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CISCO 010-151 Supporting Cisco Data Center Networking Devices Quiz 03 covered:
CISCO 010-151 Supporting Cisco Data Center Networking Devices
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Question 1 of 30
1. Question
Which command is useful for diagnosing routing issues by showing the path packets take to a destination?
Correct
Explanation:
The traceroute command is useful for diagnosing routing issues by showing the path packets take to a destination, including each hop along the route and the time taken for each hop. The ping command tests connectivity, netstat displays network connections, and nslookup queries DNS servers.Incorrect
Explanation:
The traceroute command is useful for diagnosing routing issues by showing the path packets take to a destination, including each hop along the route and the time taken for each hop. The ping command tests connectivity, netstat displays network connections, and nslookup queries DNS servers. -
Question 2 of 30
2. Question
Why is it important to monitor humidity levels in a data center?
Correct
Explanation:
Monitoring humidity levels in a data center is important to prevent electrostatic discharge (ESD), which can damage sensitive electronic components. Proper humidity levels help maintain the right balance to avoid ESD and condensation. It does not directly impact data security, network speed, or lighting conditions.Incorrect
Explanation:
Monitoring humidity levels in a data center is important to prevent electrostatic discharge (ESD), which can damage sensitive electronic components. Proper humidity levels help maintain the right balance to avoid ESD and condensation. It does not directly impact data security, network speed, or lighting conditions. -
Question 3 of 30
3. Question
What is the primary purpose of subnetting in IP networking?
Correct
Explanation:
The primary purpose of subnetting is to divide a larger network into smaller, more manageable segments, which helps improve network performance, security, and organization. Subnetting does not increase the IP address space, improve speed directly, or encrypt traffic.Incorrect
Explanation:
The primary purpose of subnetting is to divide a larger network into smaller, more manageable segments, which helps improve network performance, security, and organization. Subnetting does not increase the IP address space, improve speed directly, or encrypt traffic. -
Question 4 of 30
4. Question
In Cisco UCS, what is the function of a Fabric Interconnect?
Correct
Explanation:
A Fabric Interconnect in Cisco UCS acts as the main networking component, connecting servers to the network and providing centralized management of networking, storage, and server resources. It does not manage storage devices, virtual machines, or serve as a power supply.Incorrect
Explanation:
A Fabric Interconnect in Cisco UCS acts as the main networking component, connecting servers to the network and providing centralized management of networking, storage, and server resources. It does not manage storage devices, virtual machines, or serve as a power supply. -
Question 5 of 30
5. Question
What is the purpose of the show cdp neighbors command on a Cisco device?
Correct
Explanation:
The show cdp neighbors command displays information about directly connected Cisco devices discovered using the Cisco Discovery Protocol (CDP), including device identifiers, port connections, and capabilities. It does not display IP routes, interface status, or the running configuration.Incorrect
Explanation:
The show cdp neighbors command displays information about directly connected Cisco devices discovered using the Cisco Discovery Protocol (CDP), including device identifiers, port connections, and capabilities. It does not display IP routes, interface status, or the running configuration. -
Question 6 of 30
6. Question
Which of the following is a recommended practice during hardware replacement in a data center?
Correct
Explanation:
Documenting the replacement process and updating records is a recommended practice during hardware replacement to ensure accurate tracking of changes, compliance with maintenance procedures, and easy reference for future issues. Replacing multiple devices simultaneously, ignoring warranty guidelines, and skipping backups are not recommended practices as they can lead to errors, voided warranties, and data loss.Incorrect
Explanation:
Documenting the replacement process and updating records is a recommended practice during hardware replacement to ensure accurate tracking of changes, compliance with maintenance procedures, and easy reference for future issues. Replacing multiple devices simultaneously, ignoring warranty guidelines, and skipping backups are not recommended practices as they can lead to errors, voided warranties, and data loss. -
Question 7 of 30
7. Question
What is the primary purpose of the show interface command on a Cisco device?
Correct
Explanation:
The show interface command is used to display the status and configuration of all interfaces on a Cisco device. It provides detailed information about each interface, including status, configuration, and statistics. It is primarily used for troubleshooting and monitoring purposes.Incorrect
Explanation:
The show interface command is used to display the status and configuration of all interfaces on a Cisco device. It provides detailed information about each interface, including status, configuration, and statistics. It is primarily used for troubleshooting and monitoring purposes. -
Question 8 of 30
8. Question
Which IEEE standard defines the VLAN trunking protocol (VTP) used in Cisco networking?
