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質問 1：
A network architect needs to design a solution to ensure every cloud environment network is built to the same baseline. The solution must meet the following requirements:
* Use automated deployment.
* Easily update multiple environments.
* Share code with a community of practice.
Which of the following are the best solutions? (Choose two.)
A. Public code repository
B. Deployment runbooks
C. CI/CD pipelines
D. Automated image deployment
E. Deployment guides
F. Private code repository
正解：A,C
解説: (Pass4Test メンバーにのみ表示されます)
質問 2：
A network engineer needs to implement a cloud-native solution. The solution must allow the recording of network conversation metadata of the host and appliances attached to a VPC. Which of the following will accomplish these goals with the least effort?
A. Enabling network flow
B. Configuring SNMP traps
C. Installing a cloud monitoring agent
D. Implementing QoS network tagging
正解：A
解説: (Pass4Test メンバーにのみ表示されます)
質問 3：
A company deployed new applications in the cloud and configured a site-to-site VPN to connect the internal data center with the cloud. The IT team wants the internal servers to connect to those applications without using public IP addresses. Which of the following is the best solution?
A. Create a DNS server in the cloud. Configure the DNS server in the customer data center to forward DNS requests for cloud resources to the cloud DNS server.
B. Register applications on the cloud with a public DNS server and configure internal servers to connect to them using their public DNS names.
C. Configure proxy service in the site-to-site VPN to allow internal servers to access applications through the proxy.
D. Configure a NAT server on the cloud to allow internal servers to connect to the applications through the NAT server.
正解：A
解説: (Pass4Test メンバーにのみ表示されます)
質問 4：
An outage occurred after a software upgrade on core switching. A network administrator thinks that the firmware installed had a bug. Which of the following should the network administrator do next?
A. Test the theory to determine cause.
B. Implement the solution.
C. Establish a plan of action to resolve the issue.
D. Document lessons learned.
正解：A
解説: (Pass4Test メンバーにのみ表示されます)
質問 5：
A network administrator is troubleshooting a user's workstation that is unable to connect to the company network. The results of ipconfig and arp -a are shown. The user's workstation:
A router on the same network shows the following output:
* Has an IP address of 10.21.12.8
* Has subnet mask 255.255.255.0
* Default gateway is 10.21.12.254
* ARP table shows 10.21.12.8 mapped to 1A-21-11-31-74-4C (a different MAC address than the local adapter)
A. Asynchronous routing
B. DHCP server down
C. IP address conflict
D. Broadcast storm
正解：C
解説: (Pass4Test メンバーにのみ表示されます)
質問 6：
A network administrator receives a ticket from one of the company's offices about video calls that work normally for one minute and then get very choppy. The network administrator pings the video server from that site to ensure that it is reachable:
(Ping output shows responses with varying latency times, including spikes: 11ms, 672ms, 849ms, 92ms, etc.)
Which of the following is most likely the cause of the video call issue?
A. Throughput
B. Jitter
C. Loss
D. Latency
正解：B
解説: (Pass4Test メンバーにのみ表示されます)
質問 7：
A call center company provides its services through a VoIP infrastructure. Recently, the call center set up an application to manage its documents on a cloud application. The application is causing recurring audio losses for VoIP callers. The network administrator needs to fix the issue with the least expensive solution. Which of the following is the best approach?
A. Adding a second internet link and physically splitting voice and data networks into different routes
B. Setting up VoIP devices to use a voice codec with a higher compression rate
C. Creating two VLANs, one for voice and the other for data
D. Configuring QoS rules at the internet router to prioritize the VoIP calls
正解：D
解説: (Pass4Test メンバーにのみ表示されます)
質問 8：
A network architect needs to design a new network to connect multiple private data centers. The network must:
* Provide privacy for all traffic between locations
* Use preexisting internet connections
* Use intelligent steering of application traffic over the best path
Which of the following best meets these requirements?
A. ExpressRoute
B. SD-WAN
C. MPLS connections
D. Site-to-site VPN
正解：B
解説: (Pass4Test メンバーにのみ表示されます)
質問 9：
A network architect is working on a physical network design template for a small education institution's satellite campus that is not yet built. The new campus location will consist of two small buildings with classrooms, one screening room with audiovisual equipment, and 200 seats for students. Which of the following enterprise network designs should the architect suggest?
A. Dual-layer
B. Collapsed core
C. Three-tier
D. Hybrid
正解：B
解説: (Pass4Test メンバーにのみ表示されます)
A network architect needs to design a solution to ensure every cloud environment network is built to the same baseline. The solution must meet the following requirements:
* Use automated deployment.
