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NEW QUESTION # 21
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. IPv4 destination prefix
- B. Preference value
- C. Next-hop group
- D. blackhole
Answer: D
Explanation:
The static-routes container in Nokia SR Linux does not support configuring a blackhole route directly; it is used to configure destination prefixes, preference values, and next-hop groups for static routing.
NEW QUESTION # 22
Which of the following statements about the YANG model used in Nokia's SR Linux is FALSE?
- A. The YANG model provides a standardized way for applications to retrieve SR Linux configuration and state information.
- 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. All configuration and state information is defined as a YANG model.
Answer: B
Explanation:
In YANG models, "leafs" are the data nodes (not branches), and "containers" group related data nodes. The statement incorrectly reverses their roles by calling leafs branches and containers data components.
NEW QUESTION # 23
Based on the exhibit output, which of the following statements is TRUE?
- A. A cpm-filter policer is configured to rate limit ICMP packets, which are then captured in a log file.
- 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 is configured to accept ICMP packets, which are then captured in a log file.
- D. An ACL filter is configured to accept ICMP packets, which are then processed by the tcpdump-like utility.
Answer: B
Explanation:
The exhibit shows ICMP packets being captured and displayed by a tcpdump-like utility, which indicates that a capture-filter is configured to copy ICMP packets to the Control Plane Manager (CPM) where they are processed and monitored.
NEW QUESTION # 24
Which of the following statements about the data center's leaf-spine topology (clos network) is FALSE?
- A. It provides a consistent path for east-west traffic.
- B. It uses the spanning tree protocol to avoid forwarding loops.
- C. It uses ECMP to distribute traffic across duplicate links.
- D. Each leaf router is connected to all the spine routers in the cluster.
Answer: B
Explanation:
The leaf-spine (Clos) topology does not use the spanning tree protocol because it relies on equal-cost multipath (ECMP) routing to prevent loops and efficiently utilize all available paths. Spanning tree is typically avoided in modern data center fabrics to enable full bandwidth utilization.
NEW QUESTION # 25
Based on the exhibit output, what CLI command can be used to display the contents of "bgp-log" in Nokia's SR Linux?
- A. info system logging buffer bgp-log
- B. info system logging file bgp-log
- C. show system logging file bgp-log
- D. show system logging buffer bgp-log
Answer: C
Explanation:
The "bgp-log" is defined as a log file in the configuration, so the correct command to display its contents is show system logging file bgp-log.
NEW QUESTION # 26
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. Use a fabric intent to build and validate design templates.
- C. Use the digital sandbox to test and validate configuration changes and upgrades.
- D. Analyze the overall health of the data center fabric for proactive operations.
Answer: B
Explanation:
Using a fabric intent to build and validate design templates is primarily a Day 0 or Day 1 activity focused on initial fabric deployment and design, not part of Day 2+ operational tasks like monitoring, health analysis, or change validation.
NEW QUESTION # 27
Which of the following statements about IP-VRFs in Nokia's SR Linux is FALSE?
- A. Packets in an IP-VRF are forwarded based on the destination IP address.
- B. The router maintains a distinct route table for each IP-VRF instance.
- C. An IP-VRF is a Layer 3 network instance.
- D. Multiple servers can be connected to the same subnet in an IP-VRF.
Answer: D
Explanation:
Multiple servers connected to the same subnet typically reside within the same Layer 2 domain or MAC-VRF. IP-VRFs operate at Layer 3 and segment routing and forwarding by separate routing tables, so multiple servers on the same subnet are not a function of IP-VRF.
NEW QUESTION # 28
Which of the following statements about the IRB subinterface configuration in Nokia SR Linux is FALSE?
- A. An IP address is configured under the IRB's subinterface.
- B. An IRB subinterface is configured in an IP-VRF network instance.
- C. One IRB subinterface is configured for each interface within a MAC-VRF network instance.
- D. One IRB subinterface is configured in a MAC-VRF network instance.
Answer: C
Explanation:
In Nokia SR Linux, IRB subinterfaces are configured one per MAC-VRF network instance, not one for each interface within that instance. Multiple IRB subinterfaces per interface are not typical.
