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| Section | Objectives |
|---|---|
| Layer 3 Technologies | - OSPF operations and troubleshooting
|
| Infrastructure Services | - IP services and optimization
|
| VPN Technologies | - GRE and IPsec tunneling
|
| Infrastructure Security | - Device hardening and access control
|
300-410学習資料は、消費者に無料の試用サービスをJPNTest提供します。 300-410学習資料に興味があり、Cisco無料でトライアル質問バンクをすぐにダウンロードして体験できます。 トライアルを通じて、300-410試験ガイドでさまざまな学習経験ができます。私たちの言うことは嘘ではないことがわかり、すぐに製品に恋をすることになります。 あなたの人生の成功の鍵として、300-410学習教材があなたにもたらす利益は金銭では測定されません。 300-410試験トレントは、最短時間でImplementing Cisco Enterprise Advanced Routing and Services試験に合格するのに役立ちます。
質問 # 608 
Refer to the exhibit A network engineer notices that the configured track option is down Which configuration resolves the issue*?
正解：D
質問 # 609
An administrator attempts to download the pack NBAR2 file using TFTP from the CPE router to another device over the Gi0/0 interface. The CPE is configured as below:
The transfer fails. Which action resolves the issue?
正解：B
質問 # 610
LAB SIMULATION 11
Guidelines
This is a lab item in which tasks will be performed on virtual devices.
- Refer to the Tasks tab to view the tasks for this lab item.
- Refer to the Topology tab to access the device console(s) and perform the tasks.
- Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window.
- All necessary preconfigurations have been applied.
- Do not change the enable password or hostname for any device.
- Save your configurations to NVRAM before moving to the next item.
- Click Next at the bottom of the screen to submit this lab and move to the next question.
- When Next is clicked, the lab closes and cannot be reopened.
Topology
Tasks
Configure IPSec security policy on tunnel interfaces to ensure data confidentiality and integrity where mGRE tunnels are up and running between HUB and SPOKE routers.
1. Configure the ISAKMP policy parameters with the following attributes:
- AES256
- MD5
- Group2
- lifetime 86400
2. Ensure that GRE IP Header should be encrypted inside the IPSec packet.
3. Configure a flexible ISAKMP Policy to add peers that have the dynamic IP addresses.
Use IPSec phase-2 transform-set name as 'T-SET' and IPSec Profile name as 'T-SET-PROFILE'.
Use ISAKMP key "abc123". Verify configuration with Ping from PC1 to PC2 and PC3.
正解：
解説：
Configuration for Hub (R0) and Spokes (R1, R2)
1. Configure ISAKMP Policy:
AES256 encryption
MD5 hashing
Group2 for Diffie-Hellman group
Lifetime of 86400 seconds
This configuration will be the same for Hub and Spokes:
crypto isakmp policy 10
encryption aes 256
hash md5
group 2
lifetime 86400
2. Configure Pre-shared Key:
Use a shared key of "abc123" to establish the ISAKMP peer authentication.
Use a shared key of "abc123" to establish the ISAKMP peer authentication.
crypto isakmp key abc123 address 0.0.0.0
3. Configure IPSec Phase-2 Transform Set:
Use transform set name as T-SETwith AES encryption and HMAC authentication.
crypto ipsec transform-set T-SET esp-aes esp-md5-hmac
4. Configure IPSec Profile:
Use IPSec Profile name as T-SET-PROFILEto apply to the tunnel interfaces.
crypto ipsec profile T-SET-PROFILE
set transform-set T-SET
5. Configure Tunnel Interfaces on R0, R1, and R2:
Apply the IPSec profile on tunnel interfaces to ensure encryption for data traffic.
Hub (R0):
interface Tunnel0
ip address 10.0.0.254 255.255.255.0
tunnel source e0/0
tunnel mode gre multipoint
tunnel protection ipsec profile T-SET-PROFILE
Spoke 1 (R1):
interface Tunnel0
ip address 10.0.0.1 255.255.255.0
tunnel source e0/0
tunnel destination 10.0.0.254
tunnel protection ipsec profile T-SET-PROFILE
Spoke 2 (R2):
interface Tunnel0
ip address 10.0.0.2 255.255.255.0
tunnel source e0/0
tunnel destination 10.0.0.254
tunnel protection ipsec profile T-SET-PROFILE
6. Verification:
Verify the configuration by pinging from PC1 to PC2 and PC3.
Ensure the tunnel is up and the IPSec security association is established.
Verification Commands:
show crypto isakmp sa
show crypto ipsec sa
Ping Verification:
ping 10.100.1.10 // From PC1 to PC2
ping 10.100.2.10 // From PC1 to PC3
This configuration ensures that GRE IP headers are encrypted inside the IPSec packet, and the mGRE tunnels are protected for both data confidentiality and integrity.
質問 # 611
Which IGPs are supported by the MPLS LDP autoconfiguration feature?
正解：D
解説：
The MPLS LDP Autoconfiguration feature enables you to globally enable LDP on every interface associated with an IGP instance. This feature is supported on OSPF and IS-IS IGPs. It provides a means to block LDP from being enabled on interfaces that you do not want enabled.
Reference: https://www.cisco.com/c/en/us/td/docs/ios/mpls/configuration/guide/convert/mp_ldp_ book/mp_ldp_autoconfig.html
質問 # 612
What is a limitation of IPv6 RA Guard?
正解：D
解説：
Restrictions for IPv6 RA Guard
The IPv6 RA Guard feature does not offer protection in environments where IPv6 traffic is tunneled.
This feature is supported only in hardware when the ternary content addressable memory (TCAM) is programmed.
This feature can be configured on a switch port interface in the ingress direction.
This feature supports host mode and router mode.
This feature is supported only in the ingress direction; it is not supported in the egress direction.
This feature is not supported on EtherChannel and EtherChannel port members.
This feature is not supported on trunk ports with merge mode.
This feature is supported on auxiliary VLANs and private VLANs (PVLANs). In the case of PVLANs, primary VLAN features are inherited and merged with port features.
Packets dropped by the IPv6 RA Guard feature can be spanned.
Reference:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipv6_fhsec/configuration/xe-16-10/ip6f-xe-16-10-book/ip6-ra-guard.html#GUID-589AF00C-7499-439F-AD23-51005D61CAB7
質問 # 613
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