Nokia 4A0-D01 Real 2026 Braindumps Mock Exam Dumps
4A0-D01 Exam Questions | Real 4A0-D01 Practice Dumps
Nokia 4A0-D01 Exam Syllabus Topics:
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NEW QUESTION # 15
Which of the following statements about configuration checkpoints in Nokia SR Linux is FALSE?
- A. Checkpoint 0 is always the oldest checkpoint.
- B. The operator can generate a new checkpoint when committing configuration changes.
- C. The current running configuration can be saved as a JSON-formatted checkpoint file.
- D. The operator can revert to any existing checkpoint.
Answer: A
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 # 16
Examine the exhibit. Which of the following statements is TRUE?
- A. A recursive lookup is performed to resolve 10.2.1.0 to use 10.1.1.0.
- B. A recursive lookup is performed to resolve 10.1.1.0 to use 10.2.1.0.
- C. The next-hop selected for this route will be based on the preference value configured for each next-hop.
- D. The next-hop group for this static route is configured with two next-hops.
Answer: D
Explanation:
The static route shows two next-hop IP addresses (10.1.1.0 and 10.2.1.0) listed, indicating that a next-hop group with multiple next-hops is configured for load balancing or redundancy.
NEW QUESTION # 17
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 # 18
Which of the following is NOT part of Day 2+ operations with Nokia's Fabric Services System?
- A. Use a fabric intent to build and validate design templates.
- B. Use the digital sandbox to test and validate configuration changes and upgrades.
- C. Monitor the data center fabric using model-driven telemetry.
- D. Analyze the overall health of the data center fabric for proactive operations.
Answer: A
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 # 19
Which of the following is NOT one of the characteristics of Nokia's SR Linux?
- A. It uses mature and stable SNMP protocol to access the command line interface.
- B. It uses a modular, state-driven architecture that gives applications efficient access to system information.
- C. It includes a NetOgs development kit that supports the integration of third-party applications.
- D. It uses an unmodified Linux kernel that simplifies the use of third party applications.
Answer: A
Explanation:
Nokia's SR Linux does not rely on the SNMP protocol for accessing the command line interface; instead, it uses modern, programmable interfaces aligned with its modular architecture.
NEW QUESTION # 20
Which of the following is NOT one of the user types supported in Nokia SR Linux?
- A. SR Linux users
- B. Remote users
- C. Container users
- D. Regular Linux OS users
Answer: B
Explanation:
Nokia SR Linux supports SR Linux users, regular Linux OS users, and container users. "Remote users" is not a defined user type within SR Linux user management.
NEW QUESTION # 21
Which of the following statements about a MAC-VRF is FALSE?
- A. Multiple devices can be connected to the same IP subnet using a MAC-VRF.
- B. Packets received in a MAC-VRF are forwarded based on destination IP address.
- C. A MAC-VRF is a Layer 2 network instance.
- D. Bridge table entries contain an exit interface for each destination address.
Answer: B
Explanation:
In a MAC-VRF, packets are forwarded based on Layer 2 information such as destination MAC addresses, not on destination IP addresses.
NEW QUESTION # 22
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 supports the use of filters to select log messages.
- D. SR Linux logs can be saved locally as an encrypted file.
Answer: D
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 # 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 multi-homing in EVPN is FALSE?
- A. Type 1 Ethernet Auto-Discovery (A-D) EVPN route is used to support EVPN multi-homing.
- B. The ES identifier (ESI) uniquely identifies an ES and it is locally significant for a particular leaf.
- C. The Ethernet Segment (ES) identifies a set of links that connects a host to one or more leafs.
- D. Type 4 Ethernet Segment (ES) EVPN route is used for designated forwarder (DF) election for an ES.
Answer: B
Explanation:
The Ethernet Segment Identifier (ESI) uniquely identifies an Ethernet Segment (ES) globally across the EVPN domain, not just locally for a particular leaf.
NEW QUESTION # 25
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 is a well understood and mature routing protocol.
- C. It supports both IPv4 and IPv6.
- 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 # 26
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. Next-hop group
- B. blackhole
- C. Preference value
- D. IPv4 destination prefix
Answer: B
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 # 27
Which of the following is NOT a valid logging source used in Nokia's SR Linux?
- A. SR Linux subsystem + priority
- B. Linux facility + priority
- C. Syslog filter
- D. Console
Answer: C
Explanation:
"Syslog filter" is not a logging source; it is a mechanism used to filter log messages. Valid logging sources in SR Linux include Linux facility + priority, console, and SR Linux subsystem + priority.
NEW QUESTION # 28
Which of the following statements about next-hop groups is TRUE?
- A. The next-hop for a next-hop-group must be a local IP address.
- B. Multiple static routes can use the same next-hop-group.
- C. CMP destination unreachable message is always sent when blackhole is specified in the next-hop-group.
- D. A next-hop-group can only specify one next-hop for forwarding
Answer: B
Explanation:
Multiple static routes can share the same next-hop group, enabling efficient reuse of next-hop definitions for load balancing or redundancy.
NEW QUESTION # 29
Which of the following statements about the MAC table shown in the exhibit output is FALSE?
- A. Mac-duplication detection is enabled in mac-vrf-1.
- B. The MAC address 00:25: BA:00:00:10 is learnt on more than one interface.
- C. The MAC re-learning rate has exceeded the threshold within the specified time frame.
- D. [interface ethernet-1/10 is configured with the MAC address 00:25:BA:00:00:10.
Answer: B
Explanation:
The MAC address 00:25:BA:00:00:10 is listed as "duplicate," but it appears only once associated with interface ethernet-1/10. Therefore, it is not learned on more than one interface.
NEW QUESTION # 30
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