NOKIA SERVICE ROUTING ARCHITECT (SRA) Exam 4A0-D01 Questions V9.02 Nokia Service Routing Architect (SRA) Topics - Nokia Data Center Fabric Fundamentals Nokia 4A0-D01 Study Materials to Complete Your Exam Preparation 1.Which command is used to configure a sub-interface with VLAN tagging in SR Linux? A. set interface-vlan B. set interface C. set interface-subinterface D. configure interface-subinterface Answer: A Explanation: The command "set interface-vlan" is used to configure a sub-interface with VLAN tagging in SR Linux. 2.What is the benefit of using sub-interfaces in network configuration? A. Reduced network complexity B. Greater network security C. Increased network performance D. Enhanced flexibility and scalability Answer: D Explanation: Using sub-interfaces in network configuration provides enhanced flexibility and scalability by allowing for logical divisions within a physical interface. 3.How does the Nokia Fabric Services System contribute to network efficiency and reliability? A. By limiting network scalability B. By increasing network latency C. By decreasing security measures D. By reducing network complexity Answer: D Explanation: The Nokia Fabric Services System contributes to network efficiency and reliability by reducing network complexity. 4.How can administrators access and analyze log data in SR Linux? A. Through a web-based dashboard B. Through SNMP traps C. Through email notifications D. Through the CLI Answer: D Explanation: Administrators can access and analyze log data in SR Linux through the Command Nokia 4A0-D01 Study Materials to Complete Your Exam Preparation Line Interface (CLI). 5.Which of the following is a benefit of using logging and monitoring tools in SR Linux? A. All of the above B. Better troubleshooting capabilities C. Improved network performance D. Increased network security Answer: A Explanation: Using logging and monitoring tools in SR Linux provides benefits such as increased network security, improved network performance, and better troubleshooting capabilities. 6.What is the purpose of an IP-VRF network instance in a data center fabric? A. To provide Quality of Service for specific IP addresses B. To encrypt IP traffic for added security C. To improve network performance for specific IP services D. To isolate traffic at Layer 3 based on IP addresses Answer: D Explanation: An IP-VRF network instance is used to isolate and separate traffic at Layer 3 based on IP addresses. 7.What is a key benefit of configuring VXLAN-Based EVPN Overlay Networks in a data center environment? A. Faster network speeds B. Improved scalability C. Enhanced backup capabilities D. Increased security Answer: B Explanation: Improved scalability is a key benefit of configuring VXLAN-Based EVPN Overlay Networks in a data center environment. 8.What is the purpose of using monitoring and logging tools in SR Linux? A. To slow down network performance B. To automate network configuration C. To troubleshoot network issues and optimize performance Nokia 4A0-D01 Study Materials to Complete Your Exam Preparation D. To enhance network security Answer: C Explanation: The purpose of using monitoring and logging tools in SR Linux is to troubleshoot network issues, track performance, and optimize network functionality. 9.In BGP, what is the term used for the autonomous system to which a BGP router belongs? A. Route table B. ACL (Access Control List) C. ASN (Autonomous System Number) D. IP address Answer: C Explanation: ASN (Autonomous System Number) is the term used for the autonomous system to which a BGP router belongs. 10.What is the purpose of using gNMI to configure an SR Linux router? A. To monitor network traffic B. To configure network interfaces C. To update the routing table D. To push and pull configuration data programmatically Answer: D Explanation: gNMI (gRPC Network Management Interface) is used to push and pull configuration data programmatically for the SR Linux router. 11.Which command can be used to verify BGP neighbor relationships and routing information on a router? A. show bgp summary B. display bgp neighbor C. show ip bgp neighbors D. list neighbors bgp Answer: A Explanation: The 'show bgp summary' command can be used to verify BGP neighbor relationships and routing information on a router. 12.What role does the Fabric Manager play in the SR Linux architecture? Nokia 4A0-D01 Study Materials to Complete Your Exam Preparation A. Handling routing protocol innovations B. Monitoring and managing system health C. Managing the SDN fabric and orchestrating services D. Configuring network interfaces Answer: C Explanation: The Fabric Manager in the SR Linux architecture is responsible for managing the SDN fabric and orchestrating services. 