2024年07月 HP HPE7-A01実際の問題とブレーン問題集
HPE7-A01合格させる問題集でHP24時間で試験合格できます
HP HPE7-A01（Aruba Certified Campus Access Professional）試験は、Aruba 無線ネットワークの実装と管理の知識とスキルを証明するための認定試験です。この試験は、企業環境で Aruba 無線 LAN テクノロジーやソリューションに取り組む IT プロフェッショナルを対象としています。この認定試験は、候補者がキャンパス環境で Aruba 無線ネットワークを設計、実装、管理する専門知識を持っていることを証明します。
質問 # 48
By default, Best Effort is higher priority than which priority traffic type?
- A. All queues
- B. Network Control
- C. Internet Control
- D. Background
正解：D
解説：
This is because Best Effort traffic is all other kinds of non-detrimental traffic that are not sensitive to Quality of Service metrics (jitter, packet loss, latency). A typical example would be peer-to-peer and email applications2. Background traffic is a type of traffic that is used for system maintenance or backup purposes and does not affect the performance or availability of the network3.
Therefore, Best Effort traffic has a higher priority than Background traffic in terms of network resources allocation and management.
1: https://www.arubanetworks.com/techdocs/ArubaDocPortal/content/docportal.htm 2: https://stackoverflow.com/questions/33854306/best-effort-traffic-and-real-time-traffic-difference 3: https://www.informit.com/articles/article.aspx?p=25315&seqNum=4
質問 # 49
Refer to the exhibit.
A company has deployed 200 AP-635 access points. To but is not working as expected What would be the correct action to fix the issue?
- A. Change the SSID to WPA3-Enterpnse (CNSA).
- B. Change the SSID to WPA3-Enterprise (CCM).
- C. Change the SSID to WPA3-Personal
- D. Change the SSID to WPA3-Enhanced Open
正解：A
解説：
Explanation
According to the Aruba Campus Access Professional documents1, WPA3-Enterprise is a security mode that supports 802.1X authentication and encryption with either AES-CCM or AES-GCMP. WPA3-Enterprise also optionally adds usage of Suite-B 192-bit minimum-level security suite that is aligned with Commercial National Security Algorithm (CNSA) for enterprise networks2. This mode provides the highest level of security and is suitable for government and financial institutions.
The exhibit shows that the SSID is configured with WPA3-Enterprise (CCM), which uses AES-CCM as the encryption protocol. However, this mode is not compatible with some devices that require CNSA compliance.
Therefore, changing the SSID to WPA3-Enterprise (CNSA) would fix the issue and allow all devices to connect to the network.
質問 # 50
What is the order of operations tor Key Management service for a wireless client roaming from AP1 to AP2?
正解：
解説：
Explanation
https://www.arubanetworks.com/techdocs/Instant_85_WebHelp/Content/instant-ug/wlan-ssid-conf/conf-fast-roa
質問 # 51
What is the best practice for handling voice traffic with dynamic segmentation on AOS-CX switches?
- A. Switch authentication and local forwarding of the voice traffic
- B. Controller authentication and port-based tunneling of all traffic
- C. Central authentication and port-based tunneling of the voice traffic.
- D. Switch authentication and user-based tunneling of the voice traffic.
正解：A
解説：
Explanation
This is the best practice for handling voice traffic with dynamic segmentation on AOS-CX switches. Dynamic segmentation is a feature that allows AOS-CX switches to tunnel user traffic to a controller or another switch based on user roles and policies. For voice traffic, it is recommended to use switch authentication and local forwarding, which means the voice devices are authenticated by the switch and their traffic is forwarded locally without tunneling. This reduces latency and jitter for voice traffic and improves voice quality. The other options are incorrect because they either use central authentication or tunneling, which are not optimal for voice traffic. References:
https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6728/bk01-ch05.html
https://www.arubanetworks.com/assets/ds/DS_AOS-CX.pdf
質問 # 52
Which feature allows the device to remain operational when a remote link failure occurs between a Gateway cluster and a RADIUS server that is either in the cloud or a datacenter?
- A. Opportunistic key caching
- B. Authentication survivability
- C. MAC caching
- D. MAC Authentication
正解：B
解説：
Explanation
Authentication survivability is a feature that allows the device to remain operational when a remote link failure occurs between a Gateway cluster and a RADIUS server that is either in the cloud or a datacenter.
