CISCO 500-230 Cisco Service Provider Routing Field Engineer Free Practice Test — 30 Questions

Question 1

In a service provider network, a network engineer is tasked with optimizing the routing protocol used for inter-domain routing. The engineer is considering implementing BGP (Border Gateway Protocol) and needs to understand the implications of route selection based on various attributes. If the engineer has two routes to the same destination, one with a higher local preference and the other with a lower AS path length, which route should be preferred according to BGP\'s route selection process?

Accepted Answer

The route with the higher local preference

Question 2

In a telecommunications environment, a service provider is evaluating the deployment of various types of services to meet the diverse needs of its customers. The provider is considering three main types of service models: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). If the provider aims to offer a comprehensive solution that includes not only the infrastructure but also the development platform and the end-user applications, which type of service model should be prioritized for implementation to ensure a seamless integration of all components?

Accepted Answer

IaaS

Question 3

A telecommunications company is experiencing a significant increase in customer complaints regarding service outages. The management team decides to implement a Customer Relationship Management (CRM) system to enhance their support capabilities. As part of this initiative, they need to analyze customer feedback data to identify patterns and root causes of the outages. Which approach should the company prioritize to effectively utilize the CRM system for improving customer support and relationship management?

Accepted Answer

Implementing predictive analytics to forecast potential service disruptions based on historical data trends.

Question 4

A service provider is evaluating the effectiveness of its customer engagement strategy. They have implemented a new customer feedback system that collects data on customer satisfaction, response times, and service quality. After analyzing the data, they find that customer satisfaction scores have increased by 15% over the last quarter, while response times have improved from an average of 10 minutes to 5 minutes. However, they also notice that the number of service tickets has increased by 20% during the same period. Given this scenario, which of the following conclusions can be drawn about the service provider\'s customer engagement strategy?

Accepted Answer

The increase in customer satisfaction indicates that the engagement strategy is effective, despite the rise in service tickets.

Question 5

In a service provider network, you are tasked with configuring BGP for a new customer connection. The customer has multiple prefixes that need to be advertised, and you need to ensure that the best path is selected based on BGP attributes. Given the following BGP attributes: Local Preference, AS Path, and MED, in what order should these attributes be considered when determining the best path for a prefix?

Accepted Answer

Local Preference, AS Path, MED

Question 6

In a corporate environment, a network engineer is tasked with implementing a secure communication channel between two branch offices using a Virtual Private Network (VPN). The engineer must choose between two protocols: IPsec and SSL/TLS. Given the requirements for confidentiality, integrity, and authentication, as well as the need for compatibility with various devices and ease of deployment, which protocol would be the most suitable choice for establishing a secure site-to-site connection?

Accepted Answer

IPsec

Question 7

In a service provider network, a network engineer is tasked with evaluating the performance of a newly deployed MPLS (Multiprotocol Label Switching) backbone. The engineer measures the round-trip time (RTT) for packets sent from a client in New York to a server in Los Angeles and finds that the average RTT is 120 ms. Additionally, the engineer observes that the packet loss rate is 2%. Given these metrics, the engineer needs to calculate the effective throughput of the network, assuming the maximum bandwidth of the link is 1 Gbps. How would the engineer best estimate the effective throughput in Mbps, considering the impact of both RTT and packet loss?

Accepted Answer

980 Mbps

Question 8

In a corporate environment, a network engineer is tasked with implementing a secure communication channel between two branch offices using a Virtual Private Network (VPN). The engineer must choose between two types of VPN protocols: IPsec and SSL/TLS. Given the requirements for confidentiality, integrity, and authentication, which protocol should the engineer select to ensure that the data transmitted over the internet is secure, while also considering the ease of deployment and compatibility with existing web applications?

Accepted Answer

IPsec

Question 9

In a service provider network, a network engineer is tasked with implementing a security policy that ensures the confidentiality, integrity, and availability of customer data while also adhering to industry regulations such as GDPR and HIPAA. The engineer decides to use a combination of encryption, access control lists (ACLs), and intrusion detection systems (IDS). Which of the following strategies best aligns with the principles of security in this context?

Accepted Answer

Implement end-to-end encryption for data in transit and at rest, utilize role-based access control (RBAC) for user permissions, and deploy an IDS to monitor for unauthorized access attempts.

Question 10

In a service provider network, a network engineer is tasked with designing a scalable architecture that can efficiently handle increasing data traffic while ensuring high availability and redundancy. The engineer considers implementing a Multi-Protocol Label Switching (MPLS) framework. Which of the following design principles should the engineer prioritize to achieve optimal performance and reliability in this scenario?

Accepted Answer

Implementing a hierarchical network design that separates the core, distribution, and access layers to enhance scalability and manageability.