13.What are some key features of the Nokia Fabric Services System that support the designing and deploying of a data center fabric? A. Network automation and analytics tools B. Advanced data encryption techniques C. Physical network hardening methods D. Virtual server migration capabilities Answer: A Explanation: The Nokia Fabric Services System provides network automation and analytics tools that aid in the designing and deploying of data center fabrics. 14.In what ways can you customize the user permissions and access levels in the SR Linux CLI? A. By customizing the login process with additional security measures B. By setting restrictions on certain command usage C. By implementing role-based access control for different user roles D. By creating user groups with specific permissions Answer: C Explanation: Customizing user permissions and access levels in the SR Linux CLI can be done through implementing role-based access control for different user roles. 15.Which interface uses gRPC protocol to transfer configuration and operational data between network elements? A. gNMI B. SSH C. Telnet D. JSON/RPC Answer: A Explanation: The gNMI interface uses gRPC protocol to transfer configuration and operational data Nokia 4A0-D01 Study Materials to Complete Your Exam Preparation between network elements. 16.When configuring network interfaces and sub-interfaces, what is the purpose of assigning an IP address to an interface? A. To enable the interface to communicate with other devices on the network B. To assign a unique identifier to the interface C. To disable the interface completely D. To define the speed and duplex of the physical interface Answer: A Explanation: Assigning an IP address to an interface enables the interface to communicate with other devices on the network. 17.What is the purpose of a MAC-VRF network instance in a data center fabric? A. To prioritize specific MAC addresses for network access B. To isolate traffic at Layer 2 based on MAC addresses C. To optimize network performance based on MAC addresses D. To provide encryption for MAC addresses Answer: B Explanation: A MAC-VRF network instance is used to isolate and separate traffic at Layer 2 based on MAC addresses. 18.When configuring a MAC-VRF network instance, what must be unique in each VRF? A. Subnet masks B. IP addresses C. MAC addresses D. VLAN IDs Answer: C Explanation: When configuring a MAC-VRF network instance, the MAC addresses must be unique in each VRF. 19.What is the purpose of EVPN (Ethernet Virtual Private Network) in VXLAN overlays? A. To enhance security by encrypting data traffic B. To prioritize certain types of network traffic C. To dynamically learn MAC addresses and IP prefixes for efficient routing Nokia 4A0-D01 Study Materials to Complete Your Exam Preparation D. To monitor network performance in real-time Answer: C Explanation: EVPN in VXLAN overlays allows for the dynamic learning of MAC addresses and IP prefixes for efficient routing. 20.In SR Linux, what is the primary difference between a network interface and a sub- interface? A. Sub-interfaces can only be configured with VLAN tagging, while network interfaces cannot B. Network interfaces can only support Layer 2 configurations, while sub-interfaces can support Layer 3 configurations C. Sub-interfaces are virtual interfaces that can be configured on a physical interface D. Network interfaces are used for connecting to the local network, while sub- interfaces are used for connecting to remote networks Answer: C Explanation: The primary difference is that sub-interfaces are virtual interfaces that can be configured on a physical interface to allow for segmentation of traffic. 21.In BGP, which attribute is used to influence the traffic path selection? A. Weight B. AS Path C. MED D. Local Preference Answer: D Explanation: Local Preference is used in BGP to influence the traffic path selection within an autonomous system. 22.What is the purpose of configuring a network interface or sub-interface? A. To establish a physical connection to the network B. To improve network security C. To increase the bandwidth of the network D. To create logical divisions within a physical network interface Answer: D Explanation: Network interfaces and sub-interfaces are configured to create logical divisions within a physical network interface, allowing for better network segmentation and management. Nokia 4A0-D01 Study Materials to Complete Your Exam Preparation 23.Which of the following best describes the function of MAC-VRF network instances? A. They isolate traffic based on Media Access Control (MAC) addresses B. They provide secure access control based on MAC address filtering C. They enhance network performance by prioritizing MAC addresses D. They optimize network pathways for faster data transmission Answer: A Explanation: MAC-VRF network instances are designed to isolate network traffic based on Media Access Control (MAC) addresses. 