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HP HPE6-A85考試內容 - HPE6-A85參考資料

HP HPE6-A85考古題是最新有效的學習資料，由專家認證，涵蓋真實考試內容。擁有高品質的考題資料，能幫助考生通過第一次嘗試的HPE6-A85考試。我們的HPE6-A85在線測試引擎版本不光可以模擬真實的考試環境，還支持設備離線使用，方便考生隨時隨地的學習理解。選擇最新版本的HP HPE6-A85考古題，如果你考試失敗了，我們將全額退款給你，因為我們有足夠的信心讓你通過HPE6-A85考試。

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>> HP HPE6-A85考試內容 <<

HPE6-A85考試內容和認證考試產品中的領先材料提供者＆HPE6-A85參考資料

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最新的 ACA Campus Access Associate HPE6-A85 免費考試真題 (Q82-Q87):

問題 #82
You have been asked to onboard a new Aruba 6300M in a customer deployment You are working remotely rather than on-site You have a colleague installing the switch The colleague has provided you with a remote console session to configure the edge switch You have been asked to configure a link aggregation going back to the cores using interfaces 1/1/51 and 1/1/52 The Senior Engineer of the project has asked you to configure the switch and 1Q uplink with these guidelines
1. Add VLAN 20 to the local VLAN database with name Mgmt
2. Add L3 SVl on VLAN 20 for Management using address 10 in the 10.1.1 0/24 subnet 3. Add LAG 1 using LACP mode active for the uplink
4 use vlan 20 as the native vlan on the LAG 5. Make sure the interfaces are all ON.
Which configuration script will achieve the task?

A. Edgel# conf t vlan 20 name Mgmt interface vlan 20 ip address 10 1 1 10/24 no shut interface lag 1 shut vlan trunk native 20 vlan trunk allowed all lacp mode active Int 1/1/51.1/1/52 shut no routing lag 1 interface lag 1 no shut interface 1/1/51.1/1/52 no shut
B. Edge1# conf t vlan 20 name Mgmt interface vlan 20 ip address 10.1.1.10/24 no shut interface lag 1 shut vlan access 20 lacp mode active Int 1/1/51.1/1/52 shut no routing lag 1 interface lag 1 no shut
C. Edgel# conf t vlan 20 name Mgmt interface vlan 20 ip address 10 1.1 10/24 no shut interface
1/1/51.1/1/52 shut vlan trunk native 20 vlan trunk allowed all lag 1 lacp mode active interface 1/1/51.1/1/52 no shut
D. conf t vlan 20 name Mgmt ip address 10 1 1.10/24 no shut interface lag 1 shut vlan trunk native 1 vlan trunk allowed all lacp mode active int 1/1/51.1/1/52 shut no routing interface lag 1 no shut interface
1/1/51.1/1/52 no shut

答案：A

解題說明：
Explanation
This configuration script will achieve the task as it follows the guidelines given by the Senior Engineer. It creates VLAN 20 with name Mgmt, adds L3 SVI on VLAN 20 with IP address 10.1.1.10/24, creates LAG 1 with LACP mode active for the uplink, uses VLAN 20 as the native VLAN on the LAG, and ensures that the interfaces are all ON.
References:https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6790/GUID-8F0E7E8B-0F4

問題 #83
You need to drop excessive broadcast traffic on ingress to an ArubaOS-CX switch What is the best technology to use for this task?