Authentication survivability enables the Gateway cluster to cache successful authentication requests from the RADIUS server and use them to authenticate clients when the RADIUS server is unreachable. Authentication survivability also allows clients to use MAC caching or MAC authentication bypass (MAB) methods to access the network when the RADIUS server is down. References:
https://www.arubanetworks.com/assets/tg/TG_AuthSurvivability.pdf
質問 # 53
What is an OSPF transit network?
- A. a network that connects to a different routing protocol
- B. a network that uses tunnels to connect two areas
- C. a network on which a router discovers at least one neighbor
- D. a special network that connects two different areas
正解：D
解説：
Explanation
OSPF is a link-state routing protocol that divides a network into areas. An area is a logical grouping of routers that share the same link-state information. Area 0 is the backbone area that connects all other areas. A transit network is a special network that connects two different areas. A transit network must belong to Area 0 and have at least two OSPF routers attached to it. A transit network allows traffic from one area to pass through another area without changing the area ID. References:
https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/7039-1.html
https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/13703-8.html
質問 # 54
List the firewall role derivation flow in the correct order
正解：
解説：
1 - Server derived role
2 - User derived role
3 - Authentication default role
4 - Initiation role assigned
質問 # 55
For the Aruba CX 6400 switch, what does virtual output queueing (VOQ) implement that is different from most typical campus switches?
- A. large egress packet buffers
- B. per port ASICs
- C. VSX
- D. large ingress packet buffers
正解：D
解説：
The Aruba CX 6400 switch is a modular switch that supports high-performance and high-density Ethernet switching for campus and data center networks. One of the features that distinguishes the Aruba CX 6400 switch from most typical campus switches is virtual output queueing (VOQ). VOQ is a technique that implements large ingress packet buffers on each port to prevent head-of-line blocking and packet loss due to congestion2. VOQ allows each port to have multiple queues for different output ports and prioritize packets based on their destination and QoS class2. VOQ enables the Aruba CX 6400 switch to achieve high throughput and low latency for various traffic types and scenarios. Reference: 2 https://www.arubanetworks.com/assets/ds/DS_CX6400Series.pdf
質問 # 56
A customer is using a legacy application that communicates at layer-2. The customer would like to keep this application working across the campus which is connected via layer-3. The legacy devices are connected to Aruba CX 6300 switches throughout the campus.
Which technology minimizes flooding so the legacy application can work efficiently?
- A. Generic Routing Encapsulation (GRE)
- B. Static VXLAN
- C. EVPN-VXLAN
- D. Ethernet over IP (EolP)
正解：C
解説：
Explanation
EVPN-VXLAN is a technology that allows layer-2 communication across layer-3 networks by using Ethernet VPN (EVPN) as a control plane and Virtual Extensible LAN (VXLAN) as a data plane3. EVPN-VXLAN can be used to support legacy applications that communicate at layer-2 across different campuses or data centers that are connected via layer-3. EVPN-VXLAN minimizes flooding by using BGP to distribute MAC addresses and IP addresses of hosts across different VXLAN segments3. EVPN-VXLAN also provides benefits such as loop prevention, load balancing, mobility, and scalability3. References: 3
https://www.arubanetworks.com/assets/tg/TG_EVPN_VXLAN.pdf
質問 # 57
Which statements regarding Aruba NAE agents are true? (Select two )
- A. A single NAE script can be used by multiple NAE agents
- B. NAE agents will never consume more than 10% of switch processor resources
- C. NAE agents are active at all times
- D. A single NAE agent can be used by multiple NAE scripts.
- E. NAE scripts must be reviewed and signed by Aruba before being used
正解：A、B
解説：
The statements that are true regarding Aruba NAE agents are A and C.
A) A single NAE script can be used by multiple NAE agents. This means that you can create different instances of the same script with different parameters or settings. For example, you can use the same script to monitor different VLANs or interfaces on the switch1.
C) NAE agents will never consume more than 10% of switch processor resources. This is a built-in safeguard that prevents the agents from affecting the switch performance or stability. If an agent exceeds the 10% limit, it will be automatically disabled and an alert will be generated2.
The other options are incorrect because:
B) NAE agents are not active at all times. They can be enabled or disabled by the user, either manually or based on a schedule. They can also be disabled automatically if they encounter an error or exceed the resource limit1.
D) NAE scripts do not need to be reviewed and signed by Aruba before being used. You can create your own custom scripts using Python and upload them to the switch or Aruba Central. You can also use the scripts provided by Aruba or other sources, as long as they are compatible with the switch firmware version1.
E) A single NAE agent cannot be used by multiple NAE scripts. An agent is an instance of a script that runs on the switch. Each agent can only run one script at a time1.