Correct
Explanation:
The IEEE 802.1Q standard defines the VLAN trunking protocol (VTP) used in Cisco networking for tagging VLAN frames and carrying VLAN information over trunk links. It is the industry-standard protocol for VLAN trunking and is widely supported by networking devices.Incorrect
Explanation:
The IEEE 802.1Q standard defines the VLAN trunking protocol (VTP) used in Cisco networking for tagging VLAN frames and carrying VLAN information over trunk links. It is the industry-standard protocol for VLAN trunking and is widely supported by networking devices. -
Question 9 of 30
9. Question
What is the purpose of ARP (Address Resolution Protocol) in IP networking?
Correct
Explanation:
ARP (Address Resolution Protocol) is used in IP networking to map IP addresses to MAC addresses on a local network segment. It is responsible for discovering the hardware address (MAC address) of a device based on its IP address.Incorrect
Explanation:
ARP (Address Resolution Protocol) is used in IP networking to map IP addresses to MAC addresses on a local network segment. It is responsible for discovering the hardware address (MAC address) of a device based on its IP address. -
Question 10 of 30
10. Question
Which Cisco product is commonly used as a top-of-rack switch in data center environments?
Correct
Explanation:
The Cisco Nexus 9000 Series switches are commonly used as top-of-rack (ToR) switches in data center environments due to their high performance, low latency, and advanced features suitable for modern data center architectures.Incorrect
Explanation:
The Cisco Nexus 9000 Series switches are commonly used as top-of-rack (ToR) switches in data center environments due to their high performance, low latency, and advanced features suitable for modern data center architectures. -
Question 11 of 30
11. Question
What is the purpose of grounding and bonding in a data center?
Correct
Explanation:
Grounding and bonding in a data center are essential for protecting against electrical shock hazards by providing a safe path for electrical currents to flow to ground in the event of a fault or surge. It helps ensure the safety of personnel and equipment.Incorrect
Explanation:
Grounding and bonding in a data center are essential for protecting against electrical shock hazards by providing a safe path for electrical currents to flow to ground in the event of a fault or surge. It helps ensure the safety of personnel and equipment. -
Question 12 of 30
12. Question
What is a common cause of network congestion in data center environments?
Correct
Explanation:
Inadequate bandwidth capacity can lead to network congestion in data center environments, especially during periods of high traffic or when multiple devices are accessing the network simultaneously. This can result in slow performance and degraded network quality.Incorrect
Explanation:
Inadequate bandwidth capacity can lead to network congestion in data center environments, especially during periods of high traffic or when multiple devices are accessing the network simultaneously. This can result in slow performance and degraded network quality. -
Question 13 of 30
13. Question
What is the purpose of a virtual port channel (vPC) in Cisco data center networking?
Correct
Explanation:
A virtual port channel (vPC) in Cisco data center networking enables multi-chassis link aggregation, allowing multiple physical switches to be connected to a server or switch as if they were a single logical port channel. This enhances redundancy and scalability in the network.Incorrect
Explanation:
A virtual port channel (vPC) in Cisco data center networking enables multi-chassis link aggregation, allowing multiple physical switches to be connected to a server or switch as if they were a single logical port channel. This enhances redundancy and scalability in the network. -
Question 14 of 30
14. Question
Which Cisco product provides centralized management and automation of data center infrastructure through policy-based management?
Correct
Explanation:
Cisco ACI (Application Centric Infrastructure) provides centralized management and automation of data center infrastructure through policy-based management, allowing administrators to define and enforce network and application policies across the data center fabric.Incorrect
Explanation:
Cisco ACI (Application Centric Infrastructure) provides centralized management and automation of data center infrastructure through policy-based management, allowing administrators to define and enforce network and application policies across the data center fabric. -
Question 15 of 30
15. Question
What is a best practice for performing firmware updates on Cisco data center devices?
Correct
Explanation:
A best practice for performing firmware updates on Cisco data center devices is to test updates in a lab environment before deploying them to production systems. This helps identify any potential issues or compatibility issues before impacting production systems.Incorrect
Explanation:
A best practice for performing firmware updates on Cisco data center devices is to test updates in a lab environment before deploying them to production systems. This helps identify any potential issues or compatibility issues before impacting production systems. -
Question 16 of 30
16. Question
Why is it important to follow safety procedures when working in a data center environment?