A. Rate limiting
B. Strict queuing
C. QoS shaping
D. DWRR queuing

答案：A

解題說明：
Explanation
The best technology to use for dropping excessive broadcast traffic on ingress to an ArubaOS-CX switch is rate limiting. Rate limiting is a feature that allows network administrators to control the amount of traffic that enters or leaves a port or a VLAN on a switch by setting bandwidth thresholds or limits. Rate limiting can be used to prevent network congestion, improve network performance, enforce service level agreements(SLAs), or mitigate denial-of-service (DoS) attacks. Rate limiting can be applied to broadcast traffic on ingress to an ArubaOS-CX switch by using the storm-control command in interface configuration mode. This command allows network administrators to specify the percentage of bandwidth or packets per second that can be used by broadcast traffic on an ingress port. If the broadcast traffic exceeds the specified threshold, the switch will drop the excess packets.
The other options are not technologies for dropping excessive broadcast traffic on ingress because:
DWRR queuing: DWRR stands for Deficit Weighted Round Robin, which is a queuing algorithm that assigns different weights or priorities to different traffic classes or queues on an egress port. DWRR ensures that each queue gets its fair share of bandwidth based on its weight while avoiding starvation of lower priority queues. DWRR does not drop excessive broadcast traffic on ingress, but rather schedules outgoing traffic on egress.
QoS shaping: QoS stands for Quality of Service, which is a set of techniques that manage network resources and provide different levels of service to different types of traffic based on their requirements.
QoS shaping is a technique that delays or buffers outgoing traffic on an egress port to match the available bandwidth or rate limit. QoS shaping does not drop excessive broadcast traffic on ingress, but rather smooths outgoing traffic on egress.
Strict queuing: Strict queuing is another queuing algorithm that assigns different priorities to different traffic classes or queues on an egress port. Strict queuing ensures that higher priority queues are always served before lower priority queues regardless of their bandwidth requirements or weights. Strict queuing does not drop excessive broadcast traffic on ingress, but rather schedules outgoing traffic on egress.
References: https://en.wikipedia.org/wiki/Rate_limiting
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/qos/storm-control.htm
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/qos/dwrr.htm
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/qos/shaping.htm
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/qos/strict.htm

問題 #84
Two independent ArubaOS-CX 6300 switches with Spanning Tree (STP) settings are interconnected with two cables between ports 1/1/1 and 1/1/2 All four ports have "no shutdown" and "no routing" commands How will STP forward or discard traffic on these ports?

A. The switch with the lower MAC address will forward on both ports, while the switch with the higher MAC address will discard on one port
B. The switch with the lower MAC address will discard on one port, while the switch with the higher MAC address will discard on one port
C. The switch with the lower MAC address will discard on one port, while the switch with the higher MAC address will forward on both ports
D. The switch with the lower MAC address will forward on both ports, while the switch with the higher MAC address will forward on both ports

答案：B

解題說明：
Explanation
The way that STP Spanning Tree Protocol. STP is a network protocol that ensures a loop-free topology for any bridged Ethernet local area network by preventing redundant paths between switches or bridges from creating loops that cause broadcast storms, multiple frame transmission, and MAC table instability. STP creates a logical tree structure that spans all of the switches in an extended network and blocks any redundant links that are not part of the tree from forwarding data packets . will forward or discard traffic on these ports is as follows:
STP will elect a root bridge among the two switches based on their bridge IDs, which are composed of a priority value and a MAC address. The switch with the lower bridge ID will become the root bridge and will forward traffic on all its ports.
STP will assign a role and a state to each port on both switches based on their port IDs, which are composed of a priority value and a port number. The port with the lower port ID will become the designated port and will forward traffic, while the port with the higher port ID will become the alternate port and will discard traffic.
In this scenario, since both switches have two cables connected between ports 1/1/1 and 1/1/2, there will be two possible paths between them, creating a loop. To prevent this loop, STP will block one of these paths by discarding traffic on one of the ports on each switch.
Assuming that both switches have the same priority value (default is 32768), the switch with the lower MAC address will have the lower bridge ID and will become the root bridge. The root bridge will forward traffic on both ports 1/1/1 and 1/1/2.
Assuming that both ports have the same priority value (default is 128), port 1/1/1 will have a lower port ID than port 1/1/2 on both switches because it has a lower port number. Port 1/1/1 will become the designated port and will forward traffic, while port 1/1/2 will become the alternate port and will discard traffic.
Therefore, the switch with the lower MAC address will discard traffic on one port (port 1/1/2), while the switch with the higher MAC address will also discard traffic on one port (port 1/1/2).
References: 3 https://en.wikipedia.org/wiki/Spanning_Tree_Protocol

問題 #85
What is the correct order of the TCP 3-Way Handshake sequence?

答案：

解題說明：

Explanation:
TCP 3-Way Handshake sequence is:
Step 1: The initiating host sends a packet with no data to the target host with a SEQ=1 and sets the SYN flag to 1.
Step 2: The target host responds with a packet with ACK=2, SEQ=8, and the SYN and ACK flags set to
1.
Step 3: The initiating host sends a packet with SEQ=2, ACK=9, and the ACK flag set to 1.
Step 4: A normal-controlled connection is established.
References:
https://en.wikipedia.org/wiki/Transmission_Control_Protocol
https://www.cisco.com/c/en/us/support/docs/ip/routing-information-protocol-rip/13788-3.html

問題 #86
Match the feature to the Aruba OS version (Matches may be used more than once.)

答案：

解題說明：

問題 #87
......

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HPE6-A85參考資料: https://www.kaoguti.com/HPE6-A85_exam-pdf.html

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