Question 11

In a service provider environment, a network engineer is tasked with documenting the performance metrics of a newly deployed routing protocol across multiple sites. The engineer collects data on latency, packet loss, and throughput over a period of one month. The average latency recorded is 50 ms, with a standard deviation of 10 ms. The packet loss percentage is consistently at 2%, and the average throughput is measured at 100 Mbps. To ensure comprehensive reporting, the engineer needs to present this data in a way that highlights trends and anomalies. Which approach would best facilitate effective documentation and reporting of these performance metrics?

Accepted Answer

Create a detailed report that includes graphical representations such as line charts for latency and throughput, along with a summary of the packet loss data, and provide a comparative analysis against previous performance benchmarks.

Question 12

A network engineer is tasked with designing a subnetting scheme for a company that has multiple departments, each requiring different numbers of IP addresses. The engineering department needs 50 IP addresses, the HR department requires 20, and the sales department needs 10. The engineer decides to use Variable Length Subnet Masking (VLSM) to optimize the IP address allocation. If the engineer starts with a base network of 192.168.1.0/24, what would be the appropriate subnet masks for each department, and how many usable IP addresses will remain after allocating the required addresses?

Accepted Answer

Engineering: /26, HR: /27, Sales: /28, 6 usable IPs remaining

Question 13

A network engineer is tasked with designing a subnetting scheme for a corporate network that requires at least 500 usable IP addresses for a department. The engineer decides to use a Class C network with a default subnet mask of 255.255.255.0. What subnet mask should the engineer apply to meet the requirement, and how many usable IP addresses will be available in the chosen subnet?

Accepted Answer

255.255.255.128 (126 usable IPs)

Question 14

In a service provider network, you are tasked with implementing a Quality of Service (QoS) policy to prioritize voice traffic over video and data traffic. The network has a total bandwidth of 1 Gbps, and you need to allocate bandwidth based on the following requirements: voice traffic should receive 40% of the total bandwidth, video traffic should receive 30%, and data traffic should receive the remaining bandwidth. If the average voice packet size is 100 bytes, video packet size is 500 bytes, and data packet size is 1500 bytes, how many packets per second can be transmitted for each type of traffic, assuming no overhead and that the network operates at full capacity?

Accepted Answer

Voice: 250,000 packets/s; Video: 60,000 packets/s; Data: 533 packets/s

Question 15

In a network where multiple BGP routes are available to reach the same destination, a network engineer is tasked with determining the best route based on the BGP route selection process. Given the following attributes for three different routes to the destination 192.0.2.0/24:

Accepted Answer

oute 1: Local Preference = 200, AS Path Length = 3, Origin Type = IGP

Question 16

In a service provider network, a router is configured to use OSPF as its routing protocol. The router has three interfaces, each connected to different subnets: 192.168.1.0/24, 192.168.2.0/24, and 192.168.3.0/24. The OSPF area is configured as Area 0. If the router receives an OSPF hello packet from a neighboring router with a priority of 100, and the local router has a priority of 50, what will be the outcome regarding the designated router (DR) election for the segment connecting these two routers?

Accepted Answer

The neighboring router will become the designated router (DR).

Question 17

In a service provider network, a router is configured to use OSPF as its routing protocol. The router has three interfaces, each connected to different subnets: 192.168.1.0/24, 192.168.2.0/24, and 192.168.3.0/24. The OSPF area is configured as Area 0. If the router receives an OSPF hello packet from a neighboring router with a priority of 100, and the local router has a priority of 50, what will be the outcome regarding the designated router (DR) election for the segment connecting these two routers?

Accepted Answer

The neighboring router will become the designated router (DR).

Question 18

A multinational corporation is implementing a new data processing system that will handle personal data of customers across various jurisdictions. The system must comply with the General Data Protection Regulation (GDPR) in the European Union and the California Consumer Privacy Act (CCPA) in the United States. If the corporation decides to process personal data of EU citizens, which of the following actions must be prioritized to ensure compliance with both regulations, particularly focusing on data subject rights and data protection principles?

Accepted Answer

Implementing a clear and accessible privacy notice that outlines the purposes of data processing, the legal basis for processing, and the rights of data subjects under both GDPR and CCPA.

Question 19

In a service provider network design, a network engineer is tasked with optimizing the routing architecture to enhance performance and scalability. The current design uses a single-tier architecture with a limited number of routers, leading to increased latency and potential bottlenecks during peak traffic hours. The engineer considers transitioning to a multi-tier architecture. What are the primary benefits of implementing a multi-tier architecture in this scenario?

Accepted Answer

Improved scalability and reduced latency through hierarchical routing

Question 20

A service provider is experiencing latency issues in their network due to suboptimal routing paths. They decide to implement a performance optimization strategy that involves adjusting the routing metrics to ensure that traffic takes the most efficient paths. If the current routing metric for a specific path is 20 and the service provider wants to reduce it by 25%, what will be the new routing metric for that path? Additionally, if the service provider has multiple paths with metrics of 15, 25, and 30, which path will now be the most efficient after the adjustment?