* Easily update multiple environments.
* Share code with a community of practice.
Which of the following are the best solutions? (Choose two.)
A. Public code repository
B. Deployment runbooks
C. CI/CD pipelines
D. Automated image deployment
E. Deployment guides
F. Private code repository
正解：A,C
解説: (Pass4Test メンバーにのみ表示されます)
質問 2：
A network engineer needs to implement a cloud-native solution. The solution must allow the recording of network conversation metadata of the host and appliances attached to a VPC. Which of the following will accomplish these goals with the least effort?
A. Enabling network flow
B. Configuring SNMP traps
C. Installing a cloud monitoring agent
D. Implementing QoS network tagging
正解：A
解説: (Pass4Test メンバーにのみ表示されます)
質問 3：
A company deployed new applications in the cloud and configured a site-to-site VPN to connect the internal data center with the cloud. The IT team wants the internal servers to connect to those applications without using public IP addresses. Which of the following is the best solution?
A. Create a DNS server in the cloud. Configure the DNS server in the customer data center to forward DNS requests for cloud resources to the cloud DNS server.
B. Register applications on the cloud with a public DNS server and configure internal servers to connect to them using their public DNS names.
C. Configure proxy service in the site-to-site VPN to allow internal servers to access applications through the proxy.
D. Configure a NAT server on the cloud to allow internal servers to connect to the applications through the NAT server.
正解：A
解説: (Pass4Test メンバーにのみ表示されます)
質問 4：
An outage occurred after a software upgrade on core switching. A network administrator thinks that the firmware installed had a bug. Which of the following should the network administrator do next?
A. Test the theory to determine cause.
B. Implement the solution.
C. Establish a plan of action to resolve the issue.
D. Document lessons learned.
正解：A
解説: (Pass4Test メンバーにのみ表示されます)
質問 5：
A network administrator is troubleshooting a user's workstation that is unable to connect to the company network. The results of ipconfig and arp -a are shown. The user's workstation:
A router on the same network shows the following output:
* Has an IP address of 10.21.12.8
* Has subnet mask 255.255.255.0
* Default gateway is 10.21.12.254
* ARP table shows 10.21.12.8 mapped to 1A-21-11-31-74-4C (a different MAC address than the local adapter)
A. Asynchronous routing
B. DHCP server down
C. IP address conflict
D. Broadcast storm
正解：C
解説: (Pass4Test メンバーにのみ表示されます)
質問 6：
A network administrator receives a ticket from one of the company's offices about video calls that work normally for one minute and then get very choppy. The network administrator pings the video server from that site to ensure that it is reachable:
(Ping output shows responses with varying latency times, including spikes: 11ms, 672ms, 849ms, 92ms, etc.)
Which of the following is most likely the cause of the video call issue?
A. Throughput
B. Jitter
C. Loss
D. Latency
正解：B
解説: (Pass4Test メンバーにのみ表示されます)
質問 7：
A call center company provides its services through a VoIP infrastructure. Recently, the call center set up an application to manage its documents on a cloud application. The application is causing recurring audio losses for VoIP callers. The network administrator needs to fix the issue with the least expensive solution. Which of the following is the best approach?
A. Adding a second internet link and physically splitting voice and data networks into different routes
B. Setting up VoIP devices to use a voice codec with a higher compression rate
C. Creating two VLANs, one for voice and the other for data
D. Configuring QoS rules at the internet router to prioritize the VoIP calls
正解：D
解説: (Pass4Test メンバーにのみ表示されます)
質問 8：
A network architect needs to design a new network to connect multiple private data centers. The network must:
* Provide privacy for all traffic between locations
* Use preexisting internet connections
* Use intelligent steering of application traffic over the best path
Which of the following best meets these requirements?
A. ExpressRoute
B. SD-WAN
C. MPLS connections
D. Site-to-site VPN
正解：B
解説: (Pass4Test メンバーにのみ表示されます)
質問 9：
A network architect is working on a physical network design template for a small education institution's satellite campus that is not yet built. The new campus location will consist of two small buildings with classrooms, one screening room with audiovisual equipment, and 200 seats for students. Which of the following enterprise network designs should the architect suggest?
A. Dual-layer
B. Collapsed core
C. Three-tier
D. Hybrid
正解：B
解説: (Pass4Test メンバーにのみ表示されます)
唐沢** -
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