Correct
Explanation:
Following safety procedures in a data center environment is important to prevent equipment damage, ensure the safety of personnel, and maintain the integrity of critical infrastructure. It helps reduce the risk of accidents, injuries, and costly downtime due to mishaps or errors.Incorrect
Explanation:
Following safety procedures in a data center environment is important to prevent equipment damage, ensure the safety of personnel, and maintain the integrity of critical infrastructure. It helps reduce the risk of accidents, injuries, and costly downtime due to mishaps or errors. -
Question 17 of 30
17. Question
What is the primary function of a router in a network?
Correct
Explanation:
A router’s primary function is to transmit data between different networks by determining the best path for data packets to travel. Routers operate at the network layer of the OSI model and use routing tables to make forwarding decisions based on network addresses.Incorrect
Explanation:
A router’s primary function is to transmit data between different networks by determining the best path for data packets to travel. Routers operate at the network layer of the OSI model and use routing tables to make forwarding decisions based on network addresses. -
Question 18 of 30
18. Question
What is the purpose of the show ip route command on a Cisco router?
Correct
Explanation:
The show ip route command on a Cisco router is used to display the routing table and IP routes learned by the router. It provides information about the network topology and the next-hop addresses for different destinations.Incorrect
Explanation:
The show ip route command on a Cisco router is used to display the routing table and IP routes learned by the router. It provides information about the network topology and the next-hop addresses for different destinations. -
Question 19 of 30
19. Question
Which IEEE standard defines Ethernet frames for Gigabit Ethernet (1000BASE-X)?
Correct
Explanation:
The IEEE 802.3 standard defines Ethernet frames for various Ethernet technologies, including Gigabit Ethernet (1000BASE-X). IEEE 802.11 specifies wireless LAN standards, IEEE 802.1Q defines VLAN tagging, and IEEE 802.3ab specifies Gigabit Ethernet over twisted pair (1000BASE-T).Incorrect
Explanation:
The IEEE 802.3 standard defines Ethernet frames for various Ethernet technologies, including Gigabit Ethernet (1000BASE-X). IEEE 802.11 specifies wireless LAN standards, IEEE 802.1Q defines VLAN tagging, and IEEE 802.3ab specifies Gigabit Ethernet over twisted pair (1000BASE-T). -
Question 20 of 30
20. Question
What is the purpose of DHCP (Dynamic Host Configuration Protocol) in IP networking?
Correct
Explanation:
DHCP (Dynamic Host Configuration Protocol) is used to assign IP addresses dynamically to network devices within a network. It automates the process of IP address allocation, subnet mask assignment, default gateway configuration, and other network parameters.Incorrect
Explanation:
DHCP (Dynamic Host Configuration Protocol) is used to assign IP addresses dynamically to network devices within a network. It automates the process of IP address allocation, subnet mask assignment, default gateway configuration, and other network parameters. -
Question 21 of 30
21. Question
Which Cisco product provides fabric switching for storage area networks (SANs) and supports Fibre Channel and Fibre Channel over Ethernet (FCoE) connectivity?
Correct
Explanation:
The Cisco MDS 9000 Series provides fabric switching for storage area networks (SANs) and supports Fibre Channel and Fibre Channel over Ethernet (FCoE) connectivity. It is designed for high-performance SAN environments and offers advanced features for storage networking.Incorrect
Explanation:
The Cisco MDS 9000 Series provides fabric switching for storage area networks (SANs) and supports Fibre Channel and Fibre Channel over Ethernet (FCoE) connectivity. It is designed for high-performance SAN environments and offers advanced features for storage networking. -
Question 22 of 30
22. Question
What is the purpose of the native VLAN in IEEE 802.1Q trunking?
Correct
Explanation:
The purpose of the native VLAN in IEEE 802.1Q trunking is to provide a default VLAN for untagged frames that arrive on the trunk port. Untagged frames are placed in the native VLAN and transmitted without VLAN tagging.Incorrect
Explanation:
The purpose of the native VLAN in IEEE 802.1Q trunking is to provide a default VLAN for untagged frames that arrive on the trunk port. Untagged frames are placed in the native VLAN and transmitted without VLAN tagging. -
Question 23 of 30
23. Question
Why is proper cable management important in a data center environment?
