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Question 1
SR Linux Configuration and RoutingAsk AstroTutor
Which of the following is NOT one of the reasons why BGP is used as the routing protocol in the data center?
- A It is more efficient than link-state protocols like IS-IS and OSPF.
- B BGP neighbors automatically discover each other.
- C It is a well understood and mature routing protocol.
- D It supports both IPv4 and IPv6.
Question 2
Nokia DC Fabric solutionQuestion 3
SR Linux Configuration and RoutingQuestion 4
SR Linux Configuration and RoutingQuestion 5
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Topics covered:Nokia DC Fabric solutionSR Linux Configuration and RoutingSR Linux Logging, Monitoring, and Filtering
Log In / Sign UpWhich of the following statements about the data center’s leaf-spine topology (clos network) is FALSE?
- A Each leaf router is connected to all the spine routers in the cluster.
- B It provides a consistent path for east-west traffic.
- C It uses the spanning tree protocol to avoid forwarding loops.
- D It uses ECMP to distribute traffic across duplicate links.
Which of the following is NOT a function of Nokia’s SR Linux application manager?
- A It monitors the health of all applications.
- B It manages the SR Linux and customer-defined applications.
- C It reads the application’s configuration information and starts each application.
- D It translates the application’s YANG model into protobufs for the IDB.
Which of the following statements about the YANG model used in Nokia’s SR Linux is FALSE?
- A All configuration and state information is defined as a YANG model.
- B The YANG model uses a tree structure with “leafs” as the branches and “containers” as the data components.
- C The YANG model can be converted into other formats such as JSON or XML.
- D The YANG model provides a standardized way for applications to retrieve SR Linux configuration and state information.
Which of the following statements about SR Linux interfaces is FALSE?
- A Only one management interface is allowed.
- B Network interfaces are associated with physical ports on the linecards.
- C The loopback interface is a physical interface directly connected to another interface on the same chassis.
- D Layer 2 parameters such as MTU are configured at the SR Linux interface level while Layer 3 parameters are configured at the subinterface level.
Question 6
SR Linux Configuration and RoutingQuestion 7
SR Linux Configuration and RoutingQuestion 8
Nokia DC Fabric solutionQuestion 9
Nokia DC Fabric solutionQuestion 10
SR Linux Logging, Monitoring, and FilteringQuestion 11
SR Linux Configuration and RoutingQuestion 12
SR Linux Configuration and RoutingQuestion 13
SR Linux Configuration and RoutingQuestion 14
SR Linux Logging, Monitoring, and FilteringQuestion 15
SR Linux Configuration and RoutingQuestion 16
SR Linux Configuration and RoutingQuestion 17
Nokia DC Fabric solutionQuestion 18
SR Linux Logging, Monitoring, and FilteringQuestion 19
Nokia DC Fabric solutionQuestion 20
SR Linux Configuration and RoutingQuestion 21
SR Linux Configuration and RoutingQuestion 22
SR Linux Configuration and RoutingQuestion 23
SR Linux Configuration and RoutingQuestion 24
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Which of the following statements about configuration checkpoints in Nokia SR Linux is FALSE?
- A Checkpoint 0 is always the oldest checkpoint.
- B The current running configuration can be saved as a JSON-formatted checkpoint file.
- C The operator can revert to any existing checkpoint.
- D The operator can generate a new checkpoint when committing configuration changes.
Which of the following is NOT one of the characteristics of Nokia’s SR Linux?
- A It uses an unmodified Linux kernel that simplifies the use of third party applications.
- B It uses a modular, state-driven architecture that gives applications efficient access to system information.
- C It includes a NetOps development kit that supports the integration of third-party applications.
- D It uses mature and stable SNMP protocol to access the command line interface.
Which of the following statements about Nokia’s Fabric Services System is FALSE?
- A Data center fabric configuration is represented as the fabric intent in a declarative YAML format.
- B Digital sandbox provides notification of performance issues in the data center fabric.
- C Telemetry data is provided in a context that is relevant to the fabric intent.
- D Cloud-native design enables easy integration with the customer’s environment.
Which of the following statements about multi-homing in EVPN is FALSE?
- A Type 1 Ethernet Auto-Discovery (A-D) EVPN route is used to support EVPN multi-homing.
- B Type 4 Ethernet Segment (ES) EVPN route is used for designated forwarder (DF) election for an ES.
- C The ES identifier (ESI) uniquely identifies an ES and it is locally significant for a particular leaf.
- D The Ethernet Segment (ES) identifies a set of links that connects a host to one or more leafs.