24.Which protocol is commonly used in VXLAN-based EVPN overlay networks for control plane communication? A. RIP B. BGP C. VLAN D. OSPF Answer: B Explanation: BGP (Border Gateway Protocol) is commonly used in VXLAN-based EVPN overlay networks for control plane communication. 25.Which attribute in BGP is used to influence the path selection process between multiple routes to the same destination? A. Community B. Local Preference C. Weight D. MED (Multi-Exit Discriminator) Answer: B Explanation: Local Preference is used in BGP to influence the path selection process between multiple routes to the same destination. 26.What is the purpose of customizing the SR Linux CLI? A. to match specific user preferences B. to increase security C. to make it easier to use Nokia 4A0-D01 Study Materials to Complete Your Exam Preparation D. to improve functionality Answer: A Explanation: Customizing the SR Linux CLI allows users to tailor the interface to their specific preferences. 27.What is the purpose of the Management Plane in SR Linux architecture? A. Handles data traffic B. Implements dynamic protocols as plugins C. Processes traffic flows D. Manages overall system operations and configurations Answer: D Explanation: The Management Plane in SR Linux architecture is responsible for managing overall system operations and configurations. 28.How can IP-VRF and MAC-VRF network instances help improve network security in a data center fabric? A. By prioritizing specific applications over others B. By providing encryption for all network traffic C. By isolating and segregating traffic based on IP and MAC addresses D. By automatically blocking suspicious traffic Answer: C Explanation: IP-VRF and MAC-VRF network instances improve network security by isolating and segregating traffic based on IP and MAC addresses. 29.How can you configure an IP-VRF network instance in Nokia's SR Linux? A. By setting up virtual routing tables in the network device B. By assigning VLANs to specific IP-VRF instances C. By enabling IP-VRF through the web interface D. Using the VRF configuration command in the CLI Answer: D Explanation: To configure an IP-VRF network instance in Nokia's SR Linux, you can use the VRF configuration command in the CLI. 30.What are some key characteristics of Nokia's SR Linux and the Nokia Fabric Services System? Nokia 4A0-D01 Study Materials to Complete Your Exam Preparation A. Seamless integration with third-party applications B. Advanced security features C. Simplified network automation capabilities D. Enhanced scalability and performance Answer: D Explanation: Nokia's SR Linux and the Nokia Fabric Services System offer enhanced scalability and performance to meet the demands of modern data center networks. 31.What is the purpose of assigning an IP address to a network interface? A. To improve network performance B. To encrypt data transmission on the network C. To uniquely identify the network interface in the network D. To allocate additional resources to the network interface Answer: C Explanation: Assigning an IP address to a network interface helps uniquely identify and communicate with that interface in the network. 32.When designing and deploying a data center fabric, what are some benefits of utilizing the Nokia Fabric Services System? A. Enhanced server cooling mechanisms B. Reduced software licensing costs C. Increased power consumption D. Improved network scalability and flexibility Answer: D Explanation: One benefit of using the Nokia Fabric Services System is the improved network scalability and flexibility it offers in data center fabric design and deployment. 33.What are some advanced features that can be customized in the SR Linux CLI? A. Integration with third-party applications for enhanced functionality B. Integration of real-time monitoring tools for network performance analysis C. Implementation of automated scripts for specific tasks D. Customization of command output formatting and display Answer: C Explanation: Some advanced features that can be customized in the SR Linux CLI include the implementation of automated scripts for specific tasks. Nokia 4A0-D01 Study Materials to Complete Your Exam Preparation 34.Why would customizing the CLI in SR Linux be beneficial for network administrators? A. To streamline repetitive tasks B. To eliminate the need for manual configuration of network devices C. To enhance clarity and readability of command output D. To improve overall system performance Answer: A Explanation: Customizing the CLI in SR Linux can help streamline repetitive tasks for network administrators, saving time and effort. 