質問 # 58
What is an Aruba-recommended best practice for hardening that only applies to Aruba CX 6300 series switches with dedicated management ports?
- A. Disable all management services on the default VRF.
- B. Manually enable Enhanced Security Mode from a console session.
- C. Create a dedicated management VRF, and assign the management port to it.
- D. Implement a control plane ACL to limit access to approved IPs and/or subnets
正解：C
解説：
Explanation
This is an Aruba-recommended best practice for hardening that only applies to Aruba CX 6300 series switches with dedicated management ports. A dedicated management port is a physical port that is used exclusively for out-of-band management access to the switch. A dedicated management VRF is a virtual routing and forwarding instance that isolates the management traffic from other traffic on the switch. By creating a dedicated management VRF and assigning the management port to it, the administrator can enhance the security and performance of the management access to the switch. The other options are incorrect because they either do not apply to switches with dedicated management ports or do not follow Aruba-recommended best practices. References: https://www.arubanetworks.com/assets/ds/DS_AOS-CX.pdf
https://www.arubanetworks.com/assets/tg/TB_ArubaCX_Switching.pdf
質問 # 59
What is one advantage of using OCSP vs CRLs for certificate validation?
- A. less complex to implement
- B. reduces latency between the time a certificate is revoked and validation reflects this status
- C. higher availability for certificate validation
- D. supports longer certificate validity periods
正解：B
解説：
Explanation
OCSP is a protocol that allows clients to query the CA or a trusted responder for the status of a specific certificate. OCSP requests and responses are smaller and faster than CRLs, and they can provide real-time information about the revocation status of a certificate12. CRLs are lists of all revoked certificates that are downloaded from the CA. CRLs can present issues, as they can become outdated and have to be downloaded frequently13. Therefore, OCSP reduces latency between the time a certificate is revoked and validation reflects this status. References: 1 https://sectigostore.com/blog/ocsp-vs-crl-whats-the-difference/ 2
https://www.keyfactor.com/blog/what-is-a-certificate-revocation-list-crl-vs-ocsp/ 3
https://www.fortinet.com/resources/cyberglossary/ocsp
質問 # 60
How do you allow a new VLAN 100 between VSX pair inter-switch-link 256 for port 1/45 and 2/45?
- A. vlan trunk allowed 100 for ports 1/45 and 1/46
- B. vlan trunk add 100 in MLAG256
- C. vlan trunk add 100 in LAG256
- D. vlan trunk allowed 100 in LAG256
正解：D
解説：
Explanation
To allow a new VLAN 100 between VSX pair inter-switch-link 256 for port 1/45 and 2/45, you need to use the command vlan trunk allowed 100 in LAG256. This will add VLAN 100 to the list of allowed VLANs on the trunk port LAG256, which is part of the inter-switch-link between VSX peers. The other options are incorrect because they either do not use the correct command or do not specify the correct port or VLAN.
References: https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6728/bk01-ch07.html
https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6728/bk01-ch02.html
質問 # 61
With the Aruba CX 6200 24G switch with uplinks or 1/1/25 and 1/1/26, how do you protect client ports from forming layer-2 loops?
- A. int 1/1/1-1/1/24, loop-protect
- B. int 1/1/1-1/1/24. loop-guard
- C. int 1/1/1-1/1/28. loop-protect
- D. int 1/1/1-1/1/28. loop-guard
正解：A
解説：
The command loop-protect enables loop protection on each layer 2 interface (port, LAG, or VLAN) for which loop protection is needed. Loop protection can find loops in untagged layer 2 links, as well as on tagged VLANs.
質問 # 62
Which method is used to onboard a new UXI in an existing environment with 802 1X authentication? (The sensor has no cellular connection)
- A. Use the CLI via the serial cable and adjust the initial configuration.
- B. Connect the new UXI from an already installed one and adjust the initial configuration.
- C. Use the UXI app on your smartphone and connect the UXI via Bluetooth
- D. Use the Aruba installer app on your smartphone to scan the barcode
正解：C
解説：
To onboard a new UXI in an existing environment with 802.1X authentication, you need to use the UXI app on your smartphone and connect the UXI via Bluetooth. The UXI app allows you to scan the QR code on the UXI sensor and configure its network settings, such as SSID, password, IP address, etc. The Bluetooth connection allows you to communicate with the UXI sensor without requiring any network access or cellular connection. The other options are incorrect because they either do not use the UXI app or do not use Bluetooth. Reference: https://www.arubanetworks.com/products/network-management-operations/analytics-monitoring/user-experience-insight-sensors/ https://help.centralon-prem.arubanetworks.com/2.5.4/documentation/online_help/content/nms-on-prem/aos-cx/get-started/uxi-sensor.htm
質問 # 63
A customer is looking Tor a wireless authentication solution for all of their loT devices that meet the following requirements
- The wireless traffic between the IoT devices and the Access Points must be encrypted
- Unique passphrase per device
- Use fingerprint information to perform role-based access
Which solutions will address the customer's requirements? (Select two.)
