether1 has ACL Ethernet_In applied to its ingress? (Choose two.)
show running-config interface Bundle-Ether 1
show ipv4 interface Bundle-Ether 1
How many stages are there in the Cisco CRS-1 switch fabric?
Which user privilege level is needed to create a nonowner SDR?
Which of the following configurations adds a community to routes that are matched on AS criteria?
route-policy policy1 if as-path in set1 then set community (356:1000) additive endif end-policy
Which command in Cisco IOS XR Software is the recommended way to configure an IPv4 address on an interface?
ipv4 address 10.0.0.1/8
In order to determine the hardware and firmware revision of a linecard, what is the correct command that should be invoked?
RP/0/RP0/CPU0:CRS-MC(admin)#show diag details
Which two of the following statements regarding task-based authorization are true? (Choose two.)
The user group concept in Cisco IOS XR Software relates to a group of users with common characteristics.
In addition to the predefined task groups, Cisco IOS XR Software provides the ability to custom create task groups consisting of individual tasks.
Which of the following functions can be configured in the Administration Config mode? (Choose two)
Which command configures IPv4 uRPF strict mode on an interface?
ipv4 verify unicast source reachable-via rx
Which answer best summarizes the difference between p and px images, hfr-mini-p.vm-4.1.1 and hfr-mini-px.vm-4.1.1, respectively?
P images can only support Power PC hardware, while px images can support both Power PC and Intel hardware in the same chassis.
Which command should be used to view only the running configuration of OSPF in Cisco IOS XR Software?
show run router ospf
Which component is shared between different SDRs?
switch fabric card (SFC)
Which command will correctly deactivate asr9k-mpls-p-4.1.0?
RP/0/RSP0/CPU0:P1 (admin)#install deactivate disk0:asr9k-mpls-p-4.1.0
On a Cisco CRS, which statement is correct about what happens to the MSC if the associated PLIM is absent?
The MSC does not boot up.
What is the effect of configuring "logging disable"?
It will stop the router from displaying logs on a console session.
A network administrator needs to configure a default IPv4 route for a Cisco CRS-1 router. Which Cisco IOS XR command will accomplish this task?
What are the two prerequisites for enabling multicast-only fast reroute (MoFRR) in a network? (Choose two.)
There must be an Equal-Cost Multipath (ECMP) topology.
There must be a valid reverse path back to the multicast source.
In which mode can you check the power usage of a chassis?
in admin mode
What is the correct Cisco IOS XR CLI command to assign a cost of 20 to interface TenGigE 0/1/0/1 for Area 0?
config mode, router ospf 1, area 0, interface tengige 0/1/0/1, cost 20
What is the correct procedure to associate a VRF to a static route?
specify the VRF under "router static" in configuration mode
In Cisco IOS XR Software, Label Distribution Protocol (LDP) would be configured on POS 0/0/0/0 using which commands?
mpls ldp interface pos 0/0/0/0
Which statement is false?
A Cisco IOS XR device can be directly connected to an atomic clock and provide a stratum 1 service.
In which two ways do you set the maximum number of Telnet sessions to 10? (Choose two.)
telnet vrf default ipv4 server max-servers 10
telnet ipv4 server max-servers 10
Where is the LPTS policer applied?
ingress line card
Which three configuration steps are mandatory in order to enable NetFlow sampling on Cisco IOS XR Software? (Choose three.)
interface netflow configuration
What are the two commands to show all log entries except BGP or configuration-related ones? (Choose two.)
show log | excl BGP | excl CONFIG
show log | excl "BGP|CONFIG"
Which Cisco IOS XR command is the most useful for checking if traffic is being sent for a specific multicast group?
show mfib route 22.214.171.124
The Cisco CRS 16-Slot Line Card Chassis Site Planning Guide suggests having 48 inches of clearance behind the chassis. What would definitely happen to the system if there were only 28 inches of clearance behind the Cisco CRS 16-Slot Line Card Chassis?
The fan tray could not be exchanged if one failed.
Which uRPF mode specifies that the source address of the packet is checked against the FIB to make sure that it is being received on the interface that is selected as the best path to this source address?
Which two of the following are correct commands to activate the PIE file <hfr-mgbl-p.pie-4.0.1>? (Choose two.)
install add tftp://172.20.165.36/hfr-mgbl-p.pie-4.0.1 activate
install activate disk0:hfr-mgbl-p.pie-4.0.1
Which Cisco IOS XR command would you use to view the actual traffic statistics of packets that are exiting the router in the different configured QoS queues on TenGigE 0/0/0/0 in Cisco IOS XR Software?
show policy-map interface TenGigE 0/0/0/0
Which command will show the IP address of a Cisco Discovery Protocol neighbor?
show cdp entry
Which configuration command will set EXEC shell timeout on the console to 300 seconds?
line console exec-timeout 5 0
How would MPLS Label Distribution Protocol, Graceful Restart be configured on TenGigE 0/0/0/1?
mpls ldp graceful restart interface Ten 0/0/0/1
What is the size of the packets that traverse the Cisco CRS-3 switch fabric?
not applicable, as the Cisco CRS-3 uses a fixed cell in the switch fabric
Which optional PIE do you need to install if you want to use XML for the management and configuration of Cisco IOS XR Software?
Which Cisco IOS XR command sequence will load a specific configuration?
What is the main function of LPTS?
maintain the Internal Forwarding Information Base (IFIB)
What is the effect of a mandatory process, if it keeps restarting?
the router will reload
How many planes are there in the Cisco CRS-3 switch fabric?
What is the correct command to copy the contents of the harddisk:/showtech folder to an FTP server?
copy /recurse harddisk:/showtech location 0/RSP0/CPU0 ftp:
Which is-is router interface configuration command will configure the authentication password for IS-IS Hello (IIH) messages without actually sending the password with the IIH over the network?
hello-password hmac-md5 clear secretkey
What is the cell size of the cells that traverse the switch fabric on the Cisco CRS-3?
In Cisco IOS XR platforms, IP multicast packets are replicated on which two components? (Choose two.)
egress line card
What is the maximum long-term normal operating temperature of the Cisco CRS-1, ASR 9000 Series Routers, and XR 12000 Series Routers?
What is the correct Cisco IOS XR command to configure an autonomous system number 1000 for BGP and to support IPv4, IPv6, and unicast routing?
router bgp 1000 address-family ipv4 unicast ! address-family ipv6 unicast ! !
What are the three potential use cases of NetFlow in an actual network deployment? (Choose three.)
identifying the traffic source and destination for optimizing peering and transit links
providing the network telemetry for identifying and mitigating DDoS attacks
providing a means for traffic accounting and billing for customers
How many stages of switching are there on a Cisco ASR 9000 Series Router switch fabric?
Which configuration is required in order for chassis management (for example, power and fan statistics) to be polled using SNMP?
snmp-server community <community> SystemOwner
If the fpd.pie is installed but not activated and FPD Auto-Upgrade is enabled, which statement is true?
The upgrade hw-module fpd all location all command will not work.