Accepted Answer

15

Question 21

In a scenario where a service provider is transitioning from IPv4 to IPv6, they decide to implement a dual-stack approach to facilitate communication between both protocols. During this transition, they encounter a situation where a client device is only capable of IPv4 communication. The service provider needs to ensure that this device can still access IPv6 resources. Which mechanism would best enable this communication without requiring the client to upgrade its protocol stack?

Accepted Answer

NAT64

Question 22

A network engineer is tasked with designing a subnetting scheme for a company that has been allocated the IP address block 192.168.1.0/24. The company requires at least 6 subnets to accommodate different departments, with each subnet needing to support a minimum of 30 hosts. What subnet mask should the engineer use to meet these requirements, and what will be the range of valid host addresses for the first subnet?

Accepted Answer

255.255.255.224 (Subnet mask: /27; Valid host range: 192.168.1.1 - 192.168.1.30)

Question 23

A network engineer is tasked with designing an IPv6 addressing scheme for a large organization that has multiple departments, each requiring a distinct subnet. The organization has been allocated the IPv6 prefix 2001:0db8:abcd:0010::/64. If the engineer decides to allocate /68 subnets to each department, how many subnets can be created, and what would be the first subnet address for the Marketing department?

Accepted Answer

16 subnets; 2001:0db8:abcd:0010:0000:0000:0000:0000

Question 24

In a service provider network utilizing MPLS, a network engineer is tasked with configuring Label Distribution Protocol (LDP) to ensure efficient label distribution across multiple routers. The engineer needs to determine the correct configuration for establishing LDP sessions between two routers, Router A and Router B, which are directly connected. Given that Router A has an IP address of 192.168.1.1 and Router B has an IP address of 192.168.1.2, what is the most appropriate method for Router A to establish an LDP session with Router B?

Accepted Answer

Configure Router A to use the router ID of Router B for LDP session establishment.

Question 25

In a corporate network, a security engineer is tasked with implementing a secure communication protocol for sensitive data transmission between remote offices. The engineer considers using a combination of protocols to ensure confidentiality, integrity, and authentication. Which combination of protocols would best achieve these security objectives while minimizing overhead and maintaining performance?

Accepted Answer

IPsec with IKEv2 for key exchange and AES for encryption

Question 26

A network engineer is tasked with designing a subnetting scheme for a corporate network that requires at least 50 hosts per subnet. The organization has been allocated the IP address block of 192.168.1.0/24. What subnet mask should the engineer use to accommodate the required number of hosts while minimizing wasted IP addresses?

Accepted Answer

255.255.255.192

Question 27

A company is planning to implement a new network design to support a growing number of remote employees. They need to ensure that their network can handle increased traffic while maintaining security and performance. The design must include considerations for Quality of Service (QoS), Virtual Private Network (VPN) configurations, and redundancy. Given these requirements, which design approach would best meet the company\'s needs?

Accepted Answer

Implement a hierarchical network design with distinct layers for core, distribution, and access, incorporating QoS policies and VPNs at the distribution layer while ensuring redundancy through link aggregation and failover protocols.

Question 28

A network engineer is tasked with designing an IPv6 addressing scheme for a large organization that has multiple departments, each requiring its own subnet. The organization has been allocated the IPv6 prefix 2001:0db8:abcd:0010::/64. The engineer decides to allocate /80 subnets to each department. How many subnets can the engineer create for the departments, and what is the range of addresses available for the first subnet?

Accepted Answer

256 subnets; 2001:0db8:abcd:0010:0000:0000:0000:0000 to 2001:0db8:abcd:0010:00ff:ffff:ffff:ffff

Question 29

A service provider is experiencing latency issues in their network due to high traffic loads during peak hours. They are considering implementing Quality of Service (QoS) policies to prioritize critical applications. If they allocate 70% of the bandwidth to high-priority traffic and 30% to low-priority traffic, how would you calculate the effective bandwidth available for high-priority traffic if the total available bandwidth is 1 Gbps? Additionally, what considerations should be taken into account when configuring these QoS policies to ensure optimal performance?

Accepted Answer

700 Mbps, and consider the impact of traffic shaping and congestion management.

Question 30

In a collaborative project involving multiple teams across different geographical locations, a project manager is tasked with ensuring effective communication and collaboration among team members. The project involves the integration of various technologies and requires input from both technical and non-technical stakeholders. What is the most effective strategy for the project manager to foster a collaborative environment and ensure that all voices are heard?

Accepted Answer

Implement regular video conferencing sessions that include all stakeholders to discuss progress and challenges, while also utilizing collaborative tools for documentation and feedback.

CISCO 500-230 Cisco Service Provider Routing Field Engineer Free Practice Test — 30 Questions

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