- A. MPSK Local with MAC Authentication
- B. ClearPass Policy Manager
- C. Local User Derivation Rules
- D. MPSK and an internal RADIUS server
- E. MPSK Local with EAP-TLS
正解：B、E
解説：
The correct answers are C and D.
MPSK (Multi Pre-Shared Key) is a feature that allows multiple PSKs to be used on a single SSID, providing device-specific or group-specific passphrases for enhanced security and deployment flexibility for headless IoT devices1. MPSK requires MAC authentication against a ClearPass Policy Manager server, which returns the encrypted passphrase for the device in a RADIUS VSA2. ClearPass Policy Manager is a platform that provides role- and device-based network access control for any user across any wired, wireless and VPN infrastructure3. ClearPass Policy Manager can also use device profiling and posture assessment to assign roles based on device fingerprint information4.
MPSK Local is a variant of MPSK that allows the user to configure up to 24 PSKs per SSID locally on the device, without requiring ClearPass Policy Manager5. MPSK Local can be combined with EAP-TLS (Extensible Authentication Protocol-Transport Layer Security), which is a secure authentication method that uses certificates to encrypt the wireless traffic between the IoT devices and the access points6. EAP-TLS can also use device certificates to perform role-based access control6.
Therefore, both ClearPass Policy Manager and MPSK Local with EAP-TLS can meet the customer's requirements for wireless authentication, encryption, unique passphrase, and role-based access for their IoT devices.
MPSK and an internal RADIUS server is not a valid solution, because MPSK does not support internal RADIUS servers and requires ClearPass Policy Manager789. MPSK Local with MAC Authentication is not a valid solution, because MAC Authentication does not encrypt the wireless traffic or use fingerprint information for role-based access2. Local User Derivation Rules are not a valid solution, because they do not provide unique passphrase per device or use fingerprint information for role-based access101112.
質問 # 64
A customer wants to provide wired security as close to the source as possible The wired security must meet the following requirements:
-allow ping from the IT management VLAN to the user VLAN
-deny ping sourcing from the user VLAN to the IT management VLAN
The customer is using Aruba CX 6300s
What is the correct way to implement these requirements?
- A. Apply an outbound ACL on the user VLAN denying icmp echo traffic toward the IT management VLAN
- B. Apply an inbound ACL on the user VLAN denying icmp echo traffic toward the IT management VLAN
- C. Apply an outbound ACL on the user VLAN allowing temp echo-reply traffic toward the IT management VLAN
- D. Apply an inbound ACL on the user VLAN allowing icmp echo-reply traffic toward the IT management VLAN
正解：B
解説：
Explanation
An inbound ACL is applied to traffic entering a port or VLAN. An outbound ACL is applied to traffic leaving a port or VLAN4. To deny ping sourcing from the user VLAN to the IT management VLAN, an inbound ACL on the user VLAN should be used to filter icmp echo traffic toward the IT management VLAN. Icmp echo-reply traffic is not needed to be allowed because it is already permitted by default5. References: 4
https://techhub.hpe.com/eginfolib/Aruba/OS-CX_10.04/5200-6692/GUID-9B8F6E8F-9C7A-4F0D-AE7B-9D8E
5
https://techhub.hpe.com/eginfolib/Aruba/OS-CX_10.04/5200-6692/GUID-0C3A9D0F-6E5B-4E1A-AF3C-8D8
質問 # 65
A company recently deployed new Aruba Access Points at different branch offices Wireless 802.1X authentication will be against a RADIUS server in the cloud. The security team is concerned that the traffic between the AP and the RADIUS server will be exposed.
What is the appropriate solution for this scenario?
- A. Configure RadSec on the AP and Aruba Central.
- B. Configure RadSec on the AP and the RADIUS server
- C. Enable EAP-TTLS on all wireless devices.