35.What sets Nokia's SR Linux apart from traditional network operating systems? A. Seamless integration with Nokia Fabric Services System B. All of the above C. Built-in telemetry and analytics capabilities D. Support for cloud-native applications Answer: B Explanation: Nokia's SR Linux stands out from traditional network operating systems by offering support for cloud-native applications, built-in telemetry and analytics capabilities, and seamless integration with the Nokia Fabric Services System. 36.Which architecture in SR Linux is responsible for processing traffic flows based on routing information and forwarding tables? A. Management Plane B. Control Plane C. Data Plane D. Service Plane Answer: C Explanation: The Data Plane in SR Linux is responsible for processing traffic flows based on routing information and forwarding tables. 37.What is a common use case for configuring both IP-VRF and MAC-VRF instances in a network environment? A. Enabling multi-tenancy in a cloud infrastructure B. Enhancing network performance through traffic isolation C. Optimizing network traffic for specific applications D. Implementing secure VLAN segmentation for different departments Nokia 4A0-D01 Study Materials to Complete Your Exam Preparation Answer: A Explanation: A common use case for configuring both IP-VRF and MAC-VRF instances is to enable multi-tenancy in a cloud infrastructure, allowing for secure and isolated network environments for different tenants. 38.What is the purpose of configuring command history in the SR Linux CLI? A. To store previously entered commands for reference B. To improve system performance C. To track user activity D. To simplify command input Answer: A Explanation: Configuring command history in the SR Linux CLI allows users to store and reference previously entered commands. 39.What role does the VXLAN tunnel endpoint (VTEP) play in a VXLAN-based EVPN overlay network? A. It prioritizes network traffic based on VLAN tags B. It establishes BGP connections with other VTEPs C. It encrypts data packets for secure transmission D. It encapsulates and de-encapsulates traffic between VXLAN tunnels and physical networks Answer: D Explanation: The VXLAN tunnel endpoint (VTEP) is responsible for encapsulating and de- encapsulating traffic between VXLAN tunnels and physical networks in a VXLAN- based EVPN overlay network. 40.How can you configure syslog in SR Linux to send log messages to a remote server? A. Configure a syslog server IP address in the system settings B. Install a separate syslog application on the SR Linux device C. Set up a syslog profile with the server IP address and other configuration D. Enable remote logging in the network interfaces Answer: C Explanation: To configure syslog in SR Linux, you need to set up a syslog profile with the remote server's IP address and other necessary configuration settings. Nokia 4A0-D01 Study Materials to Complete Your Exam Preparation 41.What is the purpose of configuring logging levels in SR Linux? A. To increase the security of log data B. To provide additional context for log messages C. To reduce the amount of log data generated D. To prioritize certain logs over others Answer: D Explanation: Configuring logging levels in SR Linux allows administrators to prioritize certain logs over others based on their importance. 42.Which protocol is commonly used in VXLAN-Based EVPN Overlay Networks for control plane operations? A. RIP B. EIGRP C. OSPF D. BGP Answer: D Explanation: BGP (Border Gateway Protocol) is commonly used in VXLAN-Based EVPN Overlay Networks for control plane operations. 43.What are the key components of the SR Linux architecture? A. Fabric Manager B. Data Plane C. Management Plane D. Control Plane Answer: D Explanation: The SR Linux architecture consists of a Control Plane, Data Plane, Management Plane, and Fabric Manager. 44.What is one logging tool commonly used in SR Linux for monitoring and troubleshooting network issues? A. Syslog B. SNMP C. Nagios D. Wireshark Answer: A Explanation: Nokia 4A0-D01 Study Materials to Complete Your Exam Preparation Syslog is a standard logging tool used in SR Linux for capturing and storing system logs for analysis. 45.What are the key benefits of using the Nokia Fabric Services System? A. Improved network speed B. Simplified network management C. Enhanced security measures D. Increased server capacity Answer: B Explanation: The key benefits of using the Nokia Fabric Services System include simplified network management. 46.Which of the following routing protocols is commonly used for inter-domain routing in IPv4 networks? A. RIP B. BGP C. OSPF D. EIGRP Answer: B Explanation: BGP (Border Gateway Protocol) is commonly used for inter-domain routing in IPv4 networks. 