4A0-D01 Practice Exam Questions and Answers

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.

A.  

Linux facility + priority

B.  

Console

C.  

SR Linux subsystem + priority

D.  

Syslog filter

A.  

SR Linux logs are handled using facility local6 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.

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.

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.  

ICMP 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.

A.  

They are forwarded to the destination node based on the MAC VRF table.

B.  

They are forwarded to the destination node based on the MAC VRF table. (Duplicate of A)

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.

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.

A.  

The MAC address 00:25:BA:00:00:10 is learnt on more than one interface.

B.  

The MAC re-learning rate has exceeded the threshold within the specified time frame.

C.  

Interface ethernet-1/10 is configured with the MAC address 00:25:BA:00:00:10.

D.  

Mac-duplication detection is enabled in mac-vrf-1.

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.

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.