- D. Enable EAP-TLS on all wireless devices
正解：B
解説：
Explanation
This is the appropriate solution for this scenario where wireless 802.1X authentication will be against a RADIUS server in the cloud and the security team is concerned that the traffic between the AP and the RADIUS server will be exposed. RadSec, also known as RADIUS over TLS, is a protocol that provides encryption and authentication for RADIUS traffic over TCP and TLS. RadSec can be configured on both the AP and the RADIUS server to establish a secure tunnel for exchanging RADIUS packets. The other options are incorrect because they either do not provide encryption or authentication for RADIUS traffic or do not involve RadSec. References: https://www.securew2.com/blog/what-is-radsec/
https://www.cloudradius.com/radsec-vs-radius/
質問 # 66
you are implementing ClearPass Policy Manager with EAP-TLS for authenticating all corporate-owned devices.
What are two possible solutions to the problem of deploying client certificates to corporate MacBooks that are joined to a Windows domain? (Select two.)
- A. ClearPass OnGuard
- B. Mobile Device Manager
- C. Apple Configurator and a GPO
- D. ClearPass OnBoard
- E. Windows Server PKl and a GPO
正解：D、E
解説：
The reason is that ClearPass OnBoard is a tool that allows you to enroll Mac computers into a ClearPass Policy Manager site using an Apple MDM push certificate. This certificate can be obtained from Apple or from a third-party PKI provider.
Apple Configurator is a tool that allows you to configure and deploy Mac computers using a GPO. This tool can also be used to enroll Mac computers into a ClearPass Policy Manager site using an Apple MDM push certificate.
質問 # 67
you need to have different routing-table requirements With Aruba CX 6300 VSF configuration.
Assuming the correct layer-2 VLAN already exists, how would you create a new SVI for a separate routing table?
- A. Create a new routing table, and attach VLANS to it
- B. Create a new VLAN. and attach the routing table to it
- C. Create a new SVI and use attach command.
- D. create a new VLAN, and attach the VRF to it.
正解：C
解説：
The correct answer is C. Create a new SVI and use attach command.
To create a new SVI for a separate routing table, you need to use the attach command to associate the SVI with a VRF (Virtual Routing and Forwarding) instance. A VRF is a logical entity that allows multiple routing tables to coexist on the same switch. Each VRF has its own set of interfaces, routing protocols, and routes that are isolated from other VRFs.
According to the AOS-CX Virtual Switching Framework (VSF) Guide1, one of the steps to configure VRF-aware VSF is:
Configure the VRFs on each member switch and assign the SVIs to the respective VRFs using the attach command. For example:
switch(config)# vrf red
switch(config-vrf)# exit
switch(config)# interface vlan 10
switch(config-if-vlan)# ip address 10.1.1.1/24
switch(config-if-vlan)# attach vrf red
The above commands create a VRF named red and assign VLAN 10 SVI to it. The SVI has an IP address of 10.1.1.1/24.
The other options are incorrect because:
A) You cannot attach a VRF to a VLAN directly. You need to create an SVI for the VLAN and then attach the VRF to the SVI.
B) You cannot create a new routing table manually. You need to create a VRF and then use routing protocols or static routes to populate the routing table for the VRF.
D) You cannot attach a routing table to a VLAN directly. You need to create an SVI for the VLAN and then attach a VRF that has a routing table associated with it.
質問 # 68
Describe the difference between Class of Service (CoS) and Differentiated Services Code Point (DSCP).
- A. CoS has much finer granularity than DSCP
- B. CoS is only contained in VLAN Tag fields DSCP is in the IP Header and preserved throughout the IP packet flow
- C. CoS is only used to determine CLASS of traffic DSCP is only used to differentiate between different Classes.
- D. They are similar and can be used interchangeably.
正解：B
解説：
Explanation
CoS and DSCP are both methods of marking packets for quality of service (QoS) purposes. QoS is a mechanism that allows network devices to prioritize and differentiate traffic based on certain criteria, such as application type, source, destination, etc. CoS stands for Class of Service and is a 3-bit field in the 802.1Q VLAN tag header. CoS can only be used on Ethernet frames that have a VLAN tag, and it can only be preserved within a single VLAN domain. DSCP stands for Differentiated Services Code Point and is a 6-bit field in the IP header. DSCP can be used on any IP packet, regardless of the underlying layer 2 technology, and it can be preserved throughout the IP packet flow, unless it is modified by intermediate devices.
References:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos/configuration/15-mt/qos-15-mt-book/qos-overview.html
https://www.cisco.com/c/en/us/support/docs/lan-switching/8021q/17056-741-4.html
https://www.cisco.com/c/en/us/support/docs/quality-of-service-qos/qos-packet-marking/10103-dscpvalues.html
質問 # 69
Refer to the image.