NEW QUESTION # 29
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. It supports both IPv4 and IPv6.
- C. It is a well understood and mature routing protocol.
- D. BGP neighbors automatically discover each other.
Answer: A
Explanation:
BGP is not chosen because it is more efficient than link-state protocols; in fact, link-state protocols like IS-IS and OSPF generally provide faster convergence and more efficient route calculation. BGP is used in data centers mainly because it is mature, well understood, supports both IPv4 and IPv6, and offers flexible policy control.
NEW QUESTION # 30
Which of the following statements about the VXLAN tunneling in data centers is FALSE?
- A. VLXAN tunneling is used to provide Layer 2 connectivity between workloads over a common underlay network.
- B. Each VXLAN tunnel endpoint is automatically assigned with a unique VNI value.
- C. EVPN routes are exchanged between VXLAN tunnel endpoints.
- D. VXLAN tunnel endpoints can be on hypervisors, leaf routers, or datacenter gateways.
Answer: B
Explanation:
VXLAN tunnel endpoints (VTEPs) are configured with VNI (VXLAN Network Identifier) values, but these VNIs are not automatically assigned; they must be explicitly configured to define Layer 2 segments.
NEW QUESTION # 31
Which of the following statements about configuration checkpoints in Nokia SR Linux is FALSE?
- A. The operator can revert to any existing checkpoint.
- B. Checkpoint 0 is always the oldest checkpoint.
- C. The current running configuration can be saved as a JSON-formatted checkpoint file.
- D. The operator can generate a new checkpoint when committing configuration changes.
Answer: B
Explanation:
In Nokia SR Linux, checkpoint numbering is dynamic. The system assigns the lowest available number to the most recent checkpoint, not necessarily "0." When the number of saved checkpoints exceeds the configured maximum, the oldest checkpoint is removed, and the remaining checkpoints are renumbered accordingly. Therefore, checkpoint "0" is not always the oldest checkpoint.
NEW QUESTION # 32
Which of the following statements about the CLI modes in Nokia's SR Linux is FALSE?
- A. Users can switch from one mode to another using the enter command.
- B. The show mode uses pre-defined reports to display operational information.
- C. The state mode displays the current configuration and operational information.
- D. The running mode is used to make configuration changes.
Answer: A
Explanation:
In Nokia SR Linux, users switch between CLI modes using specific commands like configure or exit, not an enter command. The enter command is not used for mode switching.
NEW QUESTION # 33
Which of the following statements about Zero Touch Provisioning (ZTP) is FALSE?
- A. The ZTP process relies on a DHCP server for an IP address.
- B. The ZTP process downloads a provisioning script defined in the TLS profile.
- C. ZTP allows a router to become operational in the network without any pre-provisioning.
- D. The ZTP process is managed by the ZTP application in Nokia SR Linux.
Answer: B
Explanation:
The ZTP process downloads a provisioning script typically from a defined URL or server, not from a TLS profile. The TLS profile is used for securing communications but does not define the provisioning script location.
NEW QUESTION # 34
Which of the following statements about Nokia's SR Linux logging is FALSE?
- A. Logging parameter configuration is translated into the /etc/rsyslog.conf file.
- B. SR Linux logs are handled using facility Iocal6 of the native Linux syslog utility.
- C. SR Linux logs can be saved locally as an encrypted file.
- D. SR Linux supports the use of filters to select log messages.
Answer: C
Explanation:
Nokia SR Linux does not natively support saving logs locally as encrypted files. Logs are managed using standard Linux syslog facilities and can be filtered, but encryption of local log files is not a built-in feature.
NEW QUESTION # 35
Which of the following statements about using BFD with BGP is FALSE?
- A. The BFD endpoints agree on the send/receive rate of control packets.
- B. Using BFD can speed up the BGP advertisement interval.
- C. BGP is notified if several BFD control packets are missed.
- D. It can help rapidly detect link failures.
Answer: B
Explanation:
BFD helps detect link failures rapidly and notifies BGP to trigger route updates quickly, but it does not speed up the BGP advertisement interval itself. BGP advertisement intervals are controlled by BGP timers, not by BFD.
NEW QUESTION # 36
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