Based on the exhibit output, what CLI command can be used to display the contents of “bgp-log” in Nokia’s SR Linux?
- A show system logging buffer bgp-log
- B show system logging file bgp-log
- C info system logging buffer bgp-log
- D info system logging file bgp-log
How are LLDP frames advertised between two Nokia SR Linux routers?
- A They are forwarded to the destination node based on the MAC VRF table.
- B They are periodically sent to a multicast MAC address on each interface.
- C They are periodically flooded to the broadcast MAC address on each interface.
- D They are routed to the destination node based on the IP VRF forwarding table.
Based on the exhibit output, which of the following is NOT the reason the user runs the “baseline diff” command?
- A User admin is not able to commit their changes.
- B Another user has committed changes.
- C User admin wants to check if there are differences between the current running config and their baseline datastore.
- D User admin notices that “!” appears in the CLI prompt.
Which of the following is NOT one of the user types supported in Nokia SR Linux?
- A SR Linux users
- B Regular Linux OS users
- C Container users
- D Remote users
Based on the exhibit output, which of the following statements is TRUE?
- A An ACL filter is configured to accept ICMP packets, which are then processed by the tcpdump-like utility.
- B capture-filter is configured to copy ICMP packets to the CPM where they are processed by the tcpdump-like utility.
- C A cpm-filter policer is configured to rate limit ICMP packets, which are then captured in a log file.
- D A cpm-filter is configured to accept ICMP packets, which are then captured in a log file.
Which of the following statements about Zero Touch Provisioning (ZTP) is FALSE?
- A The ZTP process downloads a provisioning script defined in the TLS profile.
- B The ZTP process is managed by the ZTP application in Nokia SR Linux.
- C The ZTP process relies on a DHCP server for an IP address.
- D ZTP allows a router to become operational in the network without any pre-provisioning.
Which of the following statements about a CPM-filter policer is FALSE?
- A Hierarchical policing of control plane traffic is supported.
- B The system-cpu-policer is hardware-based.
- C The system-cpu-policer acts on the aggregate traffic from all line cards.
- D CPM-filter entries can use both a distributed-policer and a system-cpu-policer.
How does Nokia’s Fabric Services System use a fabric intent to build the DC switch fabric?
- A It uses a YAML file that defines the intended configuration state of the DC fabric.
- B It uses a digital sandbox to connect workloads to the DC fabric.
- C It uses a digital sandbox to build the configuration files for the DC fabric.
- D It uses telemetry data to build the configuration files for the DC fabric.
Which of the following is NOT a valid logging source used in Nokia’s SR Linux?
- A Linux facility + priority
- B Console
- C SR Linux subsystem + priority
- D Syslog filter
Which of the following is NOT part of Day 2+ operations with Nokia’s Fabric Services System?
- A Monitor the data center fabric using model-driven telemetry.
- B Analyze the overall health of the data center fabric for proactive operations.
- C Use the digital sandbox to test and validate configuration changes and upgrades.
- D Use a fabric intent to build and validate design templates.
Which of the following statements about using BFD with BGP is FALSE?
- A It can help rapidly detect link failures.
- B The BFD endpoints agree on the send/receive rate of control packets.
- C BGP is notified if several BFD control packets are missed.
- D Using BFD can speed up the BGP advertisement interval.
A static route is configured in two steps in Nokia’s SR Linux. Which of the following items CANNOT be configured in the static-routes container?
- A blackhole
- B IPv4 destination prefix
- C Preference value
- D Next-hop group
When autoboot flag is set in grub.cfg, which of the following is NOT performed as part of the Zero Touch Provisioning (ZTP) autoboot process?
- A Uses the DHCP server to provide the IP address and default gateway
- B Uses the Web or FTP server to provide the RPM packages and any necessary images
- C Downloads and executes provisioning scripts
- D Uses Nokia’s Fabric Services System to deploy the digital sandbox automatically
Which of the following Nokia’s SR Linux ACLs is instantiated on all line cards to copy incoming packets to the CPM?
- A Capture-filter ACL
- B CPM-filter ACL
- C Ingress ACL
- D Egress ACL
Which of the following statements about Nokia’s SR Linux logging is FALSE?
- A SR Linux logs are handled using facility Iocal6 of the native Linux syslog utility.
- B SR Linux logs can be saved locally as an encrypted file.
- C SR Linux supports the use of filters to select log messages.
- D Logging parameter configuration is translated into the /etc/rsyslog.conf file.