Your customer is complaining of weak Wi-Fi coverage in their office. They mention that the office on the other side of the hall has much better signal What is the likely cause of this issue7
- A. The AP is an outdoor access point.
- B. The AP is configured in Mesh mode
- C. The AP is using a directional antenna.
- D. The AP is a remote access point.
正解：C
解説：
Explanation
The likely cause of the issue of weak Wi-Fi coverage in the office is that the AP is using a directional antenna.
A directional antenna is an antenna that radiates or receives radio waves more strongly in one or more directions, creating a focused beam of signal. A directional antenna can provide better coverage and performance for a specific area, but it can also create dead zones or weak spots for other areas. The other options are incorrect because they either do not affect the Wi-Fi coverage or do not match the scenario.
References:
https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/wlan-rf/rf-fundam
https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/wlan-rf/antennas.
質問 # 70
A customer just upgraded aggregation layer switches and noticed traffic dropping for 120 seconds after the aggregation layer came online again. What is the best way to avoid having this traffic dropped given the topology below?
- A. Configure the linkup delay timer to exclude LAGS 101 and 102, which will allow time for routing adjacencies to form and to learn upstream routes
- B. Configure the linkup delay timer to include LAGs 101 and 102, which will allow time for routing adjacencies lo form and to learn upstream routes
- C. Configure the linkup delay timer to 240 seconds to double the amount of lime for the initial phase to sync
- D. Configure the linkup delay timer to 120 seconds, which will allow the right amount of time for the initial phase to sync
正解：B
解説：
Explanation
The reason is that the linkup delay timer is a feature that delays bringing downstream VSX links up, following a VSX device reboot or an ISL flap. The linkup delay timer has two phases: initial synchronization phase and link-up delay phase.
The initial synchronization phase is the download phase where the rebooted node learns all the LACP+MAC+ARP+STP database entries from its VSX peer through ISLP. The initial synchronization timer, which is not configurable, is the required time to download the database information from the peer.
The link-up delay phase is the duration for installing the downloaded entries to the ASIC, establishing router adjacencies with core nodes and learning upstream routes. The link-up delay timer default value is 180 seconds. Depending on the network size, ARP/routing tables size, you might be required to set the timer to a higher value (maximum 600 seconds).
When both VSX devices reboot, the link-up delay timer is not used.
Therefore, by configuring the linkup delay timer to include LAGs 101 and 102, which are part of the same VSX device as LAG 201, you can ensure that both devices have enough time to synchronize their databases and form routing adjacencies before bringing down their downstream links.
質問 # 71
What are two advantages of splitting a larger OSPF area into a number of smaller areas? (Select two )
- A. It extends the LSDB
- B. it simplifies the configuration.
- C. It increases stability
- D. It reduces processing overhead.
- E. It reduces the total number of LSAs
正解：C、D
解説：
Splitting a larger OSPF area into a number of smaller areas has several advantages for network scalability and performance. Some of these advantages are:
It increases stability by limiting the impact of topology changes within an area. When a link or router fails in an area, only routers within that area need to run the SPF algorithm and update their routing tables. Routers in other areas are not affected by the change and do not need to recalculate their routes.
It reduces processing overhead by reducing the size and frequency of link-state advertisements (LSAs). LSAs are packets that contain information about the network topology and are flooded within an area. By dividing a network into smaller areas, each area has fewer LSAs to generate, store, and process, which saves CPU and memory resources on routers.
It reduces bandwidth consumption by reducing the amount of routing information exchanged between areas. Routers that connect different areas, called area border routers (ABRs), summarize the routing information from one area into a single LSA and advertise it to another area. This reduces the number of LSAs that need to be transmitted across area boundaries and saves network bandwidth.
質問 # 72
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HPE7-A01認定試験は、エンタープライズ環境でArubaワイヤレスソリューションの展開と管理に関心のあるネットワークの専門家に最適です。この認定は、Aruba WLANソリューションの包括的な理解を提供し、個人がArubaワイヤレスネットワークを設計、実装、管理する準備をします。
最新問題をダウンロードHPE7-A01問題集で2024年最新のHPE7-A01試験問題集：https://jp.fast2test.com/HPE7-A01-premium-file.html
最新問題を使おうHPE7-A01試験問題と解答PDFで一年間無料更新：https://drive.google.com/open?id=1XU4445-cpz4ac6wPBzaAZRzIoCXM-_tU