Correct
Explanation:
Proper cable management in a data center environment is important to reduce the risk of cable damage, disconnections, and signal interference. It helps maintain organized and tidy cabling, which facilitates maintenance, troubleshooting, and expansion of the network.Incorrect
Explanation:
Proper cable management in a data center environment is important to reduce the risk of cable damage, disconnections, and signal interference. It helps maintain organized and tidy cabling, which facilitates maintenance, troubleshooting, and expansion of the network. -
Question 24 of 30
24. Question
What is the purpose of the Cisco Discovery Protocol (CDP) in a Cisco network?
Correct
Explanation:
The Cisco Discovery Protocol (CDP) is used in a Cisco network to discover neighboring Cisco devices and obtain information about their capabilities, including device type, IP address, software version, and port connections.Incorrect
Explanation:
The Cisco Discovery Protocol (CDP) is used in a Cisco network to discover neighboring Cisco devices and obtain information about their capabilities, including device type, IP address, software version, and port connections. -
Question 25 of 30
25. Question
What is the purpose of a service profile template in Cisco UCS Manager?
Correct
Explanation:
A service profile template in Cisco UCS Manager is used to define hardware configurations for Cisco UCS servers. It serves as a template for creating service profiles, which define the specific configuration settings for individual servers within the UCS domain.Incorrect
Explanation:
A service profile template in Cisco UCS Manager is used to define hardware configurations for Cisco UCS servers. It serves as a template for creating service profiles, which define the specific configuration settings for individual servers within the UCS domain. -
Question 26 of 30
26. Question
What is the purpose of the Cisco Nexus Fabric Extender (FEX) in a Cisco Nexus data center architecture?
Correct
Explanation:
The Cisco Nexus Fabric Extender (FEX) is designed to provide server connectivity to the fabric without adding additional switch ports. It extends the fabric to servers and simplifies management by allowing the fabric switches to manage the FEX-connected servers as if they were directly connected.Incorrect
Explanation:
The Cisco Nexus Fabric Extender (FEX) is designed to provide server connectivity to the fabric without adding additional switch ports. It extends the fabric to servers and simplifies management by allowing the fabric switches to manage the FEX-connected servers as if they were directly connected. -
Question 27 of 30
27. Question
A network administrator notices that a Cisco Nexus switch port is in the errdisabled state. What could be a possible cause of this issue?
Correct
Explanation:
The errdisabled state on a Cisco Nexus switch port is typically caused by a configuration error on the switch port. This could include issues such as a security violation, channel misconfiguration, or other misconfigurations that result in the port being disabled by the switch.Incorrect
Explanation:
The errdisabled state on a Cisco Nexus switch port is typically caused by a configuration error on the switch port. This could include issues such as a security violation, channel misconfiguration, or other misconfigurations that result in the port being disabled by the switch. -
Question 28 of 30
28. Question
What is a best practice for performing routine maintenance on Cisco Nexus switches in a data center environment?
Correct
Explanation:
Performing regular backups of the switch configuration is a best practice for routine maintenance on Cisco Nexus switches in a data center environment. This ensures that configuration settings are safely stored and can be restored in case of any configuration changes or failures.Incorrect
Explanation:
Performing regular backups of the switch configuration is a best practice for routine maintenance on Cisco Nexus switches in a data center environment. This ensures that configuration settings are safely stored and can be restored in case of any configuration changes or failures. -
Question 29 of 30
29. Question
Which Cisco product provides centralized storage management and supports protocols such as NFS, SMB, and iSCSI?
Correct
Explanation:
Cisco HyperFlex provides centralized storage management and supports protocols such as NFS (Network File System), SMB (Server Message Block), and iSCSI (Internet Small Computer System Interface). It is a hyper-converged infrastructure solution that integrates computing, storage, and networking resources.Incorrect
Explanation:
Cisco HyperFlex provides centralized storage management and supports protocols such as NFS (Network File System), SMB (Server Message Block), and iSCSI (Internet Small Computer System Interface). It is a hyper-converged infrastructure solution that integrates computing, storage, and networking resources. -
Question 30 of 30
30. Question
Why is it important to monitor environmental factors such as temperature and humidity in a data center?
Correct
Explanation:
Monitoring environmental factors such as temperature and humidity in a data center is important to prevent equipment damage and downtime. Extreme temperatures or humidity levels can lead to hardware failures, data loss, and service interruptions, highlighting the importance of environmental monitoring and control.Incorrect
Explanation:
Monitoring environmental factors such as temperature and humidity in a data center is important to prevent equipment damage and downtime. Extreme temperatures or humidity levels can lead to hardware failures, data loss, and service interruptions, highlighting the importance of environmental monitoring and control.