47.What is the purpose of the Data Plane in the SR Linux architecture? A. Configuring network interfaces B. Handling routing protocol innovations C. Processing and forwarding packets D. Managing system logs Answer: C Explanation: The Data Plane in the SR Linux architecture is responsible for processing and forwarding packets. 48.What command is used to configure a network interface in SR Linux? A. interface eth0 B. set interface C. configure terminal D. ip address Nokia 4A0-D01 Study Materials to Complete Your Exam Preparation Answer: B Explanation: In SR Linux, the 'set interface' command is used to configure network interfaces. 49.Which architecture in SR Linux is in charge of exchange and calculation of routing information to build forwarding tables? A. Data Plane B. Management Plane C. Service Plane D. Control Plane Answer: D Explanation: The Control Plane in SR Linux is in charge of exchange and calculation of routing information to build forwarding tables. 50.What is the purpose of configuring BGP peering sessions? A. To configure VLANs in a network B. To keep track of network interfaces and sub-interfaces C. To exchange routing information with directly connected neighbors D. To encrypt data traffic in a network Answer: C Explanation: Configuring BGP peering sessions allows routers to exchange routing information with directly connected neighbors. 51.What is the purpose of using the next-hop attribute in BGP? A. To determine the administrative distance of a route B. To control the advertisement of routes within an autonomous system C. To specify the IP address of the next-hop router for a specific route D. To indicate the prefix length of a route Answer: C Explanation: The next-hop attribute in BGP is used to specify the IP address of the next-hop router for a specific route. 52.Why is the use of Layer 3 VXLAN-Based EVPN Overlay Networks beneficial for data center architectures? A. Improved network security B. Reduced network latency Nokia 4A0-D01 Study Materials to Complete Your Exam Preparation C. Scalability for multi-tenancy D. Simplified troubleshooting Answer: C Explanation: The use of Layer 3 VXLAN-Based EVPN Overlay Networks provides scalability for multi-tenancy in data center architectures. 53.What is the benefit of customizing command shortcuts in the SR Linux CLI? A. Increased security B. Improved performance C. Reduced typing errors D. Enhanced logging capabilities Answer: C Explanation: Customizing command shortcuts in the SR Linux CLI can help reduce typing errors and increase efficiency. 54.What is the purpose of IP-VRF and MAC-VRF network instances? A. To enable virtualization of network resources B. To separate network traffic based on IP addresses and MAC addresses C. To optimize network performance by isolating traffic D. To provide enhanced security through virtual routing and forwarding Answer: B Explanation: IP-VRF and MAC-VRF network instances are used to separate network traffic based on IP addresses and MAC addresses. 55.Which component of the SR Linux architecture is focused on monitoring and managing the health and status of the system? A. Management Plane B. Data Plane C. Control Plane D. Fabric Manager Answer: A Explanation: The Management Plane in the SR Linux architecture is focused on monitoring and managing the health and status of the system. 56.What tool can be used in SR Linux for logging and monitoring network activity? Nokia 4A0-D01 Study Materials to Complete Your Exam Preparation A. Syslog B. NetFlow C. SNMP D. IPFIX Answer: A Explanation: Syslog is used in SR Linux for logging and monitoring network activity. 57.How does the Nokia Fabric Services System enhance network operations in data center environments? A. By enabling seamless network automation B. By offering granular control over network resources C. All of the above D. By providing advanced visibility and troubleshooting tools Answer: C Explanation: The Nokia Fabric Services System enhances network operations in data center environments by enabling seamless network automation, providing advanced visibility and troubleshooting tools, and offering granular control over network resources. 58.Which interface provides a programmatic way to push and pull configuration data in JSON format? A. Telnet B. SSH C. JSON/RPC D. gNMI Answer: C Explanation: The JSON/RPC interface provides a programmatic way to push and pull configuration data in JSON format for the SR Linux router. 59.Which feature of Nokia's SR Linux platform allows for simplified network management and configuration? A. Container-based architecture B. Integration with Nokia Fabric Services System C. Support for high availability and scalability D. Enhanced network automation capabilities Answer: D Explanation: Enhanced network automation capabilities in SR Linux platform enable simplified Nokia 4A0-D01 Study Materials to Complete Your Exam Preparation network management and configuration. 60.What are some benefits of utilizing Nokia's SR Linux and the Nokia Fabric Services System in data center fabric design? A. Faster deployment of new applications and services B. Improved network agility and flexibility C. Enhanced security and compliance features D. Simplified provisioning and management of network resources Answer: A Explanation: By utilizing Nokia's SR Linux and the Nokia Fabric Services System, data center fabric design can benefit from faster deployment of new applications and services, improving overall operational efficiency. 61.When configuring Layer 2 VXLAN-based EVPN overlay networks, what is a common method for achieving optimal network redundancy? A. Using static routing tables B. Implementing Equal-Cost Multi-Path (ECMP) routing C. Setting up loopback interfaces on network devices D. Enabling broadcast addressing Answer: B Explanation: Implementing Equal-Cost Multi-Path (ECMP) routing is a common method for achieving optimal network redundancy in Layer 2 VXLAN-based EVPN overlay networks. 62.When configuring an IP-VRF network instance, what must be unique in each VRF? A. VLAN IDs B. MAC addresses C. IP addresses D. Subnet masks Answer: C Explanation: When configuring an IP-VRF network instance, the IP addresses must be unique in each VRF. 63.What are some ways in which you can customize the SR Linux CLI? A. By adjusting the color scheme for better visibility B. By configuring specific command shortcuts Nokia 4A0-D01 Study Materials to Complete Your Exam Preparation C. By changing the prompt display D. By creating custom aliases for commands Answer: D Explanation: Customizing the SR Linux CLI includes the ability to create custom aliases for commonly used commands. 64.What is an important consideration when configuring Layer 2 VXLAN-Based EVPN Overlay Networks for data center deployments? A. Support for multiple VLANs B. Limited scalability options C. Avoiding redundancy D. Use of static routing only Answer: A Explanation: Support for multiple VLANs is an important consideration when configuring Layer 2 VXLAN-Based EVPN Overlay Networks for data center deployments. 65.In which type of environments is the Nokia Fabric Services System most commonly used? A. Healthcare facilities B. Data centers C. Industrial manufacturing plants D. Retail stores Answer: B Explanation: The Nokia Fabric Services System is most commonly used in data center environments. 66.When configuring BGP for IPv6 networks, what is the equivalent of the IPv4 network command used in IPv4 BGP? A. ipv6 bgp command B. address-family ipv6 command C. network ipv6 command D. redistribute ipv6 command Answer: B Explanation: In BGP for IPv6 networks, the 'address-family ipv6' command is the equivalent of the IPv4 network command used in IPv4 BGP. Nokia 4A0-D01 Study Materials to Complete Your Exam Preparation 67.How can you configure a sub-interface on a physical network interface? A. By using the 'sub-interface' command B. By assigning a VLAN tag to the physical interface C. By creating a new physical network interface D. By disabling the physical interface and enabling a new sub-interface Answer: B Explanation: A sub-interface on a physical network interface can be configured by assigning a VLAN tag to the physical interface. 68.How does the integration with Nokia Fabric Services System enhance the capabilities of SR Linux platform? A. Provides advanced security features B. Enhances network visibility and monitoring C. Enables seamless network orchestration D. Improves scalability and performance Answer: C Explanation: The integration with Nokia Fabric Services System enables seamless network orchestration, enhancing the capabilities of the SR Linux platform. 69.Which component of the SR Linux architecture is responsible for handling routing protocol innovations, policy enforcement, and telemetry? A. Management Plane B. Control Plane C. Data Plane D. Fabric Manager Answer: B Explanation: The Control Plane in SR Linux is responsible for handling routing protocol innovations, policy enforcement, and telemetry. 70.What is the primary purpose of the Nokia Fabric Services System in designing and deploying a data center fabric? A. To automate software development processes B. To enhance physical security measures within the data center C. To provide simplified network provisioning and management D. To optimize server performance and storage capacity Answer: C